Prepare codebase to adhere to Checkstyle rules

Issue gh-393

samples/websocket/src/main/java/sample/Application.java

@@ -1,18 +1,19 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2014-2016 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
+ * 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
+ *      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.
+ * 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 sample;
 
 import org.springframework.boot.SpringApplication;

samples/websocket/src/main/java/sample/config/DataSourceConfig.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2014-2016 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.
@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample.config;
 
 import javax.sql.DataSource;

samples/websocket/src/main/java/sample/config/H2Initializer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2014-2016 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.
@@ -13,9 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample.config;
 
 import org.h2.server.web.WebServlet;
+
 import org.springframework.boot.context.embedded.ServletRegistrationBean;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;

samples/websocket/src/main/java/sample/config/WebSecurityConfig.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2014-2016 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.
@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample.config;
 
 import org.springframework.beans.factory.annotation.Autowired;
@@ -64,4 +65,4 @@ public class WebSecurityConfig
 	public SecurityEvaluationContextExtension securityEvaluationContextExtension() {
 		return new SecurityEvaluationContextExtension();
 	}
-}
+}

samples/websocket/src/main/java/sample/config/WebSocketConfig.java

@@ -1,18 +1,19 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2014-2016 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
+ * 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
+ *      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.
+ * 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 sample.config;
 
 import org.springframework.context.annotation.Configuration;
@@ -28,7 +29,7 @@ import org.springframework.web.socket.config.annotation.StompEndpointRegistry;
 @EnableScheduling
 @EnableWebSocketMessageBroker
 public class WebSocketConfig
-	  extends AbstractSessionWebSocketMessageBrokerConfigurer<ExpiringSession> { // <1>
+		extends AbstractSessionWebSocketMessageBrokerConfigurer<ExpiringSession> { // <1>
 
 	protected void configureStompEndpoints(StompEndpointRegistry registry) { // <2>
 		registry.addEndpoint("/messages")
@@ -40,4 +41,4 @@ public class WebSocketConfig
 		registry.setApplicationDestinationPrefixes("/app");
 	}
 }
-// end::class[]
+// end::class[]

samples/websocket/src/main/java/sample/config/WebSocketHandlersConfig.java

@@ -1,28 +1,29 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2014-2016 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
+ * 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
+ *      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.
+ * 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 sample.config;
 
+import sample.data.ActiveWebSocketUserRepository;
+import sample.websocket.WebSocketConnectHandler;
+import sample.websocket.WebSocketDisconnectHandler;
+
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.messaging.simp.SimpMessageSendingOperations;
 import org.springframework.session.ExpiringSession;
-import sample.data.ActiveWebSocketUserRepository;
-import sample.websocket.WebSocketConnectHandler;
-import sample.websocket.WebSocketDisconnectHandler;
-
 /**
  * These handlers are separated from WebSocketConfig because they are specific to this application and do not demonstrate a typical Spring Session setup.
  *

samples/websocket/src/main/java/sample/config/WebSocketSecurityConfig.java

@@ -1,18 +1,19 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2014-2016 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
+ * 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
+ *      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.
+ * 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 sample.config;
 
 import org.springframework.context.annotation.Configuration;
@@ -29,9 +30,9 @@ public class WebSocketSecurityConfig extends AbstractSecurityWebSocketMessageBro
 	@Override
 	protected void configureInbound(MessageSecurityMetadataSourceRegistry messages) {
 		messages
-			.simpMessageDestMatchers("/queue/**","/topic/**").denyAll()
-			.simpSubscribeDestMatchers("/queue/**/*-user*","/topic/**/*-user*").denyAll()
+			.simpMessageDestMatchers("/queue/**", "/topic/**").denyAll()
+			.simpSubscribeDestMatchers("/queue/**/*-user*", "/topic/**/*-user*").denyAll()
 			.anyMessage().authenticated();
 	}
 	// @formatter:on
-}
+}

samples/websocket/src/main/java/sample/data/ActiveWebSocketUser.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2014-2016 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.
@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample.data;
 
 import java.util.Calendar;
@@ -29,7 +30,8 @@ public class ActiveWebSocketUser {
 
 	private Calendar connectionTime;
 
-	public ActiveWebSocketUser() {}
+	public ActiveWebSocketUser() {
+	}
 
 	public ActiveWebSocketUser(String id, String username, Calendar connectionTime) {
 		super();
@@ -39,7 +41,7 @@ public class ActiveWebSocketUser {
 	}
 
 	public String getUsername() {
-		return username;
+		return this.username;
 	}
 
 	public void setUsername(String username) {
@@ -47,7 +49,7 @@ public class ActiveWebSocketUser {
 	}
 
 	public Calendar getConnectionTime() {
-		return connectionTime;
+		return this.connectionTime;
 	}
 
 	public void setConnectionTime(Calendar connectionTime) {

samples/websocket/src/main/java/sample/data/ActiveWebSocketUserRepository.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2014-2016 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.
@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample.data;
 
 import java.util.List;
@@ -20,7 +21,7 @@ import java.util.List;
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.data.repository.CrudRepository;
 
-public interface ActiveWebSocketUserRepository extends CrudRepository<ActiveWebSocketUser,String> {
+public interface ActiveWebSocketUserRepository extends CrudRepository<ActiveWebSocketUser, String> {
 
 	@Query("select DISTINCT(u.username) from ActiveWebSocketUser u where u.username != ?#{principal?.username}")
 	List<String> findAllActiveUsers();

samples/websocket/src/main/java/sample/data/InstantMessage.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2014-2016 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.
@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample.data;
 
 import java.util.Calendar;
@@ -27,7 +28,7 @@ public class InstantMessage {
 	private Calendar created = Calendar.getInstance();
 
 	public String getTo() {
-		return to;
+		return this.to;
 	}
 
 	public void setTo(String to) {
@@ -35,7 +36,7 @@ public class InstantMessage {
 	}
 
 	public String getFrom() {
-		return from;
+		return this.from;
 	}
 
 	public void setFrom(String from) {
@@ -43,7 +44,7 @@ public class InstantMessage {
 	}
 
 	public String getMessage() {
-		return message;
+		return this.message;
 	}
 
 	public void setMessage(String message) {
@@ -51,7 +52,7 @@ public class InstantMessage {
 	}
 
 	public Calendar getCreated() {
-		return created;
+		return this.created;
 	}
 
 	public void setCreated(Calendar created) {

samples/websocket/src/main/java/sample/data/User.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2014-2016 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.
@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample.data;
 
 import java.io.Serializable;
@@ -25,6 +26,7 @@ import javax.persistence.Id;
 
 import org.hibernate.validator.constraints.Email;
 import org.hibernate.validator.constraints.NotEmpty;
+
 import org.springframework.security.crypto.password.PasswordEncoder;
 
 /**
@@ -52,13 +54,14 @@ public class User implements Serializable {
 
 	@Email(message = "Please provide a valid email address.")
 	@NotEmpty(message = "Email is required.")
-	@Column(unique=true, nullable = false)
+	@Column(unique = true, nullable = false)
 	private String email;
 
 	@NotEmpty(message = "Password is required.")
 	private String password;
 
-	public User() {}
+	public User() {
+	}
 
 	public User(User user) {
 		this.id = user.id;
@@ -69,7 +72,7 @@ public class User implements Serializable {
 	}
 
 	public String getPassword() {
-		return password;
+		return this.password;
 	}
 
 	public void setPassword(String password) {
@@ -77,7 +80,7 @@ public class User implements Serializable {
 	}
 
 	public Long getId() {
-		return id;
+		return this.id;
 	}
 
 	public void setId(Long id) {
@@ -85,7 +88,7 @@ public class User implements Serializable {
 	}
 
 	public String getFirstName() {
-		return firstName;
+		return this.firstName;
 	}
 
 	public void setFirstName(String firstName) {
@@ -93,7 +96,7 @@ public class User implements Serializable {
 	}
 
 	public String getLastName() {
-		return lastName;
+		return this.lastName;
 	}
 
 	public void setLastName(String lastName) {
@@ -101,7 +104,7 @@ public class User implements Serializable {
 	}
 
 	public String getEmail() {
-		return email;
+		return this.email;
 	}
 
 	public void setEmail(String email) {
@@ -109,4 +112,4 @@ public class User implements Serializable {
 	}
 
 	private static final long serialVersionUID = 2738859149330833739L;
-}
+}

samples/websocket/src/main/java/sample/data/UserRepository.java

@@ -1,18 +1,19 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2014-2016 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
+ * 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
+ *      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.
+ * 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 sample.data;
 
 import org.springframework.data.repository.CrudRepository;

samples/websocket/src/main/java/sample/mvc/CsrfController.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2014-2016 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 sample.mvc;
 
 import org.springframework.security.web.csrf.CsrfToken;

samples/websocket/src/main/java/sample/mvc/MessageController.java

@@ -1,22 +1,28 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2014-2016 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
+ * 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
+ *      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.
+ * 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 sample.mvc;
 
 import java.util.List;
 
+import sample.data.ActiveWebSocketUserRepository;
+import sample.data.InstantMessage;
+import sample.data.User;
+import sample.security.CurrentUser;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.messaging.Message;
 import org.springframework.messaging.handler.annotation.MessageMapping;
@@ -25,11 +31,6 @@ import org.springframework.messaging.simp.annotation.SubscribeMapping;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.RequestMapping;
 
-import sample.data.ActiveWebSocketUserRepository;
-import sample.data.InstantMessage;
-import sample.data.User;
-import sample.security.CurrentUser;
-
 /**
  * Controller for managing {@link Message} instances.
  *
@@ -43,7 +44,7 @@ public class MessageController {
 	private ActiveWebSocketUserRepository activeUserRepository;
 
 	@Autowired
-	public MessageController(ActiveWebSocketUserRepository activeUserRepository,SimpMessageSendingOperations messagingTemplate) {
+	public MessageController(ActiveWebSocketUserRepository activeUserRepository, SimpMessageSendingOperations messagingTemplate) {
 		this.activeUserRepository = activeUserRepository;
 		this.messagingTemplate = messagingTemplate;
 	}
@@ -56,12 +57,12 @@ public class MessageController {
 	@MessageMapping("/im")
 	public void im(InstantMessage im, @CurrentUser User currentUser) {
 		im.setFrom(currentUser.getEmail());
-		messagingTemplate.convertAndSendToUser(im.getTo(),"/queue/messages",im);
-		messagingTemplate.convertAndSendToUser(im.getFrom(),"/queue/messages",im);
+		this.messagingTemplate.convertAndSendToUser(im.getTo(), "/queue/messages", im);
+		this.messagingTemplate.convertAndSendToUser(im.getFrom(), "/queue/messages", im);
 	}
 
 	@SubscribeMapping("/users")
 	public List<String> subscribeMessages() throws Exception {
-		return activeUserRepository.findAllActiveUsers();
+		return this.activeUserRepository.findAllActiveUsers();
 	}
 }

samples/websocket/src/main/java/sample/security/CurrentUser.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2014-2016 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.
@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample.security;
 
 import java.lang.annotation.Documented;

samples/websocket/src/main/java/sample/security/UserRepositoryUserDetailsService.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2014-2016 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.
@@ -13,18 +13,20 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample.security;
 
 import java.util.Collection;
 
+import sample.data.User;
+import sample.data.UserRepository;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.security.core.GrantedAuthority;
 import org.springframework.security.core.authority.AuthorityUtils;
 import org.springframework.security.core.userdetails.UserDetails;
 import org.springframework.security.core.userdetails.UserDetailsService;
 import org.springframework.security.core.userdetails.UsernameNotFoundException;
-import sample.data.User;
-import sample.data.UserRepository;
 import org.springframework.stereotype.Service;
 
 /**
@@ -45,8 +47,8 @@ public class UserRepositoryUserDetailsService implements UserDetailsService {
 	 */
 	public UserDetails loadUserByUsername(String username)
 			throws UsernameNotFoundException {
-		User user = userRepository.findByEmail(username);
-		if(user == null) {
+		User user = this.userRepository.findByEmail(username);
+		if (user == null) {
 			throw new UsernameNotFoundException("Could not find user " + username);
 		}
 		return new CustomUserDetails(user);

samples/websocket/src/main/java/sample/websocket/WebSocketConnectHandler.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2014-2016 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.
@@ -13,21 +13,22 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample.websocket;
 
 import java.security.Principal;
 import java.util.Arrays;
 import java.util.Calendar;
 
+import sample.data.ActiveWebSocketUser;
+import sample.data.ActiveWebSocketUserRepository;
+
 import org.springframework.context.ApplicationListener;
 import org.springframework.messaging.MessageHeaders;
 import org.springframework.messaging.simp.SimpMessageHeaderAccessor;
 import org.springframework.messaging.simp.SimpMessageSendingOperations;
 import org.springframework.web.socket.messaging.SessionConnectEvent;
 
-import sample.data.ActiveWebSocketUser;
-import sample.data.ActiveWebSocketUserRepository;
-
 public class WebSocketConnectHandler<S> implements ApplicationListener<SessionConnectEvent> {
 	private ActiveWebSocketUserRepository repository;
 	private SimpMessageSendingOperations messagingTemplate;
@@ -41,11 +42,11 @@ public class WebSocketConnectHandler<S> implements ApplicationListener<SessionCo
 	public void onApplicationEvent(SessionConnectEvent event) {
 		MessageHeaders headers = event.getMessage().getHeaders();
 		Principal user = SimpMessageHeaderAccessor.getUser(headers);
-		if(user == null) {
+		if (user == null) {
 			return;
 		}
 		String id = SimpMessageHeaderAccessor.getSessionId(headers);
-		repository.save(new ActiveWebSocketUser(id, user.getName(), Calendar.getInstance()));
-		messagingTemplate.convertAndSend("/topic/friends/signin", Arrays.asList(user.getName()));
+		this.repository.save(new ActiveWebSocketUser(id, user.getName(), Calendar.getInstance()));
+		this.messagingTemplate.convertAndSend("/topic/friends/signin", Arrays.asList(user.getName()));
 	}
-}
+}

samples/websocket/src/main/java/sample/websocket/WebSocketDisconnectHandler.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2014-2016 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.
@@ -13,17 +13,18 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample.websocket;
 
 import java.util.Arrays;
 
+import sample.data.ActiveWebSocketUser;
+import sample.data.ActiveWebSocketUserRepository;
+
 import org.springframework.context.ApplicationListener;
 import org.springframework.messaging.simp.SimpMessageSendingOperations;
 import org.springframework.web.socket.messaging.SessionDisconnectEvent;
 
-import sample.data.ActiveWebSocketUser;
-import sample.data.ActiveWebSocketUserRepository;
-
 public class WebSocketDisconnectHandler<S> implements ApplicationListener<SessionDisconnectEvent> {
 	private ActiveWebSocketUserRepository repository;
 	private SimpMessageSendingOperations messagingTemplate;
@@ -36,16 +37,16 @@ public class WebSocketDisconnectHandler<S> implements ApplicationListener<Sessio
 
 	public void onApplicationEvent(SessionDisconnectEvent event) {
 		String id = event.getSessionId();
-		if(id == null) {
+		if (id == null) {
 			return;
 		}
-		ActiveWebSocketUser user = repository.findOne(id);
-		if(user == null) {
+		ActiveWebSocketUser user = this.repository.findOne(id);
+		if (user == null) {
 			return;
 		}
 
-		repository.delete(id);
-		messagingTemplate.convertAndSend("/topic/friends/signout", Arrays.asList(user.getUsername()));
+		this.repository.delete(id);
+		this.messagingTemplate.convertAndSend("/topic/friends/signout", Arrays.asList(user.getUsername()));
 
 	}
-}
+}