001/** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 018package org.apache.activemq.transport.ws.jetty9; 019 020import java.io.IOException; 021 022import javax.servlet.ServletException; 023import javax.servlet.http.HttpServletRequest; 024import javax.servlet.http.HttpServletResponse; 025 026import org.apache.activemq.transport.TransportAcceptListener; 027import org.eclipse.jetty.websocket.api.WebSocketListener; 028import org.eclipse.jetty.websocket.servlet.ServletUpgradeRequest; 029import org.eclipse.jetty.websocket.servlet.ServletUpgradeResponse; 030import org.eclipse.jetty.websocket.servlet.WebSocketServlet; 031import org.eclipse.jetty.websocket.servlet.WebSocketCreator; 032import org.eclipse.jetty.websocket.servlet.WebSocketServletFactory; 033 034/** 035 * Handle connection upgrade requests and creates web sockets 036 */ 037public class WSServlet extends WebSocketServlet { 038 private static final long serialVersionUID = -4716657876092884139L; 039 040 private TransportAcceptListener listener; 041 042 public void init() throws ServletException { 043 super.init(); 044 listener = (TransportAcceptListener)getServletContext().getAttribute("acceptListener"); 045 if (listener == null) { 046 throw new ServletException("No such attribute 'acceptListener' available in the ServletContext"); 047 } 048 } 049 050 protected void doGet(HttpServletRequest request, HttpServletResponse response) 051 throws ServletException ,IOException { 052 getServletContext().getNamedDispatcher("default").forward(request,response); 053 } 054 055 056 public void configure(WebSocketServletFactory factory) { 057 factory.setCreator(new WebSocketCreator() { 058 @Override 059 public Object createWebSocket(ServletUpgradeRequest req, ServletUpgradeResponse resp) { 060 WebSocketListener socket; 061 if (req.getSubProtocols().contains("mqtt")) { 062 socket = new MQTTSocket(); 063 } else { 064 socket = new StompSocket(); 065 } 066 return socket; 067 } 068 }); 069 070 } 071} 072