Add Spring WebSocket example
This commit is contained in:
David Morley
commit
3896065b80
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@ -17,6 +17,28 @@
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<artifactId>spring-webmvc</artifactId>
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<version>${org.springframework.version}</version>
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</dependency>
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<dependency>
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<groupId>org.springframework</groupId>
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<artifactId>spring-websocket</artifactId>
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<version>${org.springframework.version}</version>
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</dependency>
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<dependency>
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<groupId>org.springframework</groupId>
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<artifactId>spring-messaging</artifactId>
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<version>${org.springframework.version}</version>
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</dependency>
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<!-- Jackson -->
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<dependency>
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<groupId>com.fasterxml.jackson.core</groupId>
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<artifactId>jackson-core</artifactId>
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<version>2.7.3</version>
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</dependency>
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<dependency>
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<groupId>com.fasterxml.jackson.core</groupId>
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<artifactId>jackson-databind</artifactId>
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<version>2.7.3</version>
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</dependency>
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<!-- web -->
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<dependency>
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<groupId>javax.servlet</groupId>
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@ -0,0 +1,15 @@
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package com.baeldung.model;
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public class Message {
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private String from;
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private String text;
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public String getText() {
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return text;
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}
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public String getFrom() {
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return from;
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}
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}
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@ -0,0 +1,27 @@
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package com.baeldung.model;
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public class OutputMessage {
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private String from;
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private String text;
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private String time;
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public OutputMessage(final String from, final String text, final String time) {
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this.from = from;
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this.text = text;
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this.time = time;
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}
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public String getText() {
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return text;
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}
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public String getTime() {
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return time;
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}
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public String getFrom() {
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return from;
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}
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}
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@ -14,7 +14,7 @@ import org.springframework.web.servlet.DispatcherServlet;
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public class MainWebAppInitializer implements WebApplicationInitializer {
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private static final String TMP_FOLDER = "C:/Users/ivan/Desktop/tmp";
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private static final String TMP_FOLDER = "/tmp";
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private static final int MAX_UPLOAD_SIZE = 5 * 1024 * 1024; // 5 MB
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/**
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@ -0,0 +1,24 @@
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package com.baeldung.spring.web.config;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.messaging.simp.config.MessageBrokerRegistry;
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import org.springframework.web.socket.config.annotation.AbstractWebSocketMessageBrokerConfigurer;
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import org.springframework.web.socket.config.annotation.EnableWebSocketMessageBroker;
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import org.springframework.web.socket.config.annotation.StompEndpointRegistry;
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@Configuration
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@EnableWebSocketMessageBroker
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public class WebSocketConfig extends AbstractWebSocketMessageBrokerConfigurer {
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@Override
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public void configureMessageBroker(final MessageBrokerRegistry config) {
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config.enableSimpleBroker("/topic");
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config.setApplicationDestinationPrefixes("/app");
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}
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@Override
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public void registerStompEndpoints(final StompEndpointRegistry registry) {
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registry.addEndpoint("/chat").withSockJS();
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}
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}
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@ -0,0 +1,23 @@
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package com.baeldung.web.controller;
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import com.baeldung.model.Message;
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import com.baeldung.model.OutputMessage;
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import org.springframework.messaging.handler.annotation.MessageMapping;
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import org.springframework.messaging.handler.annotation.SendTo;
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import org.springframework.stereotype.Controller;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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@Controller
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public class ChatController {
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@MessageMapping("/chat")
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@SendTo("/topic/messages")
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public OutputMessage send(final Message message) throws Exception {
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final String time = new SimpleDateFormat("HH:mm").format(new Date());
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return new OutputMessage(message.getFrom(), message.getText(), time);
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}
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}
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@ -0,0 +1,88 @@
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<html>
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<head>
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<title>Chat WebSocket</title>
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<script src="./js/sockjs-0.3.4.js"></script>
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<script src="./js/stomp.js"></script>
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<script type="text/javascript">
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var stompClient = null;
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function setConnected(connected) {
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document.getElementById('connect').disabled = connected;
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document.getElementById('disconnect').disabled = !connected;
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document.getElementById('conversationDiv').style.visibility = connected ? 'visible' : 'hidden';
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document.getElementById('response').innerHTML = '';
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}
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function connect() {
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var socket = new SockJS('/spring-mvc-java/chat');
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stompClient = Stomp.over(socket);
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stompClient.connect({}, function(frame) {
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setConnected(true);
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console.log('Connected: ' + frame);
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stompClient.subscribe('/topic/messages', function(messageOutput) {
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showMessageOutput(JSON.parse(messageOutput.body));
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});
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});
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}
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function disconnect() {
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if(stompClient != null) {
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stompClient.disconnect();
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}
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setConnected(false);
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console.log("Disconnected");
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}
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function sendMessage() {
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var from = document.getElementById('from').value;
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var text = document.getElementById('text').value;
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stompClient.send("/app/chat", {}, JSON.stringify({'from':from, 'text':text}));
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}
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function showMessageOutput(messageOutput) {
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var response = document.getElementById('response');
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var p = document.createElement('p');
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p.style.wordWrap = 'break-word';
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p.appendChild(document.createTextNode(messageOutput.from + ": " + messageOutput.text + " (" + messageOutput.time + ")"));
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response.appendChild(p);
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}
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</script>
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</head>
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<body onload="disconnect()">
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<div>
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<div>
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<input type="text" id="from" placeholder="Choose a nickname"/>
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</div>
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<br />
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<div>
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<button id="connect" onclick="connect();">Connect</button>
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<button id="disconnect" disabled="disabled" onclick="disconnect();">Disconnect</button>
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</div>
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<br />
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<div id="conversationDiv">
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<input type="text" id="text" placeholder="Write a message..."/>
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<button id="sendMessage" onclick="sendMessage();">Send</button>
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<p id="response"></p>
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</div>
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</div>
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</body>
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</html>
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File diff suppressed because it is too large
Load Diff
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@ -0,0 +1,475 @@
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// Generated by CoffeeScript 1.7.1
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/*
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Stomp Over WebSocket http://www.jmesnil.net/stomp-websocket/doc/ | Apache License V2.0
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Copyright (C) 2010-2013 [Jeff Mesnil](http://jmesnil.net/)
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Copyright (C) 2012 [FuseSource, Inc.](http://fusesource.com)
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*/
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(function() {
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var Byte, Client, Frame, Stomp,
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__hasProp = {}.hasOwnProperty,
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__slice = [].slice;
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Byte = {
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LF: '\x0A',
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NULL: '\x00'
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};
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Frame = (function() {
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var unmarshallSingle;
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function Frame(command, headers, body) {
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this.command = command;
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this.headers = headers != null ? headers : {};
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this.body = body != null ? body : '';
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}
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Frame.prototype.toString = function() {
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var lines, name, value, _ref;
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lines = [this.command];
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_ref = this.headers;
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for (name in _ref) {
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if (!__hasProp.call(_ref, name)) continue;
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value = _ref[name];
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lines.push("" + name + ":" + value);
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}
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if (this.body) {
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lines.push("content-length:" + (Frame.sizeOfUTF8(this.body)));
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}
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lines.push(Byte.LF + this.body);
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return lines.join(Byte.LF);
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};
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Frame.sizeOfUTF8 = function(s) {
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if (s) {
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return encodeURI(s).split(/%..|./).length - 1;
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} else {
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return 0;
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}
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};
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unmarshallSingle = function(data) {
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var body, chr, command, divider, headerLines, headers, i, idx, len, line, start, trim, _i, _j, _len, _ref, _ref1;
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divider = data.search(RegExp("" + Byte.LF + Byte.LF));
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headerLines = data.substring(0, divider).split(Byte.LF);
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command = headerLines.shift();
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headers = {};
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trim = function(str) {
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return str.replace(/^\s+|\s+$/g, '');
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};
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_ref = headerLines.reverse();
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for (_i = 0, _len = _ref.length; _i < _len; _i++) {
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line = _ref[_i];
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idx = line.indexOf(':');
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headers[trim(line.substring(0, idx))] = trim(line.substring(idx + 1));
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}
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body = '';
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start = divider + 2;
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if (headers['content-length']) {
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len = parseInt(headers['content-length']);
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body = ('' + data).substring(start, start + len);
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} else {
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chr = null;
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for (i = _j = start, _ref1 = data.length; start <= _ref1 ? _j < _ref1 : _j > _ref1; i = start <= _ref1 ? ++_j : --_j) {
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chr = data.charAt(i);
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if (chr === Byte.NULL) {
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break;
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}
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body += chr;
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}
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}
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return new Frame(command, headers, body);
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};
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Frame.unmarshall = function(datas) {
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var data;
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return (function() {
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var _i, _len, _ref, _results;
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_ref = datas.split(RegExp("" + Byte.NULL + Byte.LF + "*"));
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_results = [];
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for (_i = 0, _len = _ref.length; _i < _len; _i++) {
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data = _ref[_i];
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if ((data != null ? data.length : void 0) > 0) {
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_results.push(unmarshallSingle(data));
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}
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}
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return _results;
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})();
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};
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Frame.marshall = function(command, headers, body) {
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var frame;
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frame = new Frame(command, headers, body);
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return frame.toString() + Byte.NULL;
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};
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return Frame;
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})();
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Client = (function() {
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var now;
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function Client(ws) {
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this.ws = ws;
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this.ws.binaryType = "arraybuffer";
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this.counter = 0;
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this.connected = false;
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this.heartbeat = {
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outgoing: 10000,
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incoming: 10000
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};
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this.maxWebSocketFrameSize = 16 * 1024;
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this.subscriptions = {};
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}
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Client.prototype.debug = function(message) {
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var _ref;
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return typeof window !== "undefined" && window !== null ? (_ref = window.console) != null ? _ref.log(message) : void 0 : void 0;
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};
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now = function() {
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return Date.now || new Date().valueOf;
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};
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Client.prototype._transmit = function(command, headers, body) {
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var out;
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out = Frame.marshall(command, headers, body);
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if (typeof this.debug === "function") {
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this.debug(">>> " + out);
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}
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while (true) {
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if (out.length > this.maxWebSocketFrameSize) {
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this.ws.send(out.substring(0, this.maxWebSocketFrameSize));
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out = out.substring(this.maxWebSocketFrameSize);
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if (typeof this.debug === "function") {
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this.debug("remaining = " + out.length);
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}
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} else {
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return this.ws.send(out);
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}
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}
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};
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Client.prototype._setupHeartbeat = function(headers) {
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var serverIncoming, serverOutgoing, ttl, v, _ref, _ref1;
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if ((_ref = headers.version) !== Stomp.VERSIONS.V1_1 && _ref !== Stomp.VERSIONS.V1_2) {
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return;
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}
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_ref1 = (function() {
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var _i, _len, _ref1, _results;
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_ref1 = headers['heart-beat'].split(",");
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_results = [];
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for (_i = 0, _len = _ref1.length; _i < _len; _i++) {
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v = _ref1[_i];
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_results.push(parseInt(v));
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}
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return _results;
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})(), serverOutgoing = _ref1[0], serverIncoming = _ref1[1];
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if (!(this.heartbeat.outgoing === 0 || serverIncoming === 0)) {
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ttl = Math.max(this.heartbeat.outgoing, serverIncoming);
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if (typeof this.debug === "function") {
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this.debug("send PING every " + ttl + "ms");
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}
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this.pinger = Stomp.setInterval(ttl, (function(_this) {
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return function() {
|
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_this.ws.send(Byte.LF);
|
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return typeof _this.debug === "function" ? _this.debug(">>> PING") : void 0;
|
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};
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})(this));
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}
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if (!(this.heartbeat.incoming === 0 || serverOutgoing === 0)) {
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ttl = Math.max(this.heartbeat.incoming, serverOutgoing);
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if (typeof this.debug === "function") {
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this.debug("check PONG every " + ttl + "ms");
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}
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return this.ponger = Stomp.setInterval(ttl, (function(_this) {
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return function() {
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var delta;
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delta = now() - _this.serverActivity;
|
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if (delta > ttl * 2) {
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if (typeof _this.debug === "function") {
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_this.debug("did not receive server activity for the last " + delta + "ms");
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}
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return _this.ws.close();
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}
|
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};
|
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})(this));
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}
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};
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Client.prototype._parseConnect = function() {
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var args, connectCallback, errorCallback, headers;
|
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args = 1 <= arguments.length ? __slice.call(arguments, 0) : [];
|
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headers = {};
|
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switch (args.length) {
|
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case 2:
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headers = args[0], connectCallback = args[1];
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break;
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case 3:
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if (args[1] instanceof Function) {
|
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headers = args[0], connectCallback = args[1], errorCallback = args[2];
|
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} else {
|
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headers.login = args[0], headers.passcode = args[1], connectCallback = args[2];
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}
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break;
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case 4:
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headers.login = args[0], headers.passcode = args[1], connectCallback = args[2], errorCallback = args[3];
|
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break;
|
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default:
|
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headers.login = args[0], headers.passcode = args[1], connectCallback = args[2], errorCallback = args[3], headers.host = args[4];
|
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}
|
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return [headers, connectCallback, errorCallback];
|
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};
|
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|
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Client.prototype.connect = function() {
|
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var args, errorCallback, headers, out;
|
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args = 1 <= arguments.length ? __slice.call(arguments, 0) : [];
|
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out = this._parseConnect.apply(this, args);
|
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headers = out[0], this.connectCallback = out[1], errorCallback = out[2];
|
||||
if (typeof this.debug === "function") {
|
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this.debug("Opening Web Socket...");
|
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}
|
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this.ws.onmessage = (function(_this) {
|
||||
return function(evt) {
|
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var arr, c, client, data, frame, messageID, onreceive, subscription, _i, _len, _ref, _results;
|
||||
data = typeof ArrayBuffer !== 'undefined' && evt.data instanceof ArrayBuffer ? (arr = new Uint8Array(evt.data), typeof _this.debug === "function" ? _this.debug("--- got data length: " + arr.length) : void 0, ((function() {
|
||||
var _i, _len, _results;
|
||||
_results = [];
|
||||
for (_i = 0, _len = arr.length; _i < _len; _i++) {
|
||||
c = arr[_i];
|
||||
_results.push(String.fromCharCode(c));
|
||||
}
|
||||
return _results;
|
||||
})()).join('')) : evt.data;
|
||||
_this.serverActivity = now();
|
||||
if (data === Byte.LF) {
|
||||
if (typeof _this.debug === "function") {
|
||||
_this.debug("<<< PONG");
|
||||
}
|
||||
return;
|
||||
}
|
||||
if (typeof _this.debug === "function") {
|
||||
_this.debug("<<< " + data);
|
||||
}
|
||||
_ref = Frame.unmarshall(data);
|
||||
_results = [];
|
||||
for (_i = 0, _len = _ref.length; _i < _len; _i++) {
|
||||
frame = _ref[_i];
|
||||
switch (frame.command) {
|
||||
case "CONNECTED":
|
||||
if (typeof _this.debug === "function") {
|
||||
_this.debug("connected to server " + frame.headers.server);
|
||||
}
|
||||
_this.connected = true;
|
||||
_this._setupHeartbeat(frame.headers);
|
||||
_results.push(typeof _this.connectCallback === "function" ? _this.connectCallback(frame) : void 0);
|
||||
break;
|
||||
case "MESSAGE":
|
||||
subscription = frame.headers.subscription;
|
||||
onreceive = _this.subscriptions[subscription] || _this.onreceive;
|
||||
if (onreceive) {
|
||||
client = _this;
|
||||
messageID = frame.headers["message-id"];
|
||||
frame.ack = function(headers) {
|
||||
if (headers == null) {
|
||||
headers = {};
|
||||
}
|
||||
return client.ack(messageID, subscription, headers);
|
||||
};
|
||||
frame.nack = function(headers) {
|
||||
if (headers == null) {
|
||||
headers = {};
|
||||
}
|
||||
return client.nack(messageID, subscription, headers);
|
||||
};
|
||||
_results.push(onreceive(frame));
|
||||
} else {
|
||||
_results.push(typeof _this.debug === "function" ? _this.debug("Unhandled received MESSAGE: " + frame) : void 0);
|
||||
}
|
||||
break;
|
||||
case "RECEIPT":
|
||||
_results.push(typeof _this.onreceipt === "function" ? _this.onreceipt(frame) : void 0);
|
||||
break;
|
||||
case "ERROR":
|
||||
_results.push(typeof errorCallback === "function" ? errorCallback(frame) : void 0);
|
||||
break;
|
||||
default:
|
||||
_results.push(typeof _this.debug === "function" ? _this.debug("Unhandled frame: " + frame) : void 0);
|
||||
}
|
||||
}
|
||||
return _results;
|
||||
};
|
||||
})(this);
|
||||
this.ws.onclose = (function(_this) {
|
||||
return function() {
|
||||
var msg;
|
||||
msg = "Whoops! Lost connection to " + _this.ws.url;
|
||||
if (typeof _this.debug === "function") {
|
||||
_this.debug(msg);
|
||||
}
|
||||
_this._cleanUp();
|
||||
return typeof errorCallback === "function" ? errorCallback(msg) : void 0;
|
||||
};
|
||||
})(this);
|
||||
return this.ws.onopen = (function(_this) {
|
||||
return function() {
|
||||
if (typeof _this.debug === "function") {
|
||||
_this.debug('Web Socket Opened...');
|
||||
}
|
||||
headers["accept-version"] = Stomp.VERSIONS.supportedVersions();
|
||||
headers["heart-beat"] = [_this.heartbeat.outgoing, _this.heartbeat.incoming].join(',');
|
||||
return _this._transmit("CONNECT", headers);
|
||||
};
|
||||
})(this);
|
||||
};
|
||||
|
||||
Client.prototype.disconnect = function(disconnectCallback) {
|
||||
this._transmit("DISCONNECT");
|
||||
this.ws.onclose = null;
|
||||
this.ws.close();
|
||||
this._cleanUp();
|
||||
return typeof disconnectCallback === "function" ? disconnectCallback() : void 0;
|
||||
};
|
||||
|
||||
Client.prototype._cleanUp = function() {
|
||||
this.connected = false;
|
||||
if (this.pinger) {
|
||||
Stomp.clearInterval(this.pinger);
|
||||
}
|
||||
if (this.ponger) {
|
||||
return Stomp.clearInterval(this.ponger);
|
||||
}
|
||||
};
|
||||
|
||||
Client.prototype.send = function(destination, headers, body) {
|
||||
if (headers == null) {
|
||||
headers = {};
|
||||
}
|
||||
if (body == null) {
|
||||
body = '';
|
||||
}
|
||||
headers.destination = destination;
|
||||
return this._transmit("SEND", headers, body);
|
||||
};
|
||||
|
||||
Client.prototype.subscribe = function(destination, callback, headers) {
|
||||
var client;
|
||||
if (headers == null) {
|
||||
headers = {};
|
||||
}
|
||||
if (!headers.id) {
|
||||
headers.id = "sub-" + this.counter++;
|
||||
}
|
||||
headers.destination = destination;
|
||||
this.subscriptions[headers.id] = callback;
|
||||
this._transmit("SUBSCRIBE", headers);
|
||||
client = this;
|
||||
return {
|
||||
id: headers.id,
|
||||
unsubscribe: function() {
|
||||
return client.unsubscribe(headers.id);
|
||||
}
|
||||
};
|
||||
};
|
||||
|
||||
Client.prototype.unsubscribe = function(id) {
|
||||
delete this.subscriptions[id];
|
||||
return this._transmit("UNSUBSCRIBE", {
|
||||
id: id
|
||||
});
|
||||
};
|
||||
|
||||
Client.prototype.begin = function(transaction) {
|
||||
var client, txid;
|
||||
txid = transaction || "tx-" + this.counter++;
|
||||
this._transmit("BEGIN", {
|
||||
transaction: txid
|
||||
});
|
||||
client = this;
|
||||
return {
|
||||
id: txid,
|
||||
commit: function() {
|
||||
return client.commit(txid);
|
||||
},
|
||||
abort: function() {
|
||||
return client.abort(txid);
|
||||
}
|
||||
};
|
||||
};
|
||||
|
||||
Client.prototype.commit = function(transaction) {
|
||||
return this._transmit("COMMIT", {
|
||||
transaction: transaction
|
||||
});
|
||||
};
|
||||
|
||||
Client.prototype.abort = function(transaction) {
|
||||
return this._transmit("ABORT", {
|
||||
transaction: transaction
|
||||
});
|
||||
};
|
||||
|
||||
Client.prototype.ack = function(messageID, subscription, headers) {
|
||||
if (headers == null) {
|
||||
headers = {};
|
||||
}
|
||||
headers["message-id"] = messageID;
|
||||
headers.subscription = subscription;
|
||||
return this._transmit("ACK", headers);
|
||||
};
|
||||
|
||||
Client.prototype.nack = function(messageID, subscription, headers) {
|
||||
if (headers == null) {
|
||||
headers = {};
|
||||
}
|
||||
headers["message-id"] = messageID;
|
||||
headers.subscription = subscription;
|
||||
return this._transmit("NACK", headers);
|
||||
};
|
||||
|
||||
return Client;
|
||||
|
||||
})();
|
||||
|
||||
Stomp = {
|
||||
VERSIONS: {
|
||||
V1_0: '1.0',
|
||||
V1_1: '1.1',
|
||||
V1_2: '1.2',
|
||||
supportedVersions: function() {
|
||||
return '1.1,1.0';
|
||||
}
|
||||
},
|
||||
client: function(url, protocols) {
|
||||
var klass, ws;
|
||||
if (protocols == null) {
|
||||
protocols = ['v10.stomp', 'v11.stomp'];
|
||||
}
|
||||
klass = Stomp.WebSocketClass || WebSocket;
|
||||
ws = new klass(url, protocols);
|
||||
return new Client(ws);
|
||||
},
|
||||
over: function(ws) {
|
||||
return new Client(ws);
|
||||
},
|
||||
Frame: Frame
|
||||
};
|
||||
|
||||
if (typeof window !== "undefined" && window !== null) {
|
||||
Stomp.setInterval = function(interval, f) {
|
||||
return window.setInterval(f, interval);
|
||||
};
|
||||
Stomp.clearInterval = function(id) {
|
||||
return window.clearInterval(id);
|
||||
};
|
||||
window.Stomp = Stomp;
|
||||
} else if (typeof exports !== "undefined" && exports !== null) {
|
||||
exports.Stomp = Stomp;
|
||||
} else {
|
||||
self.Stomp = Stomp;
|
||||
}
|
||||
|
||||
}).call(this);
|
||||
Loading…
Reference in New Issue