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annotate src/org/eclipse/jetty/server/handler/RequestLogHandler.java @ 915:65e0fba5861a

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minor
author Franklin Schmidt <fschmidt@gmail.com>
date Sun, 09 Oct 2016 01:52:29 -0600
parents ea1768c00d03
children 23a57aad34c0
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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.File;
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22 import java.io.FileOutputStream;
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23 import java.io.OutputStream;
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24 import java.io.OutputStreamWriter;
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25 import java.io.Writer;
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26 import java.io.IOException;
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27 import java.text.DateFormat;
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28 import java.text.SimpleDateFormat;
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29 import java.util.Locale;
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30 import java.util.TimeZone;
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31
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32 import javax.servlet.DispatcherType;
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33 import javax.servlet.ServletException;
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34 import javax.servlet.http.Cookie;
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35 import javax.servlet.http.HttpServletRequest;
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36 import javax.servlet.http.HttpServletResponse;
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37
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38 import org.eclipse.jetty.continuation.Continuation;
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39 import org.eclipse.jetty.continuation.ContinuationListener;
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40 import org.eclipse.jetty.http.HttpHeaders;
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41 import org.eclipse.jetty.server.AsyncContinuation;
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42 import org.eclipse.jetty.server.Request;
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43 import org.eclipse.jetty.server.Response;
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44 import org.eclipse.jetty.server.Server;
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45 import org.eclipse.jetty.util.component.AbstractLifeCycle;
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46 import org.slf4j.Logger;
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47 import org.slf4j.LoggerFactory;
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48
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49
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50 /**
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51 * RequestLogHandler.
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52 * This handler can be used to wrap an individual context for context logging.
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53 *
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54 * @org.apache.xbean.XBean
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55 */
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56 public class RequestLogHandler extends HandlerWrapper
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57 {
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58 private static final Logger LOG = LoggerFactory.getLogger(RequestLogHandler.class);
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59
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60 /* ------------------------------------------------------------ */
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61 /*
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62 * @see org.eclipse.jetty.server.server.Handler#handle(java.lang.String, javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse, int)
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63 */
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64 @Override
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65 public void handle(String target, final Request baseRequest, HttpServletRequest request, final HttpServletResponse response)
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66 throws IOException, ServletException
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67 {
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68 AsyncContinuation continuation = baseRequest.getAsyncContinuation();
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69 if (!continuation.isInitial())
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70 {
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71 baseRequest.setDispatchTime(System.currentTimeMillis());
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72 }
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73
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74 try
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75 {
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76 super.handle(target, baseRequest, request, response);
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77 }
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78 finally
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79 {
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80 if (baseRequest.getDispatcherType().equals(DispatcherType.REQUEST))
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81 {
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82 if (continuation.isAsync())
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83 {
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84 if (continuation.isInitial())
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85 continuation.addContinuationListener(new ContinuationListener()
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86 {
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87
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88 public void onTimeout(Continuation continuation)
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89 {
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90
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91 }
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92
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93 public void onComplete(Continuation continuation)
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94 {
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95 log(baseRequest, (Response)response);
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96 }
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97 });
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98 }
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99 else
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100 log(baseRequest, (Response)response);
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101 }
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102 }
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103 }
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104
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105 /* ------------------------------------------------------------ */
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106
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107 /* ------------------------------------------------------------ */
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108 /*
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109 * @see org.eclipse.jetty.server.server.handler.HandlerWrapper#doStart()
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110 */
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111 @Override
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112 protected void doStart() throws Exception
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113 {
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114 super.doStart();
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115 startLog();
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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.server.server.handler.HandlerWrapper#doStop()
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121 */
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122 @Override
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123 protected void doStop() throws Exception
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124 {
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125 super.doStop();
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126 stopLog();
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127 }
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128
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129
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130
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131 // from NCSARequestLog
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132
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133 public String filename = null;
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134 private boolean extended = false;
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135 public long retainTime = 1000L*60*60*24*31; // 31 days
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136 private boolean _closeOut;
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137 public boolean preferProxiedForAddress = false;
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138 public String logDateFormat = "dd/MMM/yyyy:HH:mm:ss Z";
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139 public Locale logLocale = Locale.getDefault();
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140 public TimeZone timeZone = TimeZone.getTimeZone("GMT");
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141 public boolean logLatency = false;
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142 public boolean logCookies = false;
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143 public boolean logServer = false;
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144 public boolean logDispatch = false;
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145
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146 private transient OutputStream _out;
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147 private transient DateFormat dateFormat;
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148 private transient Writer _writer;
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149
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150 /* ------------------------------------------------------------ */
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151 /**
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152 * Writes the request and response information to the output stream.
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153 *
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154 * @see org.eclipse.jetty.server.RequestLog#log(org.eclipse.jetty.server.Request, org.eclipse.jetty.server.Response)
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155 */
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156 public void log(Request request, Response response)
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157 {
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158 try
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159 {
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160 if (_out == null)
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161 return;
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162
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163 StringBuilder buf = new StringBuilder(256);
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164
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165 if (logServer)
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166 {
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167 buf.append(request.getServerName());
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168 buf.append(' ');
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169 }
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170
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171 String addr = null;
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172 if (preferProxiedForAddress)
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173 {
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174 addr = request.getHeader(HttpHeaders.X_FORWARDED_FOR);
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175 }
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176
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177 if (addr == null)
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178 addr = request.getRemoteAddr();
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179
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180 buf.append(addr);
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181 buf.append(" - [");
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182
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183 synchronized(dateFormat) {
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184 buf.append(dateFormat.format(request.getTimeStamp()));
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185 }
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186
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187 buf.append("] \"");
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188 buf.append(request.getMethod());
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189 buf.append(' ');
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190 buf.append(request.getUri().toString());
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191 buf.append(' ');
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192 buf.append(request.getProtocol());
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193 buf.append("\" ");
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194 if (request.getAsyncContinuation().isInitial())
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195 {
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196 int status = response.getStatus();
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197 if (status <= 0)
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198 status = 404;
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199 buf.append((char)('0' + ((status / 100) % 10)));
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200 buf.append((char)('0' + ((status / 10) % 10)));
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201 buf.append((char)('0' + (status % 10)));
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202 }
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203 else
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204 buf.append("Async");
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205
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206 long responseLength = response.getContentCount();
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207 if (responseLength >= 0)
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208 {
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209 buf.append(' ');
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210 if (responseLength > 99999)
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211 buf.append(responseLength);
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212 else
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213 {
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214 if (responseLength > 9999)
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215 buf.append((char)('0' + ((responseLength / 10000) % 10)));
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216 if (responseLength > 999)
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217 buf.append((char)('0' + ((responseLength / 1000) % 10)));
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218 if (responseLength > 99)
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219 buf.append((char)('0' + ((responseLength / 100) % 10)));
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220 if (responseLength > 9)
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221 buf.append((char)('0' + ((responseLength / 10) % 10)));
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222 buf.append((char)('0' + (responseLength) % 10));
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223 }
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224 buf.append(' ');
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225 }
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226 else
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227 buf.append(" - ");
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228
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229
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230 if (extended)
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231 logExtended(request, response, buf);
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232
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233 if (logCookies)
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234 {
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235 Cookie[] cookies = request.getCookies();
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236 if (cookies == null || cookies.length == 0)
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237 buf.append(" -");
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238 else
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239 {
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240 buf.append(" \"");
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241 for (int i = 0; i < cookies.length; i++)
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242 {
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243 if (i != 0)
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244 buf.append(';');
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245 buf.append(cookies[i].getName());
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246 buf.append('=');
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247 buf.append(cookies[i].getValue());
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248 }
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249 buf.append('\"');
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250 }
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251 }
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252
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253 if (logDispatch || logLatency)
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254 {
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255 long now = System.currentTimeMillis();
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256
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257 if (logDispatch)
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258 {
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259 long d = request.getDispatchTime();
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260 buf.append(' ');
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261 buf.append(now - (d==0 ? request.getTimeStamp():d));
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262 }
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263
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264 if (logLatency)
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265 {
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266 buf.append(' ');
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267 buf.append(now - request.getTimeStamp());
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268 }
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269 }
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270
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271 buf.append('\n');
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272
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273 String log = buf.toString();
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274 write(log);
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275 }
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276 catch (IOException e)
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277 {
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278 LOG.warn("",e);
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279 }
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280 }
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281
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282 /* ------------------------------------------------------------ */
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283 protected synchronized void write(String log) throws IOException
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284 {
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285 if (_writer==null)
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286 return;
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287 _writer.write(log);
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288 _writer.flush();
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289 }
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290
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291
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diff changeset
292 /* ------------------------------------------------------------ */
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293 /**
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294 * Writes extended request and response information to the output stream.
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295 *
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296 * @param request request object
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297 * @param response response object
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298 * @param b StringBuilder to write to
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299 * @throws IOException
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300 */
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301 protected void logExtended(Request request,
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302 Response response,
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303 StringBuilder b) throws IOException
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304 {
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diff changeset
305 String referer = request.getHeader(HttpHeaders.REFERER);
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306 if (referer == null)
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diff changeset
307 b.append("\"-\" ");
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308 else
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309 {
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310 b.append('"');
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311 b.append(referer);
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312 b.append("\" ");
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313 }
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314
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315 String agent = request.getHeader(HttpHeaders.USER_AGENT);
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316 if (agent == null)
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317 b.append("\"-\" ");
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318 else
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319 {
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320 b.append('"');
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321 b.append(agent);
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322 b.append('"');
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323 }
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324 }
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325
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326 private synchronized void startLog() throws Exception {
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327 dateFormat = new SimpleDateFormat(logDateFormat,logLocale);
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328 dateFormat.setTimeZone(timeZone);
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329
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330 if (filename != null) {
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331 File file = new File(filename);
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332 if( file.exists() ) {
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333 File old = new File(filename+".old");
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334 if( old.exists() && file.lastModified() - old.lastModified() > retainTime )
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335 old.delete();
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336 if( !old.exists() )
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337 file.renameTo(old);
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338 }
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339 _out = new FileOutputStream(file,true);
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340 _closeOut = true;
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341 LOG.info("Opened " + filename);
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342 }
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343 else
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344 _out = System.err;
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345
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346 _writer = new OutputStreamWriter(_out);
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347 }
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348
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349 private synchronized void stopLog() throws Exception {
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350 try {
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351 if (_writer != null)
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352 _writer.flush();
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353 } catch (IOException e) {
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354 LOG.trace("",e);
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355 }
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356 if (_closeOut) {
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357 try {
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358 _out.close();
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359 } catch (IOException e) {
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360 LOG.trace("",e);
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361 }
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362 }
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363 _out = null;
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364 _closeOut = false;
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365 dateFormat = null;
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366 _writer = null;
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367 }
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368
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369 }