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annotate src/org/eclipse/jetty/util/resource/Resource.java @ 803:166b16bda630

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remove org.eclipse.jetty.util.preventers
author Franklin Schmidt <fschmidt@gmail.com>
date Wed, 07 Sep 2016 21:21:32 -0600
parents 3428c60d7cfc
children 8e9db0bbf4f9
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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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.util.resource;
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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.IOException;
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24 import java.io.InputStream;
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25 import java.io.OutputStream;
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26 import java.net.MalformedURLException;
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27 import java.net.URI;
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28 import java.net.URL;
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29 import java.net.URLConnection;
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30 import java.text.DateFormat;
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31 import java.util.Arrays;
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32 import java.util.Date;
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33
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34 import org.eclipse.jetty.util.B64Code;
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35 import org.eclipse.jetty.util.IO;
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36 import org.eclipse.jetty.util.Loader;
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37 import org.eclipse.jetty.util.StringUtil;
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38 import org.eclipse.jetty.util.URIUtil;
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39 import org.eclipse.jetty.util.log.Log;
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40 import org.eclipse.jetty.util.log.Logger;
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41
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42
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43 /* ------------------------------------------------------------ */
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44 /**
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45 * Abstract resource class.
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46 */
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47 public abstract class Resource implements ResourceFactory
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48 {
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49 private static final Logger LOG = Log.getLogger(Resource.class);
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50 public static boolean __defaultUseCaches = true;
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51 volatile Object _associate;
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52
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53 /* ------------------------------------------------------------ */
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54 /**
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55 * Change the default setting for url connection caches.
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56 * Subsequent URLConnections will use this default.
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57 * @param useCaches
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58 */
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59 public static void setDefaultUseCaches (boolean useCaches)
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60 {
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61 __defaultUseCaches=useCaches;
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62 }
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63
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64 /* ------------------------------------------------------------ */
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65 public static boolean getDefaultUseCaches ()
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66 {
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67 return __defaultUseCaches;
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68 }
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69
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70 /* ------------------------------------------------------------ */
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71 /** Construct a resource from a uri.
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72 * @param uri A URI.
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73 * @return A Resource object.
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74 * @throws IOException Problem accessing URI
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75 */
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76 public static Resource newResource(URI uri)
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77 throws IOException
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78 {
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79 return newResource(uri.toURL());
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80 }
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81
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82 /* ------------------------------------------------------------ */
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83 /** Construct a resource from a url.
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84 * @param url A URL.
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85 * @return A Resource object.
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86 * @throws IOException Problem accessing URL
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87 */
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88 public static Resource newResource(URL url)
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89 throws IOException
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90 {
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91 return newResource(url, __defaultUseCaches);
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92 }
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93
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94 /* ------------------------------------------------------------ */
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95 /**
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96 * Construct a resource from a url.
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97 * @param url the url for which to make the resource
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98 * @param useCaches true enables URLConnection caching if applicable to the type of resource
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99 * @return
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100 */
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101 static Resource newResource(URL url, boolean useCaches)
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102 {
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103 if (url==null)
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104 return null;
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105
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106 String url_string=url.toExternalForm();
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107 if( url_string.startsWith( "file:"))
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108 {
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109 try
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110 {
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111 FileResource fileResource= new FileResource(url);
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112 return fileResource;
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113 }
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114 catch(Exception e)
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115 {
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116 LOG.debug(Log.EXCEPTION,e);
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117 return new BadResource(url,e.toString());
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118 }
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119 }
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120 else if( url_string.startsWith( "jar:file:"))
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121 {
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122 return new JarFileResource(url, useCaches);
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123 }
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124 else if( url_string.startsWith( "jar:"))
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125 {
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126 return new JarResource(url, useCaches);
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127 }
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128
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129 return new URLResource(url,null,useCaches);
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130 }
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131
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132
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133
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134 /* ------------------------------------------------------------ */
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135 /** Construct a resource from a string.
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136 * @param resource A URL or filename.
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137 * @return A Resource object.
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138 */
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139 public static Resource newResource(String resource)
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140 throws MalformedURLException, IOException
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141 {
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142 return newResource(resource, __defaultUseCaches);
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143 }
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144
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145 /* ------------------------------------------------------------ */
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146 /** Construct a resource from a string.
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147 * @param resource A URL or filename.
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148 * @param useCaches controls URLConnection caching
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149 * @return A Resource object.
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150 */
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151 public static Resource newResource (String resource, boolean useCaches)
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152 throws MalformedURLException, IOException
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153 {
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154 URL url=null;
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155 try
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156 {
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157 // Try to format as a URL?
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158 url = new URL(resource);
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159 }
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160 catch(MalformedURLException e)
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161 {
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162 if(!resource.startsWith("ftp:") &&
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163 !resource.startsWith("file:") &&
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164 !resource.startsWith("jar:"))
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165 {
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166 try
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167 {
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168 // It's a file.
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169 if (resource.startsWith("./"))
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170 resource=resource.substring(2);
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171
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172 File file=new File(resource).getCanonicalFile();
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173 url=Resource.toURL(file);
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174
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175 URLConnection connection=url.openConnection();
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176 connection.setUseCaches(useCaches);
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177 return new FileResource(url,connection,file);
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178 }
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179 catch(Exception e2)
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180 {
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181 LOG.debug(Log.EXCEPTION,e2);
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182 throw e;
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183 }
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184 }
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185 else
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186 {
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187 LOG.warn("Bad Resource: "+resource);
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188 throw e;
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189 }
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190 }
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191
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192 return newResource(url);
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193 }
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194
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195 /* ------------------------------------------------------------ */
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196 public static Resource newResource (File file)
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197 throws MalformedURLException, IOException
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198 {
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199 file = file.getCanonicalFile();
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200 URL url = Resource.toURL(file);
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201
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202 URLConnection connection = url.openConnection();
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203 FileResource fileResource = new FileResource(url, connection, file);
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204 return fileResource;
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205 }
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206
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207 /* ------------------------------------------------------------ */
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208 /** Construct a system resource from a string.
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209 * The resource is tried as classloader resource before being
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210 * treated as a normal resource.
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211 * @param resource Resource as string representation
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212 * @return The new Resource
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213 * @throws IOException Problem accessing resource.
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214 */
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215 public static Resource newSystemResource(String resource)
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216 throws IOException
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217 {
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218 URL url=null;
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219 // Try to format as a URL?
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220 ClassLoader loader=Thread.currentThread().getContextClassLoader();
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221 if (loader!=null)
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222 {
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223 try
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224 {
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225 url = loader.getResource(resource);
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226 if (url == null && resource.startsWith("/"))
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227 url = loader.getResource(resource.substring(1));
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228 }
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229 catch (IllegalArgumentException e)
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230 {
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231 // Catches scenario where a bad Windows path like "C:\dev" is
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232 // improperly escaped, which various downstream classloaders
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233 // tend to have a problem with
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234 url = null;
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235 }
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236 }
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237 if (url==null)
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238 {
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239 loader=Resource.class.getClassLoader();
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240 if (loader!=null)
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241 {
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242 url=loader.getResource(resource);
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243 if (url==null && resource.startsWith("/"))
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244 url=loader.getResource(resource.substring(1));
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245 }
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246 }
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247
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248 if (url==null)
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249 {
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250 url=ClassLoader.getSystemResource(resource);
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251 if (url==null && resource.startsWith("/"))
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252 url=ClassLoader.getSystemResource(resource.substring(1));
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253 }
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254
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255 if (url==null)
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256 return null;
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257
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258 return newResource(url);
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259 }
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260
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261 /* ------------------------------------------------------------ */
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262 /** Find a classpath resource.
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263 */
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264 public static Resource newClassPathResource(String resource)
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265 {
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266 return newClassPathResource(resource,true,false);
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267 }
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268
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269 /* ------------------------------------------------------------ */
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270 /** Find a classpath resource.
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271 * The {@link java.lang.Class#getResource(String)} method is used to lookup the resource. If it is not
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272 * found, then the {@link Loader#getResource(Class, String, boolean)} method is used.
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273 * If it is still not found, then {@link ClassLoader#getSystemResource(String)} is used.
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274 * Unlike {@link ClassLoader#getSystemResource(String)} this method does not check for normal resources.
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275 * @param name The relative name of the resource
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276 * @param useCaches True if URL caches are to be used.
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277 * @param checkParents True if forced searching of parent Classloaders is performed to work around
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278 * loaders with inverted priorities
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279 * @return Resource or null
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280 */
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281 public static Resource newClassPathResource(String name,boolean useCaches,boolean checkParents)
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282 {
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283 URL url=Resource.class.getResource(name);
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284
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285 if (url==null)
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286 url=Loader.getResource(Resource.class,name,checkParents);
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287 if (url==null)
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288 return null;
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289 return newResource(url,useCaches);
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290 }
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291
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292 /* ------------------------------------------------------------ */
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293 public static boolean isContainedIn (Resource r, Resource containingResource) throws MalformedURLException
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294 {
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295 return r.isContainedIn(containingResource);
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296 }
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297
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298 /* ------------------------------------------------------------ */
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299 @Override
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300 protected void finalize()
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301 {
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302 release();
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303 }
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304
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305 /* ------------------------------------------------------------ */
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306 public abstract boolean isContainedIn (Resource r) throws MalformedURLException;
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307
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308
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309 /* ------------------------------------------------------------ */
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310 /** Release any temporary resources held by the resource.
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311 */
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312 public abstract void release();
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313
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314
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315 /* ------------------------------------------------------------ */
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316 /**
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317 * Returns true if the respresened resource exists.
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318 */
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319 public abstract boolean exists();
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320
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321
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322 /* ------------------------------------------------------------ */
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323 /**
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324 * Returns true if the respresenetd resource is a container/directory.
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325 * If the resource is not a file, resources ending with "/" are
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326 * considered directories.
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327 */
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328 public abstract boolean isDirectory();
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329
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330 /* ------------------------------------------------------------ */
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331 /**
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332 * Returns the last modified time
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333 */
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334 public abstract long lastModified();
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335
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336
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337 /* ------------------------------------------------------------ */
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338 /**
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339 * Return the length of the resource
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340 */
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341 public abstract long length();
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342
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343
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parents:
diff changeset
344 /* ------------------------------------------------------------ */
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parents:
diff changeset
345 /**
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diff changeset
346 * Returns an URL representing the given resource
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diff changeset
347 */
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diff changeset
348 public abstract URL getURL();
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349
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parents:
diff changeset
350 /* ------------------------------------------------------------ */
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parents:
diff changeset
351 /**
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diff changeset
352 * Returns an URI representing the given resource
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353 */
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diff changeset
354 public URI getURI()
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parents:
diff changeset
355 {
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parents:
diff changeset
356 try
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parents:
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357 {
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358 return getURL().toURI();
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parents:
diff changeset
359 }
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parents:
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360 catch(Exception e)
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parents:
diff changeset
361 {
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diff changeset
362 throw new RuntimeException(e);
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parents:
diff changeset
363 }
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parents:
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364 }
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parents:
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365
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parents:
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366
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parents:
diff changeset
367 /* ------------------------------------------------------------ */
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parents:
diff changeset
368 /**
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diff changeset
369 * Returns an File representing the given resource or NULL if this
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parents:
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370 * is not possible.
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parents:
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371 */
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diff changeset
372 public abstract File getFile()
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373 throws IOException;
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374
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parents:
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375
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parents:
diff changeset
376 /* ------------------------------------------------------------ */
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parents:
diff changeset
377 /**
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378 * Returns the name of the resource
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379 */
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380 public abstract String getName();
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381
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382
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parents:
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383 /* ------------------------------------------------------------ */
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diff changeset
384 /**
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385 * Returns an input stream to the resource
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386 */
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387 public abstract InputStream getInputStream()
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388 throws java.io.IOException;
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389
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parents:
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390 /* ------------------------------------------------------------ */
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parents:
diff changeset
391 /**
3428c60d7cfc replace jetty jars with source
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diff changeset
392 * Returns an output stream to the resource
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diff changeset
393 */
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394 public abstract OutputStream getOutputStream()
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diff changeset
395 throws java.io.IOException, SecurityException;
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396
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parents:
diff changeset
397 /* ------------------------------------------------------------ */
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parents:
diff changeset
398 /**
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diff changeset
399 * Deletes the given resource
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parents:
diff changeset
400 */
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diff changeset
401 public abstract boolean delete()
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diff changeset
402 throws SecurityException;
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
403
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parents:
diff changeset
404 /* ------------------------------------------------------------ */
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parents:
diff changeset
405 /**
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
406 * Rename the given resource
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parents:
diff changeset
407 */
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diff changeset
408 public abstract boolean renameTo( Resource dest)
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diff changeset
409 throws SecurityException;
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parents:
diff changeset
410
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parents:
diff changeset
411 /* ------------------------------------------------------------ */
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parents:
diff changeset
412 /**
3428c60d7cfc replace jetty jars with source
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diff changeset
413 * Returns a list of resource names contained in the given resource
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parents:
diff changeset
414 * The resource names are not URL encoded.
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parents:
diff changeset
415 */
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diff changeset
416 public abstract String[] list();
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parents:
diff changeset
417
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parents:
diff changeset
418 /* ------------------------------------------------------------ */
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parents:
diff changeset
419 /**
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
420 * Returns the resource contained inside the current resource with the
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
421 * given name.
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
422 * @param path The path segment to add, which should be encoded by the
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
423 * encode method.
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parents:
diff changeset
424 */
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diff changeset
425 public abstract Resource addPath(String path)
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parents:
diff changeset
426 throws IOException,MalformedURLException;
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
427
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parents:
diff changeset
428 /* ------------------------------------------------------------ */
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parents:
diff changeset
429 /** Get a resource from withing this resource.
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parents:
diff changeset
430 * <p>
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parents:
diff changeset
431 * This method is essentially an alias for {@link #addPath(String)}, but without checked exceptions.
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parents:
diff changeset
432 * This method satisfied the {@link ResourceFactory} interface.
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parents:
diff changeset
433 * @see org.eclipse.jetty.util.resource.ResourceFactory#getResource(java.lang.String)
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diff changeset
434 */
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diff changeset
435 public Resource getResource(String path)
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parents:
diff changeset
436 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
437 try
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parents:
diff changeset
438 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
439 return addPath(path);
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
440 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
441 catch(Exception e)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
442 {
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diff changeset
443 LOG.debug(e);
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diff changeset
444 return null;
3428c60d7cfc replace jetty jars with source
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diff changeset
445 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
446 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
447
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
448 /* ------------------------------------------------------------ */
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parents:
diff changeset
449 /** Encode according to this resource type.
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parents:
diff changeset
450 * The default implementation calls URI.encodePath(uri)
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parents:
diff changeset
451 * @param uri
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
452 * @return String encoded for this resource type.
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parents:
diff changeset
453 */
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parents:
diff changeset
454 public String encode(String uri)
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parents:
diff changeset
455 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
456 return URIUtil.encodePath(uri);
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
457 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
458
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
459 /* ------------------------------------------------------------ */
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parents:
diff changeset
460 public Object getAssociate()
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
461 {
3428c60d7cfc replace jetty jars with source
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diff changeset
462 return _associate;
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
463 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
464
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
465 /* ------------------------------------------------------------ */
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parents:
diff changeset
466 public void setAssociate(Object o)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
467 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
468 _associate=o;
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
469 }
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
470
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
471 /* ------------------------------------------------------------ */
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parents:
diff changeset
472 /**
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
473 * @return The canonical Alias of this resource or null if none.
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parents:
diff changeset
474 */
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
475 public URL getAlias()
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parents:
diff changeset
476 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
477 return null;
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
478 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
479
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
480 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
481 /** Get the resource list as a HTML directory listing.
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parents:
diff changeset
482 * @param base The base URL
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parents:
diff changeset
483 * @param parent True if the parent directory should be included
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parents:
diff changeset
484 * @return String of HTML
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
485 */
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parents:
diff changeset
486 public String getListHTML(String base,boolean parent)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
487 throws IOException
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
488 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
489 base=URIUtil.canonicalPath(base);
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
490 if (base==null || !isDirectory())
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
491 return null;
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
492
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
493 String[] ls = list();
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
494 if (ls==null)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
495 return null;
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
496 Arrays.sort(ls);
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
497
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
498 String decodedBase = URIUtil.decodePath(base);
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
499 String title = "Directory: "+deTag(decodedBase);
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
500
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
501 StringBuilder buf=new StringBuilder(4096);
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
502 buf.append("<HTML><HEAD>");
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
503 buf.append("<LINK HREF=\"").append("jetty-dir.css").append("\" REL=\"stylesheet\" TYPE=\"text/css\"/><TITLE>");
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
504 buf.append(title);
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
505 buf.append("</TITLE></HEAD><BODY>\n<H1>");
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
506 buf.append(title);
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
507 buf.append("</H1>\n<TABLE BORDER=0>\n");
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
508
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
509 if (parent)
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
510 {
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
511 buf.append("<TR><TD><A HREF=\"");
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
512 buf.append(URIUtil.addPaths(base,"../"));
3428c60d7cfc replace jetty jars with source
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parents:
diff changeset
513 buf.append("\">Parent Directory</A></TD><TD></TD><TD></TD></TR>\n");
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
514 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
515
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
516 String encodedBase = hrefEncodeURI(base);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
517
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
518 DateFormat dfmt=DateFormat.getDateTimeInstance(DateFormat.MEDIUM,
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
519 DateFormat.MEDIUM);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
520 for (int i=0 ; i< ls.length ; i++)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
521 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
522 Resource item = addPath(ls[i]);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
523
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
524 buf.append("\n<TR><TD><A HREF=\"");
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
525 String path=URIUtil.addPaths(encodedBase,URIUtil.encodePath(ls[i]));
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
526
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
527 buf.append(path);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
528
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
529 if (item.isDirectory() && !path.endsWith("/"))
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
530 buf.append(URIUtil.SLASH);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
531
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
532 // URIUtil.encodePath(buf,path);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
533 buf.append("\">");
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
534 buf.append(deTag(ls[i]));
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
535 buf.append("&nbsp;");
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
536 buf.append("</A></TD><TD ALIGN=right>");
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
537 buf.append(item.length());
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
538 buf.append(" bytes&nbsp;</TD><TD>");
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
539 buf.append(dfmt.format(new Date(item.lastModified())));
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
540 buf.append("</TD></TR>");
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
541 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
542 buf.append("</TABLE>\n");
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
543 buf.append("</BODY></HTML>\n");
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 return buf.toString();
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
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
548 /**
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
549 * Encode any characters that could break the URI string in an HREF.
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
550 * Such as <a href="/path/to;<script>Window.alert("XSS"+'%20'+"here");</script>">Link</a>
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
551 *
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
552 * The above example would parse incorrectly on various browsers as the "<" or '"' characters
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
553 * would end the href attribute value string prematurely.
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
554 *
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
555 * @param raw the raw text to encode.
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
556 * @return the defanged text.
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
557 */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
558 private static String hrefEncodeURI(String raw)
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 StringBuffer buf = null;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
561
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
562 loop:
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
563 for (int i=0;i<raw.length();i++)
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 char c=raw.charAt(i);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
566 switch(c)
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 case '\'':
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
569 case '"':
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
570 case '<':
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
571 case '>':
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
572 buf=new StringBuffer(raw.length()<<1);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
573 break loop;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
574 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
575 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
576 if (buf==null)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
577 return raw;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
578
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
579 for (int i=0;i<raw.length();i++)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
580 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
581 char c=raw.charAt(i);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
582 switch(c)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
583 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
584 case '"':
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
585 buf.append("%22");
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
586 continue;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
587 case '\'':
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
588 buf.append("%27");
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
589 continue;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
590 case '<':
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
591 buf.append("%3C");
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
592 continue;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
593 case '>':
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
594 buf.append("%3E");
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
595 continue;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
596 default:
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
597 buf.append(c);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
598 continue;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
599 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
600 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
601
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
602 return buf.toString();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
603 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
604
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
605 private static String deTag(String raw)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
606 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
607 return StringUtil.replace( StringUtil.replace(raw,"<","&lt;"), ">", "&gt;");
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
608 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
609
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
610 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
611 /**
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
612 * @param out
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
613 * @param start First byte to write
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
614 * @param count Bytes to write or -1 for all of them.
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
615 */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
616 public void writeTo(OutputStream out,long start,long count)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
617 throws IOException
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
618 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
619 InputStream in = getInputStream();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
620 try
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
621 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
622 in.skip(start);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
623 if (count<0)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
624 IO.copy(in,out);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
625 else
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
626 IO.copy(in,out,count);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
627 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
628 finally
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
629 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
630 in.close();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
631 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
632 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
633
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
634 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
635 public void copyTo(File destination)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
636 throws IOException
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
637 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
638 if (destination.exists())
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
639 throw new IllegalArgumentException(destination+" exists");
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
640 writeTo(new FileOutputStream(destination),0,-1);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
641 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
642
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
643 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
644 public String getWeakETag()
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
645 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
646 try
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
647 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
648 StringBuilder b = new StringBuilder(32);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
649 b.append("W/\"");
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
650
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
651 String name=getName();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
652 int length=name.length();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
653 long lhash=0;
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
654 for (int i=0; i<length;i++)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
655 lhash=31*lhash+name.charAt(i);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
656
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
657 B64Code.encode(lastModified()^lhash,b);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
658 B64Code.encode(length()^lhash,b);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
659 b.append('"');
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
660 return b.toString();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
661 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
662 catch (IOException e)
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
663 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
664 throw new RuntimeException(e);
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
665 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
666 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
667
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
668 /* ------------------------------------------------------------ */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
669 /** Generate a properly encoded URL from a {@link File} instance.
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
670 * @param file Target file.
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
671 * @return URL of the target file.
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
672 * @throws MalformedURLException
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
673 */
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
674 public static URL toURL(File file) throws MalformedURLException
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
675 {
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
676 return file.toURI().toURL();
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
677 }
3428c60d7cfc replace jetty jars with source
Franklin Schmidt <fschmidt@gmail.com>
parents:
diff changeset
678 }