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annotate src/org/eclipse/jetty/server/session/HashSessionManager.java @ 802:3428c60d7cfc
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author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Wed, 07 Sep 2016 21:15:48 -0600 |
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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.session; |
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20 |
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21 import java.io.DataInputStream; |
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22 import java.io.File; |
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23 import java.io.FileInputStream; |
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24 import java.io.IOException; |
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25 import java.io.InputStream; |
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26 import java.io.ObjectInputStream; |
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27 import java.net.URI; |
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28 import java.util.ArrayList; |
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29 import java.util.Iterator; |
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30 import java.util.Map; |
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31 import java.util.Set; |
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32 import java.util.Timer; |
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33 import java.util.TimerTask; |
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34 import java.util.concurrent.ConcurrentHashMap; |
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35 import java.util.concurrent.ConcurrentMap; |
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36 |
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37 import javax.servlet.ServletContext; |
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38 import javax.servlet.http.HttpServletRequest; |
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39 |
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40 import org.eclipse.jetty.server.handler.ContextHandler; |
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41 import org.eclipse.jetty.util.IO; |
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42 import org.eclipse.jetty.util.log.Logger; |
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43 |
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44 |
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45 /* ------------------------------------------------------------ */ |
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46 /** |
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47 * HashSessionManager |
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48 * |
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49 * An in-memory implementation of SessionManager. |
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50 * <p> |
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51 * This manager supports saving sessions to disk, either periodically or at shutdown. |
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52 * Sessions can also have their content idle saved to disk to reduce the memory overheads of large idle sessions. |
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53 * <p> |
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54 * This manager will create it's own Timer instance to scavenge threads, unless it discovers a shared Timer instance |
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55 * set as the "org.eclipse.jetty.server.session.timer" attribute of the ContextHandler. |
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56 * |
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57 */ |
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58 public class HashSessionManager extends AbstractSessionManager |
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59 { |
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60 final static Logger __log = SessionHandler.LOG; |
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61 |
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62 protected final ConcurrentMap<String,HashedSession> _sessions=new ConcurrentHashMap<String,HashedSession>(); |
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63 private static int __id; |
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64 private Timer _timer; |
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65 private boolean _timerStop=false; |
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66 private TimerTask _task; |
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67 long _scavengePeriodMs=30000; |
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68 long _savePeriodMs=0; //don't do period saves by default |
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69 long _idleSavePeriodMs = 0; // don't idle save sessions by default. |
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70 private TimerTask _saveTask; |
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71 File _storeDir; |
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72 private boolean _lazyLoad=false; |
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73 private volatile boolean _sessionsLoaded=false; |
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74 private boolean _deleteUnrestorableSessions=false; |
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75 |
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76 |
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77 |
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78 |
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79 /* ------------------------------------------------------------ */ |
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80 public HashSessionManager() |
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81 { |
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82 super(); |
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83 } |
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84 |
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85 /* ------------------------------------------------------------ */ |
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86 /** |
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87 * @see org.eclipse.jetty.servlet.AbstractSessionManager#doStart() |
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88 */ |
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89 @Override |
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90 public void doStart() throws Exception |
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91 { |
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92 super.doStart(); |
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93 |
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94 _timerStop=false; |
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95 ServletContext context = ContextHandler.getCurrentContext(); |
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96 if (context!=null) |
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97 _timer=(Timer)context.getAttribute("org.eclipse.jetty.server.session.timer"); |
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98 if (_timer==null) |
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99 { |
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100 _timerStop=true; |
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101 _timer=new Timer("HashSessionScavenger-"+__id++, true); |
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102 } |
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103 |
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104 setScavengePeriod(getScavengePeriod()); |
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105 |
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106 if (_storeDir!=null) |
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107 { |
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108 if (!_storeDir.exists()) |
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109 _storeDir.mkdirs(); |
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110 |
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111 if (!_lazyLoad) |
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112 restoreSessions(); |
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113 } |
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114 |
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115 setSavePeriod(getSavePeriod()); |
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116 } |
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117 |
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118 /* ------------------------------------------------------------ */ |
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119 /** |
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120 * @see org.eclipse.jetty.servlet.AbstractSessionManager#doStop() |
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121 */ |
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122 @Override |
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123 public void doStop() throws Exception |
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124 { |
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125 // stop the scavengers |
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126 synchronized(this) |
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127 { |
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128 if (_saveTask!=null) |
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129 _saveTask.cancel(); |
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130 _saveTask=null; |
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131 if (_task!=null) |
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132 _task.cancel(); |
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133 _task=null; |
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134 if (_timer!=null && _timerStop) |
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135 _timer.cancel(); |
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136 _timer=null; |
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137 } |
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138 |
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139 // This will callback invalidate sessions - where we decide if we will save |
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140 super.doStop(); |
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141 |
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142 _sessions.clear(); |
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143 |
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144 } |
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145 |
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146 /* ------------------------------------------------------------ */ |
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147 /** |
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148 * @return the period in seconds at which a check is made for sessions to be invalidated. |
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149 */ |
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150 public int getScavengePeriod() |
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151 { |
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152 return (int)(_scavengePeriodMs/1000); |
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153 } |
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154 |
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155 |
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156 /* ------------------------------------------------------------ */ |
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157 @Override |
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158 public int getSessions() |
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159 { |
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160 int sessions=super.getSessions(); |
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161 if (__log.isDebugEnabled()) |
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162 { |
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163 if (_sessions.size()!=sessions) |
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164 __log.warn("sessions: "+_sessions.size()+"!="+sessions); |
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165 } |
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166 return sessions; |
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167 } |
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168 |
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169 /* ------------------------------------------------------------ */ |
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170 /** |
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171 * @return seconds Idle period after which a session is saved |
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172 */ |
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173 public int getIdleSavePeriod() |
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174 { |
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175 if (_idleSavePeriodMs <= 0) |
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176 return 0; |
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177 |
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178 return (int)(_idleSavePeriodMs / 1000); |
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179 } |
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180 |
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181 /* ------------------------------------------------------------ */ |
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182 /** |
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183 * Configures the period in seconds after which a session is deemed idle and saved |
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184 * to save on session memory. |
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185 * |
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186 * The session is persisted, the values attribute map is cleared and the session set to idled. |
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187 * |
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188 * @param seconds Idle period after which a session is saved |
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189 */ |
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190 public void setIdleSavePeriod(int seconds) |
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191 { |
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192 _idleSavePeriodMs = seconds * 1000L; |
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193 } |
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194 |
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195 /* ------------------------------------------------------------ */ |
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196 @Override |
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197 public void setMaxInactiveInterval(int seconds) |
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198 { |
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199 super.setMaxInactiveInterval(seconds); |
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200 if (_dftMaxIdleSecs>0&&_scavengePeriodMs>_dftMaxIdleSecs*1000L) |
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201 setScavengePeriod((_dftMaxIdleSecs+9)/10); |
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202 } |
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203 |
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204 /* ------------------------------------------------------------ */ |
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205 /** |
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206 * @param seconds the period is seconds at which sessions are periodically saved to disk |
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207 */ |
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208 public void setSavePeriod (int seconds) |
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209 { |
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210 long period = (seconds * 1000L); |
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211 if (period < 0) |
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212 period=0; |
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213 _savePeriodMs=period; |
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214 |
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215 if (_timer!=null) |
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216 { |
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217 synchronized (this) |
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218 { |
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219 if (_saveTask!=null) |
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220 _saveTask.cancel(); |
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221 if (_savePeriodMs > 0 && _storeDir!=null) //only save if we have a directory configured |
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222 { |
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223 _saveTask = new TimerTask() |
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224 { |
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225 @Override |
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226 public void run() |
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227 { |
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228 try |
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229 { |
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230 saveSessions(true); |
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231 } |
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232 catch (Exception e) |
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233 { |
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234 __log.warn(e); |
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235 } |
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236 } |
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237 }; |
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238 _timer.schedule(_saveTask,_savePeriodMs,_savePeriodMs); |
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239 } |
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240 } |
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241 } |
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242 } |
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243 |
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244 /* ------------------------------------------------------------ */ |
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245 /** |
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246 * @return the period in seconds at which sessions are periodically saved to disk |
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247 */ |
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248 public int getSavePeriod () |
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249 { |
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250 if (_savePeriodMs<=0) |
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251 return 0; |
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252 |
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253 return (int)(_savePeriodMs/1000); |
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254 } |
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255 |
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256 /* ------------------------------------------------------------ */ |
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257 /** |
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258 * @param seconds the period in seconds at which a check is made for sessions to be invalidated. |
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259 */ |
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260 public void setScavengePeriod(int seconds) |
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261 { |
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262 if (seconds==0) |
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263 seconds=60; |
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264 |
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265 long old_period=_scavengePeriodMs; |
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266 long period=seconds*1000L; |
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267 if (period>60000) |
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268 period=60000; |
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269 if (period<1000) |
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270 period=1000; |
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271 |
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272 _scavengePeriodMs=period; |
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273 |
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274 if (_timer!=null && (period!=old_period || _task==null)) |
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275 { |
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276 synchronized (this) |
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277 { |
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278 if (_task!=null) |
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279 _task.cancel(); |
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280 _task = new TimerTask() |
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281 { |
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282 @Override |
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283 public void run() |
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284 { |
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285 scavenge(); |
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286 } |
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287 }; |
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288 _timer.schedule(_task,_scavengePeriodMs,_scavengePeriodMs); |
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289 } |
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290 } |
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291 } |
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292 |
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293 /* -------------------------------------------------------------- */ |
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294 /** |
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295 * Find sessions that have timed out and invalidate them. This runs in the |
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296 * SessionScavenger thread. |
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297 */ |
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298 protected void scavenge() |
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299 { |
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300 //don't attempt to scavenge if we are shutting down |
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301 if (isStopping() || isStopped()) |
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302 return; |
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303 |
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304 Thread thread=Thread.currentThread(); |
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305 ClassLoader old_loader=thread.getContextClassLoader(); |
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306 try |
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307 { |
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308 if (_loader!=null) |
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309 thread.setContextClassLoader(_loader); |
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310 |
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311 // For each session |
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312 long now=System.currentTimeMillis(); |
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313 |
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314 for (Iterator<HashedSession> i=_sessions.values().iterator(); i.hasNext();) |
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315 { |
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316 HashedSession session=i.next(); |
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317 long idleTime=session.getMaxInactiveInterval()*1000L; |
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318 if (idleTime>0&&session.getAccessed()+idleTime<now) |
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319 { |
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320 // Found a stale session, add it to the list |
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321 try |
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322 { |
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323 session.timeout(); |
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324 } |
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325 catch (Exception e) |
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326 { |
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327 __log.warn("Problem scavenging sessions", e); |
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328 } |
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329 } |
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330 else if (_idleSavePeriodMs > 0 && session.getAccessed()+_idleSavePeriodMs < now) |
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331 { |
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332 try |
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333 { |
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334 session.idle(); |
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335 } |
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336 catch (Exception e) |
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337 { |
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338 __log.warn("Problem idling session "+ session.getId(), e); |
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339 } |
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340 } |
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341 } |
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342 } |
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343 finally |
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344 { |
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345 thread.setContextClassLoader(old_loader); |
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346 } |
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347 } |
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348 |
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349 /* ------------------------------------------------------------ */ |
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350 @Override |
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351 protected void addSession(AbstractSession session) |
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352 { |
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353 if (isRunning()) |
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354 _sessions.put(session.getClusterId(),(HashedSession)session); |
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355 } |
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356 |
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357 /* ------------------------------------------------------------ */ |
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358 @Override |
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359 public AbstractSession getSession(String idInCluster) |
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360 { |
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361 if ( _lazyLoad && !_sessionsLoaded) |
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362 { |
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363 try |
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364 { |
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365 restoreSessions(); |
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366 } |
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367 catch(Exception e) |
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368 { |
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369 __log.warn(e); |
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370 } |
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371 } |
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372 |
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373 Map<String,HashedSession> sessions=_sessions; |
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374 if (sessions==null) |
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375 return null; |
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376 |
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377 HashedSession session = sessions.get(idInCluster); |
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378 |
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379 if (session == null && _lazyLoad) |
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380 session=restoreSession(idInCluster); |
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381 if (session == null) |
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382 return null; |
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383 |
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384 if (_idleSavePeriodMs!=0) |
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385 session.deIdle(); |
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386 |
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387 return session; |
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388 } |
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389 |
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390 /* ------------------------------------------------------------ */ |
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391 @Override |
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392 protected void invalidateSessions() throws Exception |
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393 { |
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394 // Invalidate all sessions to cause unbind events |
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395 ArrayList<HashedSession> sessions=new ArrayList<HashedSession>(_sessions.values()); |
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396 int loop=100; |
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397 while (sessions.size()>0 && loop-->0) |
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398 { |
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399 // If we are called from doStop |
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400 if (isStopping() && _storeDir != null && _storeDir.exists() && _storeDir.canWrite()) |
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401 { |
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402 // Then we only save and remove the session - it is not invalidated. |
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403 for (HashedSession session : sessions) |
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404 { |
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405 session.save(false); |
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406 removeSession(session,false); |
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407 } |
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408 } |
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409 else |
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410 { |
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411 for (HashedSession session : sessions) |
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412 session.invalidate(); |
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413 } |
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414 |
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415 // check that no new sessions were created while we were iterating |
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416 sessions=new ArrayList<HashedSession>(_sessions.values()); |
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417 } |
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418 } |
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419 |
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420 /* ------------------------------------------------------------ */ |
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421 @Override |
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422 protected AbstractSession newSession(HttpServletRequest request) |
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423 { |
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424 return new HashedSession(this, request); |
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425 } |
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426 |
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427 /* ------------------------------------------------------------ */ |
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428 protected AbstractSession newSession(long created, long accessed, String clusterId) |
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429 { |
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430 return new HashedSession(this, created,accessed, clusterId); |
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431 } |
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432 |
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433 /* ------------------------------------------------------------ */ |
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434 @Override |
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435 protected boolean removeSession(String clusterId) |
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436 { |
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437 return _sessions.remove(clusterId)!=null; |
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438 } |
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439 |
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440 /* ------------------------------------------------------------ */ |
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parents:
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441 public void setStoreDirectory (File dir) throws IOException |
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parents:
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changeset
|
442 { |
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parents:
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443 // CanonicalFile is used to capture the base store directory in a way that will |
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parents:
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changeset
|
444 // work on Windows. Case differences may through off later checks using this directory. |
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parents:
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445 _storeDir=dir.getCanonicalFile(); |
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parents:
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|
446 } |
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parents:
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|
447 |
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parents:
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|
448 /* ------------------------------------------------------------ */ |
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parents:
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449 public File getStoreDirectory () |
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|
450 { |
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451 return _storeDir; |
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|
452 } |
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parents:
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|
453 |
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parents:
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|
454 /* ------------------------------------------------------------ */ |
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parents:
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455 public void setLazyLoad(boolean lazyLoad) |
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|
456 { |
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457 _lazyLoad = lazyLoad; |
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|
458 } |
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|
459 |
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parents:
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|
460 /* ------------------------------------------------------------ */ |
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|
461 public boolean isLazyLoad() |
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462 { |
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463 return _lazyLoad; |
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|
464 } |
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|
465 |
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|
466 /* ------------------------------------------------------------ */ |
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467 public boolean isDeleteUnrestorableSessions() |
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|
468 { |
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469 return _deleteUnrestorableSessions; |
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|
470 } |
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parents:
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|
471 |
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parents:
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|
472 /* ------------------------------------------------------------ */ |
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|
473 public void setDeleteUnrestorableSessions(boolean deleteUnrestorableSessions) |
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|
474 { |
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475 _deleteUnrestorableSessions = deleteUnrestorableSessions; |
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|
476 } |
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parents:
diff
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|
477 |
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parents:
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|
478 /* ------------------------------------------------------------ */ |
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parents:
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|
479 public void restoreSessions () throws Exception |
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parents:
diff
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|
480 { |
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parents:
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|
481 _sessionsLoaded = true; |
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|
482 |
3428c60d7cfc
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parents:
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483 if (_storeDir==null || !_storeDir.exists()) |
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parents:
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changeset
|
484 { |
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parents:
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changeset
|
485 return; |
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parents:
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changeset
|
486 } |
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parents:
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|
487 |
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parents:
diff
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|
488 if (!_storeDir.canRead()) |
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parents:
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|
489 { |
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parents:
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|
490 __log.warn ("Unable to restore Sessions: Cannot read from Session storage directory "+_storeDir.getAbsolutePath()); |
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parents:
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|
491 return; |
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parents:
diff
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|
492 } |
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parents:
diff
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|
493 |
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parents:
diff
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|
494 String[] files = _storeDir.list(); |
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parents:
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|
495 for (int i=0;files!=null&&i<files.length;i++) |
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|
496 { |
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parents:
diff
changeset
|
497 restoreSession(files[i]); |
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parents:
diff
changeset
|
498 } |
3428c60d7cfc
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parents:
diff
changeset
|
499 } |
3428c60d7cfc
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parents:
diff
changeset
|
500 |
3428c60d7cfc
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parents:
diff
changeset
|
501 /* ------------------------------------------------------------ */ |
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parents:
diff
changeset
|
502 protected synchronized HashedSession restoreSession(String idInCuster) |
3428c60d7cfc
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parents:
diff
changeset
|
503 { |
3428c60d7cfc
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parents:
diff
changeset
|
504 File file = new File(_storeDir,idInCuster); |
3428c60d7cfc
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parents:
diff
changeset
|
505 |
3428c60d7cfc
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parents:
diff
changeset
|
506 FileInputStream in = null; |
3428c60d7cfc
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parents:
diff
changeset
|
507 Exception error = null; |
3428c60d7cfc
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parents:
diff
changeset
|
508 try |
3428c60d7cfc
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parents:
diff
changeset
|
509 { |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
510 if (file.exists()) |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
511 { |
3428c60d7cfc
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parents:
diff
changeset
|
512 in = new FileInputStream(file); |
3428c60d7cfc
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parents:
diff
changeset
|
513 HashedSession session = restoreSession(in, null); |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
514 addSession(session, false); |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
515 session.didActivate(); |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
516 return session; |
3428c60d7cfc
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parents:
diff
changeset
|
517 } |
3428c60d7cfc
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parents:
diff
changeset
|
518 } |
3428c60d7cfc
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parents:
diff
changeset
|
519 catch (Exception e) |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
520 { |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
521 error = e; |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
522 } |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
523 finally |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
524 { |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
525 if (in != null) IO.close(in); |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
526 |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
527 if (error != null) |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
528 { |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
529 if (isDeleteUnrestorableSessions() && file.exists() && file.getParentFile().equals(_storeDir) ) |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
530 { |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
531 file.delete(); |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
532 __log.warn("Deleting file for unrestorable session "+idInCuster, error); |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
533 } |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
534 else |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
535 { |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
536 __log.warn("Problem restoring session "+idInCuster, error); |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
537 } |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
538 } |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
539 else |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
540 file.delete(); //delete successfully restored file |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
541 |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
542 } |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
543 return null; |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
544 } |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
545 |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
546 /* ------------------------------------------------------------ */ |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
547 public void saveSessions(boolean reactivate) throws Exception |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
548 { |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
549 if (_storeDir==null || !_storeDir.exists()) |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
550 { |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
551 return; |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
552 } |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
553 |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
554 if (!_storeDir.canWrite()) |
3428c60d7cfc
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Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
555 { |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
556 __log.warn ("Unable to save Sessions: Session persistence storage directory "+_storeDir.getAbsolutePath()+ " is not writeable"); |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
557 return; |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
558 } |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
559 |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
560 for (HashedSession session : _sessions.values()) |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
561 session.save(true); |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
562 } |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
563 |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
564 /* ------------------------------------------------------------ */ |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
565 public HashedSession restoreSession (InputStream is, HashedSession session) throws Exception |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
566 { |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
567 /* |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
568 * Take care of this class's fields first by calling |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
569 * defaultReadObject |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
570 */ |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
571 DataInputStream in = new DataInputStream(is); |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
572 try |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
573 { |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
574 String clusterId = in.readUTF(); |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
575 in.readUTF(); // nodeId |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
576 long created = in.readLong(); |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
577 long accessed = in.readLong(); |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
578 int requests = in.readInt(); |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
579 |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
580 if (session == null) |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
581 session = (HashedSession)newSession(created, accessed, clusterId); |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
582 session.setRequests(requests); |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
583 int size = in.readInt(); |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
584 if (size>0) |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
585 { |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
586 ClassLoadingObjectInputStream ois = new ClassLoadingObjectInputStream(in); |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
587 try |
3428c60d7cfc
replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff
changeset
|
588 { |
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589 for (int i=0; i<size;i++) |
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590 { |
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591 String key = ois.readUTF(); |
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592 Object value = ois.readObject(); |
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593 session.setAttribute(key,value); |
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594 } |
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595 } |
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596 finally |
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597 { |
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598 IO.close(ois); |
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599 } |
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600 } |
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601 return session; |
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602 } |
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603 finally |
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604 { |
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605 IO.close(in); |
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606 } |
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607 } |
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608 |
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609 |
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610 /* ------------------------------------------------------------ */ |
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611 /* ------------------------------------------------------------ */ |
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612 protected class ClassLoadingObjectInputStream extends ObjectInputStream |
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613 { |
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614 /* ------------------------------------------------------------ */ |
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615 public ClassLoadingObjectInputStream(java.io.InputStream in) throws IOException |
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616 { |
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617 super(in); |
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618 } |
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619 |
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620 /* ------------------------------------------------------------ */ |
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621 public ClassLoadingObjectInputStream () throws IOException |
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622 { |
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623 super(); |
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624 } |
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625 |
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626 /* ------------------------------------------------------------ */ |
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627 @Override |
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628 public Class<?> resolveClass (java.io.ObjectStreamClass cl) throws IOException, ClassNotFoundException |
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629 { |
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630 try |
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631 { |
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632 return Class.forName(cl.getName(), false, Thread.currentThread().getContextClassLoader()); |
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633 } |
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634 catch (ClassNotFoundException e) |
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635 { |
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636 return super.resolveClass(cl); |
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637 } |
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638 } |
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639 } |
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640 } |