1 //
2 // ========================================================================
3 // Copyright (c) 1995-2015 Mort Bay Consulting Pty. Ltd.
4 // ------------------------------------------------------------------------
5 // All rights reserved. This program and the accompanying materials
6 // are made available under the terms of the Eclipse Public License v1.0
7 // and Apache License v2.0 which accompanies this distribution.
8 //
9 // The Eclipse Public License is available at
10 // http://www.eclipse.org/legal/epl-v10.html
11 //
12 // The Apache License v2.0 is available at
13 // http://www.opensource.org/licenses/apache2.0.php
14 //
15 // You may elect to redistribute this code under either of these licenses.
16 // ========================================================================
17 //
18
19 package org.eclipse.jetty.server.handler;
20
21 import java.io.IOException;
22
23 import javax.servlet.AsyncEvent;
24 import javax.servlet.AsyncListener;
25 import javax.servlet.ServletException;
26 import javax.servlet.http.HttpServletRequest;
27 import javax.servlet.http.HttpServletResponse;
28
29 import org.eclipse.jetty.io.EndPoint;
30 import org.eclipse.jetty.server.HttpChannel;
31 import org.eclipse.jetty.server.HttpConnection;
32 import org.eclipse.jetty.server.Request;
33
34 /**
35 * Handler to adjust the idle timeout of requests while dispatched.
36 * Can be applied in jetty.xml with
37 * <pre>
38 * <Get id='handler' name='Handler'/>
39 * <Set name='Handler'>
40 * <New id='idleTimeoutHandler' class='org.eclipse.jetty.server.handler.IdleTimeoutHandler'>
41 * <Set name='Handler'><Ref id='handler'/></Set>
42 * <Set name='IdleTimeoutMs'>5000</Set>
43 * </New>
44 * </Set>
45 * </pre>
46 */
47 public class IdleTimeoutHandler extends HandlerWrapper
48 {
49 private long _idleTimeoutMs = 1000;
50 private boolean _applyToAsync = false;
51
52 public boolean isApplyToAsync()
53 {
54 return _applyToAsync;
55 }
56
57 /**
58 * Should the adjusted idle time be maintained for asynchronous requests
59 * @param applyToAsync true if alternate idle timeout is applied to asynchronous requests
60 */
61 public void setApplyToAsync(boolean applyToAsync)
62 {
63 _applyToAsync = applyToAsync;
64 }
65
66 public long getIdleTimeoutMs()
67 {
68 return _idleTimeoutMs;
69 }
70
71 /**
72 * @param idleTimeoutMs The idle timeout in MS to apply while dispatched or async
73 */
74 public void setIdleTimeoutMs(long idleTimeoutMs)
75 {
76 this._idleTimeoutMs = idleTimeoutMs;
77 }
78
79
80 @Override
81 public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
82 {
83 final HttpChannel<?> channel = baseRequest.getHttpChannel();
84 final long idle_timeout=baseRequest.getHttpChannel().getIdleTimeout();
85 channel.setIdleTimeout(_idleTimeoutMs);
86
87 try
88 {
89 super.handle(target,baseRequest,request,response);
90 }
91 finally
92 {
93 if (_applyToAsync && request.isAsyncStarted())
94 {
95 request.getAsyncContext().addListener(new AsyncListener()
96 {
97 @Override
98 public void onTimeout(AsyncEvent event) throws IOException
99 {
100 }
101
102 @Override
103 public void onStartAsync(AsyncEvent event) throws IOException
104 {
105 }
106
107 @Override
108 public void onError(AsyncEvent event) throws IOException
109 {
110 channel.setIdleTimeout(idle_timeout);
111 }
112
113 @Override
114 public void onComplete(AsyncEvent event) throws IOException
115 {
116 channel.setIdleTimeout(idle_timeout);
117 }
118 });
119 }
120 else
121 channel.setIdleTimeout(idle_timeout);
122 }
123 }
124 }