Apply source formatting to samples

spring-boot-samples/pom.xml

@@ -48,6 +48,26 @@
 			<scope>test</scope>
 		</dependency>
 	</dependencies>
+	<build>
+		<plugins>
+			<plugin>
+				<artifactId>maven-eclipse-plugin</artifactId>
+				<configuration>
+					<useProjectReferences>false</useProjectReferences>
+					<additionalConfig>
+						<file>
+							<name>.settings/org.eclipse.jdt.ui.prefs</name>
+							<location>${main.basedir}/eclipse/org.eclipse.jdt.ui.prefs</location>
+						</file>
+						<file>
+							<name>.settings/org.eclipse.jdt.core.prefs</name>
+							<location>${main.basedir}/eclipse/org.eclipse.jdt.core.prefs</location>
+						</file>
+					</additionalConfig>
+				</configuration>
+			</plugin>
+		</plugins>
+	</build>
 	<repositories>
 		<repository>
 			<id>spring-snapshots</id>

spring-boot-samples/spring-boot-sample-websocket/pom.xml

@@ -10,6 +10,7 @@
 		<version>0.5.0.BUILD-SNAPSHOT</version>
 	</parent>
 	<properties>
+		<main.basedir>${basedir}/../..</main.basedir>
 		<java.version>1.7</java.version>
 		<tomcat.version>8.0.0-RC3</tomcat.version>
 	</properties>

spring-boot-samples/spring-boot-sample-websocket/src/main/java/org/springframework/boot/samples/websocket/client/GreetingService.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.boot.samples.websocket.client;
 
 public interface GreetingService {

spring-boot-samples/spring-boot-sample-websocket/src/main/java/org/springframework/boot/samples/websocket/client/SimpleClientWebSocketHandler.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.boot.samples.websocket.client;
 
 import java.util.concurrent.CountDownLatch;
@@ -33,7 +34,8 @@ public class SimpleClientWebSocketHandler extends TextWebSocketHandlerAdapter {
 	private CountDownLatch latch;
 
 	@Autowired
-	public SimpleClientWebSocketHandler(GreetingService greetingService, CountDownLatch latch) {
+	public SimpleClientWebSocketHandler(GreetingService greetingService,
+			CountDownLatch latch) {
 		this.greetingService = greetingService;
 		this.latch = latch;
 	}
@@ -45,10 +47,11 @@ public class SimpleClientWebSocketHandler extends TextWebSocketHandlerAdapter {
 	}
 
 	@Override
-	public void handleTextMessage(WebSocketSession session, TextMessage message) throws Exception {
-		logger.info("Received: " + message + " (" + latch.getCount() + ")");
+	public void handleTextMessage(WebSocketSession session, TextMessage message)
+			throws Exception {
+		this.logger.info("Received: " + message + " (" + this.latch.getCount() + ")");
 		session.close();
-		latch.countDown();
+		this.latch.countDown();
 	}
 
 }

spring-boot-samples/spring-boot-sample-websocket/src/main/java/org/springframework/boot/samples/websocket/client/SimpleGreetingService.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.boot.samples.websocket.client;
 
 public class SimpleGreetingService implements GreetingService {

spring-boot-samples/spring-boot-sample-websocket/src/main/java/org/springframework/boot/samples/websocket/echo/DefaultEchoService.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.boot.samples.websocket.echo;
 
 public class DefaultEchoService implements EchoService {

spring-boot-samples/spring-boot-sample-websocket/src/main/java/org/springframework/boot/samples/websocket/echo/EchoService.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.boot.samples.websocket.echo;
 
 public interface EchoService {

spring-boot-samples/spring-boot-sample-websocket/src/main/java/org/springframework/boot/samples/websocket/echo/EchoWebSocketHandler.java

+/*
+ * Copyright 2002-2013 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.springframework.boot.samples.websocket.echo;
 
 import org.slf4j.Logger;
@@ -29,14 +45,16 @@ public class EchoWebSocketHandler extends TextWebSocketHandlerAdapter {
 	}
 
 	@Override
-	public void handleTextMessage(WebSocketSession session, TextMessage message) throws Exception {
+	public void handleTextMessage(WebSocketSession session, TextMessage message)
+			throws Exception {
 		String echoMessage = this.echoService.getMessage(message.getPayload());
 		logger.debug(echoMessage);
 		session.sendMessage(new TextMessage(echoMessage));
 	}
 
 	@Override
-	public void handleTransportError(WebSocketSession session, Throwable exception) throws Exception {
+	public void handleTransportError(WebSocketSession session, Throwable exception)
+			throws Exception {
 		session.close(CloseStatus.SERVER_ERROR);
 	}
 

spring-boot-samples/spring-boot-sample-websocket/src/main/java/org/springframework/boot/samples/websocket/snake/Direction.java

@@ -14,8 +14,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.boot.samples.websocket.snake;
 
 public enum Direction {
-    NONE, NORTH, SOUTH, EAST, WEST
+	NONE, NORTH, SOUTH, EAST, WEST
 }

spring-boot-samples/spring-boot-sample-websocket/src/main/java/org/springframework/boot/samples/websocket/snake/Location.java

@@ -14,58 +14,60 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.boot.samples.websocket.snake;
-
-import org.springframework.boot.samples.websocket.snake.Direction;
 
+package org.springframework.boot.samples.websocket.snake;
 
 public class Location {
 
-    public int x;
-    public int y;
+	public int x;
+	public int y;
 	public static final int GRID_SIZE = 10;
 	public static final int PLAYFIELD_HEIGHT = 480;
 	public static final int PLAYFIELD_WIDTH = 640;
 
-    public Location(int x, int y) {
-        this.x = x;
-        this.y = y;
-    }
+	public Location(int x, int y) {
+		this.x = x;
+		this.y = y;
+	}
 
-    public Location getAdjacentLocation(Direction direction) {
-        switch (direction) {
-            case NORTH:
-                return new Location(x, y - Location.GRID_SIZE);
-            case SOUTH:
-                return new Location(x, y + Location.GRID_SIZE);
-            case EAST:
-                return new Location(x + Location.GRID_SIZE, y);
-            case WEST:
-                return new Location(x - Location.GRID_SIZE, y);
-            case NONE:
-                // fall through
-            default:
-                return this;
-        }
-    }
+	public Location getAdjacentLocation(Direction direction) {
+		switch (direction) {
+		case NORTH:
+			return new Location(this.x, this.y - Location.GRID_SIZE);
+		case SOUTH:
+			return new Location(this.x, this.y + Location.GRID_SIZE);
+		case EAST:
+			return new Location(this.x + Location.GRID_SIZE, this.y);
+		case WEST:
+			return new Location(this.x - Location.GRID_SIZE, this.y);
+		case NONE:
+			// fall through
+		default:
+			return this;
+		}
+	}
 
-    @Override
-    public boolean equals(Object o) {
-        if (this == o) return true;
-        if (o == null || getClass() != o.getClass()) return false;
+	@Override
+	public boolean equals(Object o) {
+		if (this == o)
+			return true;
+		if (o == null || getClass() != o.getClass())
+			return false;
 
-        Location location = (Location) o;
+		Location location = (Location) o;
 
-        if (x != location.x) return false;
-        if (y != location.y) return false;
+		if (this.x != location.x)
+			return false;
+		if (this.y != location.y)
+			return false;
 
-        return true;
-    }
+		return true;
+	}
 
-    @Override
-    public int hashCode() {
-        int result = x;
-        result = 31 * result + y;
-        return result;
-    }
+	@Override
+	public int hashCode() {
+		int result = this.x;
+		result = 31 * result + this.y;
+		return result;
+	}
 }

spring-boot-samples/spring-boot-sample-websocket/src/main/java/org/springframework/boot/samples/websocket/snake/Snake.java

@@ -14,6 +14,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.boot.samples.websocket.snake;
 
 import java.util.ArrayDeque;
@@ -23,117 +24,116 @@ import java.util.Deque;
 import org.springframework.web.socket.TextMessage;
 import org.springframework.web.socket.WebSocketSession;
 
-
 public class Snake {
 
-    private static final int DEFAULT_LENGTH = 5;
-
-    private final int id;
-    private final WebSocketSession session;
-
-    private Direction direction;
-    private int length = DEFAULT_LENGTH;
-    private Location head;
-    private final Deque<Location> tail = new ArrayDeque<Location>();
-    private final String hexColor;
-
-    public Snake(int id, WebSocketSession session) {
-        this.id = id;
-        this.session = session;
-        this.hexColor = SnakeUtils.getRandomHexColor();
-        resetState();
-    }
-
-    private void resetState() {
-        this.direction = Direction.NONE;
-        this.head = SnakeUtils.getRandomLocation();
-        this.tail.clear();
-        this.length = DEFAULT_LENGTH;
-    }
-
-    private synchronized void kill() throws Exception {
-        resetState();
-        sendMessage("{'type': 'dead'}");
-    }
-
-    private synchronized void reward() throws Exception {
-        length++;
-        sendMessage("{'type': 'kill'}");
-    }
-
-
-    protected void sendMessage(String msg) throws Exception {
-    	session.sendMessage(new TextMessage(msg));
-    }
-
-    public synchronized void update(Collection<Snake> snakes) throws Exception {
-        Location nextLocation = head.getAdjacentLocation(direction);
-        if (nextLocation.x >= SnakeUtils.PLAYFIELD_WIDTH) {
-            nextLocation.x = 0;
-        }
-        if (nextLocation.y >= SnakeUtils.PLAYFIELD_HEIGHT) {
-            nextLocation.y = 0;
-        }
-        if (nextLocation.x < 0) {
-            nextLocation.x = SnakeUtils.PLAYFIELD_WIDTH;
-        }
-        if (nextLocation.y < 0) {
-            nextLocation.y = SnakeUtils.PLAYFIELD_HEIGHT;
-        }
-        if (direction != Direction.NONE) {
-            tail.addFirst(head);
-            if (tail.size() > length) {
-                tail.removeLast();
-            }
-            head = nextLocation;
-        }
-
-        handleCollisions(snakes);
-    }
-
-    private void handleCollisions(Collection<Snake> snakes) throws Exception {
-        for (Snake snake : snakes) {
-            boolean headCollision = id != snake.id && snake.getHead().equals(head);
-            boolean tailCollision = snake.getTail().contains(head);
-            if (headCollision || tailCollision) {
-                kill();
-                if (id != snake.id) {
-                    snake.reward();
-                }
-            }
-        }
-    }
-
-    public synchronized Location getHead() {
-        return head;
-    }
-
-    public synchronized Collection<Location> getTail() {
-        return tail;
-    }
-
-    public synchronized void setDirection(Direction direction) {
-        this.direction = direction;
-    }
-
-    public synchronized String getLocationsJson() {
-        StringBuilder sb = new StringBuilder();
-        sb.append(String.format("{x: %d, y: %d}",
-                Integer.valueOf(head.x), Integer.valueOf(head.y)));
-        for (Location location : tail) {
-            sb.append(',');
-            sb.append(String.format("{x: %d, y: %d}",
-                    Integer.valueOf(location.x), Integer.valueOf(location.y)));
-        }
-        return String.format("{'id':%d,'body':[%s]}",
-                Integer.valueOf(id), sb.toString());
-    }
-
-    public int getId() {
-        return id;
-    }
-
-    public String getHexColor() {
-        return hexColor;
-    }
+	private static final int DEFAULT_LENGTH = 5;
+
+	private final int id;
+	private final WebSocketSession session;
+
+	private Direction direction;
+	private int length = DEFAULT_LENGTH;
+	private Location head;
+	private final Deque<Location> tail = new ArrayDeque<Location>();
+	private final String hexColor;
+
+	public Snake(int id, WebSocketSession session) {
+		this.id = id;
+		this.session = session;
+		this.hexColor = SnakeUtils.getRandomHexColor();
+		resetState();
+	}
+
+	private void resetState() {
+		this.direction = Direction.NONE;
+		this.head = SnakeUtils.getRandomLocation();
+		this.tail.clear();
+		this.length = DEFAULT_LENGTH;
+	}
+
+	private synchronized void kill() throws Exception {
+		resetState();
+		sendMessage("{'type': 'dead'}");
+	}
+
+	private synchronized void reward() throws Exception {
+		this.length++;
+		sendMessage("{'type': 'kill'}");
+	}
+
+	protected void sendMessage(String msg) throws Exception {
+		this.session.sendMessage(new TextMessage(msg));
+	}
+
+	public synchronized void update(Collection<Snake> snakes) throws Exception {
+		Location nextLocation = this.head.getAdjacentLocation(this.direction);
+		if (nextLocation.x >= SnakeUtils.PLAYFIELD_WIDTH) {
+			nextLocation.x = 0;
+		}
+		if (nextLocation.y >= SnakeUtils.PLAYFIELD_HEIGHT) {
+			nextLocation.y = 0;
+		}
+		if (nextLocation.x < 0) {
+			nextLocation.x = SnakeUtils.PLAYFIELD_WIDTH;
+		}
+		if (nextLocation.y < 0) {
+			nextLocation.y = SnakeUtils.PLAYFIELD_HEIGHT;
+		}
+		if (this.direction != Direction.NONE) {
+			this.tail.addFirst(this.head);
+			if (this.tail.size() > this.length) {
+				this.tail.removeLast();
+			}
+			this.head = nextLocation;
+		}
+
+		handleCollisions(snakes);
+	}
+
+	private void handleCollisions(Collection<Snake> snakes) throws Exception {
+		for (Snake snake : snakes) {
+			boolean headCollision = this.id != snake.id
+					&& snake.getHead().equals(this.head);
+			boolean tailCollision = snake.getTail().contains(this.head);
+			if (headCollision || tailCollision) {
+				kill();
+				if (this.id != snake.id) {
+					snake.reward();
+				}
+			}
+		}
+	}
+
+	public synchronized Location getHead() {
+		return this.head;
+	}
+
+	public synchronized Collection<Location> getTail() {
+		return this.tail;
+	}
+
+	public synchronized void setDirection(Direction direction) {
+		this.direction = direction;
+	}
+
+	public synchronized String getLocationsJson() {
+		StringBuilder sb = new StringBuilder();
+		sb.append(String.format("{x: %d, y: %d}", Integer.valueOf(this.head.x),
+				Integer.valueOf(this.head.y)));
+		for (Location location : this.tail) {
+			sb.append(',');
+			sb.append(String.format("{x: %d, y: %d}", Integer.valueOf(location.x),
+					Integer.valueOf(location.y)));
+		}
+		return String.format("{'id':%d,'body':[%s]}", Integer.valueOf(this.id),
+				sb.toString());
+	}
+
+	public int getId() {
+		return this.id;
+	}
+
+	public String getHexColor() {
+		return this.hexColor;
+	}
 }

spring-boot-samples/spring-boot-sample-websocket/src/main/java/org/springframework/boot/samples/websocket/snake/SnakeTimer.java

@@ -14,6 +14,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.boot.samples.websocket.snake;
 
 import java.util.Collection;
@@ -32,84 +33,77 @@ import org.apache.juli.logging.LogFactory;
  */
 public class SnakeTimer {
 
-    private static final Log log =
-            LogFactory.getLog(SnakeTimer.class);
-
-    private static Timer gameTimer = null;
-
-    private static final long TICK_DELAY = 100;
-
-    private static final ConcurrentHashMap<Integer, Snake> snakes =
-            new ConcurrentHashMap<Integer, Snake>();
-
-    public static synchronized void addSnake(Snake snake) {
-        if (snakes.size() == 0) {
-            startTimer();
-        }
-        snakes.put(Integer.valueOf(snake.getId()), snake);
-    }
-
-
-    public static Collection<Snake> getSnakes() {
-        return Collections.unmodifiableCollection(snakes.values());
-    }
-
-
-    public static synchronized void removeSnake(Snake snake) {
-        snakes.remove(Integer.valueOf(snake.getId()));
-        if (snakes.size() == 0) {
-            stopTimer();
-        }
-    }
-
-
-    public static void tick() throws Exception {
-        StringBuilder sb = new StringBuilder();
-        for (Iterator<Snake> iterator = SnakeTimer.getSnakes().iterator();
-                iterator.hasNext();) {
-            Snake snake = iterator.next();
-            snake.update(SnakeTimer.getSnakes());
-            sb.append(snake.getLocationsJson());
-            if (iterator.hasNext()) {
-                sb.append(',');
-            }
-        }
-        broadcast(String.format("{'type': 'update', 'data' : [%s]}",
-                sb.toString()));
-    }
-
-    public static void broadcast(String message) throws Exception {
-        Collection<Snake> snakes = new CopyOnWriteArrayList<>(SnakeTimer.getSnakes());
-        for (Snake snake : snakes) {
-            try {
-                snake.sendMessage(message);
-            }
-            catch (Throwable ex) {
-                // if Snake#sendMessage fails the client is removed
-                removeSnake(snake);
-            }
-        }
-    }
-
-
-    public static void startTimer() {
-        gameTimer = new Timer(SnakeTimer.class.getSimpleName() + " Timer");
-        gameTimer.scheduleAtFixedRate(new TimerTask() {
-            @Override
-            public void run() {
-                try {
-                    tick();
-                } catch (Throwable e) {
-                    log.error("Caught to prevent timer from shutting down", e);
-                }
-            }
-        }, TICK_DELAY, TICK_DELAY);
-    }
-
-
-    public static void stopTimer() {
-        if (gameTimer != null) {
-            gameTimer.cancel();
-        }
-    }
+	private static final Log log = LogFactory.getLog(SnakeTimer.class);
+
+	private static Timer gameTimer = null;
+
+	private static final long TICK_DELAY = 100;
+
+	private static final ConcurrentHashMap<Integer, Snake> snakes = new ConcurrentHashMap<Integer, Snake>();
+
+	public static synchronized void addSnake(Snake snake) {
+		if (snakes.size() == 0) {
+			startTimer();
+		}
+		snakes.put(Integer.valueOf(snake.getId()), snake);
+	}
+
+	public static Collection<Snake> getSnakes() {
+		return Collections.unmodifiableCollection(snakes.values());
+	}
+
+	public static synchronized void removeSnake(Snake snake) {
+		snakes.remove(Integer.valueOf(snake.getId()));
+		if (snakes.size() == 0) {
+			stopTimer();
+		}
+	}
+
+	public static void tick() throws Exception {
+		StringBuilder sb = new StringBuilder();
+		for (Iterator<Snake> iterator = SnakeTimer.getSnakes().iterator(); iterator
+				.hasNext();) {
+			Snake snake = iterator.next();
+			snake.update(SnakeTimer.getSnakes());
+			sb.append(snake.getLocationsJson());
+			if (iterator.hasNext()) {
+				sb.append(',');
+			}
+		}
+		broadcast(String.format("{'type': 'update', 'data' : [%s]}", sb.toString()));
+	}
+
+	public static void broadcast(String message) throws Exception {
+		Collection<Snake> snakes = new CopyOnWriteArrayList<>(SnakeTimer.getSnakes());
+		for (Snake snake : snakes) {
+			try {
+				snake.sendMessage(message);
+			}
+			catch (Throwable ex) {
+				// if Snake#sendMessage fails the client is removed
+				removeSnake(snake);
+			}
+		}
+	}
+
+	public static void startTimer() {
+		gameTimer = new Timer(SnakeTimer.class.getSimpleName() + " Timer");
+		gameTimer.scheduleAtFixedRate(new TimerTask() {
+			@Override
+			public void run() {
+				try {
+					tick();
+				}
+				catch (Throwable e) {
+					log.error("Caught to prevent timer from shutting down", e);
+				}
+			}
+		}, TICK_DELAY, TICK_DELAY);
+	}
+
+	public static void stopTimer() {
+		if (gameTimer != null) {
+			gameTimer.cancel();
+		}
+	}
 }

spring-boot-samples/spring-boot-sample-websocket/src/main/java/org/springframework/boot/samples/websocket/snake/SnakeUtils.java

@@ -14,6 +14,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.boot.samples.websocket.snake;
 
 import java.awt.Color;
@@ -21,36 +22,33 @@ import java.util.Random;
 
 public class SnakeUtils {
 
-    public static final int PLAYFIELD_WIDTH = 640;
-    public static final int PLAYFIELD_HEIGHT = 480;
-    public static final int GRID_SIZE = 10;
-
-    private static final Random random = new Random();
-
-
-    public static String getRandomHexColor() {
-        float hue = random.nextFloat();
-        // sat between 0.1 and 0.3
-        float saturation = (random.nextInt(2000) + 1000) / 10000f;
-        float luminance = 0.9f;
-        Color color = Color.getHSBColor(hue, saturation, luminance);
-        return '#' + Integer.toHexString(
-                (color.getRGB() & 0xffffff) | 0x1000000).substring(1);
-    }
-
-
-    public static Location getRandomLocation() {
-        int x = roundByGridSize(random.nextInt(PLAYFIELD_WIDTH));
-        int y = roundByGridSize(random.nextInt(PLAYFIELD_HEIGHT));
-        return new Location(x, y);
-    }
-
-
-    private static int roundByGridSize(int value) {
-        value = value + (GRID_SIZE / 2);
-        value = value / GRID_SIZE;
-        value = value * GRID_SIZE;
-        return value;
-    }
+	public static final int PLAYFIELD_WIDTH = 640;
+	public static final int PLAYFIELD_HEIGHT = 480;
+	public static final int GRID_SIZE = 10;
+
+	private static final Random random = new Random();
+
+	public static String getRandomHexColor() {
+		float hue = random.nextFloat();
+		// sat between 0.1 and 0.3
+		float saturation = (random.nextInt(2000) + 1000) / 10000f;
+		float luminance = 0.9f;
+		Color color = Color.getHSBColor(hue, saturation, luminance);
+		return '#' + Integer.toHexString((color.getRGB() & 0xffffff) | 0x1000000)
+				.substring(1);
+	}
+
+	public static Location getRandomLocation() {
+		int x = roundByGridSize(random.nextInt(PLAYFIELD_WIDTH));
+		int y = roundByGridSize(random.nextInt(PLAYFIELD_HEIGHT));
+		return new Location(x, y);
+	}
+
+	private static int roundByGridSize(int value) {
+		value = value + (GRID_SIZE / 2);
+		value = value / GRID_SIZE;
+		value = value * GRID_SIZE;
+		return value;
+	}
 
 }

spring-boot-samples/spring-boot-sample-websocket/src/main/java/org/springframework/boot/samples/websocket/snake/SnakeWebSocketHandler.java

@@ -14,6 +14,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.boot.samples.websocket.snake;
 
 import java.awt.Color;
@@ -28,85 +29,84 @@ import org.springframework.web.socket.adapter.TextWebSocketHandlerAdapter;
 
 public class SnakeWebSocketHandler extends TextWebSocketHandlerAdapter {
 
-    public static final int PLAYFIELD_WIDTH = 640;
-    public static final int PLAYFIELD_HEIGHT = 480;
-    public static final int GRID_SIZE = 10;
-
-    private static final AtomicInteger snakeIds = new AtomicInteger(0);
-    private static final Random random = new Random();
-
-
-    private final int id;
-    private Snake snake;
-
-    public static String getRandomHexColor() {
-        float hue = random.nextFloat();
-        // sat between 0.1 and 0.3
-        float saturation = (random.nextInt(2000) + 1000) / 10000f;
-        float luminance = 0.9f;
-        Color color = Color.getHSBColor(hue, saturation, luminance);
-        return '#' + Integer.toHexString(
-                (color.getRGB() & 0xffffff) | 0x1000000).substring(1);
-    }
-
-
-    public static Location getRandomLocation() {
-        int x = roundByGridSize(random.nextInt(PLAYFIELD_WIDTH));
-        int y = roundByGridSize(random.nextInt(PLAYFIELD_HEIGHT));
-        return new Location(x, y);
-    }
-
-
-    private static int roundByGridSize(int value) {
-        value = value + (GRID_SIZE / 2);
-        value = value / GRID_SIZE;
-        value = value * GRID_SIZE;
-        return value;
-    }
-
-    public SnakeWebSocketHandler() {
-        this.id = snakeIds.getAndIncrement();
-    }
-
-
-    @Override
+	public static final int PLAYFIELD_WIDTH = 640;
+	public static final int PLAYFIELD_HEIGHT = 480;
+	public static final int GRID_SIZE = 10;
+
+	private static final AtomicInteger snakeIds = new AtomicInteger(0);
+	private static final Random random = new Random();
+
+	private final int id;
+	private Snake snake;
+
+	public static String getRandomHexColor() {
+		float hue = random.nextFloat();
+		// sat between 0.1 and 0.3
+		float saturation = (random.nextInt(2000) + 1000) / 10000f;
+		float luminance = 0.9f;
+		Color color = Color.getHSBColor(hue, saturation, luminance);
+		return '#' + Integer.toHexString((color.getRGB() & 0xffffff) | 0x1000000)
+				.substring(1);
+	}
+
+	public static Location getRandomLocation() {
+		int x = roundByGridSize(random.nextInt(PLAYFIELD_WIDTH));
+		int y = roundByGridSize(random.nextInt(PLAYFIELD_HEIGHT));
+		return new Location(x, y);
+	}
+
+	private static int roundByGridSize(int value) {
+		value = value + (GRID_SIZE / 2);
+		value = value / GRID_SIZE;
+		value = value * GRID_SIZE;
+		return value;
+	}
+
+	public SnakeWebSocketHandler() {
+		this.id = snakeIds.getAndIncrement();
+	}
+
+	@Override
 	public void afterConnectionEstablished(WebSocketSession session) throws Exception {
-        this.snake = new Snake(id, session);
-        SnakeTimer.addSnake(snake);
-        StringBuilder sb = new StringBuilder();
-        for (Iterator<Snake> iterator = SnakeTimer.getSnakes().iterator();
-                iterator.hasNext();) {
-            Snake snake = iterator.next();
-            sb.append(String.format("{id: %d, color: '%s'}",
-                    Integer.valueOf(snake.getId()), snake.getHexColor()));
-            if (iterator.hasNext()) {
-                sb.append(',');
-            }
-        }
-        SnakeTimer.broadcast(String.format("{'type': 'join','data':[%s]}",
-                sb.toString()));
-    }
-
-
-    @Override
-	protected void handleTextMessage(WebSocketSession session, TextMessage message) throws Exception {
-    	String payload = message.getPayload();
-        if ("west".equals(payload)) {
-            snake.setDirection(Direction.WEST);
-        } else if ("north".equals(payload)) {
-            snake.setDirection(Direction.NORTH);
-        } else if ("east".equals(payload)) {
-            snake.setDirection(Direction.EAST);
-        } else if ("south".equals(payload)) {
-            snake.setDirection(Direction.SOUTH);
-        }
-    }
-
-
-    @Override
-	public void afterConnectionClosed(WebSocketSession session, CloseStatus status) throws Exception {
-        SnakeTimer.removeSnake(snake);
-        SnakeTimer.broadcast(String.format("{'type': 'leave', 'id': %d}",
-                Integer.valueOf(id)));
-    }
+		this.snake = new Snake(this.id, session);
+		SnakeTimer.addSnake(this.snake);
+		StringBuilder sb = new StringBuilder();
+		for (Iterator<Snake> iterator = SnakeTimer.getSnakes().iterator(); iterator
+				.hasNext();) {
+			Snake snake = iterator.next();
+			sb.append(String.format("{id: %d, color: '%s'}",
+					Integer.valueOf(snake.getId()), snake.getHexColor()));
+			if (iterator.hasNext()) {
+				sb.append(',');
+			}
+		}
+		SnakeTimer
+				.broadcast(String.format("{'type': 'join','data':[%s]}", sb.toString()));
+	}
+
+	@Override
+	protected void handleTextMessage(WebSocketSession session, TextMessage message)
+			throws Exception {
+		String payload = message.getPayload();
+		if ("west".equals(payload)) {
+			this.snake.setDirection(Direction.WEST);
+		}
+		else if ("north".equals(payload)) {
+			this.snake.setDirection(Direction.NORTH);
+		}
+		else if ("east".equals(payload)) {
+			this.snake.setDirection(Direction.EAST);
+		}
+		else if ("south".equals(payload)) {
+			this.snake.setDirection(Direction.SOUTH);
+		}
+	}
+
+	@Override
+	public void afterConnectionClosed(WebSocketSession session, CloseStatus status)
+			throws Exception {
+		SnakeTimer.removeSnake(this.snake);
+		SnakeTimer.broadcast(String.format("{'type': 'leave', 'id': %d}",
+				Integer.valueOf(this.id)));
+	}
 }

spring-boot-samples/spring-boot-sample-websocket/src/test/java/org/springframework/boot/samples/websocket/echo/SampleWebSocketsApplicationTests.java

@@ -13,9 +13,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.boot.samples.websocket.echo;
 
-import static org.junit.Assert.assertEquals;
+package org.springframework.boot.samples.websocket.echo;
 
 import java.util.concurrent.Callable;
 import java.util.concurrent.CountDownLatch;
@@ -40,6 +39,8 @@ import org.springframework.context.annotation.Configuration;
 import org.springframework.web.socket.client.WebSocketConnectionManager;
 import org.springframework.web.socket.client.endpoint.StandardWebSocketClient;
 
+import static org.junit.Assert.assertEquals;
+
 public class SampleWebSocketsApplicationTests {
 
 	private static Log logger = LogFactory.getLog(SampleWebSocketsApplicationTests.class);
@@ -55,7 +56,7 @@ public class SampleWebSocketsApplicationTests {
 						new Callable<ConfigurableApplicationContext>() {
 							@Override
 							public ConfigurableApplicationContext call() throws Exception {
-								return (ConfigurableApplicationContext) SpringApplication
+								return SpringApplication
 										.run(SampleWebSocketsApplication.class);
 							}
 						});
@@ -71,7 +72,8 @@ public class SampleWebSocketsApplicationTests {
 
 	@Test
 	public void runAndWait() throws Exception {
-		ConfigurableApplicationContext context = (ConfigurableApplicationContext) SpringApplication.run(ClientConfiguration.class, "--spring.main.web_environment=false");
+		ConfigurableApplicationContext context = SpringApplication.run(
+				ClientConfiguration.class, "--spring.main.web_environment=false");
 		long count = context.getBean(ClientConfiguration.class).latch.getCount();
 		context.close();
 		assertEquals(0, count);
@@ -84,15 +86,16 @@ public class SampleWebSocketsApplicationTests {
 
 		@Override
 		public void run(String... args) throws Exception {
-			logger.info("Waiting for response: latch=" + latch.getCount());
-			latch.await(10, TimeUnit.SECONDS);
-			logger.info("Got response: latch=" + latch.getCount());
+			logger.info("Waiting for response: latch=" + this.latch.getCount());
+			this.latch.await(10, TimeUnit.SECONDS);
+			logger.info("Got response: latch=" + this.latch.getCount());
 		}
 
 		@Bean
 		public WebSocketConnectionManager wsConnectionManager() {
 
-			WebSocketConnectionManager manager = new WebSocketConnectionManager(client(), handler(), WS_URI);
+			WebSocketConnectionManager manager = new WebSocketConnectionManager(client(),
+					handler(), WS_URI);
 			manager.setAutoStartup(true);
 
 			return manager;
@@ -105,7 +108,7 @@ public class SampleWebSocketsApplicationTests {
 
 		@Bean
 		public SimpleClientWebSocketHandler handler() {
-			return new SimpleClientWebSocketHandler(greetingService(), latch);
+			return new SimpleClientWebSocketHandler(greetingService(), this.latch);
 		}
 
 		@Bean

spring-boot-samples/spring-boot-sample-websocket/src/test/java/org/springframework/boot/samples/websocket/snake/SnakeTimerTests.java

-package org.springframework.boot.samples.websocket.snake;
+/*
+ * Copyright 2002-2013 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 
-import org.junit.Test;
+package org.springframework.boot.samples.websocket.snake;
 
 import java.io.IOException;
 
+import org.junit.Test;
+
 import static org.hamcrest.CoreMatchers.is;
 import static org.junit.Assert.assertThat;
 import static org.mockito.Matchers.anyString;
@@ -12,13 +28,13 @@ import static org.mockito.Mockito.mock;
 
 public class SnakeTimerTests {
 
-    @Test
-    public void removeDysfunctionalSnakes() throws Exception {
-        Snake snake = mock(Snake.class);
-        doThrow(new IOException()).when(snake).sendMessage(anyString());
-        SnakeTimer.addSnake(snake);
+	@Test
+	public void removeDysfunctionalSnakes() throws Exception {
+		Snake snake = mock(Snake.class);
+		doThrow(new IOException()).when(snake).sendMessage(anyString());
+		SnakeTimer.addSnake(snake);
 
-        SnakeTimer.broadcast("");
-        assertThat(SnakeTimer.getSnakes().size(), is(0));
-    }
+		SnakeTimer.broadcast("");
+		assertThat(SnakeTimer.getSnakes().size(), is(0));
+	}
 }