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

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+/*
+ * 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 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;
+import org.springframework.messaging.simp.SimpMessageSendingOperations;
+import org.springframework.messaging.simp.annotation.SubscribeMapping;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.RequestMapping;
+
+/**
+ * Controller for managing {@link Message} instances.
+ *
+ * @author Rob Winch
+ *
+ */
+@Controller
+@RequestMapping("/")
+public class MessageController {
+	private SimpMessageSendingOperations messagingTemplate;
+	private ActiveWebSocketUserRepository activeUserRepository;
+
+	@Autowired
+	public MessageController(ActiveWebSocketUserRepository activeUserRepository,
+			SimpMessageSendingOperations messagingTemplate) {
+		this.activeUserRepository = activeUserRepository;
+		this.messagingTemplate = messagingTemplate;
+	}
+
+	@RequestMapping("/")
+	public String im() {
+		return "index";
+	}
+
+	@MessageMapping("/im")
+	public void im(InstantMessage im, @CurrentUser User currentUser) {
+		im.setFrom(currentUser.getEmail());
+		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 this.activeUserRepository.findAllActiveUsers();
+	}
+}