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annotate src/org/eclipse/jetty/server/handler/ContextHandler.java @ 997:7d28be82ab75

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simplify Request
author Franklin Schmidt <fschmidt@gmail.com>
date Tue, 18 Oct 2016 22:43:17 -0600
parents 0eba8f555c19
children 32d4b569567c
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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.IOException;
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23 import java.io.InputStream;
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24 import java.net.MalformedURLException;
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25 import java.net.URL;
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26 import java.net.URLClassLoader;
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27 import java.security.AccessController;
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28 import java.util.ArrayList;
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29 import java.util.Arrays;
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30 import java.util.Collections;
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31 import java.util.Enumeration;
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32 import java.util.EventListener;
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33 import java.util.HashMap;
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34 import java.util.HashSet;
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35 import java.util.Iterator;
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36 import java.util.List;
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37 import java.util.Locale;
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38 import java.util.Map;
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39 import java.util.Set;
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40 import java.util.concurrent.CopyOnWriteArrayList;
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41
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42 import javax.servlet.RequestDispatcher;
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43 import javax.servlet.Servlet;
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44 import javax.servlet.ServletContext;
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45 import javax.servlet.ServletContextAttributeEvent;
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46 import javax.servlet.ServletContextAttributeListener;
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47 import javax.servlet.ServletContextEvent;
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48 import javax.servlet.ServletContextListener;
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49 import javax.servlet.ServletException;
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50 import javax.servlet.ServletRegistration;
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51 import javax.servlet.ServletRequestAttributeListener;
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52 import javax.servlet.ServletRequestEvent;
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53 import javax.servlet.ServletRequestListener;
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54 import javax.servlet.SessionCookieConfig;
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55 import javax.servlet.SessionTrackingMode;
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56 import javax.servlet.Filter;
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57 import javax.servlet.FilterRegistration;
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58 import javax.servlet.FilterRegistration.Dynamic;
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59 import javax.servlet.descriptor.JspConfigDescriptor;
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60 import javax.servlet.http.HttpServletRequest;
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61 import javax.servlet.http.HttpServletResponse;
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62
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63 import org.eclipse.jetty.http.HttpException;
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64 import org.eclipse.jetty.http.MimeTypes;
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65 import org.eclipse.jetty.io.Buffer;
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66 import org.eclipse.jetty.server.AbstractHttpConnection;
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67 import org.eclipse.jetty.server.Handler;
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68 import org.eclipse.jetty.server.HandlerContainer;
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69 import org.eclipse.jetty.server.Request;
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70 import org.eclipse.jetty.util.AttributesMap;
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71 import org.eclipse.jetty.util.StringUtil;
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72 import org.eclipse.jetty.util.TypeUtil;
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73 import org.eclipse.jetty.util.URIUtil;
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74 import org.eclipse.jetty.util.component.AggregateLifeCycle;
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75 import org.eclipse.jetty.util.component.Dumpable;
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76 import org.slf4j.Logger;
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77 import org.slf4j.LoggerFactory;
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78 import org.eclipse.jetty.util.resource.Resource;
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79
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80 /* ------------------------------------------------------------ */
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81 /**
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82 * ContextHandler.
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83 *
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84 * This handler wraps a call to handle by setting the context and servlet path.
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85 *
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86 */
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87 public final class ContextHandler extends HandlerWrapper
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88 {
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89 private static final Logger LOG = LoggerFactory.getLogger(ContextHandler.class);
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90
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91 private String _contextPath = "/";
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92 private Resource _baseResource;
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93 private Logger _logger;
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94
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95 public ContextHandler()
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96 {
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97 super();
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98 }
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99
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100 public ContextHandler(String contextPath)
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101 {
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102 this();
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103 setContextPath(contextPath);
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104 }
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105
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106 public ContextHandler(HandlerContainer parent, String contextPath)
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107 {
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108 this();
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109 setContextPath(contextPath);
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110 if (parent instanceof HandlerWrapper)
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111 ((HandlerWrapper)parent).setHandler(this);
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112 else if (parent instanceof HandlerCollection)
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113 ((HandlerCollection)parent).addHandler(this);
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114 }
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115
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116 @Override
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117 public void dump(Appendable out, String indent) throws IOException
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118 {
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119 dumpThis(out);
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120 dump(out,indent,TypeUtil.asList(getHandlers()),getBeans());
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121 }
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122
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123 public String getContextPath()
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124 {
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125 return _contextPath;
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126 }
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127
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128 /* ------------------------------------------------------------ */
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129 /*
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130 * @see org.eclipse.thread.AbstractLifeCycle#doStart()
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131 */
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132 @Override
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133 protected void doStart() throws Exception
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134 {
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135 if (_contextPath == null)
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136 throw new IllegalStateException("Null contextPath");
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137
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138 _logger = LoggerFactory.getLogger(getContextPath());
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139
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140 super.doStart();
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141 }
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142
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143 /* ------------------------------------------------------------ */
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144 /*
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145 * @see org.eclipse.thread.AbstractLifeCycle#doStop()
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146 */
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147 @Override
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148 protected void doStop() throws Exception
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149 {
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150 super.doStop();
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151 LOG.info("stopped {}",this);
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152 }
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153
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154 private boolean checkContext(final String target, final Request baseRequest, final HttpServletResponse response) throws IOException, ServletException
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155 {
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156 if (baseRequest.isHandled())
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157 return false;
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158
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159 // Are we not the root context?
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160 if (_contextPath.length() > 1)
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161 {
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162 // reject requests that are not for us
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diff changeset
163 if (!target.startsWith(_contextPath))
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164 return false;
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165 if (target.length() > _contextPath.length() && target.charAt(_contextPath.length()) != '/')
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166 return false;
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167
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168 // redirect null path infos
991
688c39c50ee3 simplify ContextHandler
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diff changeset
169 if (_contextPath.length() == target.length())
802
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170 {
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171 // context request must end with /
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172 baseRequest.setHandled(true);
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173 if (baseRequest.getQueryString() != null)
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174 response.sendRedirect(URIUtil.addPaths(baseRequest.getRequestURI(),URIUtil.SLASH) + "?" + baseRequest.getQueryString());
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175 else
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176 response.sendRedirect(URIUtil.addPaths(baseRequest.getRequestURI(),URIUtil.SLASH));
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177 return false;
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178 }
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179 }
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180
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181 return true;
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182 }
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183
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184 @Override
993
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diff changeset
185 public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
802
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186 {
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187 String old_context_path = null;
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188 String old_path_info = null;
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189 String pathInfo = target;
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190
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4e9d373bf6e9 remove ContextHandler.Context
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diff changeset
191 ContextHandler oldContextHandler = baseRequest._contextHandler;
802
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192
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193 // Are we already in this context?
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194 if (oldContextHandler != this)
802
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195 {
991
688c39c50ee3 simplify ContextHandler
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diff changeset
196 if (!checkContext(target,baseRequest,response))
688c39c50ee3 simplify ContextHandler
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diff changeset
197 return;
802
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198
991
688c39c50ee3 simplify ContextHandler
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199 if (target.length() > _contextPath.length())
688c39c50ee3 simplify ContextHandler
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200 {
688c39c50ee3 simplify ContextHandler
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diff changeset
201 if (_contextPath.length() > 1)
688c39c50ee3 simplify ContextHandler
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diff changeset
202 target = target.substring(_contextPath.length());
688c39c50ee3 simplify ContextHandler
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203 pathInfo = target;
802
3428c60d7cfc replace jetty jars with source
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diff changeset
204 }
991
688c39c50ee3 simplify ContextHandler
Franklin Schmidt <fschmidt@gmail.com>
parents: 989
diff changeset
205 else if (_contextPath.length() == 1)
802
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diff changeset
206 {
991
688c39c50ee3 simplify ContextHandler
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207 target = URIUtil.SLASH;
688c39c50ee3 simplify ContextHandler
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diff changeset
208 pathInfo = URIUtil.SLASH;
688c39c50ee3 simplify ContextHandler
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diff changeset
209 }
688c39c50ee3 simplify ContextHandler
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diff changeset
210 else
688c39c50ee3 simplify ContextHandler
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diff changeset
211 {
688c39c50ee3 simplify ContextHandler
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diff changeset
212 target = URIUtil.SLASH;
688c39c50ee3 simplify ContextHandler
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diff changeset
213 pathInfo = null;
802
3428c60d7cfc replace jetty jars with source
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diff changeset
214 }
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215 }
3428c60d7cfc replace jetty jars with source
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diff changeset
216
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
217 try
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diff changeset
218 {
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diff changeset
219 old_context_path = baseRequest.getContextPath();
3428c60d7cfc replace jetty jars with source
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diff changeset
220 old_path_info = baseRequest.getPathInfo();
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
221
3428c60d7cfc replace jetty jars with source
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diff changeset
222 // Update the paths
994
4e9d373bf6e9 remove ContextHandler.Context
Franklin Schmidt <fschmidt@gmail.com>
parents: 993
diff changeset
223 baseRequest._contextHandler = this;
991
688c39c50ee3 simplify ContextHandler
Franklin Schmidt <fschmidt@gmail.com>
parents: 989
diff changeset
224 if (target.startsWith("/"))
802
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
225 {
3428c60d7cfc replace jetty jars with source
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diff changeset
226 if (_contextPath.length() == 1)
3428c60d7cfc replace jetty jars with source
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diff changeset
227 baseRequest.setContextPath("");
3428c60d7cfc replace jetty jars with source
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diff changeset
228 else
3428c60d7cfc replace jetty jars with source
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diff changeset
229 baseRequest.setContextPath(_contextPath);
3428c60d7cfc replace jetty jars with source
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diff changeset
230 baseRequest.setPathInfo(pathInfo);
3428c60d7cfc replace jetty jars with source
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diff changeset
231 }
3428c60d7cfc replace jetty jars with source
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diff changeset
232
993
d9d95acded81 remove ScopedHandler
Franklin Schmidt <fschmidt@gmail.com>
parents: 992
diff changeset
233 try
d9d95acded81 remove ScopedHandler
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diff changeset
234 {
d9d95acded81 remove ScopedHandler
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diff changeset
235 super.handle(target,baseRequest,request,response);
d9d95acded81 remove ScopedHandler
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diff changeset
236 }
d9d95acded81 remove ScopedHandler
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diff changeset
237 catch (HttpException e)
d9d95acded81 remove ScopedHandler
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diff changeset
238 {
d9d95acded81 remove ScopedHandler
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diff changeset
239 LOG.debug("",e);
d9d95acded81 remove ScopedHandler
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diff changeset
240 baseRequest.setHandled(true);
d9d95acded81 remove ScopedHandler
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diff changeset
241 response.sendError(e.getStatus(),e.getReason());
d9d95acded81 remove ScopedHandler
Franklin Schmidt <fschmidt@gmail.com>
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diff changeset
242 }
802
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
243 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
244 finally
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
245 {
994
4e9d373bf6e9 remove ContextHandler.Context
Franklin Schmidt <fschmidt@gmail.com>
parents: 993
diff changeset
246 if (oldContextHandler != this)
802
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
247 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
248 // reset the context and servlet path.
994
4e9d373bf6e9 remove ContextHandler.Context
Franklin Schmidt <fschmidt@gmail.com>
parents: 993
diff changeset
249 baseRequest._contextHandler = oldContextHandler;
802
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
250 baseRequest.setContextPath(old_context_path);
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
251 baseRequest.setPathInfo(old_path_info);
3428c60d7cfc replace jetty jars with source
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diff changeset
252 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
253 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
254 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
255
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
256 public void setContextPath(String contextPath)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
257 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
258 if (contextPath != null && contextPath.length() > 1 && contextPath.endsWith("/"))
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
259 throw new IllegalArgumentException("ends with /");
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
260 _contextPath = contextPath;
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
261 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
262
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
263 public Resource getBaseResource()
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
264 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
265 return _baseResource;
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
266 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
267
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
268 public String getResourceBase()
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
269 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
270 if (_baseResource == null)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
271 return null;
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
272 return _baseResource.toString();
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
273 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
274
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
275 public void setBaseResource(Resource base)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
276 {
3428c60d7cfc replace jetty jars with source
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diff changeset
277 _baseResource = base;
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
278 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
279
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
280 public void setResourceBase(String resourceBase)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
281 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
282 try
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
283 {
991
688c39c50ee3 simplify ContextHandler
Franklin Schmidt <fschmidt@gmail.com>
parents: 989
diff changeset
284 setBaseResource(Resource.newResource(resourceBase));
802
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
285 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
286 catch (Exception e)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
287 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
288 LOG.warn(e.toString());
820
8e9db0bbf4f9 remove org.eclipse.jetty.util.log and upgrade slf4j
Franklin Schmidt <fschmidt@gmail.com>
parents: 802
diff changeset
289 LOG.debug("",e);
802
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
290 throw new IllegalArgumentException(resourceBase);
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
291 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
292 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
293
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
294 @Override
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
295 public String toString()
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
296 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
297 StringBuilder b = new StringBuilder();
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
298
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
299 Package pkg = getClass().getPackage();
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
300 if (pkg != null)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
301 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
302 String p = pkg.getName();
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
303 if (p != null && p.length() > 0)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
304 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
305 String[] ss = p.split("\\.");
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
306 for (String s : ss)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
307 b.append(s.charAt(0)).append('.');
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
308 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
309 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
310 b.append(getClass().getSimpleName());
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
311 b.append('{').append(getContextPath()).append(',').append(getBaseResource());
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
312
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
313 b.append('}');
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
314
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
315 return b.toString();
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
316 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
317
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
318 public Resource getResource(String path) throws MalformedURLException
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
319 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
320 if (path == null || !path.startsWith(URIUtil.SLASH))
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
321 throw new MalformedURLException(path);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
322
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
323 if (_baseResource == null)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
324 return null;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
325
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
326 try
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
327 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
328 path = URIUtil.canonicalPath(path);
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
329 Resource resource = _baseResource.addPath(path);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
330
991
688c39c50ee3 simplify ContextHandler
Franklin Schmidt <fschmidt@gmail.com>
parents: 989
diff changeset
331 if (resource.getAlias() == null) // check not alias
802
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
332 return resource;
3428c60d7cfc replace jetty jars with source
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333 return null;
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334 }
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335 catch (Exception e)
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336 {
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337 LOG.trace("",e);
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338 }
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339
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340 return null;
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341 }
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342
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343 public Set<String> getResourcePaths(String path)
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344 {
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345 try
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346 {
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347 path = URIUtil.canonicalPath(path);
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348 Resource resource = getResource(path);
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349
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350 if (resource != null && resource.exists())
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351 {
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352 if (!path.endsWith(URIUtil.SLASH))
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353 path = path + URIUtil.SLASH;
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354
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355 String[] l = resource.list();
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356 if (l != null)
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357 {
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358 HashSet<String> set = new HashSet<String>();
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359 for (int i = 0; i < l.length; i++)
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360 set.add(path + l[i]);
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361 return set;
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362 }
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363 }
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364 }
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365 catch (Exception e)
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366 {
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367 LOG.trace("",e);
802
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368 }
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369 return Collections.emptySet();
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370 }
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371 }