docs: update .all-contributorsrc [skip ci]

docs: update README.md [skip ci]
fix: change 'swinged' to 'swung' in sword.java and hammer.java of bridge pattern (#1779 )
2021-06-04 18:52:20 +00:00 · 2021-06-04 18:52:19 +00:00 · 2021-06-04 21:50:40 +03:00 · 2021-06-04 21:39:47 +03:00 · 2021-06-04 21:36:42 +03:00 · 2021-05-31 22:39:42 +03:00
462 changed files with 9836 additions and 706 deletions
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@ -1132,7 +1132,8 @@
      "profile": "http://subho.xyz",
      "contributions": [
        "code",
-        "review"
+        "review",
+        "maintenance"
      ]
    },
    {
@ -1431,6 +1432,115 @@
      "contributions": [
        "code"
      ]
+    },
+    {
+      "login": "qfxl",
+      "name": "yonghong Xu",
+      "avatar_url": "https://avatars.githubusercontent.com/u/14086462?v=4",
+      "profile": "https://xuyonghong.cn/",
+      "contributions": [
+        "doc"
+      ]
+    },
+    {
+      "login": "jinishavora",
+      "name": "jinishavora",
+      "avatar_url": "https://avatars.githubusercontent.com/u/40777762?v=4",
+      "profile": "https://www.linkedin.com/in/jinisha-vora",
+      "contributions": [
+        "review",
+        "code"
+      ]
+    },
+    {
+      "login": "eas5",
+      "name": "Elvys Soares",
+      "avatar_url": "https://avatars.githubusercontent.com/u/50836521?v=4",
+      "profile": "https://github.com/eas5",
+      "contributions": [
+        "code"
+      ]
+    },
+    {
+      "login": "zWeBrain",
+      "name": "zWeBrain",
+      "avatar_url": "https://avatars.githubusercontent.com/u/46642512?v=4",
+      "profile": "https://github.com/zWeBrain",
+      "contributions": [
+        "code"
+      ]
+    },
+    {
+      "login": "Al-assad",
+      "name": "余林颖",
+      "avatar_url": "https://avatars.githubusercontent.com/u/22493821?v=4",
+      "profile": "https://al-assad.github.io/notion/",
+      "contributions": [
+        "translation"
+      ]
+    },
+    {
+      "login": "STudio26",
+      "name": "Alain",
+      "avatar_url": "https://avatars.githubusercontent.com/u/6988911?v=4",
+      "profile": "https://github.com/STudio26",
+      "contributions": [
+        "translation"
+      ]
+    },
+    {
+      "login": "DEV-VRUPER",
+      "name": "VR",
+      "avatar_url": "https://avatars.githubusercontent.com/u/30525467?v=4",
+      "profile": "https://github.com/DEV-VRUPER",
+      "contributions": [
+        "doc"
+      ]
+    },
+    {
+      "login": "JackieNim",
+      "name": "JackieNim",
+      "avatar_url": "https://avatars.githubusercontent.com/u/4138836?v=4",
+      "profile": "https://github.com/JackieNim",
+      "contributions": [
+        "code"
+      ]
+    },
+    {
+      "login": "EdisonE3",
+      "name": "EdisonE3",
+      "avatar_url": "https://avatars.githubusercontent.com/u/52118917?v=4",
+      "profile": "https://github.com/EdisonE3",
+      "contributions": [
+        "code"
+      ]
+    },
+    {
+      "login": "tao-sun2",
+      "name": "Tao",
+      "avatar_url": "https://avatars.githubusercontent.com/u/66189688?v=4",
+      "profile": "https://github.com/tao-sun2",
+      "contributions": [
+        "code"
+      ]
+    },
+    {
+      "login": "JuanManuelAbate",
+      "name": "Juan Manuel Abate",
+      "avatar_url": "https://avatars.githubusercontent.com/u/16357060?v=4",
+      "profile": "https://github.com/JuanManuelAbate",
+      "contributions": [
+        "translation"
+      ]
+    },
+    {
+      "login": "Xenilo137",
+      "name": "Xenilo137",
+      "avatar_url": "https://avatars.githubusercontent.com/u/24865069?v=4",
+      "profile": "https://github.com/Xenilo137",
+      "contributions": [
+        "code"
+      ]
    }
  ],
  "contributorsPerLine": 4,
--- a/.github/workflows/maven-ci.yml
+++ b/.github/workflows/maven-ci.yml
@ -40,25 +40,26 @@ jobs:
    steps:

    - name: Checkout Code
-      uses: actions/checkout@master
+      uses: actions/checkout@v2
      with:
        # Disabling shallow clone for improving relevancy of SonarQube reporting
        fetch-depth: 0

    - name: Set up JDK 11
-      uses: actions/setup-java@master
+      uses: actions/setup-java@v2
      with:
        java-version: 11
+        distribution: 'adopt'

    - name: Cache SonarCloud packages
-      uses: actions/cache@master
+      uses: actions/cache@v2
      with:
        path: ~/.sonar/cache
        key: ${{ runner.os }}-sonar
        restore-keys: ${{ runner.os }}-sonar

    - name: Cache Maven dependencies
-      uses: actions/cache@master
+      uses: actions/cache@v2
      with:
        path: ~/.m2/repository
        key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
--- a/.github/workflows/maven-pr-builder.yml
+++ b/.github/workflows/maven-pr-builder.yml
@ -38,15 +38,16 @@ jobs:

    steps:
    - name: Checkout Code
-      uses: actions/checkout@master
+      uses: actions/checkout@v2
    
    - name: Set up JDK 11
-      uses: actions/setup-java@master
+      uses: actions/setup-java@v2
      with:
        java-version: 11
+        distribution: 'adopt'
    
    - name: Cache Maven Dependecies
-      uses: actions/cache@master
+      uses: actions/cache@v2
      with:
        path: ~/.m2/repository
        key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
--- a/README.md
+++ b/README.md
@ -6,16 +6,16 @@

 ![Java CI](https://github.com/iluwatar/java-design-patterns/workflows/Java%20CI/badge.svg)
 [![License MIT](https://img.shields.io/badge/license-MIT-blue.svg)](https://raw.githubusercontent.com/iluwatar/java-design-patterns/master/LICENSE.md)
-[![Lines of Code](https://sonarcloud.io/api/project_badges/measure?project=iluwatar_java-design-patterns&metric=ncloc)](https://sonarcloud.io/dashboard?id=iluwatar_java-design-patterns) 
+[![Lines of Code](https://sonarcloud.io/api/project_badges/measure?project=iluwatar_java-design-patterns&metric=ncloc)](https://sonarcloud.io/dashboard?id=iluwatar_java-design-patterns)
 [![Coverage](https://sonarcloud.io/api/project_badges/measure?project=iluwatar_java-design-patterns&metric=coverage)](https://sonarcloud.io/dashboard?id=iluwatar_java-design-patterns)
 [![Join the chat at https://gitter.im/iluwatar/java-design-patterns](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/iluwatar/java-design-patterns?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 <!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
-[![All Contributors](https://img.shields.io/badge/all_contributors-157-orange.svg?style=flat-square)](#contributors-)
+[![All Contributors](https://img.shields.io/badge/all_contributors-169-orange.svg?style=flat-square)](#contributors-)
 <!-- ALL-CONTRIBUTORS-BADGE:END -->

 <br/>

-Read in different language : [![CN](/assets/flags/CN.png)**CN**](/zh/README.md), [![KR](/assets/flags/KR.png)**KR**](/ko/README.md), [![FR](/assets/flags/FR.png)**FR**](/fr/README.md), [![TR](/assets/flags/TR.png)**TR**](/tr/README.md), [![AR](/assets/flags/AR.png)**AR**](/ar/README.md)
+Read in different language : [**zh**](/localization/zh/README.md), [**ko**](/localization/ko/README.md), [**fr**](/localization/fr/README.md), [**tr**](/localization/tr/README.md), [**ar**](/localization/ar/README.md), [**es**](/localization/es/README.md)

 <br/>

@ -34,7 +34,7 @@ are familiar with the patterns.
 # Getting started

 This site showcases Java Design Patterns. The solutions have been developed by
-experienced programmers and architects from the open source community. The 
+experienced programmers and architects from the open source community. The
 patterns can be browsed by their high level descriptions or by looking at their
 source code. The source code examples are well commented and can be thought as
 programming tutorials on how to implement a specific pattern. We use the most
@ -49,7 +49,7 @@ patterns should only be introduced when they are needed for practical
 extensibility.

 Once you are familiar with these concepts you can start drilling down into the
-[available design patterns](https://java-design-patterns.com/patterns/) by any 
+[available design patterns](https://java-design-patterns.com/patterns/) by any
 of the following approaches

 - Search for a specific pattern by name. Can't find one? Please report a new pattern [here](https://github.com/iluwatar/java-design-patterns/issues).
@ -61,8 +61,8 @@ in your architectures and have as much fun learning them as we had developing th

 # How to contribute

-If you are willing to contribute to the project you will find the relevant information in 
-our [developer wiki](https://github.com/iluwatar/java-design-patterns/wiki). We will help 
+If you are willing to contribute to the project you will find the relevant information in
+our [developer wiki](https://github.com/iluwatar/java-design-patterns/wiki). We will help
 you and answer your questions in the [Gitter chatroom](https://gitter.im/iluwatar/java-design-patterns).

 # License
@ -259,7 +259,7 @@ This project is licensed under the terms of the MIT license.
    <td align="center"><a href="https://www.linkedin.com/in/ashish-trivedi-218379135/"><img src="https://avatars3.githubusercontent.com/u/23194128?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Ashish Trivedi</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ashishtrivedi16" title="Code">💻</a></td>
    <td align="center"><a href="https://rayyounghong.com"><img src="https://avatars1.githubusercontent.com/u/41055099?v=4?s=100" width="100px;" alt=""/><br /><sub><b>洪月阳</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=RayYH" title="Code">💻</a></td>
    <td align="center"><a href="https://xdvrx1.github.io/"><img src="https://avatars0.githubusercontent.com/u/47092464?v=4?s=100" width="100px;" alt=""/><br /><sub><b>xdvrx1</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3Axdvrx1" title="Reviewed Pull Requests">👀</a> <a href="#ideas-xdvrx1" title="Ideas, Planning, & Feedback">🤔</a></td>
-    <td align="center"><a href="http://subho.xyz"><img src="https://avatars0.githubusercontent.com/u/13291222?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Subhrodip Mohanta</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ohbus" title="Code">💻</a> <a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3Aohbus" title="Reviewed Pull Requests">👀</a></td>
+    <td align="center"><a href="http://subho.xyz"><img src="https://avatars0.githubusercontent.com/u/13291222?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Subhrodip Mohanta</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ohbus" title="Code">💻</a> <a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3Aohbus" title="Reviewed Pull Requests">👀</a> <a href="#maintenance-ohbus" title="Maintenance">🚧</a></td>
  </tr>
  <tr>
    <td align="center"><a href="https://github.com/nahteb"><img src="https://avatars3.githubusercontent.com/u/13121570?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Bethan Palmer</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=nahteb" title="Code">💻</a></td>
@ -311,6 +311,24 @@ This project is licensed under the terms of the MIT license.
  </tr>
  <tr>
    <td align="center"><a href="https://github.com/noamgrinch"><img src="https://avatars.githubusercontent.com/u/31648669?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Noam Greenshtain</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=noamgrinch" title="Code">💻</a></td>
+    <td align="center"><a href="https://xuyonghong.cn/"><img src="https://avatars.githubusercontent.com/u/14086462?v=4?s=100" width="100px;" alt=""/><br /><sub><b>yonghong Xu</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=qfxl" title="Documentation">📖</a></td>
+    <td align="center"><a href="https://www.linkedin.com/in/jinisha-vora"><img src="https://avatars.githubusercontent.com/u/40777762?v=4?s=100" width="100px;" alt=""/><br /><sub><b>jinishavora</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3Ajinishavora" title="Reviewed Pull Requests">👀</a> <a href="https://github.com/iluwatar/java-design-patterns/commits?author=jinishavora" title="Code">💻</a></td>
+    <td align="center"><a href="https://github.com/eas5"><img src="https://avatars.githubusercontent.com/u/50836521?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Elvys Soares</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=eas5" title="Code">💻</a></td>
+  </tr>
+  <tr>
+    <td align="center"><a href="https://github.com/zWeBrain"><img src="https://avatars.githubusercontent.com/u/46642512?v=4?s=100" width="100px;" alt=""/><br /><sub><b>zWeBrain</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=zWeBrain" title="Code">💻</a></td>
+    <td align="center"><a href="https://al-assad.github.io/notion/"><img src="https://avatars.githubusercontent.com/u/22493821?v=4?s=100" width="100px;" alt=""/><br /><sub><b>余林颖</b></sub></a><br /><a href="#translation-Al-assad" title="Translation">🌍</a></td>
+    <td align="center"><a href="https://github.com/STudio26"><img src="https://avatars.githubusercontent.com/u/6988911?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Alain</b></sub></a><br /><a href="#translation-STudio26" title="Translation">🌍</a></td>
+    <td align="center"><a href="https://github.com/DEV-VRUPER"><img src="https://avatars.githubusercontent.com/u/30525467?v=4?s=100" width="100px;" alt=""/><br /><sub><b>VR</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=DEV-VRUPER" title="Documentation">📖</a></td>
+  </tr>
+  <tr>
+    <td align="center"><a href="https://github.com/JackieNim"><img src="https://avatars.githubusercontent.com/u/4138836?v=4?s=100" width="100px;" alt=""/><br /><sub><b>JackieNim</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=JackieNim" title="Code">💻</a></td>
+    <td align="center"><a href="https://github.com/EdisonE3"><img src="https://avatars.githubusercontent.com/u/52118917?v=4?s=100" width="100px;" alt=""/><br /><sub><b>EdisonE3</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=EdisonE3" title="Code">💻</a></td>
+    <td align="center"><a href="https://github.com/tao-sun2"><img src="https://avatars.githubusercontent.com/u/66189688?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Tao</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=tao-sun2" title="Code">💻</a></td>
+    <td align="center"><a href="https://github.com/JuanManuelAbate"><img src="https://avatars.githubusercontent.com/u/16357060?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Juan Manuel Abate</b></sub></a><br /><a href="#translation-JuanManuelAbate" title="Translation">🌍</a></td>
+  </tr>
+  <tr>
+    <td align="center"><a href="https://github.com/Xenilo137"><img src="https://avatars.githubusercontent.com/u/24865069?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Xenilo137</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Xenilo137" title="Code">💻</a></td>
  </tr>
 </table>

--- a/abstract-document/README.md
+++ b/abstract-document/README.md
@ -4,6 +4,7 @@ title: Abstract Document
 folder: abstract-document
 permalink: /patterns/abstract-document/
 categories: Structural
+language: en
 tags: 
 - Extensibility
 ---
--- a/abstract-document/pom.xml
+++ b/abstract-document/pom.xml
@ -30,7 +30,7 @@
 	<parent>
 		<artifactId>java-design-patterns</artifactId>
 		<groupId>com.iluwatar</groupId>
-		<version>1.24.0-SNAPSHOT</version>
+		<version>1.25.0-SNAPSHOT</version>
 	</parent>
 	<artifactId>abstract-document</artifactId>
 	<dependencies>
--- a/abstract-factory/README.md
+++ b/abstract-factory/README.md
@ -4,6 +4,7 @@ title: Abstract Factory
 folder: abstract-factory
 permalink: /patterns/abstract-factory/
 categories: Creational
+language: en
 tags:
 - Gang of Four
 ---
--- a/abstract-factory/pom.xml
+++ b/abstract-factory/pom.xml
@ -31,7 +31,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.24.0-SNAPSHOT</version>
+		<version>1.25.0-SNAPSHOT</version>
 	</parent>
 	<artifactId>abstract-factory</artifactId>
 	<dependencies>
--- a/active-object/README.md
+++ b/active-object/README.md
@ -4,6 +4,7 @@ title: Active Object
 folder: active-object
 permalink: /patterns/active-object/
 categories: Concurrency
+language: en
 tags:
 - Performance
 ---
--- a/active-object/pom.xml
+++ b/active-object/pom.xml
@ -31,7 +31,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.24.0-SNAPSHOT</version>
+		<version>1.25.0-SNAPSHOT</version>
 	</parent>
 	<artifactId>active-object</artifactId>
 	<dependencies>
--- a/acyclic-visitor/README.md
+++ b/acyclic-visitor/README.md
@ -4,6 +4,7 @@ title: Acyclic Visitor
 folder: acyclic-visitor
 permalink: /patterns/acyclic-visitor/
 categories: Behavioral
+language: en
 tags:
 - Extensibility
 ---
--- a/acyclic-visitor/pom.xml
+++ b/acyclic-visitor/pom.xml
@ -30,7 +30,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.24.0-SNAPSHOT</version>
+		<version>1.25.0-SNAPSHOT</version>
 	</parent>

 	<artifactId>acyclic-visitor</artifactId>
--- a/adapter/README.md
+++ b/adapter/README.md
@ -4,6 +4,7 @@ title: Adapter
 folder: adapter
 permalink: /patterns/adapter/
 categories: Structural
+language: en
 tags:
 - Gang of Four
 ---
--- a/adapter/pom.xml
+++ b/adapter/pom.xml
@ -31,7 +31,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.24.0-SNAPSHOT</version>
+		<version>1.25.0-SNAPSHOT</version>
 	</parent>
 	<artifactId>adapter</artifactId>
 	<dependencies>
--- a/aggregator-microservices/README.md
+++ b/aggregator-microservices/README.md
@ -4,6 +4,7 @@ title: Aggregator Microservices
 folder: aggregator-microservices
 permalink: /patterns/aggregator-microservices/
 categories: Architectural
+language: en
 tags:
 - Cloud distributed
 - Decoupling
--- a/aggregator-microservices/aggregator-service/pom.xml
+++ b/aggregator-microservices/aggregator-service/pom.xml
@ -29,7 +29,7 @@
 	<parent>
 		<artifactId>aggregator-microservices</artifactId>
 		<groupId>com.iluwatar</groupId>
-		<version>1.24.0-SNAPSHOT</version>
+		<version>1.25.0-SNAPSHOT</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>aggregator-service</artifactId>
--- a/aggregator-microservices/information-microservice/pom.xml
+++ b/aggregator-microservices/information-microservice/pom.xml
@ -29,7 +29,7 @@
 	<parent>
 		<artifactId>aggregator-microservices</artifactId>
 		<groupId>com.iluwatar</groupId>
-		<version>1.24.0-SNAPSHOT</version>
+		<version>1.25.0-SNAPSHOT</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>

--- a/aggregator-microservices/inventory-microservice/pom.xml
+++ b/aggregator-microservices/inventory-microservice/pom.xml
@ -29,7 +29,7 @@
 	<parent>
 		<artifactId>aggregator-microservices</artifactId>
 		<groupId>com.iluwatar</groupId>
-		<version>1.24.0-SNAPSHOT</version>
+		<version>1.25.0-SNAPSHOT</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>inventory-microservice</artifactId>
--- a/aggregator-microservices/pom.xml
+++ b/aggregator-microservices/pom.xml
@ -29,7 +29,7 @@
    <parent>
        <artifactId>java-design-patterns</artifactId>
        <groupId>com.iluwatar</groupId>
-        <version>1.24.0-SNAPSHOT</version>
+        <version>1.25.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <artifactId>aggregator-microservices</artifactId>
--- a/ambassador/README.md
+++ b/ambassador/README.md
@ -4,6 +4,7 @@ title: Ambassador
 folder: ambassador
 permalink: /patterns/ambassador/
 categories: Structural
+language: en
 tags:
  - Decoupling
  - Cloud distributed
--- a/ambassador/pom.xml
+++ b/ambassador/pom.xml
@ -29,7 +29,7 @@
 	<parent>
 		<artifactId>java-design-patterns</artifactId>
 		<groupId>com.iluwatar</groupId>
-		<version>1.24.0-SNAPSHOT</version>
+		<version>1.25.0-SNAPSHOT</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>ambassador</artifactId>
--- a/api-gateway/README.md
+++ b/api-gateway/README.md
@ -4,6 +4,7 @@ title: API Gateway
 folder: api-gateway
 permalink: /patterns/api-gateway/
 categories: Architectural
+language: en
 tags:
  - Cloud distributed
  - Decoupling
--- a/api-gateway/api-gateway-service/pom.xml
+++ b/api-gateway/api-gateway-service/pom.xml
@ -29,7 +29,7 @@
  <parent>
    <artifactId>api-gateway</artifactId>
    <groupId>com.iluwatar</groupId>
-    <version>1.24.0-SNAPSHOT</version>
+    <version>1.25.0-SNAPSHOT</version>
  </parent>
  <modelVersion>4.0.0</modelVersion>
  <artifactId>api-gateway-service</artifactId>
--- a/api-gateway/image-microservice/pom.xml
+++ b/api-gateway/image-microservice/pom.xml
@ -29,7 +29,7 @@
  <parent>
    <artifactId>api-gateway</artifactId>
    <groupId>com.iluwatar</groupId>
-    <version>1.24.0-SNAPSHOT</version>
+    <version>1.25.0-SNAPSHOT</version>
  </parent>
  <modelVersion>4.0.0</modelVersion>
  <artifactId>image-microservice</artifactId>
--- a/api-gateway/pom.xml
+++ b/api-gateway/pom.xml
@ -29,7 +29,7 @@
  <parent>
    <artifactId>java-design-patterns</artifactId>
    <groupId>com.iluwatar</groupId>
-    <version>1.24.0-SNAPSHOT</version>
+    <version>1.25.0-SNAPSHOT</version>
  </parent>
  <modelVersion>4.0.0</modelVersion>
  <artifactId>api-gateway</artifactId>
--- a/api-gateway/price-microservice/pom.xml
+++ b/api-gateway/price-microservice/pom.xml
@ -29,7 +29,7 @@
  <parent>
    <artifactId>api-gateway</artifactId>
    <groupId>com.iluwatar</groupId>
-    <version>1.24.0-SNAPSHOT</version>
+    <version>1.25.0-SNAPSHOT</version>
  </parent>

  <modelVersion>4.0.0</modelVersion>
--- a/arrange-act-assert/README.md
+++ b/arrange-act-assert/README.md
@ -4,6 +4,7 @@ title: Arrange/Act/Assert
 folder: arrange-act-assert
 permalink: /patterns/arrange-act-assert/
 categories: Idiom
+language: en
 tags:
 - Testing
 ---
--- a/arrange-act-assert/pom.xml
+++ b/arrange-act-assert/pom.xml
@ -29,7 +29,7 @@
  <parent>
    <artifactId>java-design-patterns</artifactId>
    <groupId>com.iluwatar</groupId>
-    <version>1.24.0-SNAPSHOT</version>
+    <version>1.25.0-SNAPSHOT</version>
  </parent>
  <modelVersion>4.0.0</modelVersion>

--- a/assets/flags/AR.png
+++ b/assets/flags/AR.png
--- a/assets/flags/CN.png
+++ b/assets/flags/CN.png
--- a/assets/flags/FR.png
+++ b/assets/flags/FR.png
--- a/assets/flags/KR.png
+++ b/assets/flags/KR.png
--- a/assets/flags/TR.png
+++ b/assets/flags/TR.png
--- a/async-method-invocation/README.md
+++ b/async-method-invocation/README.md
@ -4,26 +4,166 @@ title: Async Method Invocation
 folder: async-method-invocation
 permalink: /patterns/async-method-invocation/
 categories: Concurrency
+language: en
 tags:
 - Reactive
 ---

 ## Intent
-Asynchronous method invocation is pattern where the calling thread
+
+Asynchronous method invocation is a pattern where the calling thread
 is not blocked while waiting results of tasks. The pattern provides parallel
 processing of multiple independent tasks and retrieving the results via
 callbacks or waiting until everything is done. 

+## Explanation
+
+Real world example
+
+> Launching space rockets is an exciting business. The mission command gives an order to launch and 
+> after some undetermined time, the rocket either launches successfully or fails miserably.
+
+In plain words
+
+> Asynchronous method invocation starts task processing and returns immediately before the task is 
+> ready. The results of the task processing are returned to the caller later.
+
+Wikipedia says
+
+> In multithreaded computer programming, asynchronous method invocation (AMI), also known as 
+> asynchronous method calls or the asynchronous pattern is a design pattern in which the call site 
+> is not blocked while waiting for the called code to finish. Instead, the calling thread is 
+> notified when the reply arrives. Polling for a reply is an undesired option.
+
+**Programmatic Example**
+
+In this example, we are launching space rockets and deploying lunar rovers.
+
+The application demonstrates the async method invocation pattern. The key parts of the pattern are 
+`AsyncResult` which is an intermediate container for an asynchronously evaluated value, 
+`AsyncCallback` which can be provided to be executed on task completion and `AsyncExecutor` that 
+manages the execution of the async tasks.
+
+```java
+public interface AsyncResult<T> {
+  boolean isCompleted();
+  T getValue() throws ExecutionException;
+  void await() throws InterruptedException;
+}
+```
+
+```java
+public interface AsyncCallback<T> {
+  void onComplete(T value, Optional<Exception> ex);
+}
+```
+
+```java
+public interface AsyncExecutor {
+  <T> AsyncResult<T> startProcess(Callable<T> task);
+  <T> AsyncResult<T> startProcess(Callable<T> task, AsyncCallback<T> callback);
+  <T> T endProcess(AsyncResult<T> asyncResult) throws ExecutionException, InterruptedException;
+}
+```
+
+`ThreadAsyncExecutor` is an implementation of `AsyncExecutor`. Some of its key parts are highlighted 
+next.
+
+```java
+public class ThreadAsyncExecutor implements AsyncExecutor {
+
+  @Override
+  public <T> AsyncResult<T> startProcess(Callable<T> task) {
+    return startProcess(task, null);
+  }
+
+  @Override
+  public <T> AsyncResult<T> startProcess(Callable<T> task, AsyncCallback<T> callback) {
+    var result = new CompletableResult<>(callback);
+    new Thread(
+            () -> {
+              try {
+                result.setValue(task.call());
+              } catch (Exception ex) {
+                result.setException(ex);
+              }
+            },
+            "executor-" + idx.incrementAndGet())
+        .start();
+    return result;
+  }
+
+  @Override
+  public <T> T endProcess(AsyncResult<T> asyncResult)
+      throws ExecutionException, InterruptedException {
+    if (!asyncResult.isCompleted()) {
+      asyncResult.await();
+    }
+    return asyncResult.getValue();
+  }
+}
+```
+
+Then we are ready to launch some rockets to see how everything works together.
+
+```java
+public static void main(String[] args) throws Exception {
+  // construct a new executor that will run async tasks
+  var executor = new ThreadAsyncExecutor();
+
+  // start few async tasks with varying processing times, two last with callback handlers
+  final var asyncResult1 = executor.startProcess(lazyval(10, 500));
+  final var asyncResult2 = executor.startProcess(lazyval("test", 300));
+  final var asyncResult3 = executor.startProcess(lazyval(50L, 700));
+  final var asyncResult4 = executor.startProcess(lazyval(20, 400), callback("Deploying lunar rover"));
+  final var asyncResult5 =
+      executor.startProcess(lazyval("callback", 600), callback("Deploying lunar rover"));
+
+  // emulate processing in the current thread while async tasks are running in their own threads
+  Thread.sleep(350); // Oh boy, we are working hard here
+  log("Mission command is sipping coffee");
+
+  // wait for completion of the tasks
+  final var result1 = executor.endProcess(asyncResult1);
+  final var result2 = executor.endProcess(asyncResult2);
+  final var result3 = executor.endProcess(asyncResult3);
+  asyncResult4.await();
+  asyncResult5.await();
+
+  // log the results of the tasks, callbacks log immediately when complete
+  log("Space rocket <" + result1 + "> launch complete");
+  log("Space rocket <" + result2 + "> launch complete");
+  log("Space rocket <" + result3 + "> launch complete");
+}
+```
+
+Here's the program console output.
+
+```java
+21:47:08.227 [executor-2] INFO com.iluwatar.async.method.invocation.App - Space rocket <test> launched successfully
+21:47:08.269 [main] INFO com.iluwatar.async.method.invocation.App - Mission command is sipping coffee
+21:47:08.318 [executor-4] INFO com.iluwatar.async.method.invocation.App - Space rocket <20> launched successfully
+21:47:08.335 [executor-4] INFO com.iluwatar.async.method.invocation.App - Deploying lunar rover <20>
+21:47:08.414 [executor-1] INFO com.iluwatar.async.method.invocation.App - Space rocket <10> launched successfully
+21:47:08.519 [executor-5] INFO com.iluwatar.async.method.invocation.App - Space rocket <callback> launched successfully
+21:47:08.519 [executor-5] INFO com.iluwatar.async.method.invocation.App - Deploying lunar rover <callback>
+21:47:08.616 [executor-3] INFO com.iluwatar.async.method.invocation.App - Space rocket <50> launched successfully
+21:47:08.617 [main] INFO com.iluwatar.async.method.invocation.App - Space rocket <10> launch complete
+21:47:08.617 [main] INFO com.iluwatar.async.method.invocation.App - Space rocket <test> launch complete
+21:47:08.618 [main] INFO com.iluwatar.async.method.invocation.App - Space rocket <50> launch complete
+```
+
 # Class diagram
+
 ![alt text](./etc/async-method-invocation.png "Async Method Invocation")

 ## Applicability
-Use async method invocation pattern when
+
+Use the async method invocation pattern when

 * You have multiple independent tasks that can run in parallel
 * You need to improve the performance of a group of sequential tasks
-* You have limited amount of processing capacity or long running tasks and the
-  caller should not wait the tasks to be ready
+* You have a limited amount of processing capacity or long-running tasks and the caller should not wait for the tasks to be ready

 ## Real world examples

--- a/async-method-invocation/pom.xml
+++ b/async-method-invocation/pom.xml
@ -31,7 +31,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.24.0-SNAPSHOT</version>
+		<version>1.25.0-SNAPSHOT</version>
 	</parent>
 	<artifactId>async-method-invocation</artifactId>
 	<dependencies>
--- a/async-method-invocation/src/main/java/com/iluwatar/async/method/invocation/App.java
+++ b/async-method-invocation/src/main/java/com/iluwatar/async/method/invocation/App.java
@ -27,10 +27,12 @@ import java.util.concurrent.Callable;
 import lombok.extern.slf4j.Slf4j;

 /**
- * This application demonstrates the async method invocation pattern. Key parts of the pattern are
- * <code>AsyncResult</code> which is an intermediate container for an asynchronously evaluated
- * value, <code>AsyncCallback</code> which can be provided to be executed on task completion and
- * <code>AsyncExecutor</code> that manages the execution of the async tasks.
+ * In this example, we are launching space rockets and deploying lunar rovers.
+ *
+ * <p>The application demonstrates the async method invocation pattern. The key parts of the
+ * pattern are <code>AsyncResult</code> which is an intermediate container for an asynchronously
+ * evaluated value, <code>AsyncCallback</code> which can be provided to be executed on task
+ * completion and <code>AsyncExecutor</code> that manages the execution of the async tasks.
 *
 * <p>The main method shows example flow of async invocations. The main thread starts multiple
 * tasks with variable durations and then continues its own work. When the main thread has done it's
@ -68,13 +70,14 @@ public class App {
    final var asyncResult1 = executor.startProcess(lazyval(10, 500));
    final var asyncResult2 = executor.startProcess(lazyval("test", 300));
    final var asyncResult3 = executor.startProcess(lazyval(50L, 700));
-    final var asyncResult4 = executor.startProcess(lazyval(20, 400), callback("Callback result 4"));
+    final var asyncResult4 = executor.startProcess(lazyval(20, 400),
+        callback("Deploying lunar rover"));
    final var asyncResult5 =
-        executor.startProcess(lazyval("callback", 600), callback("Callback result 5"));
+        executor.startProcess(lazyval("callback", 600), callback("Deploying lunar rover"));

    // emulate processing in the current thread while async tasks are running in their own threads
-    Thread.sleep(350); // Oh boy I'm working hard here
-    log("Some hard work done");
+    Thread.sleep(350); // Oh boy, we are working hard here
+    log("Mission command is sipping coffee");

    // wait for completion of the tasks
    final var result1 = executor.endProcess(asyncResult1);
@ -84,9 +87,9 @@ public class App {
    asyncResult5.await();

    // log the results of the tasks, callbacks log immediately when complete
-    log("Result 1: " + result1);
-    log("Result 2: " + result2);
-    log("Result 3: " + result3);
+    log("Space rocket <" + result1 + "> launch complete");
+    log("Space rocket <" + result2 + "> launch complete");
+    log("Space rocket <" + result3 + "> launch complete");
  }

  /**
@ -99,7 +102,7 @@ public class App {
  private static <T> Callable<T> lazyval(T value, long delayMillis) {
    return () -> {
      Thread.sleep(delayMillis);
-      log("Task completed with: " + value);
+      log("Space rocket <" + value + "> launched successfully");
      return value;
    };
  }
@ -115,7 +118,7 @@ public class App {
      if (ex.isPresent()) {
        log(name + " failed: " + ex.map(Exception::getMessage).orElse(""));
      } else {
-        log(name + ": " + value);
+        log(name + " <" + value + ">");
      }
    };
  }
--- a/balking/README.md
+++ b/balking/README.md
@ -4,24 +4,137 @@ title: Balking
 folder: balking
 permalink: /patterns/balking/
 categories: Concurrency
+language: en
 tags:
 - Decoupling
 ---

 ## Intent
-Balking Pattern is used to prevent an object from executing certain code if it is an
-incomplete or inappropriate state
+
+Balking Pattern is used to prevent an object from executing a certain code if it is in an incomplete 
+or inappropriate state.
+
+## Explanation
+
+Real world example
+
+> There's a start-button in a washing machine to initiate the laundry washing. When the washing 
+> machine is inactive the button works as expected, but if it's already washing the button does
+> nothing.
+
+In plain words
+
+> Using the balking pattern, a certain code executes only if the object is in particular state.
+
+Wikipedia says
+
+> The balking pattern is a software design pattern that only executes an action on an object when 
+> the object is in a particular state. For example, if an object reads ZIP files and a calling 
+> method invokes a get method on the object when the ZIP file is not open, the object would "balk" 
+> at the request.
+
+**Programmatic Example**
+
+In this example implementation, `WashingMachine` is an object that has two states in which it can 
+be: ENABLED and WASHING. If the machine is ENABLED, the state changes to WASHING using a thread-safe
+method. On the other hand, if it already has been washing and any other thread executes `wash()` 
+it won't do that and returns without doing anything.
+
+Here are the relevant parts of the `WashingMachine` class.
+
+```java
+@Slf4j
+public class WashingMachine {
+
+  private final DelayProvider delayProvider;
+  private WashingMachineState washingMachineState;
+
+  public WashingMachine(DelayProvider delayProvider) {
+    this.delayProvider = delayProvider;
+    this.washingMachineState = WashingMachineState.ENABLED;
+  }
+
+  public WashingMachineState getWashingMachineState() {
+    return washingMachineState;
+  }
+
+  public void wash() {
+    synchronized (this) {
+      var machineState = getWashingMachineState();
+      LOGGER.info("{}: Actual machine state: {}", Thread.currentThread().getName(), machineState);
+      if (this.washingMachineState == WashingMachineState.WASHING) {
+        LOGGER.error("Cannot wash if the machine has been already washing!");
+        return;
+      }
+      this.washingMachineState = WashingMachineState.WASHING;
+    }
+    LOGGER.info("{}: Doing the washing", Thread.currentThread().getName());
+    this.delayProvider.executeAfterDelay(50, TimeUnit.MILLISECONDS, this::endOfWashing);
+  }
+
+  public synchronized void endOfWashing() {
+    washingMachineState = WashingMachineState.ENABLED;
+    LOGGER.info("{}: Washing completed.", Thread.currentThread().getId());
+  }
+}
+```
+
+Here's the simple `DelayProvider` interface used by the `WashingMachine`.
+
+```java
+public interface DelayProvider {
+  void executeAfterDelay(long interval, TimeUnit timeUnit, Runnable task);
+}
+```
+
+Now we introduce the application using the `WashingMachine`.
+
+```java
+  public static void main(String... args) {
+    final var washingMachine = new WashingMachine();
+    var executorService = Executors.newFixedThreadPool(3);
+    for (int i = 0; i < 3; i++) {
+      executorService.execute(washingMachine::wash);
+    }
+    executorService.shutdown();
+    try {
+      executorService.awaitTermination(10, TimeUnit.SECONDS);
+    } catch (InterruptedException ie) {
+      LOGGER.error("ERROR: Waiting on executor service shutdown!");
+      Thread.currentThread().interrupt();
+    }
+  }
+```
+
+Here is the console output of the program.
+
+```
+14:02:52.268 [pool-1-thread-2] INFO com.iluwatar.balking.WashingMachine - pool-1-thread-2: Actual machine state: ENABLED
+14:02:52.272 [pool-1-thread-2] INFO com.iluwatar.balking.WashingMachine - pool-1-thread-2: Doing the washing
+14:02:52.272 [pool-1-thread-3] INFO com.iluwatar.balking.WashingMachine - pool-1-thread-3: Actual machine state: WASHING
+14:02:52.273 [pool-1-thread-3] ERROR com.iluwatar.balking.WashingMachine - Cannot wash if the machine has been already washing!
+14:02:52.273 [pool-1-thread-1] INFO com.iluwatar.balking.WashingMachine - pool-1-thread-1: Actual machine state: WASHING
+14:02:52.273 [pool-1-thread-1] ERROR com.iluwatar.balking.WashingMachine - Cannot wash if the machine has been already washing!
+14:02:52.324 [pool-1-thread-2] INFO com.iluwatar.balking.WashingMachine - 14: Washing completed.
+```

 ## Class diagram
+
 ![alt text](./etc/balking.png "Balking")

 ## Applicability
+
 Use the Balking pattern when

-* you want to invoke an action on an object only when it is in a particular state
-* objects are generally only in a state that is prone to balking temporarily
-but for an unknown amount of time
+* You want to invoke an action on an object only when it is in a particular state
+* Objects are generally only in a state that is prone to balking temporarily but for an unknown 
+  amount of time

 ## Related patterns
-* Guarded Suspension Pattern
-* Double Checked Locking Pattern
+
+* [Guarded Suspension Pattern](https://java-design-patterns.com/patterns/guarded-suspension/)
+* [Double Checked Locking Pattern](https://java-design-patterns.com/patterns/double-checked-locking/)
+
+## Credits
+
+* [Patterns in Java: A Catalog of Reusable Design Patterns Illustrated with UML, 2nd Edition, Volume 1](https://www.amazon.com/gp/product/0471227293/ref=as_li_qf_asin_il_tl?ie=UTF8&tag=javadesignpat-20&creative=9325&linkCode=as2&creativeASIN=0471227293&linkId=0e39a59ffaab93fb476036fecb637b99)
--- a/balking/pom.xml
+++ b/balking/pom.xml
@ -29,7 +29,7 @@
 	<parent>
 		<artifactId>java-design-patterns</artifactId>
 		<groupId>com.iluwatar</groupId>
-		<version>1.24.0-SNAPSHOT</version>
+		<version>1.25.0-SNAPSHOT</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>

--- a/balking/src/main/java/com/iluwatar/balking/App.java
+++ b/balking/src/main/java/com/iluwatar/balking/App.java
@ -32,11 +32,11 @@ import lombok.extern.slf4j.Slf4j;
 * then the method will return without doing anything. Objects that use this pattern are generally
 * only in a state that is prone to balking temporarily but for an unknown amount of time
 *
- * <p>In this example implementation WashingMachine is an object that has two states in which it
- * can be: ENABLED and WASHING. If the machine is ENABLED the state is changed into WASHING that any
- * other thread can't invoke this action on this and then do the job. On the other hand if it have
- * been already washing and any other thread execute wash() it can't do that once again and returns
- * doing nothing.
+ * <p>In this example implementation, {@link WashingMachine} is an object that has two states in
+ * which it can be: ENABLED and WASHING. If the machine is ENABLED, the state changes to WASHING
+ * using a thread-safe method. On the other hand, if it already has been washing and any other
+ * thread executes {@link WashingMachine#wash()} it won't do that and returns without doing
+ * anything.
 */
@Slf4j
 public class App {
@ -54,11 +54,12 @@ public class App {
    }
    executorService.shutdown();
    try {
-      executorService.awaitTermination(10, TimeUnit.SECONDS);
+      if (!executorService.awaitTermination(10, TimeUnit.SECONDS)) {
+        executorService.shutdownNow();
+      }
    } catch (InterruptedException ie) {
      LOGGER.error("ERROR: Waiting on executor service shutdown!");
      Thread.currentThread().interrupt();
    }
  }
-
 }
--- a/bridge/README.md
+++ b/bridge/README.md
@ -4,6 +4,7 @@ title: Bridge
 folder: bridge
 permalink: /patterns/bridge/
 categories: Structural
+language: en
 tags:
 - Gang of Four
 ---
--- a/bridge/pom.xml
+++ b/bridge/pom.xml
@ -31,7 +31,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.24.0-SNAPSHOT</version>
+		<version>1.25.0-SNAPSHOT</version>
 	</parent>
 	<artifactId>bridge</artifactId>
 	<dependencies>
--- a/bridge/src/main/java/com/iluwatar/bridge/Hammer.java
+++ b/bridge/src/main/java/com/iluwatar/bridge/Hammer.java
@ -43,7 +43,7 @@ public class Hammer implements Weapon {

  @Override
  public void swing() {
-    LOGGER.info("The hammer is swinged.");
+    LOGGER.info("The hammer is swung.");
    enchantment.apply();
  }

--- a/bridge/src/main/java/com/iluwatar/bridge/Sword.java
+++ b/bridge/src/main/java/com/iluwatar/bridge/Sword.java
@ -43,7 +43,7 @@ public class Sword implements Weapon {

  @Override
  public void swing() {
-    LOGGER.info("The sword is swinged.");
+    LOGGER.info("The sword is swung.");
    enchantment.apply();
  }

--- a/builder/README.md
+++ b/builder/README.md
@ -4,6 +4,7 @@ title: Builder
 folder: builder
 permalink: /patterns/builder/
 categories: Creational
+language: en
 tags:
 - Gang of Four
 ---
--- a/builder/pom.xml
+++ b/builder/pom.xml
@ -31,7 +31,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.24.0-SNAPSHOT</version>
+		<version>1.25.0-SNAPSHOT</version>
 	</parent>
 	<artifactId>builder</artifactId>
 	<dependencies>
--- a/business-delegate/README.md
+++ b/business-delegate/README.md
@ -4,26 +4,162 @@ title: Business Delegate
 folder: business-delegate
 permalink: /patterns/business-delegate/
 categories: Structural
+language: en
 tags:
 - Decoupling
 ---

 ## Intent
+
 The Business Delegate pattern adds an abstraction layer between
 presentation and business tiers. By using the pattern we gain loose coupling
 between the tiers and encapsulate knowledge about how to locate, connect to,
 and interact with the business objects that make up the application.

+## Explanation
+
+Real world example
+
+> A mobile phone application promises to stream any movie in existence to your phone. It captures
+> the user's search string and passes this on to the business delegate. The business delegate
+> selects the most suitable video streaming service and plays the video from there.
+
+In Plain Words
+
+> Business delegate adds an abstraction layer between the presentation and business tiers.
+
+Wikipedia says
+
+> Business delegate is a Java EE design pattern. This pattern is directing to reduce the coupling 
+> in between business services and the connected presentation tier, and to hide the implementation 
+> details of services (including lookup and accessibility of EJB architecture). Business delegates 
+> acts as an adaptor to invoke business objects from the presentation tier.
+
+**Programmatic Example**
+
+First, we have an abstraction for video streaming services and a couple of implementations.
+
+```java
+public interface VideoStreamingService {
+  void doProcessing();
+}
+
+@Slf4j
+public class NetflixService implements VideoStreamingService {
+  @Override
+  public void doProcessing() {
+    LOGGER.info("NetflixService is now processing");
+  }
+}
+
+@Slf4j
+public class YouTubeService implements VideoStreamingService {
+  @Override
+  public void doProcessing() {
+    LOGGER.info("YouTubeService is now processing");
+  }
+}
+```
+
+Then we have a lookup service that decides which video streaming service is used.
+
+```java
+@Setter
+public class BusinessLookup {
+
+  private NetflixService netflixService;
+  private YouTubeService youTubeService;
+
+  public VideoStreamingService getBusinessService(String movie) {
+    if (movie.toLowerCase(Locale.ROOT).contains("die hard")) {
+      return netflixService;
+    } else {
+      return youTubeService;
+    }
+  }
+}
+```
+
+The business delegate uses a business lookup to route movie playback requests to a suitable
+video streaming service.
+
+```java
+@Setter
+public class BusinessDelegate {
+
+  private BusinessLookup lookupService;
+
+  public void playbackMovie(String movie) {
+    VideoStreamingService videoStreamingService = lookupService.getBusinessService(movie);
+    videoStreamingService.doProcessing();
+  }
+}
+```
+
+The mobile client utilizes business delegate to call the business tier.
+
+```java
+public class MobileClient {
+
+  private final BusinessDelegate businessDelegate;
+
+  public MobileClient(BusinessDelegate businessDelegate) {
+    this.businessDelegate = businessDelegate;
+  }
+
+  public void playbackMovie(String movie) {
+    businessDelegate.playbackMovie(movie);
+  }
+}
+```
+
+Finally, we can show the full example in action.
+
+```java
+  public static void main(String[] args) {
+
+    // prepare the objects
+    var businessDelegate = new BusinessDelegate();
+    var businessLookup = new BusinessLookup();
+    businessLookup.setNetflixService(new NetflixService());
+    businessLookup.setYouTubeService(new YouTubeService());
+    businessDelegate.setLookupService(businessLookup);
+
+    // create the client and use the business delegate
+    var client = new MobileClient(businessDelegate);
+    client.playbackMovie("Die Hard 2");
+    client.playbackMovie("Maradona: The Greatest Ever");
+  }
+```
+
+Here is the console output.
+
+```
+21:15:33.790 [main] INFO com.iluwatar.business.delegate.NetflixService - NetflixService is now processing
+21:15:33.794 [main] INFO com.iluwatar.business.delegate.YouTubeService - YouTubeService is now processing
+```
+
 ## Class diagram
-![alt text](./etc/business-delegate.png "Business Delegate")
+
+![alt text](./etc/business-delegate.urm.png "Business Delegate")
+
+## Related patterns
+
+* [Service locator pattern](https://java-design-patterns.com/patterns/service-locator/)

 ## Applicability
+
 Use the Business Delegate pattern when

-* you want loose coupling between presentation and business tiers
-* you want to orchestrate calls to multiple business services
-* you want to encapsulate service lookups and service calls
+* You want loose coupling between presentation and business tiers
+* You want to orchestrate calls to multiple business services
+* You want to encapsulate service lookups and service calls
+
+## Tutorials
+
+* [Business Delegate Pattern at TutorialsPoint](https://www.tutorialspoint.com/design_pattern/business_delegate_pattern.htm)

 ## Credits

 * [J2EE Design Patterns](https://www.amazon.com/gp/product/0596004273/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=0596004273&linkCode=as2&tag=javadesignpat-20&linkId=48d37c67fb3d845b802fa9b619ad8f31)
+* [Core J2EE Patterns: Best Practices and Design Strategies](https://www.amazon.com/gp/product/0130648841/ref=as_li_qf_asin_il_tl?ie=UTF8&tag=javadesignpat-20&creative=9325&linkCode=as2&creativeASIN=0130648841&linkId=a0100de2b28c71ede8db1757fb2b5947)
--- a/business-delegate/etc/business-delegate.png
+++ b/business-delegate/etc/business-delegate.png
--- a/business-delegate/etc/business-delegate.ucls
+++ b/business-delegate/etc/business-delegate.ucls
@ -1,136 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<class-diagram version="1.1.8" icons="true" automaticImage="PNG" always-add-relationships="false" generalizations="true" 
-  realizations="true" associations="true" dependencies="false" nesting-relationships="true">  
-  <class id="1" language="java" name="com.iluwatar.business.delegate.BusinessDelegate" project="business-delegate" 
-    file="/business-delegate/src/main/java/com/iluwatar/business/delegate/BusinessDelegate.java" binary="false" 
-    corner="BOTTOM_RIGHT">    
-    <position height="-1" width="-1" x="272" y="219"/>    
-    <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" 
-      sort-features="false" accessors="true" visibility="true">      
-      <attributes public="true" package="true" protected="true" private="true" static="true"/>      
-      <operations public="true" package="true" protected="true" private="true" static="true"/>    
-    </display>  
-  </class>  
-  <class id="2" language="java" name="com.iluwatar.business.delegate.Client" project="business-delegate" 
-    file="/business-delegate/src/main/java/com/iluwatar/business/delegate/Client.java" binary="false" 
-    corner="BOTTOM_RIGHT">    
-    <position height="-1" width="-1" x="272" y="64"/>    
-    <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" 
-      sort-features="false" accessors="true" visibility="true">      
-      <attributes public="true" package="true" protected="true" private="true" static="true"/>      
-      <operations public="true" package="true" protected="true" private="true" static="true"/>    
-    </display>  
-  </class>  
-  <enumeration id="3" language="java" name="com.iluwatar.business.delegate.ServiceType" project="business-delegate" 
-    file="/business-delegate/src/main/java/com/iluwatar/business/delegate/ServiceType.java" binary="false" 
-    corner="BOTTOM_RIGHT">    
-    <position height="-1" width="-1" x="89" y="383"/>    
-    <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" 
-      sort-features="false" accessors="true" visibility="true">      
-      <attributes public="true" package="true" protected="true" private="true" static="true"/>      
-      <operations public="true" package="true" protected="true" private="true" static="true"/>    
-    </display>  
-  </enumeration>  
-  <interface id="4" language="java" name="com.iluwatar.business.delegate.BusinessService" project="business-delegate" 
-    file="/business-delegate/src/main/java/com/iluwatar/business/delegate/BusinessService.java" binary="false" 
-    corner="BOTTOM_RIGHT">    
-    <position height="-1" width="-1" x="630" y="365"/>    
-    <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" 
-      sort-features="false" accessors="true" visibility="true">      
-      <attributes public="true" package="true" protected="true" private="true" static="true"/>      
-      <operations public="true" package="true" protected="true" private="true" static="true"/>    
-    </display>  
-  </interface>  
-  <class id="5" language="java" name="com.iluwatar.business.delegate.JmsService" project="business-delegate" 
-    file="/business-delegate/src/main/java/com/iluwatar/business/delegate/JmsService.java" binary="false" 
-    corner="BOTTOM_RIGHT">    
-    <position height="-1" width="-1" x="489" y="210"/>    
-    <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" 
-      sort-features="false" accessors="true" visibility="true">      
-      <attributes public="true" package="true" protected="true" private="true" static="true"/>      
-      <operations public="true" package="true" protected="true" private="true" static="true"/>    
-    </display>  
-  </class>  
-  <class id="6" language="java" name="com.iluwatar.business.delegate.BusinessLookup" project="business-delegate" 
-    file="/business-delegate/src/main/java/com/iluwatar/business/delegate/BusinessLookup.java" binary="false" 
-    corner="BOTTOM_RIGHT">    
-    <position height="-1" width="-1" x="360" y="399"/>    
-    <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" 
-      sort-features="false" accessors="true" visibility="true">      
-      <attributes public="true" package="true" protected="true" private="true" static="true"/>      
-      <operations public="true" package="true" protected="true" private="true" static="true"/>    
-    </display>  
-  </class>  
-  <class id="7" language="java" name="com.iluwatar.business.delegate.EjbService" project="business-delegate" 
-    file="/business-delegate/src/main/java/com/iluwatar/business/delegate/EjbService.java" binary="false" 
-    corner="BOTTOM_RIGHT">    
-    <position height="-1" width="-1" x="668" y="210"/>    
-    <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" 
-      sort-features="false" accessors="true" visibility="true">      
-      <attributes public="true" package="true" protected="true" private="true" static="true"/>      
-      <operations public="true" package="true" protected="true" private="true" static="true"/>    
-    </display>  
-  </class>  
-  <realization id="8">    
-    <end type="SOURCE" refId="7"/>    
-    <end type="TARGET" refId="4"/>  
-  </realization>  
-  <association id="9">    
-    <end type="SOURCE" refId="1" navigable="false">      
-      <attribute id="10" name="lookupService">        
-        <position height="0" width="0" x="0" y="0"/>      
-      </attribute>      
-      <multiplicity id="11" minimum="0" maximum="1">        
-        <position height="0" width="0" x="0" y="0"/>      
-      </multiplicity>    
-    </end>    
-    <end type="TARGET" refId="6" navigable="true"/>    
-    <display labels="true" multiplicity="true"/>  
-  </association>  
-  <association id="12">    
-    <end type="SOURCE" refId="1" navigable="false">      
-      <attribute id="13" name="serviceType">        
-        <position height="0" width="0" x="0" y="0"/>      
-      </attribute>      
-      <multiplicity id="14" minimum="0" maximum="1">        
-        <position height="0" width="0" x="0" y="0"/>      
-      </multiplicity>    
-    </end>    
-    <end type="TARGET" refId="3" navigable="true"/>    
-    <display labels="true" multiplicity="true"/>  
-  </association>  
-  <realization id="15">    
-    <end type="SOURCE" refId="5"/>    
-    <end type="TARGET" refId="4"/>  
-  </realization>  
-  <association id="16">    
-    <end type="SOURCE" refId="2" navigable="false">      
-      <attribute id="17" name="businessDelegate">        
-        <position height="0" width="0" x="0" y="0"/>      
-      </attribute>      
-      <multiplicity id="18" minimum="0" maximum="1">        
-        <position height="0" width="0" x="0" y="0"/>      
-      </multiplicity>    
-    </end>    
-    <end type="TARGET" refId="1" navigable="true"/>    
-    <display labels="true" multiplicity="true"/>  
-  </association>  
-  <association id="19">    
-    <end type="SOURCE" refId="1" navigable="false">      
-      <attribute id="20" name="businessService">        
-        <position height="0" width="0" x="0" y="0"/>      
-      </attribute>      
-      <multiplicity id="21" minimum="0" maximum="1">        
-        <position height="0" width="0" x="0" y="0"/>      
-      </multiplicity>    
-    </end>    
-    <end type="TARGET" refId="4" navigable="true"/>    
-    <display labels="true" multiplicity="true"/>  
-  </association>  
-  <classifier-display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" 
-    sort-features="false" accessors="true" visibility="true">    
-    <attributes public="true" package="true" protected="true" private="true" static="true"/>    
-    <operations public="true" package="true" protected="true" private="true" static="true"/>  
-  </classifier-display>  
-  <association-display labels="true" multiplicity="true"/>
-</class-diagram>
--- a/business-delegate/etc/business-delegate.urm.png
+++ b/business-delegate/etc/business-delegate.urm.png
--- a/business-delegate/etc/business-delegate.urm.puml
+++ b/business-delegate/etc/business-delegate.urm.puml
@ -5,53 +5,42 @@ package com.iluwatar.business.delegate {
    + main(args : String[]) {static}
  }
  class BusinessDelegate {
-    - businessService : BusinessService
    - lookupService : BusinessLookup
-    - serviceType : ServiceType
    + BusinessDelegate()
-    + doTask()
-    + setLookupService(businessLookup : BusinessLookup)
-    + setServiceType(serviceType : ServiceType)
+    + playbackMovie(movie : String)
+    + setLookupService(lookupService : BusinessLookup)
  }
  class BusinessLookup {
-    - ejbService : EjbService
-    - jmsService : JmsService
+    - netflixService : NetflixService
+    - youTubeService : YouTubeService
    + BusinessLookup()
-    + getBusinessService(serviceType : ServiceType) : BusinessService
-    + setEjbService(ejbService : EjbService)
-    + setJmsService(jmsService : JmsService)
+    + getBusinessService(movie : String) : VideoStreamingService
+    + setNetflixService(netflixService : NetflixService)
+    + setYouTubeService(youTubeService : YouTubeService)
  }
-  interface BusinessService {
+  class MobileClient {
+    - businessDelegate : BusinessDelegate
+    + MobileClient(businessDelegate : BusinessDelegate)
+    + playbackMovie(movie : String)
+  }
+  class NetflixService {
+    - LOGGER : Logger {static}
+    + NetflixService()
+    + doProcessing()
+  }
+  interface VideoStreamingService {
    + doProcessing() {abstract}
  }
-  class Client {
-    - businessDelegate : BusinessDelegate
-    + Client(businessDelegate : BusinessDelegate)
-    + doTask()
-  }
-  class EjbService {
+  class YouTubeService {
    - LOGGER : Logger {static}
-    + EjbService()
+    + YouTubeService()
    + doProcessing()
  }
-  class JmsService {
-    - LOGGER : Logger {static}
-    + JmsService()
-    + doProcessing()
-  }
-  enum ServiceType {
-    + EJB {static}
-    + JMS {static}
-    + valueOf(name : String) : ServiceType {static}
-    + values() : ServiceType[] {static}
-  }
 }
-BusinessLookup -->  "-ejbService" EjbService
-BusinessDelegate -->  "-serviceType" ServiceType
-Client -->  "-businessDelegate" BusinessDelegate
-BusinessDelegate -->  "-businessService" BusinessService
+BusinessLookup -->  "-netflixService" NetflixService
+BusinessLookup -->  "-youTubeService" YouTubeService
+MobileClient -->  "-businessDelegate" BusinessDelegate
 BusinessDelegate -->  "-lookupService" BusinessLookup
-BusinessLookup -->  "-jmsService" JmsService
-EjbService ..|> BusinessService 
-JmsService ..|> BusinessService 
+NetflixService ..|> VideoStreamingService 
+YouTubeService ..|> VideoStreamingService 
@enduml
--- a/business-delegate/pom.xml
+++ b/business-delegate/pom.xml
@ -31,7 +31,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.24.0-SNAPSHOT</version>
+		<version>1.25.0-SNAPSHOT</version>
 	</parent>
 	<artifactId>business-delegate</artifactId>
 	<dependencies>
--- a/business-delegate/src/main/java/com/iluwatar/business/delegate/App.java
+++ b/business-delegate/src/main/java/com/iluwatar/business/delegate/App.java
@ -33,9 +33,9 @@ package com.iluwatar.business.delegate;
 * retrieved through service lookups. The Business Delegate itself may contain business logic too
 * potentially tying together multiple service calls, exception handling, retrying etc.
 *
- * <p>In this example the client ({@link Client}) utilizes a business delegate (
- * {@link BusinessDelegate}) to execute a task. The Business Delegate then selects the appropriate
- * service and makes the service call.
+ * <p>In this example the client ({@link MobileClient}) utilizes a business delegate (
+ * {@link BusinessDelegate}) to search for movies in video streaming services. The Business Delegate
+ * then selects the appropriate service and makes the service call.
 */
 public class App {

@ -46,18 +46,16 @@ public class App {
   */
  public static void main(String[] args) {

+    // prepare the objects
    var businessDelegate = new BusinessDelegate();
    var businessLookup = new BusinessLookup();
-    businessLookup.setEjbService(new EjbService());
-    businessLookup.setJmsService(new JmsService());
-
+    businessLookup.setNetflixService(new NetflixService());
+    businessLookup.setYouTubeService(new YouTubeService());
    businessDelegate.setLookupService(businessLookup);
-    businessDelegate.setServiceType(ServiceType.EJB);

-    var client = new Client(businessDelegate);
-    client.doTask();
-
-    businessDelegate.setServiceType(ServiceType.JMS);
-    client.doTask();
+    // create the client and use the business delegate
+    var client = new MobileClient(businessDelegate);
+    client.playbackMovie("Die Hard 2");
+    client.playbackMovie("Maradona: The Greatest Ever");
  }
 }
--- a/business-delegate/src/main/java/com/iluwatar/business/delegate/BusinessDelegate.java
+++ b/business-delegate/src/main/java/com/iluwatar/business/delegate/BusinessDelegate.java
@ -23,24 +23,18 @@

 package com.iluwatar.business.delegate;

+import lombok.Setter;
+
 /**
 * BusinessDelegate separates the presentation and business tiers.
 */
+@Setter
 public class BusinessDelegate {

  private BusinessLookup lookupService;
-  private ServiceType serviceType;

-  public void setLookupService(BusinessLookup businessLookup) {
-    this.lookupService = businessLookup;
-  }
-
-  public void setServiceType(ServiceType serviceType) {
-    this.serviceType = serviceType;
-  }
-
-  public void doTask() {
-    BusinessService businessService = lookupService.getBusinessService(serviceType);
-    businessService.doProcessing();
+  public void playbackMovie(String movie) {
+    VideoStreamingService videoStreamingService = lookupService.getBusinessService(movie);
+    videoStreamingService.doProcessing();
  }
 }
--- a/business-delegate/src/main/java/com/iluwatar/business/delegate/BusinessLookup.java
+++ b/business-delegate/src/main/java/com/iluwatar/business/delegate/BusinessLookup.java
@ -23,6 +23,7 @@

 package com.iluwatar.business.delegate;

+import java.util.Locale;
 import lombok.Setter;

 /**
@ -31,21 +32,21 @@ import lombok.Setter;
@Setter
 public class BusinessLookup {

-  private EjbService ejbService;
+  private NetflixService netflixService;

-  private JmsService jmsService;
+  private YouTubeService youTubeService;

  /**
-   * Gets service instance based on service type.
+   * Gets service instance based on given movie search string.
   *
-   * @param serviceType Type of service instance to be returned.
+   * @param movie Search string for the movie.
   * @return Service instance.
   */
-  public BusinessService getBusinessService(ServiceType serviceType) {
-    if (serviceType.equals(ServiceType.EJB)) {
-      return ejbService;
+  public VideoStreamingService getBusinessService(String movie) {
+    if (movie.toLowerCase(Locale.ROOT).contains("die hard")) {
+      return netflixService;
    } else {
-      return jmsService;
+      return youTubeService;
    }
  }
 }
--- a/business-delegate/src/main/java/com/iluwatar/business/delegate/MobileClient.java
+++ b/business-delegate/src/main/java/com/iluwatar/business/delegate/MobileClient.java
@ -24,17 +24,17 @@
 package com.iluwatar.business.delegate;

 /**
- * Client utilizes BusinessDelegate to call the business tier.
+ * MobileClient utilizes BusinessDelegate to call the business tier.
 */
-public class Client {
+public class MobileClient {

  private final BusinessDelegate businessDelegate;

-  public Client(BusinessDelegate businessDelegate) {
+  public MobileClient(BusinessDelegate businessDelegate) {
    this.businessDelegate = businessDelegate;
  }

-  public void doTask() {
-    businessDelegate.doTask();
+  public void playbackMovie(String movie) {
+    businessDelegate.playbackMovie(movie);
  }
 }
--- a/business-delegate/src/main/java/com/iluwatar/business/delegate/NetflixService.java
+++ b/business-delegate/src/main/java/com/iluwatar/business/delegate/NetflixService.java
@ -26,13 +26,13 @@ package com.iluwatar.business.delegate;
 import lombok.extern.slf4j.Slf4j;

 /**
- * Service EJB implementation.
+ * NetflixService implementation.
 */
@Slf4j
-public class EjbService implements BusinessService {
+public class NetflixService implements VideoStreamingService {

  @Override
  public void doProcessing() {
-    LOGGER.info("EjbService is now processing");
+    LOGGER.info("NetflixService is now processing");
  }
 }
--- a/business-delegate/src/main/java/com/iluwatar/business/delegate/VideoStreamingService.java
+++ b/business-delegate/src/main/java/com/iluwatar/business/delegate/VideoStreamingService.java
@ -24,9 +24,9 @@
 package com.iluwatar.business.delegate;

 /**
- * Interface for service implementations.
+ * Interface for video streaming service implementations.
 */
-public interface BusinessService {
+public interface VideoStreamingService {

  void doProcessing();
 }
--- a/business-delegate/src/main/java/com/iluwatar/business/delegate/YouTubeService.java
+++ b/business-delegate/src/main/java/com/iluwatar/business/delegate/YouTubeService.java
@ -26,13 +26,13 @@ package com.iluwatar.business.delegate;
 import lombok.extern.slf4j.Slf4j;

 /**
- * Service JMS implementation.
+ * YouTubeService implementation.
 */
@Slf4j
-public class JmsService implements BusinessService {
+public class YouTubeService implements VideoStreamingService {

  @Override
  public void doProcessing() {
-    LOGGER.info("JmsService is now processing");
+    LOGGER.info("YouTubeService is now processing");
  }
 }
--- a/business-delegate/src/test/java/com/iluwatar/business/delegate/BusinessDelegateTest.java
+++ b/business-delegate/src/test/java/com/iluwatar/business/delegate/BusinessDelegateTest.java
@ -26,25 +26,20 @@ package com.iluwatar.business.delegate;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;

+
+import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;

 /**
- * The Business Delegate pattern adds an abstraction layer between the presentation and business
- * tiers. By using the pattern we gain loose coupling between the tiers. The Business Delegate
- * encapsulates knowledge about how to locate, connect to, and interact with the business objects
- * that make up the application.
- *
- * <p>Some of the services the Business Delegate uses are instantiated directly, and some can be
- * retrieved through service lookups. The Business Delegate itself may contain business logic too
- * potentially tying together multiple service calls, exception handling, retrying etc.
+ * Tests for the {@link BusinessDelegate}
 */
 class BusinessDelegateTest {

-  private EjbService ejbService;
+  private NetflixService netflixService;

-  private JmsService jmsService;
+  private YouTubeService youTubeService;

  private BusinessDelegate businessDelegate;

@ -54,19 +49,19 @@ class BusinessDelegateTest {
   */
  @BeforeEach
  public void setup() {
-    ejbService = spy(new EjbService());
-    jmsService = spy(new JmsService());
+    netflixService = spy(new NetflixService());
+    youTubeService = spy(new YouTubeService());

    BusinessLookup businessLookup = spy(new BusinessLookup());
-    businessLookup.setEjbService(ejbService);
-    businessLookup.setJmsService(jmsService);
+    businessLookup.setNetflixService(netflixService);
+    businessLookup.setYouTubeService(youTubeService);

    businessDelegate = spy(new BusinessDelegate());
    businessDelegate.setLookupService(businessLookup);
  }

  /**
-   * In this example the client ({@link Client}) utilizes a business delegate (
+   * In this example the client ({@link MobileClient}) utilizes a business delegate (
   * {@link BusinessDelegate}) to execute a task. The Business Delegate then selects the appropriate
   * service and makes the service call.
   */
@ -74,26 +69,20 @@ class BusinessDelegateTest {
  void testBusinessDelegate() {

    // setup a client object
-    var client = new Client(businessDelegate);
-
-    // set the service type
-    businessDelegate.setServiceType(ServiceType.EJB);
+    var client = new MobileClient(businessDelegate);

    // action
-    client.doTask();
+    client.playbackMovie("Die hard");

-    // verifying that the businessDelegate was used by client during doTask() method.
-    verify(businessDelegate).doTask();
-    verify(ejbService).doProcessing();
-
-    // set the service type
-    businessDelegate.setServiceType(ServiceType.JMS);
+    // verifying that the businessDelegate was used by client during playbackMovie() method.
+    verify(businessDelegate).playbackMovie(anyString());
+    verify(netflixService).doProcessing();

    // action
-    client.doTask();
+    client.playbackMovie("Maradona");

    // verifying that the businessDelegate was used by client during doTask() method.
-    verify(businessDelegate, times(2)).doTask();
-    verify(jmsService).doProcessing();
+    verify(businessDelegate, times(2)).playbackMovie(anyString());
+    verify(youTubeService).doProcessing();
  }
 }
--- a/bytecode/README.md
+++ b/bytecode/README.md
@ -4,23 +4,240 @@ title: Bytecode
 folder: bytecode
 permalink: /patterns/bytecode/
 categories: Behavioral
+language: en
 tags:
 - Game programming
 ---

 ## Intent
-Allows to encode behaviour as instructions for virtual machine.
+
+Allows encoding behavior as instructions for a virtual machine.
+
+## Explanation
+
+Real world example
+
+> A team is working on a new game where wizards battle against each other. The wizard behavior 
+> needs to be carefully adjusted and iterated hundreds of times through playtesting. It's not 
+> optimal to ask the programmer to make changes each time the game designer wants to vary the 
+> behavior, so the wizard behavior is implemented as a data-driven virtual machine.
+
+In plain words
+
+> Bytecode pattern enables behavior driven by data instead of code.
+
+[Gameprogrammingpatterns.com](https://gameprogrammingpatterns.com/bytecode.html) documentation 
+states:
+
+> An instruction set defines the low-level operations that can be performed. A series of 
+> instructions is encoded as a sequence of bytes. A virtual machine executes these instructions one 
+> at a time, using a stack for intermediate values. By combining instructions, complex high-level 
+> behavior can be defined.
+
+**Programmatic Example**
+
+One of the most important game objects is the `Wizard` class.
+
+```java
+@AllArgsConstructor
+@Setter
+@Getter
+@Slf4j
+public class Wizard {
+
+  private int health;
+  private int agility;
+  private int wisdom;
+  private int numberOfPlayedSounds;
+  private int numberOfSpawnedParticles;
+
+  public void playSound() {
+    LOGGER.info("Playing sound");
+    numberOfPlayedSounds++;
+  }
+
+  public void spawnParticles() {
+    LOGGER.info("Spawning particles");
+    numberOfSpawnedParticles++;
+  }
+}
+```
+
+Next, we show the available instructions for our virtual machine. Each of the instructions has its 
+own semantics on how it operates with the stack data. For example, the ADD instruction takes the top
+two items from the stack, adds them together and pushes the result to the stack.
+
+```java
+@AllArgsConstructor
+@Getter
+public enum Instruction {
+
+  LITERAL(1),         // e.g. "LITERAL 0", push 0 to stack
+  SET_HEALTH(2),      // e.g. "SET_HEALTH", pop health and wizard number, call set health
+  SET_WISDOM(3),      // e.g. "SET_WISDOM", pop wisdom and wizard number, call set wisdom
+  SET_AGILITY(4),     // e.g. "SET_AGILITY", pop agility and wizard number, call set agility
+  PLAY_SOUND(5),      // e.g. "PLAY_SOUND", pop value as wizard number, call play sound
+  SPAWN_PARTICLES(6), // e.g. "SPAWN_PARTICLES", pop value as wizard number, call spawn particles
+  GET_HEALTH(7),      // e.g. "GET_HEALTH", pop value as wizard number, push wizard's health
+  GET_AGILITY(8),     // e.g. "GET_AGILITY", pop value as wizard number, push wizard's agility
+  GET_WISDOM(9),      // e.g. "GET_WISDOM", pop value as wizard number, push wizard's wisdom
+  ADD(10),            // e.g. "ADD", pop 2 values, push their sum
+  DIVIDE(11);         // e.g. "DIVIDE", pop 2 values, push their division
+  // ...
+}
+```
+
+At the heart of our example is the `VirtualMachine` class. It takes instructions as input and
+executes them to provide the game object behavior.
+
+```java
+@Getter
+@Slf4j
+public class VirtualMachine {
+
+  private final Stack<Integer> stack = new Stack<>();
+
+  private final Wizard[] wizards = new Wizard[2];
+
+  public VirtualMachine() {
+    wizards[0] = new Wizard(randomInt(3, 32), randomInt(3, 32), randomInt(3, 32),
+        0, 0);
+    wizards[1] = new Wizard(randomInt(3, 32), randomInt(3, 32), randomInt(3, 32),
+        0, 0);
+  }
+
+  public VirtualMachine(Wizard wizard1, Wizard wizard2) {
+    wizards[0] = wizard1;
+    wizards[1] = wizard2;
+  }
+
+  public void execute(int[] bytecode) {
+    for (var i = 0; i < bytecode.length; i++) {
+      Instruction instruction = Instruction.getInstruction(bytecode[i]);
+      switch (instruction) {
+        case LITERAL:
+          // Read the next byte from the bytecode.
+          int value = bytecode[++i];
+          // Push the next value to stack
+          stack.push(value);
+          break;
+        case SET_AGILITY:
+          var amount = stack.pop();
+          var wizard = stack.pop();
+          setAgility(wizard, amount);
+          break;
+        case SET_WISDOM:
+          amount = stack.pop();
+          wizard = stack.pop();
+          setWisdom(wizard, amount);
+          break;
+        case SET_HEALTH:
+          amount = stack.pop();
+          wizard = stack.pop();
+          setHealth(wizard, amount);
+          break;
+        case GET_HEALTH:
+          wizard = stack.pop();
+          stack.push(getHealth(wizard));
+          break;
+        case GET_AGILITY:
+          wizard = stack.pop();
+          stack.push(getAgility(wizard));
+          break;
+        case GET_WISDOM:
+          wizard = stack.pop();
+          stack.push(getWisdom(wizard));
+          break;
+        case ADD:
+          var a = stack.pop();
+          var b = stack.pop();
+          stack.push(a + b);
+          break;
+        case DIVIDE:
+          a = stack.pop();
+          b = stack.pop();
+          stack.push(b / a);
+          break;
+        case PLAY_SOUND:
+          wizard = stack.pop();
+          getWizards()[wizard].playSound();
+          break;
+        case SPAWN_PARTICLES:
+          wizard = stack.pop();
+          getWizards()[wizard].spawnParticles();
+          break;
+        default:
+          throw new IllegalArgumentException("Invalid instruction value");
+      }
+      LOGGER.info("Executed " + instruction.name() + ", Stack contains " + getStack());
+    }
+  }
+
+  public void setHealth(int wizard, int amount) {
+    wizards[wizard].setHealth(amount);
+  }
+  // other setters ->
+  // ...
+}
+```
+
+Now we can show the full example utilizing the virtual machine.
+
+```java
+  public static void main(String[] args) {
+
+    var vm = new VirtualMachine(
+        new Wizard(45, 7, 11, 0, 0),
+        new Wizard(36, 18, 8, 0, 0));
+
+    vm.execute(InstructionConverterUtil.convertToByteCode("LITERAL 0"));
+    vm.execute(InstructionConverterUtil.convertToByteCode("LITERAL 0"));
+    vm.execute(InstructionConverterUtil.convertToByteCode("GET_HEALTH"));
+    vm.execute(InstructionConverterUtil.convertToByteCode("LITERAL 0"));
+    vm.execute(InstructionConverterUtil.convertToByteCode("GET_AGILITY"));
+    vm.execute(InstructionConverterUtil.convertToByteCode("LITERAL 0"));
+    vm.execute(InstructionConverterUtil.convertToByteCode("GET_WISDOM"));
+    vm.execute(InstructionConverterUtil.convertToByteCode("ADD"));
+    vm.execute(InstructionConverterUtil.convertToByteCode("LITERAL 2"));
+    vm.execute(InstructionConverterUtil.convertToByteCode("DIVIDE"));
+    vm.execute(InstructionConverterUtil.convertToByteCode("ADD"));
+    vm.execute(InstructionConverterUtil.convertToByteCode("SET_HEALTH"));
+  }
+```
+
+Here is the console output.
+
+```
+16:20:10.193 [main] INFO com.iluwatar.bytecode.VirtualMachine - Executed LITERAL, Stack contains [0]
+16:20:10.196 [main] INFO com.iluwatar.bytecode.VirtualMachine - Executed LITERAL, Stack contains [0, 0]
+16:20:10.197 [main] INFO com.iluwatar.bytecode.VirtualMachine - Executed GET_HEALTH, Stack contains [0, 45]
+16:20:10.197 [main] INFO com.iluwatar.bytecode.VirtualMachine - Executed LITERAL, Stack contains [0, 45, 0]
+16:20:10.197 [main] INFO com.iluwatar.bytecode.VirtualMachine - Executed GET_AGILITY, Stack contains [0, 45, 7]
+16:20:10.197 [main] INFO com.iluwatar.bytecode.VirtualMachine - Executed LITERAL, Stack contains [0, 45, 7, 0]
+16:20:10.197 [main] INFO com.iluwatar.bytecode.VirtualMachine - Executed GET_WISDOM, Stack contains [0, 45, 7, 11]
+16:20:10.197 [main] INFO com.iluwatar.bytecode.VirtualMachine - Executed ADD, Stack contains [0, 45, 18]
+16:20:10.197 [main] INFO com.iluwatar.bytecode.VirtualMachine - Executed LITERAL, Stack contains [0, 45, 18, 2]
+16:20:10.198 [main] INFO com.iluwatar.bytecode.VirtualMachine - Executed DIVIDE, Stack contains [0, 45, 9]
+16:20:10.198 [main] INFO com.iluwatar.bytecode.VirtualMachine - Executed ADD, Stack contains [0, 54]
+16:20:10.198 [main] INFO com.iluwatar.bytecode.VirtualMachine - Executed SET_HEALTH, Stack contains []
+```

 ## Class diagram
+
 ![alt text](./etc/bytecode.urm.png "Bytecode class diagram")

 ## Applicability
+
 Use the Bytecode pattern when you have a lot of behavior you need to define and your
 game’s implementation language isn’t a good fit because:

-* it’s too low-level, making it tedious or error-prone to program in.
-* iterating on it takes too long due to slow compile times or other tooling issues.
-* it has too much trust. If you want to ensure the behavior being defined can’t break the game, you need to sandbox it from the rest of the codebase.
+* It’s too low-level, making it tedious or error-prone to program in.
+* Iterating on it takes too long due to slow compile times or other tooling issues.
+* It has too much trust. If you want to ensure the behavior being defined can’t break the game, you need to sandbox it from the rest of the codebase.
+
+## Related patterns
+
+* [Interpreter](https://java-design-patterns.com/patterns/interpreter/)

 ## Credits

--- a/bytecode/etc/bytecode.png
+++ b/bytecode/etc/bytecode.png
--- a/bytecode/etc/bytecode.ucls
+++ b/bytecode/etc/bytecode.ucls
@ -1,49 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<class-diagram version="1.2.3" icons="true" always-add-relationships="false" generalizations="true" realizations="true" 
-  associations="true" dependencies="false" nesting-relationships="true" router="FAN">  
-  <class id="1" language="java" name="com.iluwatar.bytecode.VirtualMachine" project="bytecode" 
-    file="/bytecode/src/main/java/com/iluwatar/bytecode/VirtualMachine.java" binary="false" corner="BOTTOM_RIGHT">    
-    <position height="-1" width="-1" x="455" y="173"/>    
-    <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" 
-      sort-features="false" accessors="true" visibility="true">      
-      <attributes public="true" package="true" protected="true" private="true" static="true"/>      
-      <operations public="true" package="true" protected="true" private="true" static="true"/>    
-    </display>  
-  </class>  
-  <class id="2" language="java" name="com.iluwatar.bytecode.App" project="bytecode" 
-    file="/bytecode/src/main/java/com/iluwatar/bytecode/App.java" binary="false" corner="BOTTOM_RIGHT">    
-    <position height="-1" width="-1" x="148" y="110"/>    
-    <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" 
-      sort-features="false" accessors="true" visibility="true">      
-      <attributes public="true" package="true" protected="true" private="true" static="true"/>      
-      <operations public="true" package="true" protected="true" private="true" static="true"/>    
-    </display>  
-  </class>  
-  <class id="3" language="java" name="com.iluwatar.bytecode.Wizard" project="bytecode" 
-    file="/bytecode/src/main/java/com/iluwatar/bytecode/Wizard.java" binary="false" corner="BOTTOM_RIGHT">    
-    <position height="-1" width="-1" x="148" y="416"/>    
-    <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" 
-      sort-features="false" accessors="true" visibility="true">      
-      <attributes public="true" package="true" protected="true" private="true" static="true"/>      
-      <operations public="true" package="true" protected="true" private="true" static="true"/>    
-    </display>  
-  </class>  
-  <association id="4">    
-    <end type="SOURCE" refId="1" navigable="false" variant="ASSOCIATION">      
-      <attribute id="5" name="wizards">        
-        <position height="18" width="48" x="296" y="291"/>      
-      </attribute>      
-      <multiplicity id="6" minimum="0" maximum="2147483647">        
-        <position height="0" width="0" x="-327" y="-27"/>      
-      </multiplicity>    
-    </end>    
-    <end type="TARGET" refId="3" navigable="true" variant="ASSOCIATION"/>    
-    <display labels="true" multiplicity="true"/>  
-  </association>  
-  <classifier-display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" 
-    sort-features="false" accessors="true" visibility="true">    
-    <attributes public="true" package="true" protected="true" private="true" static="true"/>    
-    <operations public="true" package="true" protected="true" private="true" static="true"/>  
-  </classifier-display>  
-  <association-display labels="true" multiplicity="true"/>
-</class-diagram>
--- a/bytecode/etc/bytecode.urm.png
+++ b/bytecode/etc/bytecode.urm.png
--- a/bytecode/etc/bytecode.urm.puml
+++ b/bytecode/etc/bytecode.urm.puml
@ -3,7 +3,6 @@ package com.iluwatar.bytecode {
  class App {
    - LOGGER : Logger {static}
    + App()
-    - interpretInstruction(instruction : String, vm : VirtualMachine) {static}
    + main(args : String[]) {static}
  }
  enum Instruction {
@ -18,22 +17,25 @@ package com.iluwatar.bytecode {
    + SET_HEALTH {static}
    + SET_WISDOM {static}
    + SPAWN_PARTICLES {static}
-    - value : int
+    - intValue : int
    + getInstruction(value : int) : Instruction {static}
    + getIntValue() : int
    + valueOf(name : String) : Instruction {static}
    + values() : Instruction[] {static}
  }
  class VirtualMachine {
+    - LOGGER : Logger {static}
    - stack : Stack<Integer>
    - wizards : Wizard[]
    + VirtualMachine()
+    + VirtualMachine(wizard1 : Wizard, wizard2 : Wizard)
    + execute(bytecode : int[])
    + getAgility(wizard : int) : int
    + getHealth(wizard : int) : int
    + getStack() : Stack<Integer>
    + getWisdom(wizard : int) : int
    + getWizards() : Wizard[]
+    - randomInt(min : int, max : int) : int
    + setAgility(wizard : int, amount : int)
    + setHealth(wizard : int, amount : int)
    + setWisdom(wizard : int, amount : int)
@ -45,7 +47,7 @@ package com.iluwatar.bytecode {
    - numberOfPlayedSounds : int
    - numberOfSpawnedParticles : int
    - wisdom : int
-    + Wizard()
+    + Wizard(health : int, agility : int, wisdom : int, numberOfPlayedSounds : int, numberOfSpawnedParticles : int)
    + getAgility() : int
    + getHealth() : int
    + getNumberOfPlayedSounds() : int
@ -54,6 +56,8 @@ package com.iluwatar.bytecode {
    + playSound()
    + setAgility(agility : int)
    + setHealth(health : int)
+    + setNumberOfPlayedSounds(numberOfPlayedSounds : int)
+    + setNumberOfSpawnedParticles(numberOfSpawnedParticles : int)
    + setWisdom(wisdom : int)
    + spawnParticles()
  }
--- a/bytecode/pom.xml
+++ b/bytecode/pom.xml
@ -29,7 +29,7 @@
 	<parent>
 		<artifactId>java-design-patterns</artifactId>
 		<groupId>com.iluwatar</groupId>
-		<version>1.24.0-SNAPSHOT</version>
+		<version>1.25.0-SNAPSHOT</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>

--- a/bytecode/src/main/java/com/iluwatar/bytecode/App.java
+++ b/bytecode/src/main/java/com/iluwatar/bytecode/App.java
@ -49,33 +49,21 @@ public class App {
   */
  public static void main(String[] args) {

-    var wizard = new Wizard();
-    wizard.setHealth(45);
-    wizard.setAgility(7);
-    wizard.setWisdom(11);
+    var vm = new VirtualMachine(
+        new Wizard(45, 7, 11, 0, 0),
+        new Wizard(36, 18, 8, 0, 0));

-    var vm = new VirtualMachine();
-    vm.getWizards()[0] = wizard;
-
-    String literal = "LITERAL 0";
-
-    interpretInstruction(literal, vm);
-    interpretInstruction(literal, vm);
-    interpretInstruction("GET_HEALTH", vm);
-    interpretInstruction(literal, vm);
-    interpretInstruction("GET_AGILITY", vm);
-    interpretInstruction(literal, vm);
-    interpretInstruction("GET_WISDOM ", vm);
-    interpretInstruction("ADD", vm);
-    interpretInstruction("LITERAL 2", vm);
-    interpretInstruction("DIVIDE", vm);
-    interpretInstruction("ADD", vm);
-    interpretInstruction("SET_HEALTH", vm);
-  }
-
-  private static void interpretInstruction(String instruction, VirtualMachine vm) {
-    vm.execute(InstructionConverterUtil.convertToByteCode(instruction));
-    var stack = vm.getStack();
-    LOGGER.info(instruction + String.format("%" + (12 - instruction.length()) + "s", "") + stack);
+    vm.execute(InstructionConverterUtil.convertToByteCode("LITERAL 0"));
+    vm.execute(InstructionConverterUtil.convertToByteCode("LITERAL 0"));
+    vm.execute(InstructionConverterUtil.convertToByteCode("GET_HEALTH"));
+    vm.execute(InstructionConverterUtil.convertToByteCode("LITERAL 0"));
+    vm.execute(InstructionConverterUtil.convertToByteCode("GET_AGILITY"));
+    vm.execute(InstructionConverterUtil.convertToByteCode("LITERAL 0"));
+    vm.execute(InstructionConverterUtil.convertToByteCode("GET_WISDOM"));
+    vm.execute(InstructionConverterUtil.convertToByteCode("ADD"));
+    vm.execute(InstructionConverterUtil.convertToByteCode("LITERAL 2"));
+    vm.execute(InstructionConverterUtil.convertToByteCode("DIVIDE"));
+    vm.execute(InstructionConverterUtil.convertToByteCode("ADD"));
+    vm.execute(InstructionConverterUtil.convertToByteCode("SET_HEALTH"));
  }
 }
--- a/bytecode/src/main/java/com/iluwatar/bytecode/Instruction.java
+++ b/bytecode/src/main/java/com/iluwatar/bytecode/Instruction.java
@ -33,17 +33,17 @@ import lombok.Getter;
@Getter
 public enum Instruction {

-  LITERAL(1),
-  SET_HEALTH(2),
-  SET_WISDOM(3),
-  SET_AGILITY(4),
-  PLAY_SOUND(5),
-  SPAWN_PARTICLES(6),
-  GET_HEALTH(7),
-  GET_AGILITY(8),
-  GET_WISDOM(9),
-  ADD(10),
-  DIVIDE(11);
+  LITERAL(1),         // e.g. "LITERAL 0", push 0 to stack
+  SET_HEALTH(2),      // e.g. "SET_HEALTH", pop health and wizard number, call set health
+  SET_WISDOM(3),      // e.g. "SET_WISDOM", pop wisdom and wizard number, call set wisdom
+  SET_AGILITY(4),     // e.g. "SET_AGILITY", pop agility and wizard number, call set agility
+  PLAY_SOUND(5),      // e.g. "PLAY_SOUND", pop value as wizard number, call play sound
+  SPAWN_PARTICLES(6), // e.g. "SPAWN_PARTICLES", pop value as wizard number, call spawn particles
+  GET_HEALTH(7),      // e.g. "GET_HEALTH", pop value as wizard number, push wizard's health
+  GET_AGILITY(8),     // e.g. "GET_AGILITY", pop value as wizard number, push wizard's agility
+  GET_WISDOM(9),      // e.g. "GET_WISDOM", pop value as wizard number, push wizard's wisdom
+  ADD(10),            // e.g. "ADD", pop 2 values, push their sum
+  DIVIDE(11);         // e.g. "DIVIDE", pop 2 values, push their division

  private final int intValue;

--- a/bytecode/src/main/java/com/iluwatar/bytecode/VirtualMachine.java
+++ b/bytecode/src/main/java/com/iluwatar/bytecode/VirtualMachine.java
@ -24,12 +24,15 @@
 package com.iluwatar.bytecode;

 import java.util.Stack;
+import java.util.concurrent.ThreadLocalRandom;
 import lombok.Getter;
+import lombok.extern.slf4j.Slf4j;

 /**
 * Implementation of virtual machine.
 */
@Getter
+@Slf4j
 public class VirtualMachine {

  private final Stack<Integer> stack = new Stack<>();
@ -37,12 +40,21 @@ public class VirtualMachine {
  private final Wizard[] wizards = new Wizard[2];

  /**
-   * Constructor.
+   * No-args constructor.
   */
  public VirtualMachine() {
-    for (var i = 0; i < wizards.length; i++) {
-      wizards[i] = new Wizard();
-    }
+    wizards[0] = new Wizard(randomInt(3, 32), randomInt(3, 32), randomInt(3, 32),
+        0, 0);
+    wizards[1] = new Wizard(randomInt(3, 32), randomInt(3, 32), randomInt(3, 32),
+        0, 0);
+  }
+
+  /**
+   * Constructor taking the wizards as arguments.
+   */
+  public VirtualMachine(Wizard wizard1, Wizard wizard2) {
+    wizards[0] = wizard1;
+    wizards[1] = wizard2;
  }

  /**
@ -57,6 +69,7 @@ public class VirtualMachine {
        case LITERAL:
          // Read the next byte from the bytecode.
          int value = bytecode[++i];
+          // Push the next value to stack
          stack.push(value);
          break;
        case SET_AGILITY:
@ -107,6 +120,7 @@ public class VirtualMachine {
        default:
          throw new IllegalArgumentException("Invalid instruction value");
      }
+      LOGGER.info("Executed " + instruction.name() + ", Stack contains " + getStack());
    }
  }

@ -133,4 +147,8 @@ public class VirtualMachine {
  public int getAgility(int wizard) {
    return wizards[wizard].getAgility();
  }
+
+  private int randomInt(int min, int max) {
+    return ThreadLocalRandom.current().nextInt(min, max + 1);
+  }
 }
--- a/bytecode/src/main/java/com/iluwatar/bytecode/Wizard.java
+++ b/bytecode/src/main/java/com/iluwatar/bytecode/Wizard.java
@ -23,6 +23,7 @@

 package com.iluwatar.bytecode;

+import lombok.AllArgsConstructor;
 import lombok.Getter;
 import lombok.Setter;
 import lombok.extern.slf4j.Slf4j;
@ -31,16 +32,15 @@ import lombok.extern.slf4j.Slf4j;
 * This class represent game objects which properties can be changed by instructions interpreted by
 * virtual machine.
 */
+@AllArgsConstructor
@Setter
@Getter
@Slf4j
 public class Wizard {

  private int health;
-
  private int agility;
  private int wisdom;
-
  private int numberOfPlayedSounds;
  private int numberOfSpawnedParticles;

@ -53,5 +53,4 @@ public class Wizard {
    LOGGER.info("Spawning particles");
    numberOfSpawnedParticles++;
  }
-
 }
--- a/bytecode/src/main/java/com/iluwatar/bytecode/util/InstructionConverterUtil.java
+++ b/bytecode/src/main/java/com/iluwatar/bytecode/util/InstructionConverterUtil.java
@ -73,6 +73,4 @@ public class InstructionConverterUtil {
      return false;
    }
  }
-
-
 }
--- a/caching/README.md
+++ b/caching/README.md
@ -4,26 +4,333 @@ title: Caching
 folder: caching
 permalink: /patterns/caching/
 categories: Behavioral
+language: en
 tags:
  - Performance
  - Cloud distributed
 ---

 ## Intent
-To avoid expensive re-acquisition of resources by not releasing
-the resources immediately after their use. The resources retain their identity, are kept in some
-fast-access storage, and are re-used to avoid having to acquire them again.
+
+The caching pattern avoids expensive re-acquisition of resources by not releasing them immediately 
+after use. The resources retain their identity, are kept in some fast-access storage, and are 
+re-used to avoid having to acquire them again.
+
+## Explanation
+
+Real world example
+
+> A team is working on a website that provides new homes for abandoned cats. People can post their
+> cats on the website after registering, but all the new posts require approval from one of the
+> site moderators. The user accounts of the site moderators contain a specific flag and the data
+> is stored in a MongoDB database. Checking for the moderator flag each time a post is viewed 
+> becomes expensive and it's a good idea to utilize caching here.
+
+In plain words
+
+> Caching pattern keeps frequently needed data in fast-access storage to improve performance.
+
+Wikipedia says:
+
+> In computing, a cache is a hardware or software component that stores data so that future 
+> requests for that data can be served faster; the data stored in a cache might be the result of 
+> an earlier computation or a copy of data stored elsewhere. A cache hit occurs when the requested 
+> data can be found in a cache, while a cache miss occurs when it cannot. Cache hits are served by 
+> reading data from the cache, which is faster than recomputing a result or reading from a slower 
+> data store; thus, the more requests that can be served from the cache, the faster the system 
+> performs.
+
+**Programmatic Example**
+
+Let's first look at the data layer of our application. The interesting classes are `UserAccount`
+which is a simple Java object containing the user account details, and `DbManager` which handles
+reading and writing of these objects to/from MongoDB database.
+
+```java
+@Setter
+@Getter
+@AllArgsConstructor
+@ToString
+public class UserAccount {
+  private String userId;
+  private String userName;
+  private String additionalInfo;
+}
+
+@Slf4j
+public final class DbManager {
+
+  private static MongoClient mongoClient;
+  private static MongoDatabase db;
+
+  private DbManager() { /*...*/ }
+
+  public static void createVirtualDb() { /*...*/ }
+
+  public static void connect() throws ParseException { /*...*/ }
+
+  public static UserAccount readFromDb(String userId) { /*...*/ }
+
+  public static void writeToDb(UserAccount userAccount) { /*...*/ }
+
+  public static void updateDb(UserAccount userAccount) { /*...*/ }
+
+  public static void upsertDb(UserAccount userAccount) { /*...*/ }
+}
+```
+
+In the example, we are demonstrating various different caching policies
+
+* Write-through writes data to the cache and DB in a single transaction
+* Write-around writes data immediately into the DB instead of the cache
+* Write-behind writes data into the cache initially whilst the data is only written into the DB 
+  when the cache is full
+* Cache-aside pushes the responsibility of keeping the data synchronized in both data sources to 
+  the application itself
+* Read-through strategy is also included in the aforementioned strategies and it returns data from 
+  the cache to the caller if it exists, otherwise queries from DB and stores it into the cache for 
+  future use.
+  
+The cache implementation in `LruCache` is a hash table accompanied by a doubly 
+linked-list. The linked-list helps in capturing and maintaining the LRU data in the cache. When 
+data is queried (from the cache), added (to the cache), or updated, the data is moved to the front 
+of the list to depict itself as the most-recently-used data. The LRU data is always at the end of 
+the list.
+
+```java
+@Slf4j
+public class LruCache {
+
+  static class Node {
+    String userId;
+    UserAccount userAccount;
+    Node previous;
+    Node next;
+
+    public Node(String userId, UserAccount userAccount) {
+      this.userId = userId;
+      this.userAccount = userAccount;
+    }
+  }
+  
+  /* ... omitted details ... */
+
+  public LruCache(int capacity) {
+    this.capacity = capacity;
+  }
+
+  public UserAccount get(String userId) {
+    if (cache.containsKey(userId)) {
+      var node = cache.get(userId);
+      remove(node);
+      setHead(node);
+      return node.userAccount;
+    }
+    return null;
+  }
+
+  public void set(String userId, UserAccount userAccount) {
+    if (cache.containsKey(userId)) {
+      var old = cache.get(userId);
+      old.userAccount = userAccount;
+      remove(old);
+      setHead(old);
+    } else {
+      var newNode = new Node(userId, userAccount);
+      if (cache.size() >= capacity) {
+        LOGGER.info("# Cache is FULL! Removing {} from cache...", end.userId);
+        cache.remove(end.userId); // remove LRU data from cache.
+        remove(end);
+        setHead(newNode);
+      } else {
+        setHead(newNode);
+      }
+      cache.put(userId, newNode);
+    }
+  }
+
+  public boolean contains(String userId) {
+    return cache.containsKey(userId);
+  }
+  
+  public void remove(Node node) { /* ... */ }
+  public void setHead(Node node) { /* ... */ }
+  public void invalidate(String userId) { /* ... */ }
+  public boolean isFull() { /* ... */ }
+  public UserAccount getLruData() { /* ... */ }
+  public void clear() { /* ... */ }
+  public List<UserAccount> getCacheDataInListForm() { /* ... */ }
+  public void setCapacity(int newCapacity) { /* ... */ }
+}
+```
+
+The next layer we are going to look at is `CacheStore` which implements the different caching
+strategies.
+
+```java
+@Slf4j
+public class CacheStore {
+
+  private static LruCache cache;
+
+  /* ... details omitted ... */
+
+  public static UserAccount readThrough(String userId) {
+    if (cache.contains(userId)) {
+      LOGGER.info("# Cache Hit!");
+      return cache.get(userId);
+    }
+    LOGGER.info("# Cache Miss!");
+    UserAccount userAccount = DbManager.readFromDb(userId);
+    cache.set(userId, userAccount);
+    return userAccount;
+  }
+
+  public static void writeThrough(UserAccount userAccount) {
+    if (cache.contains(userAccount.getUserId())) {
+      DbManager.updateDb(userAccount);
+    } else {
+      DbManager.writeToDb(userAccount);
+    }
+    cache.set(userAccount.getUserId(), userAccount);
+  }
+
+  public static void clearCache() {
+    if (cache != null) {
+      cache.clear();
+    }
+  }
+
+  public static void flushCache() {
+    LOGGER.info("# flushCache...");
+    Optional.ofNullable(cache)
+        .map(LruCache::getCacheDataInListForm)
+        .orElse(List.of())
+        .forEach(DbManager::updateDb);
+  }
+
+  /* ... omitted the implementation of other caching strategies ... */
+
+}
+```
+
+`AppManager` helps to bridge the gap in communication between the main class and the application's
+back-end. DB connection is initialized through this class. The chosen caching strategy/policy is
+also initialized here. Before the cache can be used, the size of the cache has to be set. Depending 
+on the chosen caching policy, `AppManager` will call the appropriate function in the `CacheStore` 
+class.
+
+```java
+@Slf4j
+public final class AppManager {
+
+  private static CachingPolicy cachingPolicy;
+
+  private AppManager() {
+  }
+
+  public static void initDb(boolean useMongoDb) { /* ... */ }
+
+  public static void initCachingPolicy(CachingPolicy policy) { /* ... */ }
+
+  public static void initCacheCapacity(int capacity) { /* ... */ }
+
+  public static UserAccount find(String userId) {
+    if (cachingPolicy == CachingPolicy.THROUGH || cachingPolicy == CachingPolicy.AROUND) {
+      return CacheStore.readThrough(userId);
+    } else if (cachingPolicy == CachingPolicy.BEHIND) {
+      return CacheStore.readThroughWithWriteBackPolicy(userId);
+    } else if (cachingPolicy == CachingPolicy.ASIDE) {
+      return findAside(userId);
+    }
+    return null;
+  }
+
+  public static void save(UserAccount userAccount) {
+    if (cachingPolicy == CachingPolicy.THROUGH) {
+      CacheStore.writeThrough(userAccount);
+    } else if (cachingPolicy == CachingPolicy.AROUND) {
+      CacheStore.writeAround(userAccount);
+    } else if (cachingPolicy == CachingPolicy.BEHIND) {
+      CacheStore.writeBehind(userAccount);
+    } else if (cachingPolicy == CachingPolicy.ASIDE) {
+      saveAside(userAccount);
+    }
+  }
+
+  public static String printCacheContent() {
+    return CacheStore.print();
+  }
+
+  /* ... details omitted ... */
+}
+```
+
+Here is what we do in the main class of the application.
+
+```java
+@Slf4j
+public class App {
+
+  public static void main(String[] args) {
+    AppManager.initDb(false);
+    AppManager.initCacheCapacity(3);
+    var app = new App();
+    app.useReadAndWriteThroughStrategy();
+    app.useReadThroughAndWriteAroundStrategy();
+    app.useReadThroughAndWriteBehindStrategy();
+    app.useCacheAsideStategy();
+  }
+
+  public void useReadAndWriteThroughStrategy() {
+    LOGGER.info("# CachingPolicy.THROUGH");
+    AppManager.initCachingPolicy(CachingPolicy.THROUGH);
+    var userAccount1 = new UserAccount("001", "John", "He is a boy.");
+    AppManager.save(userAccount1);
+    LOGGER.info(AppManager.printCacheContent());
+    AppManager.find("001");
+    AppManager.find("001");
+  }
+
+  public void useReadThroughAndWriteAroundStrategy() { /* ... */ }
+
+  public void useReadThroughAndWriteBehindStrategy() { /* ... */ }
+
+  public void useCacheAsideStategy() { /* ... */ }
+}
+```
+
+Finally, here is some of the console output from the program.
+
+```
+12:32:53.845 [main] INFO com.iluwatar.caching.App - # CachingPolicy.THROUGH
+12:32:53.900 [main] INFO com.iluwatar.caching.App - 
+--CACHE CONTENT--
+UserAccount(userId=001, userName=John, additionalInfo=He is a boy.)
+----
+```

 ## Class diagram
+
 ![alt text](./etc/caching.png "Caching")

 ## Applicability
+
 Use the Caching pattern(s) when

-* Repetitious acquisition, initialization, and release of the same resource causes unnecessary performance overhead.
+* Repetitious acquisition, initialization, and release of the same resource cause unnecessary 
+  performance overhead.
+
+## Related patterns
+
+* [Proxy](https://java-design-patterns.com/patterns/proxy/)

 ## Credits

 * [Write-through, write-around, write-back: Cache explained](http://www.computerweekly.com/feature/Write-through-write-around-write-back-Cache-explained)
 * [Read-Through, Write-Through, Write-Behind, and Refresh-Ahead Caching](https://docs.oracle.com/cd/E15357_01/coh.360/e15723/cache_rtwtwbra.htm#COHDG5177)
 * [Cache-Aside pattern](https://docs.microsoft.com/en-us/azure/architecture/patterns/cache-aside)
+* [Java EE 8 High Performance: Master techniques such as memory optimization, caching, concurrency, and multithreading to achieve maximum performance from your enterprise applications](https://www.amazon.com/gp/product/178847306X/ref=as_li_qf_asin_il_tl?ie=UTF8&tag=javadesignpat-20&creative=9325&linkCode=as2&creativeASIN=178847306X&linkId=e948720055599f248cdac47da9125ff4)
+* [Java Performance: In-Depth Advice for Tuning and Programming Java 8, 11, and Beyond](https://www.amazon.com/gp/product/1492056111/ref=as_li_qf_asin_il_tl?ie=UTF8&tag=javadesignpat-20&creative=9325&linkCode=as2&creativeASIN=1492056111&linkId=7e553581559b9ec04221259e52004b08)
+* [Effective Java](https://www.amazon.com/gp/product/B078H61SCH/ref=as_li_qf_asin_il_tl?ie=UTF8&tag=javadesignpat-20&creative=9325&linkCode=as2&creativeASIN=B078H61SCH&linkId=f06607a0b48c76541ef19c5b8b9e7882)
+* [Java Performance: The Definitive Guide: Getting the Most Out of Your Code](https://www.amazon.com/gp/product/1449358454/ref=as_li_qf_asin_il_tl?ie=UTF8&tag=javadesignpat-20&creative=9325&linkCode=as2&creativeASIN=1449358454&linkId=475c18363e350630cc0b39ab681b2687)
--- a/caching/pom.xml
+++ b/caching/pom.xml
@ -29,7 +29,7 @@
  <parent>
    <groupId>com.iluwatar</groupId>
    <artifactId>java-design-patterns</artifactId>
-    <version>1.24.0-SNAPSHOT</version>
+    <version>1.25.0-SNAPSHOT</version>
  </parent>
  <artifactId>caching</artifactId>
  <dependencies>
--- a/caching/src/main/java/com/iluwatar/caching/AppManager.java
+++ b/caching/src/main/java/com/iluwatar/caching/AppManager.java
@ -25,6 +25,7 @@ package com.iluwatar.caching;

 import java.text.ParseException;
 import java.util.Optional;
+import lombok.extern.slf4j.Slf4j;

 /**
 * AppManager helps to bridge the gap in communication between the main class and the application's
@ -33,6 +34,7 @@ import java.util.Optional;
 * Depending on the chosen caching policy, AppManager will call the appropriate function in the
 * CacheStore class.
 */
+@Slf4j
 public final class AppManager {

  private static CachingPolicy cachingPolicy;
@ -50,7 +52,7 @@ public final class AppManager {
      try {
        DbManager.connect();
      } catch (ParseException e) {
-        e.printStackTrace();
+        LOGGER.error("Error connecting to MongoDB", e);
      }
    } else {
      DbManager.createVirtualDb();
--- a/caching/src/main/java/com/iluwatar/caching/DbManager.java
+++ b/caching/src/main/java/com/iluwatar/caching/DbManager.java
@ -30,6 +30,7 @@ import com.mongodb.client.model.UpdateOptions;
 import java.text.ParseException;
 import java.util.HashMap;
 import java.util.Map;
+import lombok.extern.slf4j.Slf4j;
 import org.bson.Document;

 /**
@ -41,6 +42,7 @@ import org.bson.Document;
 * underlying data storage (connect()) or a simple Java data structure to (temporarily) store the
 * data/objects during runtime (createVirtualDB()).</p>
 */
+@Slf4j
 public final class DbManager {

  private static MongoClient mongoClient;
@ -83,7 +85,7 @@ public final class DbManager {
      try {
        connect();
      } catch (ParseException e) {
-        e.printStackTrace();
+        LOGGER.error("Error connecting to MongoDB", e);
      }
    }
    var iterable = db
@ -110,7 +112,7 @@ public final class DbManager {
      try {
        connect();
      } catch (ParseException e) {
-        e.printStackTrace();
+        LOGGER.error("Error connecting to MongoDB", e);
      }
    }
    db.getCollection(CachingConstants.USER_ACCOUNT).insertOne(
@ -132,7 +134,7 @@ public final class DbManager {
      try {
        connect();
      } catch (ParseException e) {
-        e.printStackTrace();
+        LOGGER.error("Error connecting to MongoDB", e);
      }
    }
    db.getCollection(CachingConstants.USER_ACCOUNT).updateOne(
@ -153,7 +155,7 @@ public final class DbManager {
      try {
        connect();
      } catch (ParseException e) {
-        e.printStackTrace();
+        LOGGER.error("Error connecting to MongoDB", e);
      }
    }
    db.getCollection(CachingConstants.USER_ACCOUNT).updateOne(
--- a/callback/README.md
+++ b/callback/README.md
@ -4,6 +4,7 @@ title: Callback
 folder: callback
 permalink: /patterns/callback/
 categories: Idiom
+language: en
 tags:
 - Reactive
 ---
--- a/callback/pom.xml
+++ b/callback/pom.xml
@ -29,7 +29,7 @@
  <parent>
    <groupId>com.iluwatar</groupId>
    <artifactId>java-design-patterns</artifactId>
-    <version>1.24.0-SNAPSHOT</version>
+    <version>1.25.0-SNAPSHOT</version>
  </parent>
  <artifactId>callback</artifactId>
  <dependencies>
--- a/chain/README.md
+++ b/chain/README.md
@ -4,6 +4,7 @@ title: Chain of responsibility
 folder: chain
 permalink: /patterns/chain/
 categories: Behavioral
+language: en
 tags:
 - Gang of Four
 ---
--- a/chain/pom.xml
+++ b/chain/pom.xml
@ -29,7 +29,7 @@
  <parent>
    <groupId>com.iluwatar</groupId>
    <artifactId>java-design-patterns</artifactId>
-    <version>1.24.0-SNAPSHOT</version>
+    <version>1.25.0-SNAPSHOT</version>
  </parent>
  <artifactId>chain</artifactId>
  <dependencies>
--- a/circuit-breaker/README.md
+++ b/circuit-breaker/README.md
@ -4,6 +4,7 @@ title: Circuit Breaker
 folder: circuit-breaker
 permalink: /patterns/circuit-breaker/
 categories: Behavioral
+language: en
 tags:
  - Performance
  - Decoupling
--- a/circuit-breaker/pom.xml
+++ b/circuit-breaker/pom.xml
@ -27,7 +27,7 @@
    <parent>
        <groupId>com.iluwatar</groupId>
        <artifactId>java-design-patterns</artifactId>
-        <version>1.24.0-SNAPSHOT</version>
+        <version>1.25.0-SNAPSHOT</version>
    </parent>
    <artifactId>circuit-breaker</artifactId>
    <dependencies>
--- a/cloud-static-content-hosting/README.md
+++ b/cloud-static-content-hosting/README.md
@ -4,6 +4,7 @@ title: Static Content Hosting
 folder: cloud-static-content-hosting
 permalink: /patterns/cloud-static-content-hosting/
 categories: Cloud
+language: en
 tags:
 - Cloud distributed
 ---
--- a/collection-pipeline/README.md
+++ b/collection-pipeline/README.md
@ -4,6 +4,7 @@ title: Collection Pipeline
 folder: collection-pipeline
 permalink: /patterns/collection-pipeline/
 categories: Functional
+language: en
 tags:
 - Reactive
 ---
--- a/collection-pipeline/pom.xml
+++ b/collection-pipeline/pom.xml
@ -27,7 +27,7 @@
  <parent>
    <groupId>com.iluwatar</groupId>
    <artifactId>java-design-patterns</artifactId>
-    <version>1.24.0-SNAPSHOT</version>
+    <version>1.25.0-SNAPSHOT</version>
  </parent>
  <artifactId>collection-pipeline</artifactId>
  <dependencies>
--- a/combinator/README.md
+++ b/combinator/README.md
@ -4,6 +4,7 @@ title: Combinator
 folder: combinator
 permalink: /patterns/combinator/
 categories: Idiom
+language: en
 tags:
 - Reactive
 ---
--- a/combinator/pom.xml
+++ b/combinator/pom.xml
@ -29,7 +29,7 @@
  <parent>
    <groupId>com.iluwatar</groupId>
    <artifactId>java-design-patterns</artifactId>
-    <version>1.24.0-SNAPSHOT</version>
+    <version>1.25.0-SNAPSHOT</version>
  </parent>

  <artifactId>combinator</artifactId>
--- a/command/README.md
+++ b/command/README.md
@ -4,6 +4,7 @@ title: Command
 folder: command
 permalink: /patterns/command/
 categories: Behavioral
+language: en
 tags:
 - Gang of Four
 ---
--- a/command/pom.xml
+++ b/command/pom.xml
@ -29,7 +29,7 @@
  <parent>
    <groupId>com.iluwatar</groupId>
    <artifactId>java-design-patterns</artifactId>
-    <version>1.24.0-SNAPSHOT</version>
+    <version>1.25.0-SNAPSHOT</version>
  </parent>
  <artifactId>command</artifactId>
  <dependencies>
--- a/commander/README.md
+++ b/commander/README.md
@ -4,6 +4,7 @@ title: Commander
 folder: commander
 permalink: /patterns/commander/
 categories: Concurrency
+language: en
 tags:
 - Cloud distributed
 ---
--- a/commander/pom.xml
+++ b/commander/pom.xml
@ -27,7 +27,7 @@
  <parent>
    <groupId>com.iluwatar</groupId>
    <artifactId>java-design-patterns</artifactId>
-    <version>1.24.0-SNAPSHOT</version>
+    <version>1.25.0-SNAPSHOT</version>
  </parent>
  <artifactId>commander</artifactId>
  <dependencies>
--- a/composite-entity/README.md
+++ b/composite-entity/README.md
@ -0,0 +1,123 @@
+---
+layout: pattern
+title: Composite Entity
+folder: composite-entity
+permalink: /patterns/composite-entity/
+categories: Structural
+language: en
+tags:
+ - Enterprise Integration Pattern
+---
+
+## Intent
+
+It is used to model, represent, and manage a set of persistent objects that are interrelated, rather than representing them as individual fine-grained entities. 
+
+## Explanation
+
+Real world example
+
+> For a console, there may be many interfaces that need to be managed and controlled. Using the composite entity pattern, dependent objects such as messages and signals can be combined together and controlled using a single object.
+
+In plain words
+
+> Composite entity pattern allows a set of related objects to be represented and managed by a unified object.
+
+**Programmatic Example**
+
+We need a generic solution for the problem. To achieve this, let's introduce a generic 
+Composite Entity Pattern.
+
+```java
+public abstract class DependentObject<T> {
+
+  T data;
+
+  public void setData(T message) {
+    this.data = message;
+  }
+
+  public T getData() {
+    return data;
+  }
+}
+
+public abstract class CoarseGrainedObject<T> {
+
+  DependentObject<T>[] dependentObjects;
+
+  public void setData(T... data) {
+    IntStream.range(0, data.length).forEach(i -> dependentObjects[i].setData(data[i]));
+  }
+
+  public T[] getData() {
+    return (T[]) Arrays.stream(dependentObjects).map(DependentObject::getData).toArray();
+  }
+}
+
+```
+
+The specialized composite entity `console` inherit from this base class as follows.
+
+```java
+public class MessageDependentObject extends DependentObject<String> {
+
+}
+
+public class SignalDependentObject extends DependentObject<String> {
+
+}
+
+public class ConsoleCoarseGrainedObject extends CoarseGrainedObject<String> {
+
+  @Override
+  public String[] getData() {
+    super.getData();
+    return new String[]{
+        dependentObjects[0].getData(), dependentObjects[1].getData()
+    };
+  }
+
+  public void init() {
+    dependentObjects = new DependentObject[]{
+        new MessageDependentObject(), new SignalDependentObject()};
+  }
+}
+
+public class CompositeEntity {
+
+  private final ConsoleCoarseGrainedObject console = new ConsoleCoarseGrainedObject();
+
+  public void setData(String message, String signal) {
+    console.setData(message, signal);
+  }
+
+  public String[] getData() {
+    return console.getData();
+  }
+}
+```
+
+Now managing the assignment of message and signal objects with the composite entity `console`.
+
+```java
+var console = new CompositeEntity();
+console.init();
+console.setData("No Danger", "Green Light");
+Arrays.stream(console.getData()).forEach(LOGGER::info);
+console.setData("Danger", "Red Light");
+Arrays.stream(console.getData()).forEach(LOGGER::info);
+```
+
+## Class diagram
+
+![alt text](./etc/composite_entity.urm.png "Composite Entity Pattern")
+
+## Applicability
+
+Use the Composite Entity Pattern in the following situation:
+
+* You want to manage multiple dependency objects through one object to adjust the degree of granularity between objects. At the same time, the lifetime of dependency objects depends on a coarse-grained object.
+## Credits
+
+* [Composite Entity Pattern in wikipedia](https://en.wikipedia.org/wiki/Composite_entity_pattern)
--- a/composite-entity/etc/composite-entity.urm.puml
+++ b/composite-entity/etc/composite-entity.urm.puml
@ -0,0 +1,45 @@
+@startuml
+package com.iluwatar.compositeentity {
+  class App {
+     + App(message: String, signal: String)
+     + main(args : String[]) {static}
+  }
+  class CompositeEntity{
+      - console : ConsoleCoarseGrainedObject
+      + CompositeEntity()
+      + setData(message: String, signal: String)
+      + getData()
+      + init()
+    }
+  abstract CoarseGrainedObject{
+    - dependentObjects : DependentObject[]
+    + CoarseGrainedObject()
+    + setData(data: T[])
+    + getData()
+  }
+  abstract DependentObject{
+      - data : T
+      + DependentObject()
+      + setData(data: T)
+      + getData()
+  }
+  class ConsoleCoarseGrainedObject{
+      + ConsoleCoarseGrainedObject()
+      + getData()
+      + init()
+  }
+  class MessageDependentObject{
+          + MessageDependentObject()
+  }
+  class SignalDependentObject{
+            + SignalDependentObject()
+  }
+
+  MessageDependentObject --|> DependentObject
+  SignalDependentObject  --|> DependentObject
+  ConsoleCoarseGrainedObject --|> CoarseGrainedObject
+  CompositeEntity -right-> ConsoleCoarseGrainedObject
+  CoarseGrainedObject "1" o--> "0.." DependentObject
+  App .right.> CompositeEntity
+}
+@enduml
--- a/composite-entity/etc/composite_entity.urm.png
+++ b/composite-entity/etc/composite_entity.urm.png
--- a/composite-entity/pom.xml
+++ b/composite-entity/pom.xml
@ -0,0 +1,63 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+    The MIT License
+    Copyright © 2014-2021 Ilkka Seppälä
+
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included in
+    all copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+    THE SOFTWARE.
+
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>java-design-patterns</artifactId>
+        <groupId>com.iluwatar</groupId>
+        <version>1.25.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>composite-entity</artifactId>
+    <dependencies>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-engine</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-assembly-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <configuration>
+                            <archive>
+                                <manifest>
+                                    <mainClass>com.iluwatar.composite-entity.com.iluwatar.compositeentity.App</mainClass>
+                                </manifest>
+                            </archive>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>
--- a/composite-entity/src/main/java/com/iluwatar/compositeentity/App.java
+++ b/composite-entity/src/main/java/com/iluwatar/compositeentity/App.java
@ -0,0 +1,61 @@
+/*
+ * The MIT License
+ * Copyright © 2014-2021 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+package com.iluwatar.compositeentity;
+
+import java.util.Arrays;
+import lombok.extern.slf4j.Slf4j;
+
+
+/**
+ * Composite entity is a Java EE Software design pattern and it is used to model, represent, and
+ * manage a set of interrelated persistent objects rather than representing them as individual
+ * fine-grained entity beans, and also a composite entity bean represents a graph of objects.
+ */
+@Slf4j
+public class App {
+
+
+  /**
+   * An instance that a console manages two related objects.
+   */
+  public App(String message, String signal) {
+    var console = new CompositeEntity();
+    console.init();
+    console.setData(message, signal);
+    Arrays.stream(console.getData()).forEach(LOGGER::info);
+    console.setData("Danger", "Red Light");
+    Arrays.stream(console.getData()).forEach(LOGGER::info);
+  }
+
+  /**
+   * Program entry point.
+   *
+   * @param args command line args
+   */
+  public static void main(String[] args) {
+
+    new App("No Danger", "Green Light");
+
+  }
+}
--- a/composite-entity/src/main/java/com/iluwatar/compositeentity/CoarseGrainedObject.java
+++ b/composite-entity/src/main/java/com/iluwatar/compositeentity/CoarseGrainedObject.java
@ -0,0 +1,46 @@
+/*
+ * The MIT License
+ * Copyright © 2014-2021 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+package com.iluwatar.compositeentity;
+
+import java.util.Arrays;
+import java.util.stream.IntStream;
+
+/**
+ * A coarse-grained object is an object with its own life cycle manages its own relationships to
+ * other objects. It can be an object contained in the composite entity, or, composite entity itself
+ * can be the coarse-grained object which holds dependent objects.
+ */
+
+public abstract class CoarseGrainedObject<T> {
+
+  DependentObject<T>[] dependentObjects;
+
+  public void setData(T... data) {
+    IntStream.range(0, data.length).forEach(i -> dependentObjects[i].setData(data[i]));
+  }
+
+  public T[] getData() {
+    return (T[]) Arrays.stream(dependentObjects).map(DependentObject::getData).toArray();
+  }
+}
--- a/composite-entity/src/main/java/com/iluwatar/compositeentity/CompositeEntity.java
+++ b/composite-entity/src/main/java/com/iluwatar/compositeentity/CompositeEntity.java
@ -0,0 +1,46 @@
+/*
+ * The MIT License
+ * Copyright © 2014-2021 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+package com.iluwatar.compositeentity;
+
+/**
+ * Composite entity is the coarse-grained entity bean which may be the coarse-grained object, or may
+ * contain a reference to the coarse-grained object.
+ */
+
+public class CompositeEntity {
+
+  private final ConsoleCoarseGrainedObject console = new ConsoleCoarseGrainedObject();
+
+  public void setData(String message, String signal) {
+    console.setData(message, signal);
+  }
+
+  public String[] getData() {
+    return console.getData();
+  }
+
+  public void init() {
+    console.init();
+  }
+}
--- a/composite-entity/src/main/java/com/iluwatar/compositeentity/ConsoleCoarseGrainedObject.java
+++ b/composite-entity/src/main/java/com/iluwatar/compositeentity/ConsoleCoarseGrainedObject.java
@ -0,0 +1,43 @@
+/*
+ * The MIT License
+ * Copyright © 2014-2021 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+package com.iluwatar.compositeentity;
+
+/**
+ * A specific CoarseGrainedObject to implement a console.
+ */
+
+public class ConsoleCoarseGrainedObject extends CoarseGrainedObject<String> {
+
+  @Override
+  public String[] getData() {
+    return new String[]{
+        dependentObjects[0].getData(), dependentObjects[1].getData()
+    };
+  }
+
+  public void init() {
+    dependentObjects = new DependentObject[]{
+        new MessageDependentObject(), new SignalDependentObject()};
+  }
+}
--- a/composite-entity/src/main/java/com/iluwatar/compositeentity/DependentObject.java
+++ b/composite-entity/src/main/java/com/iluwatar/compositeentity/DependentObject.java
@ -0,0 +1,43 @@
+/*
+ * The MIT License
+ * Copyright © 2014-2021 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+package com.iluwatar.compositeentity;
+
+/**
+ * It is an object, which can contain other dependent objects (there may be a tree of objects within
+ * the composite entity), that depends on the coarse-grained object and has its life cycle managed
+ * by the coarse-grained object.
+ */
+
+public abstract class DependentObject<T> {
+
+  T data;
+
+  public void setData(T message) {
+    this.data = message;
+  }
+
+  public T getData() {
+    return data;
+  }
+}
--- a/composite-entity/src/main/java/com/iluwatar/compositeentity/MessageDependentObject.java
+++ b/composite-entity/src/main/java/com/iluwatar/compositeentity/MessageDependentObject.java
@ -0,0 +1,32 @@
+/*
+ * The MIT License
+ * Copyright © 2014-2021 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+package com.iluwatar.compositeentity;
+
+/**
+ * The first DependentObject to show message.
+ */
+
+public class MessageDependentObject extends DependentObject<String> {
+
+}
--- a/composite-entity/src/main/java/com/iluwatar/compositeentity/SignalDependentObject.java
+++ b/composite-entity/src/main/java/com/iluwatar/compositeentity/SignalDependentObject.java
@ -0,0 +1,32 @@
+/*
+ * The MIT License
+ * Copyright © 2014-2021 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+package com.iluwatar.compositeentity;
+
+/**
+ * The second DependentObject to show message.
+ */
+
+public class SignalDependentObject extends DependentObject<String> {
+
+}
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
allcontributors[bot]	5bcb010931	docs: update .all-contributorsrc [skip ci]	2021-06-04 18:52:20 +00:00
allcontributors[bot]	fb45e5c731	docs: update README.md [skip ci]	2021-06-04 18:52:19 +00:00
Xenilo137	6cf025447a	fix: change 'swinged' to 'swung' in sword.java and hammer.java of bridge pattern (#1779 ) * minor (non-coding) change * Update Sword.java	2021-06-04 21:50:40 +03:00
allcontributors[bot]	dafe02f1be	docs: add JuanManuelAbate as a contributor (#1780 ) * docs: update README.md [skip ci] * docs: update .all-contributorsrc [skip ci] Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>	2021-06-04 21:39:47 +03:00
Juan Manuel Abate	784cdee819	localizations: #1771 Spanish translation and languages codes (#1777 ) * #1771 Move translations to a new directory to have more organization * #1771 spanish translation * #1771 change the language codes to follow ISO 639-1 and change the links * #1771 remove country flags	2021-06-04 21:36:42 +03:00
Subhrodip Mohanta	5e434b783e	fix: added license headers to newly created files (#1775 )	2021-05-31 22:39:42 +03:00
JackieNim	f597fc1b07	fix: Fixed pages showing up in wrong language (#1752 ) * Fix languages * Missed change for version number * Add language field for presentation * Revert change in README for double buffer Co-authored-by: Jackie Nim <=>	2021-05-19 19:49:05 +03:00
allcontributors[bot]	1b880c1818	docs: add tao-sun2 as a contributor (#1757 ) * docs: update README.md [skip ci] * docs: update .all-contributorsrc [skip ci] Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>	2021-05-17 22:09:29 +03:00
Tao	e498c25675	feature: #1319 add table module pattern (#1742 ) * modify table module pattern * fix code smells * resolve conversation Co-authored-by: tao-sun2 <sustc18st@gmai.com> Co-authored-by: Ilkka Seppälä <iluwatar@users.noreply.github.com>	2021-05-17 22:06:35 +03:00
Noam Greenshtain	122e6edb38	feature: resolve #1282 for Lockable Object pattern. (#1702 ) * Added Lockable-Object pattern. Closes #1282. * Refactor method name. * Refactor sonar lint bugs. * Added tests and enum Constants. * Increase coverage. * Changed @Data to Getters and Setters. * Iluwatar's comment on pull request #1702. * Fixed codes mells. * Incremented wait time to 3 seconds. * Reduced wait time to 2 seconds. * Cleaned Code Smells. * Incremented wait time, removed cool down. * Refactored README.md file. Co-authored-by: Subhrodip Mohanta <subhrodipmohanta@gmail.com>	2021-05-14 21:26:41 +05:30
allcontributors[bot]	ea3c9d955e	docs: add EdisonE3 as a contributor (#1751 ) * docs: update README.md [skip ci] * docs: update .all-contributorsrc [skip ci] Co-authored-by: Subhrodip Mohanta <hello@subho.xyz> Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>	2021-05-11 19:17:36 +05:30
EdisonE3	f1feb3f6a0	feature: Implement Presentation Model Pattern (#1710 ) * #415 initial all componets * #415 add src and tests * #415 add diagram * #415 add README * #415 add README * #415 change pom.xml * #415 change pom.xml * #415 change pom.xml * #415 update pom.xml * #415 change some code smell * #415 change some code smell * #415 update test * #415 add javadoc * #415 remove author tag * #415 add lombok @AllArgsConstructor * #415 fix code converge * #415 fix code converge * #415 fix code converge * #415 add javadoc * #415 fix code smell * #415 fix code smell * #415 add log information * #415 remove unused import * #415 add javadoc and more test * #415 modify test * #415 fix checkstyle * #415 remove useless code and add more javadoc and test. * #415 add package-info.java. * #415 add package-info.java. * #415 add more test. * #415 fix code smell. * #415 fix code smell and increase code coverage. * #415 fix code smell. * #415 update README.md * #415 update README.md * #415 make this demo better * #415 satisfy checkstyle * #415 make some field static. * #415 make some fields static. * #415 rename some fields static. * Delete package-info.java Co-authored-by: Subhrodip Mohanta <subhrodipmohanta@gmail.com>	2021-05-11 19:16:11 +05:30
VR	1388e38744	docs: Correcting the URL to fix #1747 (#1748 ) * Correcting the Hyperlink to redirect to the correct URL. Corresponds to bug #1703 * Deleting the extra Hyphen(-) that was incorrectly added. * Corrected the contributors inside the Readme file. Updated the correct number of contributors to be in sync with `master` Co-authored-by: Subhrodip Mohanta <hello@subho.xyz>	2021-05-11 16:30:30 +05:30
allcontributors[bot]	1dd26289e5	docs: add JackieNim as a contributor (#1749 ) * docs: update README.md [skip ci] * docs: update .all-contributorsrc [skip ci] Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>	2021-05-09 17:00:47 +03:00
allcontributors[bot]	241a7ad9a2	docs: add DEV-VRUPER as a contributor (#1746 ) * docs: update README.md [skip ci] * docs: update .all-contributorsrc [skip ci] Co-authored-by: Subhrodip Mohanta <hello@subho.xyz> Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>	2021-05-07 00:01:23 +05:30
VR	32b33480dd	docs: Correcting the Hyperlink to redirect to correct URL. (#1745 ) Corresponds to bug #1703 Co-authored-by: Subhrodip Mohanta <hello@subho.xyz>	2021-05-06 23:55:29 +05:30
余林颖	068fa0371e	docs: Translate some of the README docs into Chinese (#1744 ) * docs: translated docs to zh * docs: translated doc of sharding pattern to Chinese * docs: translated doc of factory pattern to Chinese * docs: translated doc of factory-kit pattern to Chinese Co-authored-by: Subhrodip Mohanta <hello@subho.xyz>	2021-05-06 23:27:16 +05:30
余林颖	b5aaa94794	docs: replace more suitable translation (#1743 ) Co-authored-by: Subhrodip Mohanta <hello@subho.xyz>	2021-05-03 20:25:57 +05:30
余林颖	825b5a9a29	docs: translated the async method invocation pattern into Chinese (#1741 )	2021-05-02 20:34:34 +03:00
Subhrodip Mohanta	31890f67e6	updated with neccessary changes (#1709 )	2021-05-01 21:22:35 +03:00
dependabot-preview[bot]	41b1462eed	[Security] Bump spring-webmvc from 5.0.13.RELEASE to 5.0.17.RELEASE (#1739 ) Bumps [spring-webmvc](https://github.com/spring-projects/spring-framework) from 5.0.13.RELEASE to 5.0.17.RELEASE. This update includes a security fix. - [Release notes](https://github.com/spring-projects/spring-framework/releases) - [Commits](https://github.com/spring-projects/spring-framework/compare/v5.0.13.RELEASE...v5.0.17.RELEASE) Signed-off-by: dependabot-preview[bot] <support@dependabot.com> Co-authored-by: Subhrodip Mohanta <hello@subho.xyz> Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>	2021-05-01 10:29:50 +05:30
dependabot-preview[bot]	276549d156	[Security] Bump jackson.version from 2.10.2 to 2.12.3 (#1738 ) Bumps `jackson.version` from 2.10.2 to 2.12.3. Updates `jackson-core` from 2.10.2 to 2.12.3 - [Release notes](https://github.com/FasterXML/jackson-core/releases) - [Commits](https://github.com/FasterXML/jackson-core/compare/jackson-core-2.10.2...jackson-core-2.12.3) Updates `jackson-databind` from 2.10.2 to 2.12.3 - [Release notes](https://github.com/FasterXML/jackson/releases) - [Commits](https://github.com/FasterXML/jackson/commits) Updates `jackson-annotations` from 2.10.2 to 2.12.3 - [Release notes](https://github.com/FasterXML/jackson/releases) - [Commits](https://github.com/FasterXML/jackson/commits) Signed-off-by: dependabot-preview[bot] <support@dependabot.com> Co-authored-by: Subhrodip Mohanta <hello@subho.xyz> Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>	2021-05-01 10:29:05 +05:30
allcontributors[bot]	d67b625a74	docs: add STudio26 as a contributor (#1735 ) * docs: update README.md [skip ci] * docs: update .all-contributorsrc [skip ci] Co-authored-by: Subhrodip Mohanta <hello@subho.xyz> Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>	2021-04-29 18:55:41 +05:30
Alain	1b14ebcbb1	Improve french translation, fix some typographic issues. (#1730 ) * Improve french translation, fix some typographic issues. * Improve french translation. Co-authored-by: Subhrodip Mohanta <hello@subho.xyz>	2021-04-29 18:54:03 +05:30
余林颖	a471ce25da	translated the balking pattern into Chinese (#1727 ) Co-authored-by: Subhrodip Mohanta <hello@subho.xyz>	2021-04-29 18:51:14 +05:30
allcontributors[bot]	74caa0c4e5	docs: add Al-assad as a contributor (#1733 ) * docs: update README.md [skip ci] * docs: update .all-contributorsrc [skip ci] Co-authored-by: Subhrodip Mohanta <hello@subho.xyz> Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>	2021-04-29 18:49:45 +05:30
余林颖	53a294fee5	translated the business delegate pattern into Chinese (#1728 ) Co-authored-by: Subhrodip Mohanta <hello@subho.xyz>	2021-04-29 18:47:40 +05:30
dependabot-preview[bot]	a5062908c0	[Security] Bump commons-io from 2.6 to 2.7 (#1731 ) Bumps commons-io from 2.6 to 2.7. This update includes a security fix. Signed-off-by: dependabot-preview[bot] <support@dependabot.com> Co-authored-by: Subhrodip Mohanta <hello@subho.xyz> Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>	2021-04-29 18:39:54 +05:30
dependabot[bot]	076310bb79	Bump commons-io from 2.6 to 2.7 (#1729 ) Bumps commons-io from 2.6 to 2.7. Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: Subhrodip Mohanta <hello@subho.xyz> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2021-04-27 13:36:24 +05:30
Kevin Lee	470d29e715	docs: Translated the strategy pattern into Korean (#1708 ) * Correct README.md in Korean Spelling correction and human-readable paraphrase on ko/README.md. Previously, it was translated using a machine translator. * Add strategy pattern into Korean Add and translate the strategy pattern into Korean. * Remove source file from the translated folder Co-authored-by: Subhrodip Mohanta <hello@subho.xyz>	2021-04-26 14:46:15 +05:30
allcontributors[bot]	74802e83b5	docs: add zWeBrain as a contributor (#1725 ) * docs: update README.md [skip ci] * docs: update .all-contributorsrc [skip ci] Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com> Co-authored-by: Subhrodip Mohanta <hello@subho.xyz>	2021-04-26 13:48:16 +05:30
zWeBrain	09b577f634	task: Add Composite Entity pattern (#1705 ) * add composite entity pattern * add composite entity pattern * Update ReactorTest.java * resolve some code quality problems * modified a lot * remove some extra codes * modified README * removed the author name and adjusted the spacing Co-authored-by: zwebrain <11811721@mail.sustech.edu.cn> Co-authored-by: Subhrodip Mohanta <hello@subho.xyz>	2021-04-26 13:45:52 +05:30
Mike Liu	2fce2e44e2	docs: Chinese translations updates (#1706 ) * add state and callback pattern * add command and template-method pattern * add iterator pattern * add bridege and DI pattern * fix issue #1600 * add converter,proxy,visitor pattern * add caching,composite,delegation,dirty-flag,interpreter patterns * add dao and producer-consumer * add dto and provate class data pattern * fix #1646 png path problems * fix #1646 composite png path case problem * add abstract document pattern and version-number pattern * add ambassador pattern * add acyclic-visitor and api-gateway pattern * add abstract-factory pattern * add active-object pattern * add aggregator-microservices and arrange-act-assert pattern Co-authored-by: Mike <admin@xiaod.info> Co-authored-by: Subhrodip Mohanta <hello@subho.xyz> Co-authored-by: Ilkka Seppälä <iluwatar@users.noreply.github.com>	2021-04-26 13:28:01 +05:30
allcontributors[bot]	b3a1749bd0	docs: add eas5 as a contributor (#1711 ) * docs: update README.md [skip ci] * docs: update .all-contributorsrc [skip ci] Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com> Co-authored-by: Subhrodip Mohanta <hello@subho.xyz>	2021-04-26 13:06:33 +05:30
Elvys Soares	af0ccdc6e1	refactoring: Added parameterization to enumeration test (#1698 ) Signed-off-by: Elvys Soares <eas5@cin.ufpe.br> Co-authored-by: Subhrodip Mohanta <hello@subho.xyz>	2021-04-22 11:47:45 +05:30
Subhrodip Mohanta	323dd63e66	update distribution for java to 'adpot' (#1699 )	2021-04-18 12:53:19 +03:00
Ilkka Seppälä	be3250bd0d	Set version for the next development iteration	2021-04-05 14:57:36 +03:00
Ilkka Seppälä	1222f12b99	Set version number for milestone 1.24.0	2021-04-05 14:56:36 +03:00
allcontributors[bot]	965d38f139	docs: add ohbus as a contributor (#1695 ) * docs: update README.md [skip ci] * docs: update .all-contributorsrc [skip ci] Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com> Co-authored-by: Ilkka Seppälä <iluwatar@users.noreply.github.com>	2021-03-28 18:20:04 +03:00
Ilkka Seppälä	eb8f9db575	#590 add explanation for caching pattern (#1693 ) Co-authored-by: Subhrodip Mohanta <hello@subho.xyz>	2021-03-28 16:32:29 +05:30
Subhrodip Mohanta	6d7084f18d	remove labelling trigger (#1692 )	2021-03-28 10:15:42 +03:00
allcontributors[bot]	74f5cfa670	docs: add jinishavora as a contributor (#1688 ) * docs: update README.md [skip ci] * docs: update .all-contributorsrc [skip ci] Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com> Co-authored-by: Subhrodip Mohanta <subhrodipmohanta@gmail.com>	2021-03-23 14:12:32 +05:30
Ilkka Seppälä	b525d871b4	docs: Fix mvvm readme (#1689 )	2021-03-23 11:29:20 +05:30
Ilkka Seppälä	c413e0902e	docs: #590 add explanation for bytecode pattern (#1687 ) Type: docs and refactoring Co-authored-by: Subhrodip Mohanta <hello@subho.xyz>	2021-03-22 12:19:46 +05:30
Ilkka Seppälä	7ac468db20	docs: #590 refactor and add explanation for business delegate (#1686 ) Type: docs and refactoring Co-authored-by: Subhrodip Mohanta <hello@subho.xyz>	2021-03-22 12:04:56 +05:30
jinishavora	794795acf5	task: MVVM design pattern using zkoss framework. (#1678 ) * MVVM design pattern using zkoss framework. * MVVM Design pattern updates for issues reported by SonarCloud. * MVVM Design pattern updates for coverage issues reported by SonarCloud. * MVVM Design pattern updates for coverage issues (removing lombok @Data) reported by SonarCloud. * MVVM Design pattern updates for coverage issues reported by Sonar - TEST cases added for Equals and ToString * MVVM Design Pattern - updating missing/todo details. * MVVM Design Pattern - adding lombok.config * MVVM Design Pattern - Removing xml, updating pom.xml and README as per suggested changes in code review * Update model-view-viewmodel/README.md * Update model-view-viewmodel/README.md * Update model-view-viewmodel/README.md * Update model-view-viewmodel/README.md * MVVM Design Pattern - Updated pom.xml and Readme based on Suggested changes * added type as xml * MVVM Design Patterm - root pom.xml and module pom.xml updated * Update pom.xml Co-authored-by: Subhrodip Mohanta <hello@subho.xyz> Co-authored-by: Ilkka Seppälä <iluwatar@users.noreply.github.com>	2021-03-22 11:43:34 +05:30
Ilkka Seppälä	2b7d181ac4	docs: add explanation for balking pattern (#1685 ) * #590 explanation for balking pattern * #590 fix checkstyle error Co-authored-by: Subhrodip Mohanta <hello@subho.xyz>	2021-03-21 01:25:47 +05:30
Subhrodip Mohanta	b5ed8b2278	labeling PR should trigger builds again for all-contributors bot (#1682 )	2021-03-18 22:22:37 +02:00
allcontributors[bot]	8fc64a2d38	docs: add qfxl as a contributor (#1681 ) * docs: update README.md [skip ci] * docs: update .all-contributorsrc [skip ci] Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>	2021-03-18 22:13:28 +02:00
Ilkka Seppälä	7e91322a43	Add explanation to Async Method Invocation pattern (#1680 ) * #590 make the example more interesting and add an explanation * #590 fix checkstyle Co-authored-by: Subhrodip Mohanta <hello@subho.xyz>	2021-03-18 11:07:34 +05:30