gaspersic/java-design-patterns
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

📍Use lombok, reformat, and optimize the code (#1560)

Browse Source 
* Use lombok, reformat, and optimize the code

* Fix merge conflicts and some sonar issues

Co-authored-by: va1m <va1m@email.com>
This commit is contained in:
va1m 2021-03-13 13:19:21 +01:00 committed by GitHub
parent 0e26a6adb5
commit 5cf2fe009b
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
681 changed files with 2472 additions and 4966 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
abstract-document/src/main/java/com/iluwatar/abstractdocument/App.java
View File

@ -27,8 +27,7 @@ import com.iluwatar.abstractdocument.domain.Car;
import com.iluwatar.abstractdocument.domain.enums.Property;
import java.util.List;
import java.util.Map;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.extern.slf4j.Slf4j;
/**
* The Abstract Document pattern enables handling additional, non-static properties. This pattern
@ -38,10 +37,9 @@ import org.slf4j.LoggerFactory;
* <p>In Abstract Document pattern,({@link AbstractDocument}) fully implements {@link Document})
* interface. Traits are then defined to enable access to properties in usual, static way.
*/
@Slf4j
public class App {
private static final Logger LOGGER = LoggerFactory.getLogger(App.class);
/**
* Program entry point.
*

17
abstract-document/src/test/java/com/iluwatar/abstractdocument/AbstractDocumentTest.java
View File

@ -23,19 +23,18 @@
package com.iluwatar.abstractdocument;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertTrue;
import org.junit.jupiter.api.Test;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.*;
/**
* AbstractDocument test class
*/
public class AbstractDocumentTest {
class AbstractDocumentTest {
private static final String KEY = "key";
private static final String VALUE = "value";
@ -50,13 +49,13 @@ public class AbstractDocumentTest {
private final DocumentImplementation document = new DocumentImplementation(new HashMap<>());
@Test
public void shouldPutAndGetValue() {
void shouldPutAndGetValue() {
document.put(KEY, VALUE);
assertEquals(VALUE, document.get(KEY));
}
@Test
public void shouldRetrieveChildren() {
void shouldRetrieveChildren() {
var children = List.of(Map.of(), Map.of());
document.put(KEY, children);
@ -67,14 +66,14 @@ public class AbstractDocumentTest {
}
@Test
public void shouldRetrieveEmptyStreamForNonExistingChildren() {
void shouldRetrieveEmptyStreamForNonExistingChildren() {
var children = document.children(KEY, DocumentImplementation::new);
assertNotNull(children);
assertEquals(0, children.count());
}
@Test
public void shouldIncludePropsInToString() {
void shouldIncludePropsInToString() {
var props = Map.of(KEY, (Object) VALUE);
var document = new DocumentImplementation(props);
assertTrue(document.toString().contains(KEY));

13
abstract-document/src/test/java/com/iluwatar/abstractdocument/DomainTest.java
View File

@ -23,19 +23,20 @@
package com.iluwatar.abstractdocument;
import static org.junit.jupiter.api.Assertions.assertEquals;
import com.iluwatar.abstractdocument.domain.Car;
import com.iluwatar.abstractdocument.domain.Part;
import com.iluwatar.abstractdocument.domain.enums.Property;
import org.junit.jupiter.api.Test;
import java.util.List;
import java.util.Map;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertEquals;
/**
* Test for Part and Car
*/
public class DomainTest {
class DomainTest {
private static final String TEST_PART_TYPE = "test-part-type";
private static final String TEST_PART_MODEL = "test-part-model";
@ -45,7 +46,7 @@ public class DomainTest {
private static final long TEST_CAR_PRICE = 1L;
@Test
public void shouldConstructPart() {
void shouldConstructPart() {
var partProperties = Map.of(
Property.TYPE.toString(), TEST_PART_TYPE,
Property.MODEL.toString(), TEST_PART_MODEL,
@ -58,7 +59,7 @@ public class DomainTest {
}
@Test
public void shouldConstructCar() {
void shouldConstructCar() {
var carProperties = Map.of(
Property.MODEL.toString(), TEST_CAR_MODEL,
Property.PRICE.toString(), TEST_CAR_PRICE,

22
abstract-factory/src/main/java/com/iluwatar/abstractfactory/App.java
View File

@ -23,8 +23,7 @@
package com.iluwatar.abstractfactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.extern.slf4j.Slf4j;
/**
* The Abstract Factory pattern provides a way to encapsulate a group of individual factories that
@ -40,10 +39,9 @@ import org.slf4j.LoggerFactory;
* and its implementations ( {@link ElfKingdomFactory}, {@link OrcKingdomFactory}). The example uses
* both concrete implementations to create a king, a castle and an army.
*/
@Slf4j
public class App implements Runnable {
private static Logger log = LoggerFactory.getLogger(App.class);
private final Kingdom kingdom = new Kingdom();
public Kingdom getKingdom() {
@ -62,17 +60,17 @@ public class App implements Runnable {
@Override
public void run() {
log.info("Elf Kingdom");
LOGGER.info("Elf Kingdom");
createKingdom(Kingdom.FactoryMaker.KingdomType.ELF);
log.info(kingdom.getArmy().getDescription());
log.info(kingdom.getCastle().getDescription());
log.info(kingdom.getKing().getDescription());
LOGGER.info(kingdom.getArmy().getDescription());
LOGGER.info(kingdom.getCastle().getDescription());
LOGGER.info(kingdom.getKing().getDescription());
log.info("Orc Kingdom");
LOGGER.info("Orc Kingdom");
createKingdom(Kingdom.FactoryMaker.KingdomType.ORC);
log.info(kingdom.getArmy().getDescription());
log.info(kingdom.getCastle().getDescription());
log.info(kingdom.getKing().getDescription());
LOGGER.info(kingdom.getArmy().getDescription());
LOGGER.info(kingdom.getCastle().getDescription());
LOGGER.info(kingdom.getKing().getDescription());
}
/**

29
abstract-factory/src/main/java/com/iluwatar/abstractfactory/Kingdom.java
View File

@ -23,36 +23,17 @@
package com.iluwatar.abstractfactory;
import lombok.Getter;
import lombok.Setter;
@Getter
@Setter
public class Kingdom {
private King king;
private Castle castle;
private Army army;
public King getKing() {
return king;
}
public Castle getCastle() {
return castle;
}
public Army getArmy() {
return army;
}
public void setKing(King king) {
this.king = king;
}
public void setCastle(Castle castle) {
this.castle = castle;
}
public void setArmy(Army army) {
this.army = army;
}
/**
* The factory of kingdom factories.
*/

12
abstract-factory/src/test/java/com/iluwatar/abstractfactory/AbstractFactoryTest.java
View File

@ -31,12 +31,12 @@ import static org.junit.jupiter.api.Assertions.assertTrue;
/**
* Test for abstract factory.
*/
public class AbstractFactoryTest {
class AbstractFactoryTest {
private final App app = new App();
@Test
public void king() {
void king() {
app.createKingdom(Kingdom.FactoryMaker.KingdomType.ELF);
final var kingdom = app.getKingdom();
@ -51,7 +51,7 @@ public class AbstractFactoryTest {
}
@Test
public void castle() {
void castle() {
app.createKingdom(Kingdom.FactoryMaker.KingdomType.ELF);
final var kingdom = app.getKingdom();
@ -66,7 +66,7 @@ public class AbstractFactoryTest {
}
@Test
public void army() {
void army() {
app.createKingdom(Kingdom.FactoryMaker.KingdomType.ELF);
final var kingdom = app.getKingdom();
@ -81,7 +81,7 @@ public class AbstractFactoryTest {
}
@Test
public void createElfKingdom() {
void createElfKingdom() {
app.createKingdom(Kingdom.FactoryMaker.KingdomType.ELF);
final var kingdom = app.getKingdom();
@ -97,7 +97,7 @@ public class AbstractFactoryTest {
}
@Test
public void createOrcKingdom() {
void createOrcKingdom() {
app.createKingdom(Kingdom.FactoryMaker.KingdomType.ORC);
final var kingdom = app.getKingdom();

6
acyclic-visitor/src/main/java/com/iluwatar/acyclicvisitor/ConfigureForDosVisitor.java
View File

@ -23,17 +23,15 @@
package com.iluwatar.acyclicvisitor;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.extern.slf4j.Slf4j;
/**
* ConfigureForDosVisitor class implements both zoom's and hayes' visit method for Dos
* manufacturer.
*/
@Slf4j
public class ConfigureForDosVisitor implements AllModemVisitor {
private static final Logger LOGGER = LoggerFactory.getLogger(ConfigureForDosVisitor.class);
@Override
public void visit(Hayes hayes) {
LOGGER.info(hayes + " used with Dos configurator.");

6
acyclic-visitor/src/main/java/com/iluwatar/acyclicvisitor/ConfigureForUnixVisitor.java
View File

@ -23,17 +23,15 @@
package com.iluwatar.acyclicvisitor;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.extern.slf4j.Slf4j;
/**
* ConfigureForUnixVisitor class implements zoom's visit method for Unix manufacturer, unlike
* traditional visitor pattern, this class may selectively implement visit for other modems.
*/
@Slf4j
public class ConfigureForUnixVisitor implements ZoomVisitor {
private static final Logger LOGGER = LoggerFactory.getLogger(ConfigureForUnixVisitor.class);
@Override
public void visit(Zoom zoom) {
LOGGER.info(zoom + " used with Unix configurator.");

6
acyclic-visitor/src/main/java/com/iluwatar/acyclicvisitor/Hayes.java
View File

@ -23,16 +23,14 @@
package com.iluwatar.acyclicvisitor;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.extern.slf4j.Slf4j;
/**
* Hayes class implements its accept method.
*/
@Slf4j
public class Hayes extends Modem {
private static final Logger LOGGER = LoggerFactory.getLogger(ConfigureForDosVisitor.class);
/**
* Accepts all visitors but honors only HayesVisitor.
*/

6
acyclic-visitor/src/main/java/com/iluwatar/acyclicvisitor/Zoom.java
View File

@ -23,16 +23,14 @@
package com.iluwatar.acyclicvisitor;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.extern.slf4j.Slf4j;
/**
* Zoom class implements its accept method.
*/
@Slf4j
public class Zoom extends Modem {
private static final Logger LOGGER = LoggerFactory.getLogger(ConfigureForDosVisitor.class);
/**
* Accepts all visitors but honors only ZoomVisitor.
*/

6
acyclic-visitor/src/test/java/com/iluwatar/acyclicvisitor/ConfigureForDosVisitorTest.java
View File

@ -35,12 +35,12 @@ import uk.org.lidalia.slf4jtest.TestLoggerFactory;
/**
* ConfigureForDosVisitor test class
*/
public class ConfigureForDosVisitorTest {
class ConfigureForDosVisitorTest {
private final TestLogger logger = TestLoggerFactory.getTestLogger(ConfigureForDosVisitor.class);
@Test
public void testVisitForZoom() {
void testVisitForZoom() {
var conDos = new ConfigureForDosVisitor();
var zoom = new Zoom();
@ -52,7 +52,7 @@ public class ConfigureForDosVisitorTest {
}
@Test
public void testVisitForHayes() {
void testVisitForHayes() {
var conDos = new ConfigureForDosVisitor();
var hayes = new Hayes();

15
acyclic-visitor/src/test/java/com/iluwatar/acyclicvisitor/ConfigureForUnixVisitorTest.java
View File

@ -23,20 +23,19 @@
package com.iluwatar.acyclicvisitor;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.Test;
import uk.org.lidalia.slf4jtest.TestLogger;
import uk.org.lidalia.slf4jtest.TestLoggerFactory;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.groups.Tuple.tuple;
import static uk.org.lidalia.slf4jext.Level.INFO;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.Test;
import uk.org.lidalia.slf4jtest.TestLogger;
import uk.org.lidalia.slf4jtest.TestLoggerFactory;
/**
* ConfigureForUnixVisitor test class
*/
public class ConfigureForUnixVisitorTest {
class ConfigureForUnixVisitorTest {
private static final TestLogger LOGGER = TestLoggerFactory.getTestLogger(ConfigureForUnixVisitor.class);
@ -46,7 +45,7 @@ public class ConfigureForUnixVisitorTest {
}
@Test
public void testVisitForZoom() {
void testVisitForZoom() {
var conUnix = new ConfigureForUnixVisitor();
var zoom = new Zoom();

16
acyclic-visitor/src/test/java/com/iluwatar/acyclicvisitor/HayesTest.java
View File

@ -23,29 +23,27 @@
package com.iluwatar.acyclicvisitor;
import static org.mockito.Matchers.eq;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.verifyZeroInteractions;
import org.junit.jupiter.api.Test;
import static org.mockito.Matchers.eq;
import static org.mockito.Mockito.*;
/**
* Hayes test class
*/
public class HayesTest {
class HayesTest {
@Test
public void testAcceptForDos() {
void testAcceptForDos() {
var hayes = new Hayes();
var mockVisitor = mock(ConfigureForDosVisitor.class);
hayes.accept(mockVisitor);
verify((HayesVisitor)mockVisitor).visit(eq(hayes));
verify((HayesVisitor) mockVisitor).visit(eq(hayes));
}
@Test
public void testAcceptForUnix() {
void testAcceptForUnix() {
var hayes = new Hayes();
var mockVisitor = mock(ConfigureForUnixVisitor.class);

18
acyclic-visitor/src/test/java/com/iluwatar/acyclicvisitor/ZoomTest.java
View File

@ -24,32 +24,32 @@
package com.iluwatar.acyclicvisitor;
import static org.mockito.Matchers.eq;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.mock;
import org.junit.jupiter.api.Test;
import static org.mockito.Matchers.eq;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
/**
* Zoom test class
*/
public class ZoomTest {
class ZoomTest {
@Test
public void testAcceptForDos() {
void testAcceptForDos() {
var zoom = new Zoom();
var mockVisitor = mock(ConfigureForDosVisitor.class);
zoom.accept(mockVisitor);
verify((ZoomVisitor)mockVisitor).visit(eq(zoom));
verify((ZoomVisitor) mockVisitor).visit(eq(zoom));
}
@Test
public void testAcceptForUnix() {
void testAcceptForUnix() {
var zoom = new Zoom();
var mockVisitor = mock(ConfigureForUnixVisitor.class);
zoom.accept(mockVisitor);
verify((ZoomVisitor)mockVisitor).visit(eq(zoom));
verify((ZoomVisitor) mockVisitor).visit(eq(zoom));
}
}

5
adapter/README.md
View File

@ -42,8 +42,8 @@ public interface RowingBoat {
void row();
}
@Slf4j
public class FishingBoat {
private static final Logger LOGGER = LoggerFactory.getLogger(FishingBoat.class);
public void sail() {
LOGGER.info("The fishing boat is sailing");
}
@ -70,10 +70,9 @@ public class Captain {
Now let's say the pirates are coming and our captain needs to escape but there is only fishing boat available. We need to create an adapter that allows the captain to operate the fishing boat with his rowing boat skills.
```java
@Slf4j
public class FishingBoatAdapter implements RowingBoat {
private static final Logger LOGGER = LoggerFactory.getLogger(FishingBoatAdapter.class);
private final FishingBoat boat;
public FishingBoatAdapter() {

18
adapter/src/main/java/com/iluwatar/adapter/Captain.java
View File

@ -23,24 +23,20 @@
package com.iluwatar.adapter;
import lombok.AllArgsConstructor;
import lombok.NoArgsConstructor;
import lombok.Setter;
/**
* The Captain uses {@link RowingBoat} to sail. <br> This is the client in the pattern.
*/
@Setter
@NoArgsConstructor
@AllArgsConstructor
public final class Captain {
private RowingBoat rowingBoat;
public Captain() {
}
public Captain(final RowingBoat boat) {
this.rowingBoat = boat;
}
void setRowingBoat(final RowingBoat boat) {
this.rowingBoat = boat;
}
void row() {
rowingBoat.row();
}

7
adapter/src/main/java/com/iluwatar/adapter/FishingBoat.java
View File

@ -23,18 +23,15 @@
package com.iluwatar.adapter;
import static org.slf4j.LoggerFactory.getLogger;
import org.slf4j.Logger;
import lombok.extern.slf4j.Slf4j;
/**
* Device class (adaptee in the pattern). We want to reuse this class. Fishing boat moves by
* sailing.
*/
@Slf4j
final class FishingBoat {
private static final Logger LOGGER = getLogger(FishingBoat.class);
void sail() {
LOGGER.info("The fishing boat is sailing");
}

6
adapter/src/main/java/com/iluwatar/adapter/FishingBoatAdapter.java
View File

@ -29,11 +29,7 @@ package com.iluwatar.adapter;
*/
public class FishingBoatAdapter implements RowingBoat {
private final FishingBoat boat;
public FishingBoatAdapter() {
boat = new FishingBoat();
}
private final FishingBoat boat = new FishingBoat();
public final void row() {
boat.sail();

13
adapter/src/test/java/com/iluwatar/adapter/AdapterPatternTest.java
View File

@ -23,18 +23,19 @@
package com.iluwatar.adapter;
import static org.mockito.Mockito.spy;
import static org.mockito.Mockito.verify;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import java.util.HashMap;
import java.util.Map;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import static org.mockito.Mockito.spy;
import static org.mockito.Mockito.verify;
/**
* Test class
*/
public class AdapterPatternTest {
class AdapterPatternTest {
private Map<String, Object> beans;
@ -64,7 +65,7 @@ public class AdapterPatternTest {
* by the client ({@link Captain} ).
*/
@Test
public void testAdapter() {
void testAdapter() {
var captain = (Captain) beans.get(ROWING_BEAN);
// when captain moves

7
aggregator-microservices/aggregator-service/src/main/java/com/iluwatar/aggregator/microservices/Aggregator.java
View File

@ -26,8 +26,7 @@ package com.iluwatar.aggregator.microservices;
import static java.util.Objects.requireNonNullElse;
import javax.annotation.Resource;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
/**
@ -37,20 +36,18 @@ import org.springframework.web.bind.annotation.RestController;
@RestController
public class Aggregator {
@Resource
private ProductInformationClient informationClient;
@Resource
private ProductInventoryClient inventoryClient;
/**
* Retrieves product data.
*
* @return a Product.
*/
@RequestMapping(path = "/product", method = RequestMethod.GET)
@GetMapping("/product")
public Product getProduct() {
var product = new Product();

21
aggregator-microservices/aggregator-service/src/main/java/com/iluwatar/aggregator/microservices/Product.java
View File

@ -23,9 +23,14 @@
package com.iluwatar.aggregator.microservices;
import lombok.Getter;
import lombok.Setter;
/**
* Encapsulates all the data for a Product that clients will request.
*/
@Getter
@Setter
public class Product {
/**
@ -39,20 +44,4 @@ public class Product {
*/
private int productInventories;
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public int getProductInventories() {
return productInventories;
}
public void setProductInventories(int productInventories) {
this.productInventories = productInventories;
}
}

7
aggregator-microservices/aggregator-service/src/main/java/com/iluwatar/aggregator/microservices/ProductInformationClientImpl.java
View File

@ -28,18 +28,16 @@ import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;
/**
* An adapter to communicate with information micro-service.
*/
@Slf4j
@Component
public class ProductInformationClientImpl implements ProductInformationClient {
private static final Logger LOGGER = LoggerFactory.getLogger(ProductInformationClientImpl.class);
@Override
public String getProductTitle() {
var request = HttpRequest.newBuilder()
@ -54,6 +52,7 @@ public class ProductInformationClientImpl implements ProductInformationClient {
LOGGER.error("IOException Occurred", ioe);
} catch (InterruptedException ie) {
LOGGER.error("InterruptedException Occurred", ie);
Thread.currentThread().interrupt();
}
return null;
}

7
aggregator-microservices/aggregator-service/src/main/java/com/iluwatar/aggregator/microservices/ProductInventoryClientImpl.java
View File

@ -28,18 +28,16 @@ import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;
/**
* An adapter to communicate with inventory micro-service.
*/
@Slf4j
@Component
public class ProductInventoryClientImpl implements ProductInventoryClient {
private static final Logger LOGGER = LoggerFactory.getLogger(ProductInventoryClientImpl.class);
@Override
public Integer getProductInventories() {
var response = "";
@ -56,6 +54,7 @@ public class ProductInventoryClientImpl implements ProductInventoryClient {
LOGGER.error("IOException Occurred", ioe);
} catch (InterruptedException ie) {
LOGGER.error("InterruptedException Occurred", ie);
Thread.currentThread().interrupt();
}
if ("".equalsIgnoreCase(response)) {
return null;

10
aggregator-microservices/aggregator-service/src/test/java/com/iluwatar/aggregator/microservices/AggregatorTest.java
View File

@ -23,19 +23,19 @@
package com.iluwatar.aggregator.microservices;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.mockito.Mockito.when;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.mockito.Mockito.when;
/**
* Test Aggregation of domain objects
*/
public class AggregatorTest {
class AggregatorTest {
@InjectMocks
private Aggregator aggregator;
@ -55,7 +55,7 @@ public class AggregatorTest {
* Tests getting the data for a desktop client
*/
@Test
public void testGetProduct() {
void testGetProduct() {
var title = "The Product Title.";
var inventories = 5;

5
aggregator-microservices/information-microservice/src/main/java/com/iluwatar/information/microservice/InformationController.java
View File

@ -23,8 +23,7 @@
package com.iluwatar.information.microservice;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
/**
@ -38,7 +37,7 @@ public class InformationController {
*
* @return product inventory.
*/
@RequestMapping(value = "/information", method = RequestMethod.GET)
@GetMapping("/information")
public String getProductTitle() {
return "The Product Title.";
}

8
aggregator-microservices/information-microservice/src/test/java/com/iluwatar/information/microservice/InformationControllerTest.java
View File

@ -23,17 +23,17 @@
package com.iluwatar.information.microservice;
import static org.junit.jupiter.api.Assertions.assertEquals;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertEquals;
/**
* Test for Information Rest Controller
*/
public class InformationControllerTest {
class InformationControllerTest {
@Test
public void shouldGetProductTitle() {
void shouldGetProductTitle() {
var infoController = new InformationController();
var title = infoController.getProductTitle();
assertEquals("The Product Title.", title);

5
aggregator-microservices/inventory-microservice/src/main/java/com/iluwatar/inventory/microservice/InventoryController.java
View File

@ -23,8 +23,7 @@
package com.iluwatar.inventory.microservice;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
/**
@ -38,7 +37,7 @@ public class InventoryController {
*
* @return product inventory.
*/
@RequestMapping(value = "/inventories", method = RequestMethod.GET)
@GetMapping("/inventories")
public int getProductInventories() {
return 5;
}

9
aggregator-microservices/inventory-microservice/src/test/java/com/iluwatar/inventory/microservice/InventoryControllerTest.java
View File

@ -23,16 +23,17 @@
package com.iluwatar.inventory.microservice;
import static org.junit.jupiter.api.Assertions.assertEquals;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertEquals;
/**
* Test Inventory Rest Controller
*/
public class InventoryControllerTest {
class InventoryControllerTest {
@Test
public void testGetProductInventories() {
void testGetProductInventories() {
var inventoryController = new InventoryController();
var numberOfInventories = inventoryController.getProductInventories();
assertEquals(5, numberOfInventories);

9
ambassador/README.md
View File

@ -48,9 +48,8 @@ interface RemoteServiceInterface {
A remote services represented as a singleton.
```java
@Slf4j
public class RemoteService implements RemoteServiceInterface {
private static final Logger LOGGER = LoggerFactory.getLogger(RemoteService.class);
private static RemoteService service = null;
static synchronized RemoteService getRemoteService() {
@ -80,9 +79,8 @@ public class RemoteService implements RemoteServiceInterface {
A service ambassador adding additional features such as logging, latency checks
```java
@Slf4j
public class ServiceAmbassador implements RemoteServiceInterface {
private static final Logger LOGGER = LoggerFactory.getLogger(ServiceAmbassador.class);
private static final int RETRIES = 3;
private static final int DELAY_MS = 3000;
@ -132,9 +130,8 @@ public class ServiceAmbassador implements RemoteServiceInterface {
A client has a local service ambassador used to interact with the remote service:
```java
@Slf4j
public class Client {
private static final Logger LOGGER = LoggerFactory.getLogger(Client.class);
private final ServiceAmbassador serviceAmbassador = new ServiceAmbassador();
long useService(int value) {

7
ambassador/src/main/java/com/iluwatar/ambassador/Client.java
View File

@ -23,20 +23,19 @@
package com.iluwatar.ambassador;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.extern.slf4j.Slf4j;
/**
* A simple Client.
*/
@Slf4j
public class Client {
private static final Logger LOGGER = LoggerFactory.getLogger(Client.class);
private final ServiceAmbassador serviceAmbassador = new ServiceAmbassador();
long useService(int value) {
var result = serviceAmbassador.doRemoteFunction(value);
LOGGER.info("Service result: " + result);
LOGGER.info("Service result: {}", result);
return result;
}
}

8
ambassador/src/main/java/com/iluwatar/ambassador/RemoteService.java
View File

@ -26,15 +26,14 @@ package com.iluwatar.ambassador;
import static java.lang.Thread.sleep;
import com.iluwatar.ambassador.util.RandomProvider;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.extern.slf4j.Slf4j;
/**
* A remote legacy application represented by a Singleton implementation.
*/
@Slf4j
public class RemoteService implements RemoteServiceInterface {
private static final int THRESHOLD = 200;
private static final Logger LOGGER = LoggerFactory.getLogger(RemoteService.class);
private static RemoteService service = null;
private final RandomProvider randomProvider;
@ -73,8 +72,9 @@ public class RemoteService implements RemoteServiceInterface {
sleep(waitTime);
} catch (InterruptedException e) {
LOGGER.error("Thread sleep state interrupted", e);
Thread.currentThread().interrupt();
}
return waitTime <= THRESHOLD ? value * 10
: RemoteServiceStatus.FAILURE.getRemoteServiceStatusValue();
: RemoteServiceStatus.FAILURE.getRemoteServiceStatusValue();
}
}

3
ambassador/src/main/java/com/iluwatar/ambassador/RemoteServiceStatus.java
View File

@ -33,8 +33,7 @@ package com.iluwatar.ambassador;
*/
public enum RemoteServiceStatus {
FAILURE(-1)
;
FAILURE(-1);
private final long remoteServiceStatusValue;

10
ambassador/src/main/java/com/iluwatar/ambassador/ServiceAmbassador.java
View File

@ -26,17 +26,16 @@ package com.iluwatar.ambassador;
import static com.iluwatar.ambassador.RemoteServiceStatus.FAILURE;
import static java.lang.Thread.sleep;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.extern.slf4j.Slf4j;
/**
* ServiceAmbassador provides an interface for a ({@link Client}) to access ({@link RemoteService}).
* The interface adds logging, latency testing and usage of the service in a safe way that will not
* add stress to the remote service when connectivity issues occur.
*/
@Slf4j
public class ServiceAmbassador implements RemoteServiceInterface {
private static final Logger LOGGER = LoggerFactory.getLogger(ServiceAmbassador.class);
private static final int RETRIES = 3;
private static final int DELAY_MS = 3000;
@ -53,7 +52,7 @@ public class ServiceAmbassador implements RemoteServiceInterface {
var result = RemoteService.getRemoteService().doRemoteFunction(value);
var timeTaken = System.currentTimeMillis() - startTime;
LOGGER.info("Time taken (ms): " + timeTaken);
LOGGER.info("Time taken (ms): {}", timeTaken);
return result;
}
@ -67,12 +66,13 @@ public class ServiceAmbassador implements RemoteServiceInterface {
}
if ((result = checkLatency(value)) == FAILURE.getRemoteServiceStatusValue()) {
LOGGER.info("Failed to reach remote: (" + (i + 1) + ")");
LOGGER.info("Failed to reach remote: ({})", i + 1);
retries++;
try {
sleep(DELAY_MS);
} catch (InterruptedException e) {
LOGGER.error("Thread sleep state interrupted", e);
Thread.currentThread().interrupt();
}
} else {
break;

7
api-gateway/api-gateway-service/src/main/java/com/iluwatar/api/gateway/ApiGateway.java
View File

@ -24,8 +24,7 @@
package com.iluwatar.api.gateway;
import javax.annotation.Resource;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
/**
@ -45,7 +44,7 @@ public class ApiGateway {
*
* @return Product information for clients on a desktop
*/
@RequestMapping(path = "/desktop", method = RequestMethod.GET)
@GetMapping("/desktop")
public DesktopProduct getProductDesktop() {
var desktopProduct = new DesktopProduct();
desktopProduct.setImagePath(imageClient.getImagePath());
@ -58,7 +57,7 @@ public class ApiGateway {
*
* @return Product information for clients on a mobile device
*/
@RequestMapping(path = "/mobile", method = RequestMethod.GET)
@GetMapping("/mobile")
public MobileProduct getProductMobile() {
var mobileProduct = new MobileProduct();
mobileProduct.setPrice(priceClient.getPrice());

21
api-gateway/api-gateway-service/src/main/java/com/iluwatar/api/gateway/DesktopProduct.java
View File

@ -23,10 +23,16 @@
package com.iluwatar.api.gateway;
import lombok.Getter;
import lombok.Setter;
/**
* Encapsulates all of the information that a desktop client needs to display a product.
*/
@Getter
@Setter
public class DesktopProduct {
/**
* The price of the product.
*/
@ -37,19 +43,4 @@ public class DesktopProduct {
*/
private String imagePath;
public String getPrice() {
return price;
}
public void setPrice(String price) {
this.price = price;
}
public String getImagePath() {
return imagePath;
}
public void setImagePath(String imagePath) {
this.imagePath = imagePath;
}
}

14
api-gateway/api-gateway-service/src/main/java/com/iluwatar/api/gateway/ImageClientImpl.java
View File

@ -23,24 +23,21 @@
package com.iluwatar.api.gateway;
import static org.slf4j.LoggerFactory.getLogger;
import java.io.IOException;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.net.http.HttpResponse.BodyHandlers;
import org.slf4j.Logger;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;
/**
* An adapter to communicate with the Image microservice.
*/
@Slf4j
@Component
public class ImageClientImpl implements ImageClient {
private static final Logger LOGGER = getLogger(ImageClientImpl.class);
/**
* Makes a simple HTTP Get request to the Image microservice.
@ -60,8 +57,11 @@ public class ImageClientImpl implements ImageClient {
var httpResponse = httpClient.send(httpGet, BodyHandlers.ofString());
logResponse(httpResponse);
return httpResponse.body();
} catch (IOException | InterruptedException e) {
LOGGER.error("Failure occurred while getting image path", e);
} catch (IOException ioe) {
LOGGER.error("Failure occurred while getting image path", ioe);
} catch (InterruptedException ie) {
LOGGER.error("Failure occurred while getting image path", ie);
Thread.currentThread().interrupt();
}
return null;

13
api-gateway/api-gateway-service/src/main/java/com/iluwatar/api/gateway/MobileProduct.java
View File

@ -23,20 +23,17 @@
package com.iluwatar.api.gateway;
import lombok.Getter;
import lombok.Setter;
/**
* Encapsulates all of the information that mobile client needs to display a product.
*/
@Getter
@Setter
public class MobileProduct {
/**
* The price of the product.
*/
private String price;
public String getPrice() {
return price;
}
public void setPrice(String price) {
this.price = price;
}
}

12
api-gateway/api-gateway-service/src/main/java/com/iluwatar/api/gateway/PriceClientImpl.java
View File

@ -23,25 +23,22 @@
package com.iluwatar.api.gateway;
import static org.slf4j.LoggerFactory.getLogger;
import java.io.IOException;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.net.http.HttpResponse.BodyHandlers;
import org.slf4j.Logger;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;
/**
* An adapter to communicate with the Price microservice.
*/
@Slf4j
@Component
public class PriceClientImpl implements PriceClient {
private static final Logger LOGGER = getLogger(PriceClientImpl.class);
/**
* Makes a simple HTTP Get request to the Price microservice.
@ -61,8 +58,11 @@ public class PriceClientImpl implements PriceClient {
var httpResponse = httpClient.send(httpGet, BodyHandlers.ofString());
logResponse(httpResponse);
return httpResponse.body();
} catch (IOException | InterruptedException e) {
} catch (IOException e) {
LOGGER.error("Failure occurred while getting price info", e);
} catch (InterruptedException e) {
LOGGER.error("Failure occurred while getting price info", e);
Thread.currentThread().interrupt();
}
return null;

6
api-gateway/api-gateway-service/src/test/java/com/iluwatar/api/gateway/ApiGatewayTest.java
View File

@ -35,7 +35,7 @@ import org.mockito.MockitoAnnotations;
/**
* Test API Gateway Pattern
*/
public class ApiGatewayTest {
class ApiGatewayTest {
@InjectMocks
private ApiGateway apiGateway;
@ -55,7 +55,7 @@ public class ApiGatewayTest {
* Tests getting the data for a desktop client
*/
@Test
public void testGetProductDesktop() {
void testGetProductDesktop() {
var imagePath = "/product-image.png";
var price = "20";
when(imageClient.getImagePath()).thenReturn(imagePath);
@ -71,7 +71,7 @@ public class ApiGatewayTest {
* Tests getting the data for a mobile client
*/
@Test
public void testGetProductMobile() {
void testGetProductMobile() {
var price = "20";
when(priceClient.getPrice()).thenReturn(price);

11
api-gateway/image-microservice/src/main/java/com/iluwatar/image/microservice/ImageController.java
View File

@ -23,27 +23,24 @@
package com.iluwatar.image.microservice;
import static org.slf4j.LoggerFactory.getLogger;
import org.slf4j.Logger;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
/**
* Exposes the Image microservice's endpoints.
*/
@Slf4j
@RestController
public class ImageController {
private static final Logger LOGGER = getLogger(ImageController.class);
/**
* An endpoint for a user to retrieve an image path.
*
* @return An image path
*/
@RequestMapping(value = "/image-path", method = RequestMethod.GET)
@GetMapping("/image-path")
public String getImagePath() {
LOGGER.info("Successfully found image path");
return "/product-image.png";

9
api-gateway/image-microservice/src/test/java/com/iluwatar/image/microservice/ImageControllerTest.java
View File

@ -23,16 +23,17 @@
package com.iluwatar.image.microservice;
import static org.junit.jupiter.api.Assertions.assertEquals;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertEquals;
/**
* Test for Image Rest Controller
*/
public class ImageControllerTest {
class ImageControllerTest {
@Test
public void testGetImagePath() {
void testGetImagePath() {
var imageController = new ImageController();
var imagePath = imageController.getImagePath();
assertEquals("/product-image.png", imagePath);

11
api-gateway/price-microservice/src/main/java/com/iluwatar/price/microservice/PriceController.java
View File

@ -23,27 +23,24 @@
package com.iluwatar.price.microservice;
import static org.slf4j.LoggerFactory.getLogger;
import org.slf4j.Logger;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
/**
* Exposes the Price microservice's endpoints.
*/
@Slf4j
@RestController
public class PriceController {
private static final Logger LOGGER = getLogger(PriceController.class);
/**
* An endpoint for a user to retrieve a product's price.
*
* @return A product's price
*/
@RequestMapping(value = "/price", method = RequestMethod.GET)
@GetMapping("/price")
public String getPrice() {
LOGGER.info("Successfully found price info");
return "20";

9
api-gateway/price-microservice/src/test/java/com/iluwatar/price/microservice/PriceControllerTest.java
View File

@ -23,16 +23,17 @@
package com.iluwatar.price.microservice;
import static org.junit.jupiter.api.Assertions.assertEquals;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertEquals;
/**
* Test for Price Rest Controller
*/
public class PriceControllerTest {
class PriceControllerTest {
@Test
public void testgetPrice() {
void testgetPrice() {
var priceController = new PriceController();
var price = priceController.getPrice();
assertEquals("20", price);

10
arrange-act-assert/README.md
View File

@ -81,10 +81,10 @@ Then we write our unit tests according to Arrange/Act/Assert pattern. Notice the
separated steps for each unit test.
```java
public class CashAAATest {
class CashAAATest {
@Test
public void testPlus() {
void testPlus() {
//Arrange
var cash = new Cash(3);
//Act
@ -94,7 +94,7 @@ public class CashAAATest {
}
@Test
public void testMinus() {
void testMinus() {
//Arrange
var cash = new Cash(8);
//Act
@ -105,7 +105,7 @@ public class CashAAATest {
}
@Test
public void testInsufficientMinus() {
void testInsufficientMinus() {
//Arrange
var cash = new Cash(1);
//Act
@ -116,7 +116,7 @@ public class CashAAATest {
}
@Test
public void testUpdate() {
void testUpdate() {
//Arrange
var cash = new Cash(5);
//Act

7
arrange-act-assert/src/main/java/com/iluwatar/arrangeactassert/Cash.java
View File

@ -23,18 +23,17 @@
package com.iluwatar.arrangeactassert;
import lombok.AllArgsConstructor;
/**
* Arrange/Act/Assert (AAA) is a unit test pattern. In this simple example, we have a ({@link Cash})
* object for plus, minus and counting amount.
*/
@AllArgsConstructor
public class Cash {
private int amount;
Cash(int amount) {
this.amount = amount;
}
//plus
void plus(int addend) {
amount += addend;

6
async-method-invocation/src/main/java/com/iluwatar/async/method/invocation/App.java
View File

@ -24,8 +24,7 @@
package com.iluwatar.async.method.invocation;
import java.util.concurrent.Callable;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.extern.slf4j.Slf4j;
/**
* This application demonstrates the async method invocation pattern. Key parts of the pattern are
@ -55,10 +54,9 @@ import org.slf4j.LoggerFactory;
* @see java.util.concurrent.CompletableFuture
* @see java.util.concurrent.ExecutorService
*/
@Slf4j
public class App {
private static final Logger LOGGER = LoggerFactory.getLogger(App.class);
/**
* Program entry point.
*/

9
balking/src/main/java/com/iluwatar/balking/App.java
View File

@ -23,11 +23,9 @@
package com.iluwatar.balking;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.extern.slf4j.Slf4j;
/**
* In Balking Design Pattern if an object’s method is invoked when it is in an inappropriate state,
@ -40,11 +38,9 @@ import org.slf4j.LoggerFactory;
* been already washing and any other thread execute wash() it can't do that once again and returns
* doing nothing.
*/
@Slf4j
public class App {
private static final Logger LOGGER = LoggerFactory.getLogger(App.class);
/**
* Entry Point.
*
@ -61,6 +57,7 @@ public class App {
executorService.awaitTermination(10, TimeUnit.SECONDS);
} catch (InterruptedException ie) {
LOGGER.error("ERROR: Waiting on executor service shutdown!");
Thread.currentThread().interrupt();
}
}

10
balking/src/main/java/com/iluwatar/balking/WashingMachine.java
View File

@ -24,15 +24,14 @@
package com.iluwatar.balking;
import java.util.concurrent.TimeUnit;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.extern.slf4j.Slf4j;
/**
* Washing machine class.
*/
@Slf4j
public class WashingMachine {
private static final Logger LOGGER = LoggerFactory.getLogger(WashingMachine.class);
private final DelayProvider delayProvider;
private WashingMachineState washingMachineState;
@ -44,7 +43,8 @@ public class WashingMachine {
try {
Thread.sleep(timeUnit.toMillis(interval));
} catch (InterruptedException ie) {
ie.printStackTrace();
LOGGER.error("", ie);
Thread.currentThread().interrupt();
}
task.run();
});
@ -71,7 +71,7 @@ public class WashingMachine {
var machineState = getWashingMachineState();
LOGGER.info("{}: Actual machine state: {}", Thread.currentThread().getName(), machineState);
if (this.washingMachineState == WashingMachineState.WASHING) {
LOGGER.error("ERROR: Cannot wash if the machine has been already washing!");
LOGGER.error("Cannot wash if the machine has been already washing!");
return;
}
this.washingMachineState = WashingMachineState.WASHING;

3
balking/src/main/java/com/iluwatar/balking/WashingMachineState.java
View File

@ -28,5 +28,6 @@ package com.iluwatar.balking;
* as well as during washing.
*/
public enum WashingMachineState {
ENABLED, WASHING
ENABLED,
WASHING
}

6
bridge/src/main/java/com/iluwatar/bridge/App.java
View File

@ -23,8 +23,7 @@
package com.iluwatar.bridge;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.extern.slf4j.Slf4j;
/**
* Composition over inheritance. The Bridge pattern can also be thought of as two layers of
@ -39,10 +38,9 @@ import org.slf4j.LoggerFactory;
* enchantments. We can easily combine any weapon with any enchantment using composition instead of
* creating deep class hierarchy.
*/
@Slf4j
public class App {
private static final Logger LOGGER = LoggerFactory.getLogger(App.class);
/**
* Program entry point.
*

6
bridge/src/main/java/com/iluwatar/bridge/FlyingEnchantment.java
View File

@ -23,16 +23,14 @@
package com.iluwatar.bridge;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.extern.slf4j.Slf4j;
/**
* FlyingEnchantment.
*/
@Slf4j
public class FlyingEnchantment implements Enchantment {
private static final Logger LOGGER = LoggerFactory.getLogger(FlyingEnchantment.class);
@Override
public void onActivate() {
LOGGER.info("The item begins to glow faintly.");

12
bridge/src/main/java/com/iluwatar/bridge/Hammer.java
View File

@ -23,22 +23,18 @@
package com.iluwatar.bridge;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.AllArgsConstructor;
import lombok.extern.slf4j.Slf4j;
/**
* Hammer.
*/
@Slf4j
@AllArgsConstructor
public class Hammer implements Weapon {
private static final Logger LOGGER = LoggerFactory.getLogger(Hammer.class);
private final Enchantment enchantment;
public Hammer(Enchantment enchantment) {
this.enchantment = enchantment;
}
@Override
public void wield() {
LOGGER.info("The hammer is wielded.");

6
bridge/src/main/java/com/iluwatar/bridge/SoulEatingEnchantment.java
View File

@ -23,16 +23,14 @@
package com.iluwatar.bridge;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.extern.slf4j.Slf4j;
/**
* SoulEatingEnchantment.
*/
@Slf4j
public class SoulEatingEnchantment implements Enchantment {
private static final Logger LOGGER = LoggerFactory.getLogger(SoulEatingEnchantment.class);
@Override
public void onActivate() {
LOGGER.info("The item spreads bloodlust.");

12
bridge/src/main/java/com/iluwatar/bridge/Sword.java
View File

@ -23,22 +23,18 @@
package com.iluwatar.bridge;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.AllArgsConstructor;
import lombok.extern.slf4j.Slf4j;
/**
* Sword.
*/
@Slf4j
@AllArgsConstructor
public class Sword implements Weapon {
private static final Logger LOGGER = LoggerFactory.getLogger(Sword.class);
private final Enchantment enchantment;
public Sword(Enchantment enchantment) {
this.enchantment = enchantment;
}
@Override
public void wield() {
LOGGER.info("The sword is wielded.");

7
builder/src/main/java/com/iluwatar/builder/App.java
View File

@ -24,8 +24,7 @@
package com.iluwatar.builder;
import com.iluwatar.builder.Hero.Builder;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.extern.slf4j.Slf4j;
/**
* The intention of the Builder pattern is to find a solution to the telescoping constructor
@ -48,10 +47,9 @@ import org.slf4j.LoggerFactory;
* configuration for the {@link Hero} object can be done using the fluent {@link Builder} interface.
* When configuration is ready the build method is called to receive the final {@link Hero} object.
*/
@Slf4j
public class App {
private static final Logger LOGGER = LoggerFactory.getLogger(App.class);
/**
* Program entry point.
*
@ -76,6 +74,5 @@ public class App {
.withWeapon(Weapon.BOW)
.build();
LOGGER.info(thief.toString());
}
}

12
builder/src/main/java/com/iluwatar/builder/Armor.java
View File

@ -23,19 +23,21 @@
package com.iluwatar.builder;
import lombok.AllArgsConstructor;
/**
* Armor enumeration.
*/
@AllArgsConstructor
public enum Armor {
CLOTHES("clothes"), LEATHER("leather"), CHAIN_MAIL("chain mail"), PLATE_MAIL("plate mail");
CLOTHES("clothes"),
LEATHER("leather"),
CHAIN_MAIL("chain mail"),
PLATE_MAIL("plate mail");
private final String title;
Armor(String title) {
this.title = title;
}
@Override
public String toString() {
return title;

6
builder/src/main/java/com/iluwatar/builder/HairColor.java
View File

@ -28,7 +28,11 @@ package com.iluwatar.builder;
*/
public enum HairColor {
WHITE, BLOND, RED, BROWN, BLACK;
WHITE,
BLOND,
RED,
BROWN,
BLACK;
@Override
public String toString() {

14
builder/src/main/java/com/iluwatar/builder/HairType.java
View File

@ -23,20 +23,22 @@
package com.iluwatar.builder;
import lombok.AllArgsConstructor;
/**
* HairType enumeration.
*/
@AllArgsConstructor
public enum HairType {
BALD("bald"), SHORT("short"), CURLY("curly"), LONG_STRAIGHT("long straight"), LONG_CURLY(
"long curly");
BALD("bald"),
SHORT("short"),
CURLY("curly"),
LONG_STRAIGHT("long straight"),
LONG_CURLY("long curly");
private final String title;
HairType(String title) {
this.title = title;
}
@Override
public String toString() {
return title;

1
builder/src/test/java/com/iluwatar/builder/AppTest.java
View File

@ -41,7 +41,6 @@ class AppTest {
@Test
void shouldExecuteApplicationWithoutException() {
assertDoesNotThrow(() -> App.main(new String[]{}));
}
}

3
business-delegate/src/main/java/com/iluwatar/business/delegate/BusinessDelegate.java
View File

@ -29,7 +29,6 @@ package com.iluwatar.business.delegate;
public class BusinessDelegate {
private BusinessLookup lookupService;
private BusinessService businessService;
private ServiceType serviceType;
public void setLookupService(BusinessLookup businessLookup) {
@ -41,7 +40,7 @@ public class BusinessDelegate {
}
public void doTask() {
businessService = lookupService.getBusinessService(serviceType);
BusinessService businessService = lookupService.getBusinessService(serviceType);
businessService.doProcessing();
}
}

11
business-delegate/src/main/java/com/iluwatar/business/delegate/BusinessLookup.java
View File

@ -23,9 +23,12 @@
package com.iluwatar.business.delegate;
import lombok.Setter;
/**
* Class for performing service lookups.
*/
@Setter
public class BusinessLookup {
private EjbService ejbService;
@ -45,12 +48,4 @@ public class BusinessLookup {
return jmsService;
}
}
public void setJmsService(JmsService jmsService) {
this.jmsService = jmsService;
}
public void setEjbService(EjbService ejbService) {
this.ejbService = ejbService;
}
}

6
business-delegate/src/main/java/com/iluwatar/business/delegate/EjbService.java
View File

@ -23,16 +23,14 @@
package com.iluwatar.business.delegate;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.extern.slf4j.Slf4j;
/**
* Service EJB implementation.
*/
@Slf4j
public class EjbService implements BusinessService {
private static final Logger LOGGER = LoggerFactory.getLogger(EjbService.class);
@Override
public void doProcessing() {
LOGGER.info("EjbService is now processing");

6
business-delegate/src/main/java/com/iluwatar/business/delegate/JmsService.java
View File

@ -23,16 +23,14 @@
package com.iluwatar.business.delegate;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.extern.slf4j.Slf4j;
/**
* Service JMS implementation.
*/
@Slf4j
public class JmsService implements BusinessService {
private static final Logger LOGGER = LoggerFactory.getLogger(JmsService.class);
@Override
public void doProcessing() {
LOGGER.info("JmsService is now processing");

3
business-delegate/src/main/java/com/iluwatar/business/delegate/ServiceType.java
View File

@ -28,5 +28,6 @@ package com.iluwatar.business.delegate;
*/
public enum ServiceType {
EJB, JMS
EJB,
JMS
}

8
business-delegate/src/test/java/com/iluwatar/business/delegate/BusinessDelegateTest.java
View File

@ -40,14 +40,12 @@ import static org.mockito.Mockito.verify;
* retrieved through service lookups. The Business Delegate itself may contain business logic too
* potentially tying together multiple service calls, exception handling, retrying etc.
*/
public class BusinessDelegateTest {
class BusinessDelegateTest {
private EjbService ejbService;
private JmsService jmsService;
private BusinessLookup businessLookup;
private BusinessDelegate businessDelegate;
/**
@ -59,7 +57,7 @@ public class BusinessDelegateTest {
ejbService = spy(new EjbService());
jmsService = spy(new JmsService());
businessLookup = spy(new BusinessLookup());
BusinessLookup businessLookup = spy(new BusinessLookup());
businessLookup.setEjbService(ejbService);
businessLookup.setJmsService(jmsService);
@ -73,7 +71,7 @@ public class BusinessDelegateTest {
* service and makes the service call.
*/
@Test
public void testBusinessDelegate() {
void testBusinessDelegate() {
// setup a client object
var client = new Client(businessDelegate);

5
bytecode/src/main/java/com/iluwatar/bytecode/App.java
View File

@ -24,8 +24,7 @@
package com.iluwatar.bytecode;
import com.iluwatar.bytecode.util.InstructionConverterUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.extern.slf4j.Slf4j;
/**
* The intention of Bytecode pattern is to give behavior the flexibility of data by encoding it as
@ -40,8 +39,8 @@ import org.slf4j.LoggerFactory;
* ensure the behavior being defined can’t break the game, you need to sandbox it from the rest of
* the codebase.
*/
@Slf4j
public class App {
private static final Logger LOGGER = LoggerFactory.getLogger(App.class);
/**
* Main app method.

15
bytecode/src/main/java/com/iluwatar/bytecode/Instruction.java
View File

@ -23,9 +23,14 @@
package com.iluwatar.bytecode;
import lombok.AllArgsConstructor;
import lombok.Getter;
/**
* Representation of instructions understandable by virtual machine.
*/
@AllArgsConstructor
@Getter
public enum Instruction {
LITERAL(1),
@ -40,15 +45,7 @@ public enum Instruction {
ADD(10),
DIVIDE(11);
private final int value;
Instruction(int value) {
this.value = value;
}
public int getIntValue() {
return value;
}
private final int intValue;
/**
* Converts integer value to Instruction.

10
bytecode/src/main/java/com/iluwatar/bytecode/VirtualMachine.java
View File

@ -24,10 +24,12 @@
package com.iluwatar.bytecode;
import java.util.Stack;
import lombok.Getter;
/**
* Implementation of virtual machine.
*/
@Getter
public class VirtualMachine {
private final Stack<Integer> stack = new Stack<>();
@ -108,10 +110,6 @@ public class VirtualMachine {
}
}
public Stack<Integer> getStack() {
return stack;
}
public void setHealth(int wizard, int amount) {
wizards[wizard].setHealth(amount);
}
@ -135,8 +133,4 @@ public class VirtualMachine {
public int getAgility(int wizard) {
return wizards[wizard].getAgility();
}
public Wizard[] getWizards() {
return wizards;
}
}

40
bytecode/src/main/java/com/iluwatar/bytecode/Wizard.java
View File

@ -23,15 +23,18 @@
package com.iluwatar.bytecode;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.Getter;
import lombok.Setter;
import lombok.extern.slf4j.Slf4j;
/**
* This class represent game objects which properties can be changed by instructions interpreted by
* virtual machine.
*/
@Setter
@Getter
@Slf4j
public class Wizard {
private static final Logger LOGGER = LoggerFactory.getLogger(Wizard.class);
private int health;
@ -41,30 +44,6 @@ public class Wizard {
private int numberOfPlayedSounds;
private int numberOfSpawnedParticles;
public int getHealth() {
return health;
}
public void setHealth(int health) {
this.health = health;
}
public int getAgility() {
return agility;
}
public void setAgility(int agility) {
this.agility = agility;
}
public int getWisdom() {
return wisdom;
}
public void setWisdom(int wisdom) {
this.wisdom = wisdom;
}
public void playSound() {
LOGGER.info("Playing sound");
numberOfPlayedSounds++;
@ -75,11 +54,4 @@ public class Wizard {
numberOfSpawnedParticles++;
}
public int getNumberOfPlayedSounds() {
return numberOfPlayedSounds;
}
public int getNumberOfSpawnedParticles() {
return numberOfSpawnedParticles;
}
}

24
bytecode/src/test/java/com/iluwatar/bytecode/VirtualMachineTest.java
View File

@ -23,19 +23,19 @@
package com.iluwatar.bytecode;
import org.junit.jupiter.api.Test;
import static com.iluwatar.bytecode.Instruction.*;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;
import org.junit.jupiter.api.Test;
/**
* Test for {@Link VirtualMachine}
* Test for {@link VirtualMachine}
*/
public class VirtualMachineTest {
class VirtualMachineTest {
@Test
public void testLiteral() {
void testLiteral() {
var bytecode = new int[2];
bytecode[0] = LITERAL.getIntValue();
bytecode[1] = 10;
@ -48,7 +48,7 @@ public class VirtualMachineTest {
}
@Test
public void testSetHealth() {
void testSetHealth() {
var wizardNumber = 0;
var bytecode = new int[5];
bytecode[0] = LITERAL.getIntValue();
@ -64,7 +64,7 @@ public class VirtualMachineTest {
}
@Test
public void testSetAgility() {
void testSetAgility() {
var wizardNumber = 0;
var bytecode = new int[5];
bytecode[0] = LITERAL.getIntValue();
@ -80,7 +80,7 @@ public class VirtualMachineTest {
}
@Test
public void testSetWisdom() {
void testSetWisdom() {
var wizardNumber = 0;
var bytecode = new int[5];
bytecode[0] = LITERAL.getIntValue();
@ -96,7 +96,7 @@ public class VirtualMachineTest {
}
@Test
public void testGetHealth() {
void testGetHealth() {
var wizardNumber = 0;
var bytecode = new int[8];
bytecode[0] = LITERAL.getIntValue();
@ -115,7 +115,7 @@ public class VirtualMachineTest {
}
@Test
public void testPlaySound() {
void testPlaySound() {
var wizardNumber = 0;
var bytecode = new int[3];
bytecode[0] = LITERAL.getIntValue();
@ -130,7 +130,7 @@ public class VirtualMachineTest {
}
@Test
public void testSpawnParticles() {
void testSpawnParticles() {
var wizardNumber = 0;
var bytecode = new int[3];
bytecode[0] = LITERAL.getIntValue();
@ -145,7 +145,7 @@ public class VirtualMachineTest {
}
@Test
public void testInvalidInstruction() {
void testInvalidInstruction() {
var bytecode = new int[1];
bytecode[0] = 999;
var vm = new VirtualMachine();

10
bytecode/src/test/java/com/iluwatar/bytecode/util/InstructionConverterUtilTest.java
View File

@ -24,16 +24,16 @@
package com.iluwatar.bytecode.util;
import com.iluwatar.bytecode.Instruction;
import com.iluwatar.bytecode.util.InstructionConverterUtil;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
/**
* Test for {@Link InstructionConverterUtil}
* Test for {@link InstructionConverterUtil}
*/
public class InstructionConverterUtilTest {
class InstructionConverterUtilTest {
@Test
public void testEmptyInstruction() {
void testEmptyInstruction() {
var instruction = "";
var bytecode = InstructionConverterUtil.convertToByteCode(instruction);
@ -42,7 +42,7 @@ public class InstructionConverterUtilTest {
}
@Test
public void testInstructions() {
void testInstructions() {
var instructions = "LITERAL 35 SET_HEALTH SET_WISDOM SET_AGILITY PLAY_SOUND"
+ " SPAWN_PARTICLES GET_HEALTH ADD DIVIDE";

7
caching/src/main/java/com/iluwatar/caching/App.java
View File

@ -23,8 +23,7 @@
package com.iluwatar.caching;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.extern.slf4j.Slf4j;
/**
* The Caching pattern describes how to avoid expensive re-acquisition of resources by not releasing
@ -60,11 +59,9 @@ import org.slf4j.LoggerFactory;
* @see LruCache
* @see CachingPolicy
*/
@Slf4j
public class App {
private static final Logger LOGGER = LoggerFactory.getLogger(App.class);
/**
* Program entry point.
*

6
caching/src/main/java/com/iluwatar/caching/CacheStore.java
View File

@ -26,16 +26,14 @@ package com.iluwatar.caching;
import java.util.List;
import java.util.Optional;
import java.util.stream.Collectors;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.extern.slf4j.Slf4j;
/**
* The caching strategies are implemented in this class.
*/
@Slf4j
public class CacheStore {
private static final Logger LOGGER = LoggerFactory.getLogger(CacheStore.class);
private static LruCache cache;
private CacheStore() {

18
caching/src/main/java/com/iluwatar/caching/CachingPolicy.java
View File

@ -23,19 +23,19 @@
package com.iluwatar.caching;
import lombok.AllArgsConstructor;
import lombok.Getter;
/**
* Enum class containing the four caching strategies implemented in the pattern.
*/
@AllArgsConstructor
@Getter
public enum CachingPolicy {
THROUGH("through"), AROUND("around"), BEHIND("behind"), ASIDE("aside");
THROUGH("through"),
AROUND("around"),
BEHIND("behind"),
ASIDE("aside");
private final String policy;
CachingPolicy(String policy) {
this.policy = policy;
}
public String getPolicy() {
return policy;
}
}

8
caching/src/main/java/com/iluwatar/caching/LruCache.java
View File

@ -27,8 +27,7 @@ import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.extern.slf4j.Slf4j;
/**
* Data structure/implementation of the application's cache. The data structure consists of a hash
@ -37,11 +36,10 @@ import org.slf4j.LoggerFactory;
* 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.
*/
@Slf4j
public class LruCache {
private static final Logger LOGGER = LoggerFactory.getLogger(LruCache.class);
class Node {
static class Node {
String userId;
UserAccount userAccount;
Node previous;

47
caching/src/main/java/com/iluwatar/caching/UserAccount.java
View File

@ -23,49 +23,20 @@
package com.iluwatar.caching;
import lombok.AllArgsConstructor;
import lombok.Getter;
import lombok.Setter;
import lombok.ToString;
/**
* Entity class (stored in cache and DB) used in the application.
*/
@Setter
@Getter
@AllArgsConstructor
@ToString
public class UserAccount {
private String userId;
private String userName;
private String additionalInfo;
/**
* Constructor.
*/
public UserAccount(String userId, String userName, String additionalInfo) {
this.userId = userId;
this.userName = userName;
this.additionalInfo = additionalInfo;
}
public String getUserId() {
return userId;
}
public void setUserId(String userId) {
this.userId = userId;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getAdditionalInfo() {
return additionalInfo;
}
public void setAdditionalInfo(String additionalInfo) {
this.additionalInfo = additionalInfo;
}
@Override
public String toString() {
return userId + ", " + userName + ", " + additionalInfo;
}
}

3
callback/README.md
View File

@ -54,10 +54,9 @@ public abstract class Task {
public abstract void execute();
}
@Slf4j
public final class SimpleTask extends Task {
private static final Logger LOGGER = getLogger(SimpleTask.class);
@Override
public void execute() {
LOGGER.info("Perform some important activity and after call the callback method.");

7
callback/src/main/java/com/iluwatar/callback/App.java
View File

@ -23,19 +23,16 @@
package com.iluwatar.callback;
import static org.slf4j.LoggerFactory.getLogger;
import org.slf4j.Logger;
import lombok.extern.slf4j.Slf4j;
/**
* Callback pattern is more native for functional languages where functions are treated as
* first-class citizens. Prior to Java 8 callbacks can be simulated using simple (alike command)
* interfaces.
*/
@Slf4j
public final class App {
private static final Logger LOGGER = getLogger(App.class);
private App() {
}

10
callback/src/main/java/com/iluwatar/callback/SimpleTask.java
View File

@ -23,20 +23,16 @@
package com.iluwatar.callback;
import static org.slf4j.LoggerFactory.getLogger;
import org.slf4j.Logger;
import lombok.extern.slf4j.Slf4j;
/**
* Implementation of task that need to be executed.
*/
@Slf4j
public final class SimpleTask extends Task {
private static final Logger LOGGER = getLogger(SimpleTask.class);
@Override
public void execute() {
LOGGER.info("Perform some important activity and after call the"
+ " callback method.");
LOGGER.info("Perform some important activity and after call the callback method.");
}
}

2
callback/src/test/java/com/iluwatar/callback/CallbackTest.java
View File

@ -38,7 +38,7 @@ public class CallbackTest {
private Integer callingCount = 0;
@Test
public void test() {
void test() {
Callback callback = () -> callingCount++;
var task = new SimpleTask();

2
chain/README.md
View File

@ -68,8 +68,8 @@ public enum RequestType {
Then the request handler hierarchy
```java
@Slf4j
public abstract class RequestHandler {
private static final Logger LOGGER = LoggerFactory.getLogger(RequestHandler.class);
private final RequestHandler next;
public RequestHandler(RequestHandler next) {

1
chain/src/main/java/com/iluwatar/chain/App.java
View File

@ -47,6 +47,5 @@ public class App {
king.makeRequest(new Request(RequestType.DEFEND_CASTLE, "defend castle"));
king.makeRequest(new Request(RequestType.TORTURE_PRISONER, "torture prisoner"));
king.makeRequest(new Request(RequestType.COLLECT_TAX, "collect tax"));
}
}

12
chain/src/main/java/com/iluwatar/chain/RequestHandler.java
View File

@ -23,22 +23,18 @@
package com.iluwatar.chain;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.AllArgsConstructor;
import lombok.extern.slf4j.Slf4j;
/**
* RequestHandler.
*/
@Slf4j
@AllArgsConstructor
public abstract class RequestHandler {
private static final Logger LOGGER = LoggerFactory.getLogger(RequestHandler.class);
private final RequestHandler next;
public RequestHandler(RequestHandler next) {
this.next = next;
}
/**
* Request handler.
*/

4
chain/src/main/java/com/iluwatar/chain/RequestType.java
View File

@ -28,6 +28,8 @@ package com.iluwatar.chain;
*/
public enum RequestType {
DEFEND_CASTLE, TORTURE_PRISONER, COLLECT_TAX
DEFEND_CASTLE,
TORTURE_PRISONER,
COLLECT_TAX
}

4
chain/src/test/java/com/iluwatar/chain/OrcKingTest.java
View File

@ -33,7 +33,7 @@ import org.junit.jupiter.api.Test;
*
* @author Jeroen Meulemeester
*/
public class OrcKingTest {
class OrcKingTest {
/**
* All possible requests
@ -45,7 +45,7 @@ public class OrcKingTest {
);
@Test
public void testMakeRequest() {
void testMakeRequest() {
final var king = new OrcKing();
REQUESTS.forEach(request -> {

1
circuit-breaker/README.md
View File

@ -54,6 +54,7 @@ The service architecture is as follows:
In terms of code, the end user application is:
```java
@Slf4j
public class App {
private static final Logger LOGGER = LoggerFactory.getLogger(App.class);

6
circuit-breaker/src/main/java/com/iluwatar/circuitbreaker/App.java
View File

@ -23,8 +23,7 @@
package com.iluwatar.circuitbreaker;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.extern.slf4j.Slf4j;
/**
* <p>
@ -55,10 +54,9 @@ import org.slf4j.LoggerFactory;
* recovers, it goes back to the closed state and the cycle continues.
* </p>
*/
@Slf4j
public class App {
private static final Logger LOGGER = LoggerFactory.getLogger(App.class);
/**
* Program entry point.
*

7
circuit-breaker/src/test/java/com/iluwatar/circuitbreaker/DefaultCircuitBreakerTest.java
View File

@ -35,7 +35,7 @@ public class DefaultCircuitBreakerTest {
//long timeout, int failureThreshold, long retryTimePeriod
@Test
public void testEvaluateState() {
void testEvaluateState() {
var circuitBreaker = new DefaultCircuitBreaker(null, 1, 1, 100);
//Right now, failureCount<failureThreshold, so state should be closed
assertEquals(circuitBreaker.getState(), "CLOSED");
@ -57,7 +57,7 @@ public class DefaultCircuitBreakerTest {
}
@Test
public void testSetStateForBypass() {
void testSetStateForBypass() {
var circuitBreaker = new DefaultCircuitBreaker(null, 1, 1, 2000 * 1000 * 1000);
//Right now, failureCount<failureThreshold, so state should be closed
//Bypass it and set it to open
@ -66,7 +66,7 @@ public class DefaultCircuitBreakerTest {
}
@Test
public void testApiResponses() throws RemoteServiceException {
void testApiResponses() throws RemoteServiceException {
RemoteService mockService = new RemoteService() {
@Override
public String call() throws RemoteServiceException {
@ -79,6 +79,5 @@ public class DefaultCircuitBreakerTest {
var serviceStartTime = System.nanoTime() - 60 * 1000 * 1000 * 1000;
var response = circuitBreaker.attemptRequest();
assertEquals(response, "Remote Success");
}
}

4
circuit-breaker/src/test/java/com/iluwatar/circuitbreaker/DelayedRemoteServiceTest.java
View File

@ -31,7 +31,7 @@ import org.junit.jupiter.api.Test;
/**
* Monitoring Service test
*/
public class DelayedRemoteServiceTest {
class DelayedRemoteServiceTest {
/**
* Testing immediate response of the delayed service.
@ -39,7 +39,7 @@ public class DelayedRemoteServiceTest {
* @throws RemoteServiceException
*/
@Test
public void testDefaultConstructor() throws RemoteServiceException {
void testDefaultConstructor() throws RemoteServiceException {
Assertions.assertThrows(RemoteServiceException.class, () -> {
var obj = new DelayedRemoteService();
obj.call();

10
circuit-breaker/src/test/java/com/iluwatar/circuitbreaker/MonitoringServiceTest.java
View File

@ -30,18 +30,18 @@ import org.junit.jupiter.api.Test;
/**
* Monitoring Service test
*/
public class MonitoringServiceTest {
class MonitoringServiceTest {
//long timeout, int failureThreshold, long retryTimePeriod
@Test
public void testLocalResponse() {
void testLocalResponse() {
var monitoringService = new MonitoringService(null,null);
var response = monitoringService.localResourceResponse();
assertEquals(response, "Local Service is working");
}
@Test
public void testDelayedRemoteResponseSuccess() {
void testDelayedRemoteResponseSuccess() {
var delayedService = new DelayedRemoteService(System.nanoTime()-2*1000*1000*1000, 2);
var delayedServiceCircuitBreaker = new DefaultCircuitBreaker(delayedService, 3000,
1,
@ -54,7 +54,7 @@ public class MonitoringServiceTest {
}
@Test
public void testDelayedRemoteResponseFailure() {
void testDelayedRemoteResponseFailure() {
var delayedService = new DelayedRemoteService(System.nanoTime(), 2);
var delayedServiceCircuitBreaker = new DefaultCircuitBreaker(delayedService, 3000,
1,
@ -66,7 +66,7 @@ public class MonitoringServiceTest {
}
@Test
public void testQuickRemoteServiceResponse() {
void testQuickRemoteServiceResponse() {
var delayedService = new QuickRemoteService();
var delayedServiceCircuitBreaker = new DefaultCircuitBreaker(delayedService, 3000,
1,

6
collection-pipeline/src/main/java/com/iluwatar/collectionpipeline/App.java
View File

@ -24,8 +24,7 @@
package com.iluwatar.collectionpipeline;
import java.util.List;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.extern.slf4j.Slf4j;
/**
* In imperative-style programming, it is common to use for and while loops for most kinds of data
@ -35,10 +34,9 @@ import org.slf4j.LoggerFactory;
* create sophisticated programs where data flow from upstream to downstream and is passed through a
* series of transformations.
*/
@Slf4j
public class App {
private static final Logger LOGGER = LoggerFactory.getLogger(App.class);
/**
* Program entry point.
*

80
collection-pipeline/src/main/java/com/iluwatar/collectionpipeline/Car.java
View File

@ -23,86 +23,20 @@
package com.iluwatar.collectionpipeline;
import lombok.EqualsAndHashCode;
import lombok.Getter;
import lombok.RequiredArgsConstructor;
/**
* A Car class that has the properties of make, model, year and category.
*/
@Getter
@EqualsAndHashCode
@RequiredArgsConstructor
public class Car {
private final String make;
private final String model;
private final int year;
private final Category category;
/**
* Constructor to create an instance of car.
*
* @param make the make of the car
* @param model the model of the car
* @param yearOfMake the year of built of the car
* @param category the {@link Category} of the car
*/
public Car(String make, String model, int yearOfMake, Category category) {
this.make = make;
this.model = model;
this.year = yearOfMake;
this.category = category;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((category == null) ? 0 : category.hashCode());
result = prime * result + ((make == null) ? 0 : make.hashCode());
result = prime * result + ((model == null) ? 0 : model.hashCode());
result = prime * result + year;
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
Car other = (Car) obj;
if (category != other.category) {
return false;
}
if (make == null) {
if (other.make != null) {
return false;
}
} else if (!make.equals(other.make)) {
return false;
}
if (model == null) {
if (other.model != null) {
return false;
}
} else if (!model.equals(other.model)) {
return false;
}
return year == other.year;
}
public String getMake() {
return make;
}
public String getModel() {
return model;
}
public int getYear() {
return year;
}
public Category getCategory() {
return category;
}
}

4
collection-pipeline/src/main/java/com/iluwatar/collectionpipeline/Category.java
View File

@ -27,5 +27,7 @@ package com.iluwatar.collectionpipeline;
* Enum for the category of car.
*/
public enum Category {
JEEP, SEDAN, CONVERTIBLE
JEEP,
SEDAN,
CONVERTIBLE
}

17
collection-pipeline/src/main/java/com/iluwatar/collectionpipeline/Person.java
View File

@ -24,23 +24,16 @@
package com.iluwatar.collectionpipeline;
import java.util.List;
import lombok.Getter;
import lombok.RequiredArgsConstructor;
/**
* A Person class that has the list of cars that the person owns and use.
*/
@Getter
@RequiredArgsConstructor
public class Person {
private final List<Car> cars;
/**
* Constructor to create an instance of person.
*
* @param cars the list of cars owned
*/
public Person(List<Car> cars) {
this.cars = cars;
}
public List<Car> getCars() {
return cars;
}
}

15
collection-pipeline/src/test/java/com/iluwatar/collectionpipeline/AppTest.java
View File

@ -27,32 +27,31 @@ import static org.junit.jupiter.api.Assertions.assertEquals;
import java.util.List;
import java.util.Map;
import lombok.extern.slf4j.Slf4j;
import org.junit.jupiter.api.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Tests that Collection Pipeline methods work as expected.
*/
public class AppTest {
private static final Logger LOGGER = LoggerFactory.getLogger(AppTest.class);
@Slf4j
class AppTest {
private final List<Car> cars = CarFactory.createCars();
@Test
public void testGetModelsAfter2000UsingFor() {
void testGetModelsAfter2000UsingFor() {
var models = ImperativeProgramming.getModelsAfter2000(cars);
assertEquals(List.of("Avenger", "Wrangler", "Focus", "Cascada"), models);
}
@Test
public void testGetModelsAfter2000UsingPipeline() {
void testGetModelsAfter2000UsingPipeline() {
var models = FunctionalProgramming.getModelsAfter2000(cars);
assertEquals(List.of("Avenger", "Wrangler", "Focus", "Cascada"), models);
}
@Test
public void testGetGroupingOfCarsByCategory() {
void testGetGroupingOfCarsByCategory() {
var modelsExpected = Map.of(
Category.CONVERTIBLE, List.of(
new Car("Buick", "Cascada", 2016, Category.CONVERTIBLE),
@ -74,7 +73,7 @@ public class AppTest {
}
@Test
public void testGetSedanCarsOwnedSortedByDate() {
void testGetSedanCarsOwnedSortedByDate() {
var john = new Person(cars);
var modelsExpected = List.of(
new Car("Dodge", "Avenger", 2010, Category.SEDAN),

12
combinator/src/main/java/com/iluwatar/combinator/CombinatorApp.java
View File

@ -23,8 +23,7 @@
package com.iluwatar.combinator;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import lombok.extern.slf4j.Slf4j;
/**
@ -41,13 +40,9 @@ import org.slf4j.LoggerFactory;
* {@link Finder#and(Finder)}
* Using them the became possible to get more complex functions {@link Finders}
*/
@Slf4j
public class CombinatorApp {
/**
* Logger.
*/
private static final Logger LOGGER = LoggerFactory.getLogger(CombinatorApp.class);
/**
* main.
* @param args args
@ -63,14 +58,13 @@ public class CombinatorApp {
res = finder.find(text());
LOGGER.info("the result of specialized(and) query[{}] is {}", queriesAnd, res);
finder = Finders.advancedFinder("it was","kingdom","sea");
finder = Finders.advancedFinder("it was", "kingdom", "sea");
res = finder.find(text());
LOGGER.info("the result of advanced query is {}", res);
res = Finders.filteredFinder(" was ", "many", "child").find(text());
LOGGER.info("the result of filtered query is {}", res);
}
private static String text() {

3
combinator/src/test/java/com/iluwatar/combinator/CombinatorAppTest.java
View File

@ -31,11 +31,10 @@ class CombinatorAppTest {
/**
* Issue: Add at least one assertion to this test case.
*
* <p>
* Solution: Inserted assertion to check whether the execution of the main method in {@link CombinatorApp#main(String[])}
* throws an exception.
*/
@Test
void shouldExecuteApplicationWithoutException() {
assertDoesNotThrow(() -> CombinatorApp.main(new String[]{}));

3
combinator/src/test/java/com/iluwatar/combinator/FinderTest.java
View File

@ -35,7 +35,6 @@ class FinderTest {
var result = Finder.contains("second").find(example);
assertEquals(1, result.size());
assertEquals("the second one ", result.get(0));
assertEquals( "the second one ", result.get(0));
}
}

20
combinator/src/test/java/com/iluwatar/combinator/FindersTest.java
View File

@ -35,36 +35,36 @@ class FindersTest {
@Test
void advancedFinderTest() {
var res = advancedFinder("it was","kingdom","sea").find(text());
var res = advancedFinder("it was", "kingdom", "sea").find(text());
assertEquals(1, res.size());
assertEquals("It was many and many a year ago,", res.get(0));
assertEquals( "It was many and many a year ago,", res.get(0));
}
@Test
void filteredFinderTest() {
var res = filteredFinder(" was ", "many", "child").find(text());
assertEquals(1, res.size());
assertEquals("But we loved with a love that was more than love-", res.get(0));
assertEquals( "But we loved with a love that was more than love-", res.get(0));
}
@Test
void specializedFinderTest() {
var res = specializedFinder("love","heaven").find(text());
var res = specializedFinder("love", "heaven").find(text());
assertEquals(1, res.size());
assertEquals("With a love that the winged seraphs of heaven", res.get(0));
assertEquals( "With a love that the winged seraphs of heaven", res.get(0));
}
@Test
void expandedFinderTest() {
var res = expandedFinder("It was","kingdom").find(text());
var res = expandedFinder("It was", "kingdom").find(text());
assertEquals(3, res.size());
assertEquals("It was many and many a year ago,", res.get(0));
assertEquals("In a kingdom by the sea,", res.get(1));
assertEquals("In this kingdom by the sea;", res.get(2));
assertEquals( "It was many and many a year ago,", res.get(0));
assertEquals( "In a kingdom by the sea,", res.get(1));
assertEquals( "In this kingdom by the sea;", res.get(2));
}
private String text(){
private String text() {
return
"It was many and many a year ago,\n"
+ "In a kingdom by the sea,\n"

4
command/README.md
View File

@ -39,6 +39,7 @@ Wikipedia says
Here's the sample code with wizard and goblin. Let's start from the `Wizard` class.
```java
@Slf4j
public class Wizard {
private final Deque<Command> undoStack = new LinkedList<>();
@ -77,10 +78,9 @@ public class Wizard {
Next, we have the goblin who's the target of the spells.
```java
@Slf4j
public abstract class Target {
private static final Logger LOGGER = LoggerFactory.getLogger(Target.class);
private Size size;
private Visibility visibility;

Some files were not shown because too many files have changed in this diff Show More