Merge pull request #1 from iluwatar/master

Update my local repository
2016-12-14 08:52:22 +01:00 · 2016-12-14 08:52:22 +01:00 · aeefc11f25
commit aeefc11f25
parent e1ae1067db c94c8a3e74
1117 changed files with 8279 additions and 5403 deletions
--- a/.gitignore
+++ b/.gitignore
@ -1,19 +1,19 @@
-target
-.metadata
-.settings
-.classpath
-.project
-*.class
-# Package Files #
-*.jar
-*.war
-*.ear
-.idea
-*.iml
-*.swp
+target
+.metadata
+.settings
+.classpath
+.project
+*.class
+# Package Files #
+*.jar
+*.war
+*.ear
+.idea
+*.iml
+*.swp
 datanucleus.log
 /bin/
 /bin/
 /bin/
-
-data-mapper/src/main/resources/log4j.xml
+*.log
+data-mapper/src/main/resources/log4j.xml
--- a/_scripts/postPumlsToServer.py
+++ b/_scripts/postPumlsToServer.py
@ -1,6 +1,6 @@
 #
 # The MIT License
-# Copyright (c) 2014 Ilkka Seppälä
+# Copyright (c) 2014-2016 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
--- a/abstract-document/etc/abstract-document.urm.puml
+++ b/abstract-document/etc/abstract-document.urm.puml
@ -1,33 +1,29 @@
@startuml
 package com.iluwatar.abstractdocument.domain {
-  class Part {
-    + Part(properties : Map<String, Object>)
-  }
-  interface HasPrice {
-    + PROPERTY : String {static}
-    + getPrice() : Optional<Number>
-  }
-  interface HasParts {
-    + PROPERTY : String {static}
-    + getParts() : Stream<Part>
-  }
  class Car {
    + Car(properties : Map<String, Object>)
  }
-  interface HasType {
-    + PROPERTY : String {static}
-    + getType() : Optional<String>
-  }
  interface HasModel {
    + PROPERTY : String {static}
    + getModel() : Optional<String>
  }
+  interface HasParts {
+    + PROPERTY : String {static}
+    + getParts() : Stream<Part>
+  }
+  interface HasPrice {
+    + PROPERTY : String {static}
+    + getPrice() : Optional<Number>
+  }
+  interface HasType {
+    + PROPERTY : String {static}
+    + getType() : Optional<String>
+  }
+  class Part {
+    + Part(properties : Map<String, Object>)
+  }
 }
 package com.iluwatar.abstractdocument {
-  class App {
-    + App()
-    + main(args : String[]) {static}
-  }
  abstract class AbstractDocument {
    - properties : Map<String, Object>
    # AbstractDocument(properties : Map<String, Object>)
@ -36,24 +32,28 @@ package com.iluwatar.abstractdocument {
    + put(key : String, value : Object)
    + toString() : String
  }
+  class App {
+    - LOGGER : Logger {static}
+    + App()
+    + main(args : String[]) {static}
+  }
  interface Document {
    + children(String, Function<Map<String, Object>, T>) : Stream<T> {abstract}
    + get(String) : Object {abstract}
    + put(String, Object) {abstract}
  }
 }
-AbstractDocument --+ Map
-Part ..|> HasType 
-Part ..|> HasModel 
-Part ..|> HasPrice 
-Part --|> AbstractDocument 
 AbstractDocument ..|> Document 
-HasPrice --|> Document 
-HasParts --|> Document 
 Car ..|> HasModel 
 Car ..|> HasPrice 
 Car ..|> HasParts 
 Car --|> AbstractDocument 
-HasType --|> Document 
 HasModel --|> Document 
+HasParts --|> Document 
+HasPrice --|> Document 
+HasType --|> Document 
+Part ..|> HasType 
+Part ..|> HasModel 
+Part ..|> HasPrice 
+Part --|> AbstractDocument 
@enduml
--- a/abstract-document/pom.xml
+++ b/abstract-document/pom.xml
@ -2,7 +2,7 @@
 <!--

    The MIT License
-    Copyright (c) 2014 Ilkka Seppälä
+    Copyright (c) 2014-2016 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
--- a/abstract-document/src/main/java/com/iluwatar/abstractdocument/AbstractDocument.java
+++ b/abstract-document/src/main/java/com/iluwatar/abstractdocument/AbstractDocument.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 Ilkka Seppälä
 * <p>
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
--- a/abstract-document/src/main/java/com/iluwatar/abstractdocument/App.java
+++ b/abstract-document/src/main/java/com/iluwatar/abstractdocument/App.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 Ilkka Seppälä
 * <p>
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
@ -27,6 +27,8 @@ import com.iluwatar.abstractdocument.domain.HasModel;
 import com.iluwatar.abstractdocument.domain.HasParts;
 import com.iluwatar.abstractdocument.domain.HasPrice;
 import com.iluwatar.abstractdocument.domain.HasType;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;

 import java.util.Arrays;
 import java.util.HashMap;
@ -44,11 +46,13 @@ import java.util.Map;
 */
 public class App {

+  private static final Logger LOGGER = LoggerFactory.getLogger(App.class);
+
  /**
   * Executes the App
   */
  public App() {
-    System.out.println("Constructing parts and car");
+    LOGGER.info("Constructing parts and car");

    Map<String, Object> carProperties = new HashMap<>();
    carProperties.put(HasModel.PROPERTY, "300SL");
@ -68,12 +72,11 @@ public class App {

    Car car = new Car(carProperties);

-    System.out.println("Here is our car:");
-    System.out.println("-> model: " + car.getModel().get());
-    System.out.println("-> price: " + car.getPrice().get());
-    System.out.println("-> parts: ");
-    car.getParts().forEach(p -> System.out
-        .println("\t" + p.getType().get() + "/" + p.getModel().get() + "/" + p.getPrice().get()));
+    LOGGER.info("Here is our car:");
+    LOGGER.info("-> model: {}", car.getModel().get());
+    LOGGER.info("-> price: {}", car.getPrice().get());
+    LOGGER.info("-> parts: ");
+    car.getParts().forEach(p -> LOGGER.info("\t{}/{}/{}", p.getType().get(), p.getModel().get(), p.getPrice().get()));
  }

  /**
--- a/abstract-document/src/main/java/com/iluwatar/abstractdocument/Document.java
+++ b/abstract-document/src/main/java/com/iluwatar/abstractdocument/Document.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 Ilkka Seppälä
 * <p>
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
--- a/abstract-document/src/main/java/com/iluwatar/abstractdocument/domain/Car.java
+++ b/abstract-document/src/main/java/com/iluwatar/abstractdocument/domain/Car.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 Ilkka Seppälä
 * <p>
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
--- a/abstract-document/src/main/java/com/iluwatar/abstractdocument/domain/HasModel.java
+++ b/abstract-document/src/main/java/com/iluwatar/abstractdocument/domain/HasModel.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 Ilkka Seppälä
 * <p>
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
--- a/abstract-document/src/main/java/com/iluwatar/abstractdocument/domain/HasParts.java
+++ b/abstract-document/src/main/java/com/iluwatar/abstractdocument/domain/HasParts.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 Ilkka Seppälä
 * <p>
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
--- a/abstract-document/src/main/java/com/iluwatar/abstractdocument/domain/HasPrice.java
+++ b/abstract-document/src/main/java/com/iluwatar/abstractdocument/domain/HasPrice.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 Ilkka Seppälä
 * <p>
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
--- a/abstract-document/src/main/java/com/iluwatar/abstractdocument/domain/HasType.java
+++ b/abstract-document/src/main/java/com/iluwatar/abstractdocument/domain/HasType.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 Ilkka Seppälä
 * <p>
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
--- a/abstract-document/src/main/java/com/iluwatar/abstractdocument/domain/Part.java
+++ b/abstract-document/src/main/java/com/iluwatar/abstractdocument/domain/Part.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 Ilkka Seppälä
 * <p>
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
--- a/abstract-document/src/test/java/com/iluwatar/abstractdocument/AbstractDocumentTest.java
+++ b/abstract-document/src/test/java/com/iluwatar/abstractdocument/AbstractDocumentTest.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 Ilkka Seppälä
 * <p>
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
--- a/abstract-document/src/test/java/com/iluwatar/abstractdocument/AppTest.java
+++ b/abstract-document/src/test/java/com/iluwatar/abstractdocument/AppTest.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 Ilkka Seppälä
 * <p>
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
--- a/abstract-document/src/test/java/com/iluwatar/abstractdocument/DomainTest.java
+++ b/abstract-document/src/test/java/com/iluwatar/abstractdocument/DomainTest.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 Ilkka Seppälä
 * <p>
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
--- a/abstract-factory/etc/abstract-factory.urm.puml
+++ b/abstract-factory/etc/abstract-factory.urm.puml
@ -1,6 +1,7 @@
@startuml
 package com.iluwatar.abstractfactory {
  class App {
+    - LOGGER : Logger {static}
    - army : Army
    - castle : Castle
    - king : King
@ -17,58 +18,58 @@ package com.iluwatar.abstractfactory {
    - setCastle(castle : Castle)
    - setKing(king : King)
  }
-  class OrcKingdomFactory {
-    + OrcKingdomFactory()
-    + createArmy() : Army
-    + createCastle() : Castle
-    + createKing() : King
+  interface Army {
+    + getDescription() : String {abstract}
+  }
+  interface Castle {
+    + getDescription() : String {abstract}
+  }
+  class ElfArmy {
+    ~ DESCRIPTION : String {static}
+    + ElfArmy()
+    + getDescription() : String
  }
  class ElfCastle {
    ~ DESCRIPTION : String {static}
    + ElfCastle()
    + getDescription() : String
  }
+  class ElfKing {
+    ~ DESCRIPTION : String {static}
+    + ElfKing()
+    + getDescription() : String
+  }
+  class ElfKingdomFactory {
+    + ElfKingdomFactory()
+    + createArmy() : Army
+    + createCastle() : Castle
+    + createKing() : King
+  }
+  interface King {
+    + getDescription() : String {abstract}
+  }
+  interface KingdomFactory {
+    + createArmy() : Army {abstract}
+    + createCastle() : Castle {abstract}
+    + createKing() : King {abstract}
+  }
+  class OrcArmy {
+    ~ DESCRIPTION : String {static}
+    + OrcArmy()
+    + getDescription() : String
+  }
  class OrcCastle {
    ~ DESCRIPTION : String {static}
    + OrcCastle()
    + getDescription() : String
  }
-  interface KingdomFactory {
-    + createArmy() : Army {abstract}
-    + createCastle() : Castle {abstract}
-    + createKing() : King {abstract}
-  }
-  class ElfKing {
-    ~ DESCRIPTION : String {static}
-    + ElfKing()
-    + getDescription() : String
-  }
-  class ElfArmy {
-    ~ DESCRIPTION : String {static}
-    + ElfArmy()
-    + getDescription() : String
-  }
-  interface Castle {
-    + getDescription() : String {abstract}
-  }
-  interface Army {
-    + getDescription() : String {abstract}
-  }
  class OrcKing {
    ~ DESCRIPTION : String {static}
    + OrcKing()
    + getDescription() : String
  }
-  class OrcArmy {
-    ~ DESCRIPTION : String {static}
-    + OrcArmy()
-    + getDescription() : String
-  }
-  interface King {
-    + getDescription() : String {abstract}
-  }
-  class ElfKingdomFactory {
-    + ElfKingdomFactory()
+  class OrcKingdomFactory {
+    + OrcKingdomFactory()
    + createArmy() : Army
    + createCastle() : Castle
    + createKing() : King
@ -77,12 +78,12 @@ package com.iluwatar.abstractfactory {
 App -->  "-castle" Castle
 App -->  "-king" King
 App -->  "-army" Army
-OrcKingdomFactory ..|> KingdomFactory 
-ElfCastle ..|> Castle 
-OrcCastle ..|> Castle 
-ElfKing ..|> King 
 ElfArmy ..|> Army 
-OrcKing ..|> King 
-OrcArmy ..|> Army 
+ElfCastle ..|> Castle 
+ElfKing ..|> King 
 ElfKingdomFactory ..|> KingdomFactory 
+OrcArmy ..|> Army 
+OrcCastle ..|> Castle 
+OrcKing ..|> King 
+OrcKingdomFactory ..|> KingdomFactory 
@enduml
--- a/abstract-factory/pom.xml
+++ b/abstract-factory/pom.xml
@ -2,7 +2,7 @@
 <!--

    The MIT License
-    Copyright (c) 2014 Ilkka Seppälä
+    Copyright (c) 2014-2016 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
--- a/abstract-factory/src/main/java/com/iluwatar/abstractfactory/App.java
+++ b/abstract-factory/src/main/java/com/iluwatar/abstractfactory/App.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
@ -22,6 +22,9 @@
 */
 package com.iluwatar.abstractfactory;

+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 /**
 * 
 * The Abstract Factory pattern provides a way to encapsulate a group of individual factories that have a common theme
@ -39,6 +42,8 @@ package com.iluwatar.abstractfactory;
 */
 public class App {

+  private static final Logger LOGGER = LoggerFactory.getLogger(App.class);
+
  private King king;
  private Castle castle;
  private Army army;
@ -98,17 +103,17 @@ public class App {

    App app = new App();

-    System.out.println("Elf Kingdom");
+    LOGGER.info("Elf Kingdom");
    app.createKingdom(new ElfKingdomFactory());
-    System.out.println(app.getArmy().getDescription());
-    System.out.println(app.getCastle().getDescription());
-    System.out.println(app.getKing().getDescription());
+    LOGGER.info(app.getArmy().getDescription());
+    LOGGER.info(app.getCastle().getDescription());
+    LOGGER.info(app.getKing().getDescription());

-    System.out.println("\nOrc Kingdom");
+    LOGGER.info("Orc Kingdom");
    app.createKingdom(new OrcKingdomFactory());
-    System.out.println(app.getArmy().getDescription());
-    System.out.println(app.getCastle().getDescription());
-    System.out.println(app.getKing().getDescription());
+    LOGGER.info(app.getArmy().getDescription());
+    LOGGER.info(app.getCastle().getDescription());
+    LOGGER.info(app.getKing().getDescription());

  }

--- a/abstract-factory/src/main/java/com/iluwatar/abstractfactory/Army.java
+++ b/abstract-factory/src/main/java/com/iluwatar/abstractfactory/Army.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/abstract-factory/src/main/java/com/iluwatar/abstractfactory/Castle.java
+++ b/abstract-factory/src/main/java/com/iluwatar/abstractfactory/Castle.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/abstract-factory/src/main/java/com/iluwatar/abstractfactory/ElfArmy.java
+++ b/abstract-factory/src/main/java/com/iluwatar/abstractfactory/ElfArmy.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/abstract-factory/src/main/java/com/iluwatar/abstractfactory/ElfCastle.java
+++ b/abstract-factory/src/main/java/com/iluwatar/abstractfactory/ElfCastle.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/abstract-factory/src/main/java/com/iluwatar/abstractfactory/ElfKing.java
+++ b/abstract-factory/src/main/java/com/iluwatar/abstractfactory/ElfKing.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/abstract-factory/src/main/java/com/iluwatar/abstractfactory/ElfKingdomFactory.java
+++ b/abstract-factory/src/main/java/com/iluwatar/abstractfactory/ElfKingdomFactory.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/abstract-factory/src/main/java/com/iluwatar/abstractfactory/King.java
+++ b/abstract-factory/src/main/java/com/iluwatar/abstractfactory/King.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/abstract-factory/src/main/java/com/iluwatar/abstractfactory/KingdomFactory.java
+++ b/abstract-factory/src/main/java/com/iluwatar/abstractfactory/KingdomFactory.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/abstract-factory/src/main/java/com/iluwatar/abstractfactory/OrcArmy.java
+++ b/abstract-factory/src/main/java/com/iluwatar/abstractfactory/OrcArmy.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/abstract-factory/src/main/java/com/iluwatar/abstractfactory/OrcCastle.java
+++ b/abstract-factory/src/main/java/com/iluwatar/abstractfactory/OrcCastle.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/abstract-factory/src/main/java/com/iluwatar/abstractfactory/OrcKing.java
+++ b/abstract-factory/src/main/java/com/iluwatar/abstractfactory/OrcKing.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/abstract-factory/src/main/java/com/iluwatar/abstractfactory/OrcKingdomFactory.java
+++ b/abstract-factory/src/main/java/com/iluwatar/abstractfactory/OrcKingdomFactory.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/abstract-factory/src/test/java/com/iluwatar/abstractfactory/AbstractFactoryTest.java
+++ b/abstract-factory/src/test/java/com/iluwatar/abstractfactory/AbstractFactoryTest.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/abstract-factory/src/test/java/com/iluwatar/abstractfactory/AppTest.java
+++ b/abstract-factory/src/test/java/com/iluwatar/abstractfactory/AppTest.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/adapter/etc/adapter.urm.puml
+++ b/adapter/etc/adapter.urm.puml
@ -1,18 +1,19 @@
@startuml
 package com.iluwatar.adapter {
-  interface BattleShip {
-    + fire() {abstract}
-    + move() {abstract}
+  class App {
+    + App()
+    + main(args : String[]) {static}
  }
  class BattleFishingBoat {
+    - LOGGER : Logger {static}
    - boat : FishingBoat
    + BattleFishingBoat()
    + fire()
    + move()
  }
-  class App {
-    + App()
-    + main(args : String[]) {static}
+  interface BattleShip {
+    + fire() {abstract}
+    + move() {abstract}
  }
  class Captain {
    - battleship : BattleShip
@ -23,6 +24,7 @@ package com.iluwatar.adapter {
    + setBattleship(battleship : BattleShip)
  }
  class FishingBoat {
+    - LOGGER : Logger {static}
    + FishingBoat()
    + fish()
    + sail()
--- a/adapter/pom.xml
+++ b/adapter/pom.xml
@ -2,7 +2,7 @@
 <!--

    The MIT License
-    Copyright (c) 2014 Ilkka Seppälä
+    Copyright (c) 2014-2016 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
--- a/adapter/src/main/java/com/iluwatar/adapter/App.java
+++ b/adapter/src/main/java/com/iluwatar/adapter/App.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/adapter/src/main/java/com/iluwatar/adapter/BattleFishingBoat.java
+++ b/adapter/src/main/java/com/iluwatar/adapter/BattleFishingBoat.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
@ -22,6 +22,9 @@
 */
 package com.iluwatar.adapter;

+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 /**
 *
 * Adapter class. Adapts the interface of the device ({@link FishingBoat}) into {@link BattleShip}
@ -33,6 +36,8 @@ package com.iluwatar.adapter;
 */
 public class BattleFishingBoat implements BattleShip {

+  private static final Logger LOGGER = LoggerFactory.getLogger(BattleFishingBoat.class);
+
  private FishingBoat boat;

  public BattleFishingBoat() {
@ -41,7 +46,7 @@ public class BattleFishingBoat implements BattleShip {

  @Override
  public void fire() {
-    System.out.println("fire!");
+    LOGGER.info("fire!");
  }

  @Override
--- a/adapter/src/main/java/com/iluwatar/adapter/BattleShip.java
+++ b/adapter/src/main/java/com/iluwatar/adapter/BattleShip.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/adapter/src/main/java/com/iluwatar/adapter/Captain.java
+++ b/adapter/src/main/java/com/iluwatar/adapter/Captain.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/adapter/src/main/java/com/iluwatar/adapter/FishingBoat.java
+++ b/adapter/src/main/java/com/iluwatar/adapter/FishingBoat.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
@ -22,6 +22,9 @@
 */
 package com.iluwatar.adapter;

+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 /**
 *
 * Device class (adaptee in the pattern). We want to reuse this class
@ -29,12 +32,14 @@ package com.iluwatar.adapter;
 */
 public class FishingBoat {

+  private static final Logger LOGGER = LoggerFactory.getLogger(FishingBoat.class);
+
  public void sail() {
-    System.out.println("The Boat is moving to that place");
+    LOGGER.info("The Boat is moving to that place");
  }

  public void fish() {
-    System.out.println("fishing ...");
+    LOGGER.info("fishing ...");
  }

 }
--- a/adapter/src/test/java/com/iluwatar/adapter/AdapterPatternTest.java
+++ b/adapter/src/test/java/com/iluwatar/adapter/AdapterPatternTest.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/adapter/src/test/java/com/iluwatar/adapter/AppTest.java
+++ b/adapter/src/test/java/com/iluwatar/adapter/AppTest.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/aggregator-microservices/aggregator-service/pom.xml
+++ b/aggregator-microservices/aggregator-service/pom.xml
@ -2,7 +2,7 @@
 <!--

    The MIT License
-    Copyright (c) 2014 Ilkka Seppälä
+    Copyright (c) 2014-2016 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
--- a/aggregator-microservices/aggregator-service/src/main/java/com/iluwatar/aggregator/microservices/Aggregator.java
+++ b/aggregator-microservices/aggregator-service/src/main/java/com/iluwatar/aggregator/microservices/Aggregator.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 Ilkka Seppälä
 * <p/>
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
--- a/aggregator-microservices/aggregator-service/src/main/java/com/iluwatar/aggregator/microservices/App.java
+++ b/aggregator-microservices/aggregator-service/src/main/java/com/iluwatar/aggregator/microservices/App.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 Ilkka Seppälä
 * <p/>
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
--- a/aggregator-microservices/aggregator-service/src/main/java/com/iluwatar/aggregator/microservices/Product.java
+++ b/aggregator-microservices/aggregator-service/src/main/java/com/iluwatar/aggregator/microservices/Product.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 Ilkka Seppälä
 * <p/>
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
--- a/aggregator-microservices/aggregator-service/src/main/java/com/iluwatar/aggregator/microservices/ProductInformationClient.java
+++ b/aggregator-microservices/aggregator-service/src/main/java/com/iluwatar/aggregator/microservices/ProductInformationClient.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 Ilkka Seppälä
 * <p/>
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
--- a/aggregator-microservices/aggregator-service/src/main/java/com/iluwatar/aggregator/microservices/ProductInformationClientImpl.java
+++ b/aggregator-microservices/aggregator-service/src/main/java/com/iluwatar/aggregator/microservices/ProductInformationClientImpl.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 Ilkka Seppälä
 * <p/>
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
@ -27,6 +27,8 @@ import org.apache.http.client.methods.HttpGet;
 import org.apache.http.impl.client.CloseableHttpClient;
 import org.apache.http.impl.client.HttpClients;
 import org.apache.http.util.EntityUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.stereotype.Component;

 import java.io.IOException;
@ -37,6 +39,8 @@ import java.io.IOException;
@Component
 public class ProductInformationClientImpl implements ProductInformationClient {

+  private static final Logger LOGGER = LoggerFactory.getLogger(ProductInformationClientImpl.class);
+
  @Override
  public String getProductTitle() {
    String response = null;
@ -46,7 +50,7 @@ public class ProductInformationClientImpl implements ProductInformationClient {
        response = EntityUtils.toString(httpResponse.getEntity());
      }
    } catch (IOException e) {
-      e.printStackTrace();
+      LOGGER.error("Exception caught.", e);
    }
    return response;
  }
--- a/aggregator-microservices/aggregator-service/src/main/java/com/iluwatar/aggregator/microservices/ProductInventoryClient.java
+++ b/aggregator-microservices/aggregator-service/src/main/java/com/iluwatar/aggregator/microservices/ProductInventoryClient.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 Ilkka Seppälä
 * <p/>
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
--- a/aggregator-microservices/aggregator-service/src/main/java/com/iluwatar/aggregator/microservices/ProductInventoryClientImpl.java
+++ b/aggregator-microservices/aggregator-service/src/main/java/com/iluwatar/aggregator/microservices/ProductInventoryClientImpl.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 Ilkka Seppälä
 * <p/>
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
@ -27,6 +27,8 @@ import org.apache.http.client.methods.HttpGet;
 import org.apache.http.impl.client.CloseableHttpClient;
 import org.apache.http.impl.client.HttpClients;
 import org.apache.http.util.EntityUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.stereotype.Component;

 import java.io.IOException;
@ -37,6 +39,8 @@ import java.io.IOException;
@Component
 public class ProductInventoryClientImpl implements ProductInventoryClient {

+  private static final Logger LOGGER = LoggerFactory.getLogger(ProductInventoryClientImpl.class);
+
  @Override
  public int getProductInventories() {
    String response = "0";
@ -46,7 +50,7 @@ public class ProductInventoryClientImpl implements ProductInventoryClient {
        response = EntityUtils.toString(httpResponse.getEntity());
      }
    } catch (IOException e) {
-      e.printStackTrace();
+      LOGGER.error("Exception caught.", e);
    }
    return Integer.parseInt(response);
  }
--- a/aggregator-microservices/aggregator-service/src/main/resources/application.properties
+++ b/aggregator-microservices/aggregator-service/src/main/resources/application.properties
@ -1,6 +1,6 @@
 #
 # The MIT License
-# Copyright (c) 2014 Ilkka Seppälä
+# Copyright (c) 2014-2016 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
--- a/aggregator-microservices/aggregator-service/src/test/java/com/iluwatar/aggregator/microservices/AggregatorTest.java
+++ b/aggregator-microservices/aggregator-service/src/test/java/com/iluwatar/aggregator/microservices/AggregatorTest.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 Ilkka Seppälä
 * <p/>
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
--- a/aggregator-microservices/etc/aggregator-service.urm.puml
+++ b/aggregator-microservices/etc/aggregator-service.urm.puml
@ -1,16 +1,15 @@
@startuml
 package com.iluwatar.aggregator.microservices {
-  class ProductInventoryClientImpl {
-    + ProductInventoryClientImpl()
-    + getProductInventories() : int
+  class Aggregator {
+    - informationClient : ProductInformationClient
+    - inventoryClient : ProductInventoryClient
+    + Aggregator()
+    + getProduct() : Product
  }
  class App {
    + App()
    + main(args : String[]) {static}
  }
-  interface ProductInventoryClient {
-    + getProductInventories() : int {abstract}
-  }
  class Product {
    - productInventories : int
    - title : String
@ -20,22 +19,25 @@ package com.iluwatar.aggregator.microservices {
    + setProductInventories(productInventories : int)
    + setTitle(title : String)
  }
-  class Aggregator {
-    - informationClient : ProductInformationClient
-    - inventoryClient : ProductInventoryClient
-    + Aggregator()
-    + getProduct() : Product
-  }
-  class ProductInformationClientImpl {
-    + ProductInformationClientImpl()
-    + getProductTitle() : String
-  }
  interface ProductInformationClient {
    + getProductTitle() : String {abstract}
  }
+  class ProductInformationClientImpl {
+    - LOGGER : Logger {static}
+    + ProductInformationClientImpl()
+    + getProductTitle() : String
+  }
+  interface ProductInventoryClient {
+    + getProductInventories() : int {abstract}
+  }
+  class ProductInventoryClientImpl {
+    - LOGGER : Logger {static}
+    + ProductInventoryClientImpl()
+    + getProductInventories() : int
+  }
 }
-Aggregator -->  "-inventoryClient" ProductInventoryClient
 Aggregator -->  "-informationClient" ProductInformationClient
-ProductInventoryClientImpl ..|> ProductInventoryClient 
+Aggregator -->  "-inventoryClient" ProductInventoryClient
 ProductInformationClientImpl ..|> ProductInformationClient 
+ProductInventoryClientImpl ..|> ProductInventoryClient 
@enduml
--- a/aggregator-microservices/etc/inventory-microservice.urm.puml
+++ b/aggregator-microservices/etc/inventory-microservice.urm.puml
@ -1,12 +1,12 @@
@startuml
 package com.iluwatar.inventory.microservice {
-  class InventoryController {
-    + InventoryController()
-    + getProductInventories() : int
-  }
  class InventoryApplication {
    + InventoryApplication()
    + main(args : String[]) {static}
  }
+  class InventoryController {
+    + InventoryController()
+    + getProductInventories() : int
+  }
 }
@enduml
--- a/aggregator-microservices/information-microservice/pom.xml
+++ b/aggregator-microservices/information-microservice/pom.xml
@ -2,7 +2,7 @@
 <!--

    The MIT License
-    Copyright (c) 2014 Ilkka Seppälä
+    Copyright (c) 2014-2016 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
--- a/aggregator-microservices/information-microservice/src/main/java/com/iluwatar/information/microservice/InformationApplication.java
+++ b/aggregator-microservices/information-microservice/src/main/java/com/iluwatar/information/microservice/InformationApplication.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 Ilkka Seppälä
 * <p/>
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
--- a/aggregator-microservices/information-microservice/src/main/java/com/iluwatar/information/microservice/InformationController.java
+++ b/aggregator-microservices/information-microservice/src/main/java/com/iluwatar/information/microservice/InformationController.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 Ilkka Seppälä
 * <p/>
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
--- a/aggregator-microservices/information-microservice/src/main/resources/application.properties
+++ b/aggregator-microservices/information-microservice/src/main/resources/application.properties
@ -1,6 +1,6 @@
 #
 # The MIT License
-# Copyright (c) 2014 Ilkka Seppälä
+# Copyright (c) 2014-2016 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
--- a/aggregator-microservices/information-microservice/src/test/java/com/iluwatar/information/microservice/InformationControllerTest.java
+++ b/aggregator-microservices/information-microservice/src/test/java/com/iluwatar/information/microservice/InformationControllerTest.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 Ilkka Seppälä
 * <p/>
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
--- a/aggregator-microservices/inventory-microservice/pom.xml
+++ b/aggregator-microservices/inventory-microservice/pom.xml
@ -2,7 +2,7 @@
 <!--

    The MIT License
-    Copyright (c) 2014 Ilkka Seppälä
+    Copyright (c) 2014-2016 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
--- a/aggregator-microservices/inventory-microservice/src/main/java/com/iluwatar/inventory/microservice/InventoryApplication.java
+++ b/aggregator-microservices/inventory-microservice/src/main/java/com/iluwatar/inventory/microservice/InventoryApplication.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 Ilkka Seppälä
 * <p/>
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
--- a/aggregator-microservices/inventory-microservice/src/main/java/com/iluwatar/inventory/microservice/InventoryController.java
+++ b/aggregator-microservices/inventory-microservice/src/main/java/com/iluwatar/inventory/microservice/InventoryController.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 Ilkka Seppälä
 * <p/>
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
--- a/aggregator-microservices/inventory-microservice/src/main/resources/application.properties
+++ b/aggregator-microservices/inventory-microservice/src/main/resources/application.properties
@ -1,6 +1,6 @@
 #
 # The MIT License
-# Copyright (c) 2014 Ilkka Seppälä
+# Copyright (c) 2014-2016 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
--- a/aggregator-microservices/inventory-microservice/src/test/java/com/iluwatar/inventory/microservice/InventoryControllerTest.java
+++ b/aggregator-microservices/inventory-microservice/src/test/java/com/iluwatar/inventory/microservice/InventoryControllerTest.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 Ilkka Seppälä
 * <p/>
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
--- a/aggregator-microservices/pom.xml
+++ b/aggregator-microservices/pom.xml
@ -2,7 +2,7 @@
 <!--

    The MIT License
-    Copyright (c) 2014 Ilkka Seppälä
+    Copyright (c) 2014-2016 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
--- a/api-gateway/api-gateway-service/pom.xml
+++ b/api-gateway/api-gateway-service/pom.xml
@ -2,7 +2,7 @@
 <!--

    The MIT License
-    Copyright (c) 2014 Ilkka Seppälä
+    Copyright (c) 2014-2016 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
--- a/api-gateway/api-gateway-service/src/main/java/com/iluwatar/api/gateway/ApiGateway.java
+++ b/api-gateway/api-gateway-service/src/main/java/com/iluwatar/api/gateway/ApiGateway.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/api-gateway/api-gateway-service/src/main/java/com/iluwatar/api/gateway/App.java
+++ b/api-gateway/api-gateway-service/src/main/java/com/iluwatar/api/gateway/App.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/api-gateway/api-gateway-service/src/main/java/com/iluwatar/api/gateway/DesktopProduct.java
+++ b/api-gateway/api-gateway-service/src/main/java/com/iluwatar/api/gateway/DesktopProduct.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/api-gateway/api-gateway-service/src/main/java/com/iluwatar/api/gateway/ImageClient.java
+++ b/api-gateway/api-gateway-service/src/main/java/com/iluwatar/api/gateway/ImageClient.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/api-gateway/api-gateway-service/src/main/java/com/iluwatar/api/gateway/ImageClientImpl.java
+++ b/api-gateway/api-gateway-service/src/main/java/com/iluwatar/api/gateway/ImageClientImpl.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/api-gateway/api-gateway-service/src/main/java/com/iluwatar/api/gateway/MobileProduct.java
+++ b/api-gateway/api-gateway-service/src/main/java/com/iluwatar/api/gateway/MobileProduct.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/api-gateway/api-gateway-service/src/main/java/com/iluwatar/api/gateway/PriceClient.java
+++ b/api-gateway/api-gateway-service/src/main/java/com/iluwatar/api/gateway/PriceClient.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/api-gateway/api-gateway-service/src/main/java/com/iluwatar/api/gateway/PriceClientImpl.java
+++ b/api-gateway/api-gateway-service/src/main/java/com/iluwatar/api/gateway/PriceClientImpl.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/api-gateway/api-gateway-service/src/main/resources/application.properties
+++ b/api-gateway/api-gateway-service/src/main/resources/application.properties
@ -1,6 +1,6 @@
 #
 # The MIT License
-# Copyright (c) 2014 Ilkka Seppälä
+# Copyright (c) 2014-2016 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
--- a/api-gateway/api-gateway-service/src/test/java/com/iluwatar/api/gateway/ApiGatewayTest.java
+++ b/api-gateway/api-gateway-service/src/test/java/com/iluwatar/api/gateway/ApiGatewayTest.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/api-gateway/etc/api-gateway-service.urm.puml
+++ b/api-gateway/etc/api-gateway-service.urm.puml
@ -1,12 +1,27 @@
@startuml
 package com.iluwatar.api.gateway {
+  class ApiGateway {
+    - imageClient : ImageClient
+    - priceClient : PriceClient
+    + ApiGateway()
+    + getProductDesktop() : DesktopProduct
+    + getProductMobile() : MobileProduct
+  }
  class App {
    + App()
    + main(args : String[]) {static}
  }
-  class PriceClientImpl {
-    + PriceClientImpl()
+  class DesktopProduct {
+    - imagePath : String
+    - price : String
+    + DesktopProduct()
+    + getImagePath() : String
    + getPrice() : String
+    + setImagePath(imagePath : String)
+    + setPrice(price : String)
+  }
+  interface ImageClient {
+    + getImagePath() : String {abstract}
  }
  class ImageClientImpl {
    + ImageClientImpl()
@ -18,31 +33,16 @@ package com.iluwatar.api.gateway {
    + getPrice() : String
    + setPrice(price : String)
  }
-  interface ImageClient {
-    + getImagePath() : String {abstract}
-  }
-  class ApiGateway {
-    - imageClient : ImageClient
-    - priceClient : PriceClient
-    + ApiGateway()
-    + getProductDesktop() : DesktopProduct
-    + getProductMobile() : MobileProduct
-  }
-  class DesktopProduct {
-    - imagePath : String
-    - price : String
-    + DesktopProduct()
-    + getImagePath() : String
-    + getPrice() : String
-    + setImagePath(imagePath : String)
-    + setPrice(price : String)
-  }
  interface PriceClient {
    + getPrice() : String {abstract}
  }
+  class PriceClientImpl {
+    + PriceClientImpl()
+    + getPrice() : String
+  }
 }
 ApiGateway -->  "-imageClient" ImageClient
 ApiGateway -->  "-priceClient" PriceClient
-PriceClientImpl ..|> PriceClient 
 ImageClientImpl ..|> ImageClient 
+PriceClientImpl ..|> PriceClient 
@enduml
--- a/api-gateway/image-microservice/pom.xml
+++ b/api-gateway/image-microservice/pom.xml
@ -2,7 +2,7 @@
 <!--

    The MIT License
-    Copyright (c) 2014 Ilkka Seppälä
+    Copyright (c) 2014-2016 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
--- a/api-gateway/image-microservice/src/main/java/com/iluwatar/image/microservice/ImageApplication.java
+++ b/api-gateway/image-microservice/src/main/java/com/iluwatar/image/microservice/ImageApplication.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/api-gateway/image-microservice/src/main/java/com/iluwatar/image/microservice/ImageController.java
+++ b/api-gateway/image-microservice/src/main/java/com/iluwatar/image/microservice/ImageController.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/api-gateway/image-microservice/src/main/resources/application.properties
+++ b/api-gateway/image-microservice/src/main/resources/application.properties
@ -1,6 +1,6 @@
 #
 # The MIT License
-# Copyright (c) 2014 Ilkka Seppälä
+# Copyright (c) 2014-2016 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
--- a/api-gateway/image-microservice/src/test/java/com/iluwatar/image/microservice/ImageControllerTest.java
+++ b/api-gateway/image-microservice/src/test/java/com/iluwatar/image/microservice/ImageControllerTest.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/api-gateway/pom.xml
+++ b/api-gateway/pom.xml
@ -2,7 +2,7 @@
 <!--

    The MIT License
-    Copyright (c) 2014 Ilkka Seppälä
+    Copyright (c) 2014-2016 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
--- a/api-gateway/price-microservice/pom.xml
+++ b/api-gateway/price-microservice/pom.xml
@ -2,7 +2,7 @@
 <!--

    The MIT License
-    Copyright (c) 2014 Ilkka Seppälä
+    Copyright (c) 2014-2016 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
--- a/api-gateway/price-microservice/src/main/java/com/iluwatar/price/microservice/PriceApplication.java
+++ b/api-gateway/price-microservice/src/main/java/com/iluwatar/price/microservice/PriceApplication.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/api-gateway/price-microservice/src/main/java/com/iluwatar/price/microservice/PriceController.java
+++ b/api-gateway/price-microservice/src/main/java/com/iluwatar/price/microservice/PriceController.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/api-gateway/price-microservice/src/main/resources/application.properties
+++ b/api-gateway/price-microservice/src/main/resources/application.properties
@ -1,6 +1,6 @@
 #
 # The MIT License
-# Copyright (c) 2014 Ilkka Seppälä
+# Copyright (c) 2014-2016 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
--- a/api-gateway/price-microservice/src/test/java/com/iluwatar/price/microservice/PriceControllerTest.java
+++ b/api-gateway/price-microservice/src/test/java/com/iluwatar/price/microservice/PriceControllerTest.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/async-method-invocation/etc/async-method-invocation.urm.puml
+++ b/async-method-invocation/etc/async-method-invocation.urm.puml
@ -1,22 +1,26 @@
@startuml
 package com.iluwatar.async.method.invocation {
  class App {
+    - LOGGER : Logger {static}
    + App()
    - callback(name : String) : AsyncCallback<T> {static}
    - lazyval(value : T, delayMillis : long) : Callable<T> {static}
    - log(msg : String) {static}
    + main(args : String[]) {static}
  }
-  interface AsyncResult<T> {
-    + await() {abstract}
-    + getValue() : T {abstract}
-    + isCompleted() : boolean {abstract}
+  interface AsyncCallback<T> {
+    + onComplete(T, Optional<Exception>) {abstract}
  }
  interface AsyncExecutor {
    + endProcess(AsyncResult<T>) : T {abstract}
    + startProcess(Callable<T>) : AsyncResult<T> {abstract}
    + startProcess(Callable<T>, AsyncCallback<T>) : AsyncResult<T> {abstract}
  }
+  interface AsyncResult<T> {
+    + await() {abstract}
+    + getValue() : T {abstract}
+    + isCompleted() : boolean {abstract}
+  }
  class ThreadAsyncExecutor {
    - idx : AtomicInteger
    + ThreadAsyncExecutor()
@ -24,9 +28,6 @@ package com.iluwatar.async.method.invocation {
    + startProcess(task : Callable<T>) : AsyncResult<T>
    + startProcess(task : Callable<T>, callback : AsyncCallback<T>) : AsyncResult<T>
  }
-  interface AsyncCallback<T> {
-    + onComplete(T, Optional<Exception>) {abstract}
-  }
  -class CompletableResult<T> {
    ~ COMPLETED : int {static}
    ~ FAILED : int {static}
--- a/async-method-invocation/pom.xml
+++ b/async-method-invocation/pom.xml
@ -2,7 +2,7 @@
 <!--

    The MIT License
-    Copyright (c) 2014 Ilkka Seppälä
+    Copyright (c) 2014-2016 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
--- 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
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
@ -22,6 +22,9 @@
 */
 package com.iluwatar.async.method.invocation;

+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import java.util.concurrent.Callable;

 /**
@ -54,6 +57,8 @@ import java.util.concurrent.Callable;
 */
 public class App {

+  private static final Logger LOGGER = LoggerFactory.getLogger(App.class);
+
  /**
   * Program entry point
   */
@ -120,6 +125,6 @@ public class App {
  }

  private static void log(String msg) {
-    System.out.println(String.format("[%1$-10s] - %2$s", Thread.currentThread().getName(), msg));
+    LOGGER.info(msg);
  }
 }
--- a/async-method-invocation/src/main/java/com/iluwatar/async/method/invocation/AsyncCallback.java
+++ b/async-method-invocation/src/main/java/com/iluwatar/async/method/invocation/AsyncCallback.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/async-method-invocation/src/main/java/com/iluwatar/async/method/invocation/AsyncExecutor.java
+++ b/async-method-invocation/src/main/java/com/iluwatar/async/method/invocation/AsyncExecutor.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/async-method-invocation/src/main/java/com/iluwatar/async/method/invocation/AsyncResult.java
+++ b/async-method-invocation/src/main/java/com/iluwatar/async/method/invocation/AsyncResult.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/async-method-invocation/src/main/java/com/iluwatar/async/method/invocation/ThreadAsyncExecutor.java
+++ b/async-method-invocation/src/main/java/com/iluwatar/async/method/invocation/ThreadAsyncExecutor.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/async-method-invocation/src/test/java/com/iluwatar/async/method/invocation/AppTest.java
+++ b/async-method-invocation/src/test/java/com/iluwatar/async/method/invocation/AppTest.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/async-method-invocation/src/test/java/com/iluwatar/async/method/invocation/ThreadAsyncExecutorTest.java
+++ b/async-method-invocation/src/test/java/com/iluwatar/async/method/invocation/ThreadAsyncExecutorTest.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/bridge/etc/bridge.urm.puml
+++ b/bridge/etc/bridge.urm.puml
@ -1,72 +1,9 @@
@startuml
 package com.iluwatar.bridge {
-  class FlyingMagicWeapon {
-    + FlyingMagicWeapon(imp : FlyingMagicWeaponImpl)
-    + fly()
-    + getImp() : FlyingMagicWeaponImpl
-    + swing()
-    + unwield()
-    + wield()
-  }
-  class Stormbringer {
-    + Stormbringer()
-    + eatSoulImp()
-    + swingImp()
-    + unwieldImp()
-    + wieldImp()
-  }
-  abstract class FlyingMagicWeaponImpl {
-    + FlyingMagicWeaponImpl()
-    + flyImp() {abstract}
-  }
-  class SoulEatingMagicWeapon {
-    + SoulEatingMagicWeapon(imp : SoulEatingMagicWeaponImpl)
-    + eatSoul()
-    + getImp() : SoulEatingMagicWeaponImpl
-    + swing()
-    + unwield()
-    + wield()
-  }
-  abstract class MagicWeaponImpl {
-    + MagicWeaponImpl()
-    + swingImp() {abstract}
-    + unwieldImp() {abstract}
-    + wieldImp() {abstract}
-  }
-  abstract class SoulEatingMagicWeaponImpl {
-    + SoulEatingMagicWeaponImpl()
-    + eatSoulImp() {abstract}
-  }
-  class Excalibur {
-    + Excalibur()
-    + blindImp()
-    + swingImp()
-    + unwieldImp()
-    + wieldImp()
-  }
-  class Mjollnir {
-    + Mjollnir()
-    + flyImp()
-    + swingImp()
-    + unwieldImp()
-    + wieldImp()
-  }
  class App {
    + App()
    + main(args : String[]) {static}
  }
-  abstract class MagicWeapon {
-    # imp : MagicWeaponImpl
-    + MagicWeapon(imp : MagicWeaponImpl)
-    + getImp() : MagicWeaponImpl
-    + swing() {abstract}
-    + unwield() {abstract}
-    + wield() {abstract}
-  }
-  abstract class BlindingMagicWeaponImpl {
-    + BlindingMagicWeaponImpl()
-    + blindImp() {abstract}
-  }
  class BlindingMagicWeapon {
    + BlindingMagicWeapon(imp : BlindingMagicWeaponImpl)
    + blind()
@ -75,15 +12,81 @@ package com.iluwatar.bridge {
    + unwield()
    + wield()
  }
+  abstract class BlindingMagicWeaponImpl {
+    + BlindingMagicWeaponImpl()
+    + blindImp() {abstract}
+  }
+  class Excalibur {
+    - LOGGER : Logger {static}
+    + Excalibur()
+    + blindImp()
+    + swingImp()
+    + unwieldImp()
+    + wieldImp()
+  }
+  class FlyingMagicWeapon {
+    + FlyingMagicWeapon(imp : FlyingMagicWeaponImpl)
+    + fly()
+    + getImp() : FlyingMagicWeaponImpl
+    + swing()
+    + unwield()
+    + wield()
+  }
+  abstract class FlyingMagicWeaponImpl {
+    + FlyingMagicWeaponImpl()
+    + flyImp() {abstract}
+  }
+  abstract class MagicWeapon {
+    # imp : MagicWeaponImpl
+    + MagicWeapon(imp : MagicWeaponImpl)
+    + getImp() : MagicWeaponImpl
+    + swing() {abstract}
+    + unwield() {abstract}
+    + wield() {abstract}
+  }
+  abstract class MagicWeaponImpl {
+    + MagicWeaponImpl()
+    + swingImp() {abstract}
+    + unwieldImp() {abstract}
+    + wieldImp() {abstract}
+  }
+  class Mjollnir {
+    - LOGGER : Logger {static}
+    + Mjollnir()
+    + flyImp()
+    + swingImp()
+    + unwieldImp()
+    + wieldImp()
+  }
+  class SoulEatingMagicWeapon {
+    + SoulEatingMagicWeapon(imp : SoulEatingMagicWeaponImpl)
+    + eatSoul()
+    + getImp() : SoulEatingMagicWeaponImpl
+    + swing()
+    + unwield()
+    + wield()
+  }
+  abstract class SoulEatingMagicWeaponImpl {
+    + SoulEatingMagicWeaponImpl()
+    + eatSoulImp() {abstract}
+  }
+  class Stormbringer {
+    - LOGGER : Logger {static}
+    + Stormbringer()
+    + eatSoulImp()
+    + swingImp()
+    + unwieldImp()
+    + wieldImp()
+  }
 }
 MagicWeapon -->  "-imp" MagicWeaponImpl
+BlindingMagicWeapon --|> MagicWeapon 
+BlindingMagicWeaponImpl --|> MagicWeaponImpl 
+Excalibur --|> BlindingMagicWeaponImpl 
 FlyingMagicWeapon --|> MagicWeapon 
-Stormbringer --|> SoulEatingMagicWeaponImpl 
 FlyingMagicWeaponImpl --|> MagicWeaponImpl 
+Mjollnir --|> FlyingMagicWeaponImpl 
 SoulEatingMagicWeapon --|> MagicWeapon 
 SoulEatingMagicWeaponImpl --|> MagicWeaponImpl 
-Excalibur --|> BlindingMagicWeaponImpl 
-Mjollnir --|> FlyingMagicWeaponImpl 
-BlindingMagicWeaponImpl --|> MagicWeaponImpl 
-BlindingMagicWeapon --|> MagicWeapon 
+Stormbringer --|> SoulEatingMagicWeaponImpl 
@enduml
--- a/bridge/pom.xml
+++ b/bridge/pom.xml
@ -2,7 +2,7 @@
 <!--

    The MIT License
-    Copyright (c) 2014 Ilkka Seppälä
+    Copyright (c) 2014-2016 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
--- a/bridge/src/main/java/com/iluwatar/bridge/App.java
+++ b/bridge/src/main/java/com/iluwatar/bridge/App.java
@ -1,6 +1,6 @@
 /**
 * The MIT License
- * Copyright (c) 2014 Ilkka Seppälä
+ * Copyright (c) 2014-2016 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
--- a/Show More
+++ b/Show More