View Javadoc

1   /*
2    * Copyright 2010 Red Hat, Inc.
3    *
4    * Red Hat licenses this file to you under the Apache License, version 2.0
5    * (the "License"); you may not use this file except in compliance with the
6    * License.  You may obtain a copy of the License at:
7    *
8    *    http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
13   * License for the specific language governing permissions and limitations
14   * under the License.
15   */
16  package org.jboss.netty.example.http.websocket;
17  
18  import org.jboss.netty.buffer.ChannelBuffer;
19  import org.jboss.netty.buffer.ChannelBuffers;
20  import org.jboss.netty.util.CharsetUtil;
21  
22  
23  /**
24   * Generates the demo HTML page which is served at http://localhost:8080/
25   *
26   * @author <a href="http://www.jboss.org/netty/">The Netty Project</a>
27   * @author <a href="http://gleamynode.net/">Trustin Lee</a>
28   *
29   * @version $Rev: 2080 $, $Date: 2010-01-26 18:04:19 +0900 (Tue, 26 Jan 2010) $
30   */
31  public class WebSocketServerIndexPage {
32  
33      private static final String NEWLINE = "\r\n";
34  
35      public static ChannelBuffer getContent(String webSocketLocation) {
36          return ChannelBuffers.copiedBuffer(
37          "<html><head><title>Web Socket Test</title></head>" + NEWLINE +
38          "<body>" + NEWLINE +
39          "<script type=\"text/javascript\">" + NEWLINE +
40          "var socket;" + NEWLINE +
41          "if (window.WebSocket) {" + NEWLINE +
42          "  socket = new WebSocket(\"" + webSocketLocation + "\");" + NEWLINE +
43          "  socket.onmessage = function(event) { alert(event.data); };" + NEWLINE +
44          "  socket.onopen = function(event) { alert(\"Web Socket opened!\"); };" + NEWLINE +
45          "  socket.onclose = function(event) { alert(\"Web Socket closed.\"); };" + NEWLINE +
46          "} else {" + NEWLINE +
47          "  alert(\"Your browser does not support Web Socket.\");" + NEWLINE +
48          "}" + NEWLINE +
49          "" + NEWLINE +
50          "function send(message) {" + NEWLINE +
51          "  if (!window.WebSocket) { return; }" + NEWLINE +
52          "  if (socket.readyState == WebSocket.OPEN) {" + NEWLINE +
53          "    socket.send(message);" + NEWLINE +
54          "  } else {" + NEWLINE +
55          "    alert(\"The socket is not open.\");" + NEWLINE +
56          "  }" + NEWLINE +
57          "}" + NEWLINE +
58          "</script>" + NEWLINE +
59          "<form onsubmit=\"return false;\">" + NEWLINE +
60          "<input type=\"text\" name=\"message\" value=\"Hello, World!\"/>" +
61          "<input type=\"button\" value=\"Send Web Socket Data\" onclick=\"send(this.form.message.value)\" />" + NEWLINE +
62          "</form>" + NEWLINE +
63          "</body>" + NEWLINE +
64          "</html>" + NEWLINE,
65          CharsetUtil.US_ASCII);
66      }
67  }