BAEL 4092 - code samples for the article (#11235)

* BAEL-4092 initial import for code samples

* BAEL-4092 update code samples

* BAEL-4092 align code samples with the article

* BAEL-4092 some naming and formatting update

* BAEL-4092 fix tests

* BAEL-4092 remove url line in readme

* BAEL-4092 change formatting to fix indentations

* BAEL-4092 fix the typo in the package name

* BAEL-4092 fix pmd violations

* BAEL-4092 fix the test method namings according to convention

* BAEL-4092 add empty spaces on tests to make it more readable

* BAEL-4092 move the code samples from its own module into libraries6

* BAEL-4092 use the latest version of ModelMapper

Co-authored-by: Yavuz Tas <ytas@vwd.com>

libraries-6/src/main/java/com/baeldung/modelmapper/domain/Game.java

@@ -0,0 +1,74 @@
+package com.baeldung.modelmapper.domain;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+public class Game {
+
+    private Long id;
+    private String name;
+    private Long timestamp;
+
+    private Player creator;
+    private final List<Player> players = new ArrayList<>();
+
+    private GameSettings settings;
+
+    public Game() {
+    }
+
+    public Game(Long id, String name) {
+        this.id = id;
+        this.name = name;
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return this.name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public Long getTimestamp() {
+        return this.timestamp;
+    }
+
+    public void setTimestamp(Long timestamp) {
+        this.timestamp = timestamp;
+    }
+
+    public Player getCreator() {
+        return this.creator;
+    }
+
+    public void setCreator(Player creator) {
+        this.creator = creator;
+        addPlayer(creator);
+    }
+
+    public void addPlayer(Player player) {
+        this.players.add(player);
+    }
+
+    public List<Player> getPlayers() {
+        return Collections.unmodifiableList(this.players);
+    }
+
+    public GameSettings getSettings() {
+        return this.settings;
+    }
+
+    public void setSettings(GameSettings settings) {
+        this.settings = settings;
+    }
+}

libraries-6/src/main/java/com/baeldung/modelmapper/domain/GameMode.java

@@ -0,0 +1,5 @@
+package com.baeldung.modelmapper.domain;
+
+public enum GameMode {
+    NORMAL, TURBO
+}

libraries-6/src/main/java/com/baeldung/modelmapper/domain/GameSettings.java

@@ -0,0 +1,31 @@
+package com.baeldung.modelmapper.domain;
+
+public class GameSettings {
+
+    private GameMode mode;
+    private int maxPlayers;
+
+    public GameSettings() {
+    }
+
+    public GameSettings(GameMode mode, int maxPlayers) {
+        this.mode = mode;
+        this.maxPlayers = maxPlayers;
+    }
+
+    public GameMode getMode() {
+        return this.mode;
+    }
+
+    public void setMode(GameMode mode) {
+        this.mode = mode;
+    }
+
+    public int getMaxPlayers() {
+        return this.maxPlayers;
+    }
+
+    public void setMaxPlayers(int maxPlayers) {
+        this.maxPlayers = maxPlayers;
+    }
+}

libraries-6/src/main/java/com/baeldung/modelmapper/domain/Player.java

@@ -0,0 +1,41 @@
+package com.baeldung.modelmapper.domain;
+
+public class Player {
+
+    private Long id;
+    private String name;
+
+    private Game currentGame;
+
+    public Player() {
+    }
+
+    public Player(Long id, String name) {
+        this.id = id;
+        this.name = name;
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return this.name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public Game getCurrentGame() {
+        return this.currentGame;
+    }
+
+    public void setCurrentGame(Game currentGame) {
+        this.currentGame = currentGame;
+    }
+}

libraries-6/src/main/java/com/baeldung/modelmapper/dto/GameDTO.java

@@ -0,0 +1,92 @@
+package com.baeldung.modelmapper.dto;
+
+import com.baeldung.modelmapper.domain.GameMode;
+import java.util.List;
+
+public class GameDTO {
+
+    private Long id;
+    private String name;
+    private Long creationTime;
+
+    private String creatorId;
+    private String creator;
+
+    private int totalPlayers;
+    private List<PlayerDTO> players;
+
+    private GameMode mode;
+    private int maxPlayers;
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return this.name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public Long getCreationTime() {
+        return this.creationTime;
+    }
+
+    public void setCreationTime(Long creationTime) {
+        this.creationTime = creationTime;
+    }
+
+    public String getCreatorId() {
+        return this.creatorId;
+    }
+
+    public void setCreatorId(String creatorId) {
+        this.creatorId = creatorId;
+    }
+
+    public String getCreator() {
+        return this.creator;
+    }
+
+    public void setCreator(String creator) {
+        this.creator = creator;
+    }
+
+    public int getTotalPlayers() {
+        return this.totalPlayers;
+    }
+
+    public void setTotalPlayers(int totalPlayers) {
+        this.totalPlayers = totalPlayers;
+    }
+
+    public GameMode getMode() {
+        return this.mode;
+    }
+
+    public void setMode(GameMode mode) {
+        this.mode = mode;
+    }
+
+    public int getMaxPlayers() {
+        return this.maxPlayers;
+    }
+
+    public void setMaxPlayers(int maxPlayers) {
+        this.maxPlayers = maxPlayers;
+    }
+
+    public List<PlayerDTO> getPlayers() {
+        return this.players;
+    }
+
+    public void setPlayers(List<PlayerDTO> players) {
+        this.players = players;
+    }
+}

libraries-6/src/main/java/com/baeldung/modelmapper/dto/PlayerDTO.java

@@ -0,0 +1,33 @@
+package com.baeldung.modelmapper.dto;
+
+public class PlayerDTO {
+
+    private Long id;
+    private String name;
+
+    private GameDTO currentGame;
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return this.name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public GameDTO getCurrentGame() {
+        return this.currentGame;
+    }
+
+    public void setCurrentGame(GameDTO currentGame) {
+        this.currentGame = currentGame;
+    }
+}

libraries-6/src/main/java/com/baeldung/modelmapper/repository/GameRepository.java

@@ -0,0 +1,28 @@
+package com.baeldung.modelmapper.repository;
+
+import com.baeldung.modelmapper.domain.Game;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Sample in-memory Game Repository
+ */
+public class GameRepository {
+
+    private final List<Game> gameStore = new ArrayList<>();
+
+    public GameRepository() {
+        // initialize some test data
+        this.gameStore.add(new Game(1L, "Game 1"));
+        this.gameStore.add(new Game(2L, "Game 2"));
+        this.gameStore.add(new Game(3L, "Game 3"));
+    }
+
+    public Game findById(Long id) {
+        return this.gameStore.stream()
+          .filter(g -> g.getId().equals(id))
+          .findFirst()
+          .orElseThrow(() -> new RuntimeException("No Game found"));
+    }
+
+}