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annotate src/org/eclipse/jetty/server/handler/IdleTimeoutHandler.java @ 840:0f53601ea489

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author Franklin Schmidt <fschmidt@gmail.com>
date Mon, 19 Sep 2016 14:20:18 -0600
parents 3428c60d7cfc
children 3268ddf919d4
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1 //
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2 // ========================================================================
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3 // Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
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4 // ------------------------------------------------------------------------
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5 // All rights reserved. This program and the accompanying materials
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6 // are made available under the terms of the Eclipse Public License v1.0
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7 // and Apache License v2.0 which accompanies this distribution.
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8 //
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9 // The Eclipse Public License is available at
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10 // http://www.eclipse.org/legal/epl-v10.html
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11 //
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12 // The Apache License v2.0 is available at
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13 // http://www.opensource.org/licenses/apache2.0.php
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14 //
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15 // You may elect to redistribute this code under either of these licenses.
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16 // ========================================================================
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17 //
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18
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19 package org.eclipse.jetty.server.handler;
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20
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21 import java.io.IOException;
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22
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23 import javax.servlet.AsyncEvent;
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24 import javax.servlet.AsyncListener;
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25 import javax.servlet.ServletException;
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26 import javax.servlet.http.HttpServletRequest;
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27 import javax.servlet.http.HttpServletResponse;
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28
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29 import org.eclipse.jetty.io.EndPoint;
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30 import org.eclipse.jetty.server.AbstractHttpConnection;
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31 import org.eclipse.jetty.server.Request;
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32
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33 /**
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34 * Handler to adjust the idle timeout of requests while dispatched.
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35 *
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36 * <p>Can be applied in jetty.xml with
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37 * <pre>
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38 * &lt;Get id='handler' name='Handler'/>
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39 * &lt;Set name='Handler'>
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40 * &lt;New id='idleTimeoutHandler' class='org.eclipse.jetty.server.handler.IdleTimeoutHandler'>
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41 * &lt;Set name='Handler'>&lt;Ref id='handler'/>&lt;/Set>
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42 * &lt;Set name='IdleTimeoutMs'>5000&lt;/Set>
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43 * &lt;/New>
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44 * &lt;/Set>
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45 * </pre>
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46 */
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47 public class IdleTimeoutHandler extends HandlerWrapper
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48 {
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49 private int _idleTimeoutMs = 1000;
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50 private boolean _applyToAsync = false;
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51
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52
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53 public boolean isApplyToAsync()
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54 {
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55 return _applyToAsync;
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56 }
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57
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58 /**
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59 * Should the adjusted idle time be maintained for asynchronous requests
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60 * @param applyToAsync true if alternate idle timeout is applied to asynchronous requests
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61 */
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62 public void setApplyToAsync(boolean applyToAsync)
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63 {
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64 _applyToAsync = applyToAsync;
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65 }
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66
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67 public long getIdleTimeoutMs()
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68 {
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69 return _idleTimeoutMs;
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70 }
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71
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72 /**
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73 * @param idleTimeoutMs The idle timeout in MS to apply while dispatched or async
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74 */
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75 public void setIdleTimeoutMs(int _idleTimeoutMs)
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76 {
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77 this._idleTimeoutMs = _idleTimeoutMs;
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78 }
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79
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80
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81 @Override
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82 public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
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83 {
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84 AbstractHttpConnection connection = AbstractHttpConnection.getCurrentConnection();
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85 final EndPoint endp = connection==null?null:connection.getEndPoint();
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86
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87 final int idle_timeout;
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88 if (endp==null)
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89 idle_timeout=-1;
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90 else
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91 {
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92 idle_timeout=endp.getMaxIdleTime();
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93 endp.setMaxIdleTime(_idleTimeoutMs);
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94 }
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95
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96 try
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97 {
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98 super.handle(target,baseRequest,request,response);
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99 }
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100 finally
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101 {
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102 if (endp!=null)
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103 {
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104 if (_applyToAsync && request.isAsyncStarted())
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105 {
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106 request.getAsyncContext().addListener(new AsyncListener()
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107 {
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108 @Override
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109 public void onTimeout(AsyncEvent event) throws IOException
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110 {
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111 }
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112
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113 @Override
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114 public void onStartAsync(AsyncEvent event) throws IOException
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115 {
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116 }
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117
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118 @Override
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119 public void onError(AsyncEvent event) throws IOException
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120 {
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121 endp.setMaxIdleTime(idle_timeout);
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122 }
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123
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124 @Override
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125 public void onComplete(AsyncEvent event) throws IOException
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126 {
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127 endp.setMaxIdleTime(idle_timeout);
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128 }
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129 });
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130 }
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131 else
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132 {
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133 endp.setMaxIdleTime(idle_timeout);
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134 }
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135 }
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136 }
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137 }
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138 }