root / branches / v2_0_0_prep / frameworks / _fwAndami / src / org / gvsig / andami / Utilities.java @ 38608
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1 | 1104 | fjp | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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2 | *
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3 | 11996 | cesar | * Copyright (C) 2004-2007 IVER T.I. and Generalitat Valenciana.
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4 | 1104 | fjp | *
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5 | * This program is free software; you can redistribute it and/or
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6 | * modify it under the terms of the GNU General Public License
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7 | * as published by the Free Software Foundation; either version 2
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8 | * of the License, or (at your option) any later version.
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9 | *
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10 | * This program is distributed in the hope that it will be useful,
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11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 | * GNU General Public License for more details.
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14 | *
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15 | * You should have received a copy of the GNU General Public License
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16 | * along with this program; if not, write to the Free Software
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17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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18 | *
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19 | * For more information, contact:
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20 | *
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21 | * Generalitat Valenciana
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22 | * Conselleria d'Infraestructures i Transport
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23 | * Av. Blasco Ib??ez, 50
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24 | * 46010 VALENCIA
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25 | * SPAIN
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26 | *
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27 | * +34 963862235
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28 | * gvsig@gva.es
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29 | * www.gvsig.gva.es
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30 | *
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31 | * or
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32 | *
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33 | * IVER T.I. S.A
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34 | * Salamanca 50
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35 | * 46005 Valencia
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36 | * Spain
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37 | *
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38 | * +34 963163400
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39 | * dac@iver.es
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40 | */
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41 | 29593 | jpiera | package org.gvsig.andami; |
42 | 598 | fernando | |
43 | import java.awt.Component; |
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44 | import java.awt.Container; |
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45 | import java.io.BufferedInputStream; |
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46 | import java.io.BufferedOutputStream; |
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47 | 3706 | jaume | import java.io.DataOutputStream; |
48 | 598 | fernando | import java.io.File; |
49 | import java.io.FileOutputStream; |
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50 | import java.io.IOException; |
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51 | import java.io.InputStream; |
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52 | import java.io.OutputStream; |
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53 | 3706 | jaume | import java.net.ConnectException; |
54 | 598 | fernando | import java.net.MalformedURLException; |
55 | import java.net.URL; |
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56 | 3706 | jaume | import java.net.UnknownHostException; |
57 | 598 | fernando | import java.util.Enumeration; |
58 | 3706 | jaume | import java.util.Hashtable; |
59 | 598 | fernando | import java.util.zip.ZipEntry; |
60 | import java.util.zip.ZipException; |
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61 | import java.util.zip.ZipFile; |
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62 | |||
63 | import javax.swing.ImageIcon; |
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64 | import javax.swing.RootPaneContainer; |
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65 | |||
66 | 29593 | jpiera | import org.gvsig.andami.ui.mdiManager.IWindow; |
67 | import org.gvsig.andami.ui.splash.MultiSplashWindow; |
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68 | 27139 | csanchez | import org.slf4j.Logger; |
69 | import org.slf4j.LoggerFactory; |
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70 | 598 | fernando | |
71 | |||
72 | |||
73 | |||
74 | /**
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75 | 11996 | cesar | * This class offers several general purpose method, to perform common
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76 | * tasks in an easy way.
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77 | 598 | fernando | *
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78 | * @version $Revision$
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79 | */
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80 | public class Utilities { |
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81 | 3706 | jaume | /**
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82 | * <b>key</b>: URL, <b>value</b>: path to the downloaded file.
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83 | */
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84 | private static Hashtable downloadedFiles; |
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85 | 598 | fernando | /** DOCUMENT ME! */
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86 | 27139 | csanchez | private static Logger logger = LoggerFactory.getLogger(Utilities.class.getName()); |
87 | 8906 | caballero | public static final String TEMPDIRECTORYPATH = System.getProperty("java.io.tmpdir")+"/tmp-andami"; |
88 | 598 | fernando | |
89 | 7303 | caballero | |
90 | 598 | fernando | /**
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91 | 11996 | cesar | * Creates an icon from an image path.
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92 | 598 | fernando | *
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93 | 11996 | cesar | * @param path Path to the image to be loaded
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94 | 598 | fernando | *
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95 | 11996 | cesar | * @return ImageIcon if the image is found, null otherwise
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96 | 598 | fernando | */
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97 | public static ImageIcon createImageIcon(String path) { |
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98 | URL imgURL = null; |
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99 | |||
100 | try {
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101 | imgURL = new URL("file:" + path); |
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102 | } catch (MalformedURLException e) { |
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103 | e.printStackTrace(); |
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104 | } |
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105 | |||
106 | if (imgURL != null) { |
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107 | return new ImageIcon(imgURL); |
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108 | } else {
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109 | return null; |
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110 | } |
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111 | } |
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112 | |||
113 | /**
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114 | 11996 | cesar | * Method which frees the memory from JInternalFrames
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115 | 598 | fernando | *
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116 | 11996 | cesar | * @param baseComponent JInternalFrame whose memory is to be
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117 | * freed
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118 | 598 | fernando | */
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119 | public static void cleanComponent(Component baseComponent) { |
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120 | try {
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121 | cleanComponent(baseComponent, 0);
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122 | 7303 | caballero | } catch (Exception ignore) { // give some exception handling... |
123 | 598 | fernando | } |
124 | } |
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125 | |||
126 | /* * The "depth" parameter was being used for text output debugging. * But isn't essential now. I'll keep it anyways, as it avoids * calling the garbage collector every recursion. */
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127 | protected static void cleanComponent(Component baseComponent, int depth) { |
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128 | 7303 | caballero | if (baseComponent == null) // recursion terminating clause |
129 | 598 | fernando | { |
130 | return;
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131 | } |
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132 | 7303 | caballero | |
133 | 6877 | cesar | if (baseComponent instanceof IWindow){ |
134 | 901 | fernando | return;
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135 | } |
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136 | 598 | fernando | |
137 | Container cont;
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138 | Component[] childComponents; |
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139 | int numChildren; // clean up component containers |
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140 | |||
141 | 7303 | caballero | if (baseComponent instanceof Container) { // now clean up container instance variables |
142 | 598 | fernando | |
143 | 7303 | caballero | if (baseComponent instanceof RootPaneContainer) { // Swing specialised container |
144 | 598 | fernando | cont = (Container) baseComponent;
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145 | numChildren = cont.getComponentCount(); |
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146 | childComponents = cont.getComponents(); |
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147 | |||
148 | 7303 | caballero | for (int i = 0; i < numChildren; i++) { // remove each component from the current container |
149 | 598 | fernando | |
150 | 7303 | caballero | // each child component may be a container itself
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151 | 598 | fernando | cleanComponent(childComponents[i], depth + 1);
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152 | ((RootPaneContainer) cont).getContentPane().remove(childComponents[i]);
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153 | } |
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154 | |||
155 | ((RootPaneContainer) cont).getContentPane().setLayout(null); |
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156 | 7303 | caballero | } else { // General Swing, and AWT, Containers |
157 | 598 | fernando | cont = (Container) baseComponent;
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158 | numChildren = cont.getComponentCount(); |
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159 | childComponents = cont.getComponents(); |
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160 | |||
161 | 7303 | caballero | for (int i = 0; i < numChildren; i++) //for(int i = 0;i < numChildren;i++) |
162 | 598 | fernando | { |
163 | 7303 | caballero | // remove each component from the current container // each child component may be a container itself
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164 | 598 | fernando | cleanComponent(childComponents[i], depth + 1);
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165 | cont.remove(childComponents[i]); |
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166 | } |
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167 | |||
168 | cont.setLayout(null);
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169 | } |
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170 | } |
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171 | |||
172 | 7303 | caballero | // if component is also a container
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173 | 598 | fernando | } |
174 | |||
175 | 7514 | caballero | |
176 | |||
177 | 598 | fernando | /**
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178 | 11996 | cesar | * Extracts a ZIP file in the provided directory
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179 | 598 | fernando | *
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180 | 11996 | cesar | * @param file Compressed file
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181 | * @param dir Directory to extract the files
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182 | * @param splash The splash window to show the extraction progress
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183 | 598 | fernando | *
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184 | 11996 | cesar | * @throws ZipException If there is some problem in the file format
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185 | * @throws IOException If there is a problem reading the file
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186 | 598 | fernando | */
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187 | 7303 | caballero | public static void extractTo(File file, File dir, MultiSplashWindow splash) |
188 | 598 | fernando | throws ZipException, IOException { |
189 | ZipFile zip = new ZipFile(file); |
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190 | Enumeration e = zip.entries();
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191 | |||
192 | 7514 | caballero | // Pasada para crear las carpetas
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193 | while (e.hasMoreElements()) {
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194 | ZipEntry entry = (ZipEntry) e.nextElement(); |
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195 | 598 | fernando | |
196 | 7514 | caballero | if (entry.isDirectory()) {
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197 | File directorio = new File(dir.getAbsolutePath() |
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198 | + File.separator + entry.getName());
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199 | 598 | fernando | |
200 | 7514 | caballero | directorio.mkdirs(); |
201 | } |
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202 | 598 | fernando | |
203 | 7514 | caballero | } |
204 | 7303 | caballero | |
205 | 7514 | caballero | // Pasada para crear los ficheros
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206 | e = zip.entries(); |
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207 | while (e.hasMoreElements()) {
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208 | ZipEntry entry = (ZipEntry) e.nextElement(); |
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209 | splash.process(30, "Procesando " + entry.getName() + "..."); |
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210 | if (!entry.isDirectory()) {
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211 | InputStream in = zip.getInputStream(entry);
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212 | OutputStream out = new FileOutputStream(dir + File.separator |
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213 | + entry.getName()); |
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214 | BufferedInputStream bin = new BufferedInputStream(in); |
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215 | BufferedOutputStream bout = new BufferedOutputStream(out); |
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216 | |||
217 | int i;
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218 | |||
219 | while ((i = bin.read()) != -1) { |
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220 | bout.write(i); |
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221 | } |
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222 | |||
223 | bout.flush(); |
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224 | bout.close(); |
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225 | bin.close(); |
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226 | |||
227 | } |
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228 | |||
229 | } |
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230 | |||
231 | zip.close(); |
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232 | zip = null;
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233 | System.gc();
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234 | |||
235 | } |
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236 | 3706 | jaume | /**
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237 | * Returns the content of this URL as a file from the file system.<br>
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238 | * <p>
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239 | 7303 | caballero | * If the URL has been already downloaded in this session and notified
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240 | 3706 | jaume | * to the system using the static <b>Utilities.addDownloadedURL(URL)</b>
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241 | * method, it can be restored faster from the file system avoiding to
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242 | * download it again.
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243 | * </p>
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244 | * @param url
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245 | * @return File containing this URL's content or null if no file was found.
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246 | */
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247 | private static File getPreviousDownloadedURL(URL url){ |
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248 | File f = null; |
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249 | if (downloadedFiles!=null && downloadedFiles.containsKey(url)){ |
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250 | String filePath = (String) downloadedFiles.get(url); |
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251 | f = new File(filePath); |
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252 | } |
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253 | return f;
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254 | } |
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255 | 7303 | caballero | |
256 | 3706 | jaume | /**
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257 | * Adds an URL to the table of downloaded files for further uses. If the URL
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258 | * already exists in the table its filePath value is updated to the new one and
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259 | * the old file itself is removed from the file system.
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260 | 7303 | caballero | *
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261 | 3706 | jaume | * @param url
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262 | * @param filePath
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263 | */
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264 | private static void addDownloadedURL(URL url, String filePath){ |
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265 | if (downloadedFiles==null) |
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266 | downloadedFiles = new Hashtable(); |
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267 | String fileName = (String) downloadedFiles.put(url, filePath); |
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268 | 5276 | jmvivo | //JMV: No se puede eliminar el anterior porque puede que alguien lo
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269 | // este usando
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270 | /*
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271 | 3706 | jaume | if (fileName!=null){
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272 | File f = new File(fileName);
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273 | if (f.exists())
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274 | f.delete();
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275 | }
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276 | 5276 | jmvivo | */
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277 | 3706 | jaume | } |
278 | 7303 | caballero | |
279 | 3706 | jaume | /**
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280 | 7303 | caballero | * Downloads an URL into a temporary file that is removed the next time the
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281 | 3706 | jaume | * tempFileManager class is called, which means the next time gvSIG is launched.
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282 | 7303 | caballero | *
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283 | 3706 | jaume | * @param url
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284 | * @param name
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285 | * @return
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286 | * @throws IOException
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287 | * @throws ServerErrorResponseException
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288 | * @throws ConnectException
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289 | * @throws UnknownHostException
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290 | */
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291 | public static File downloadFile(URL url, String name) throws IOException,ConnectException, UnknownHostException{ |
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292 | File f = null; |
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293 | |||
294 | try{
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295 | if ((f=getPreviousDownloadedURL(url))==null){ |
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296 | 8906 | caballero | File tempDirectory = new File(TEMPDIRECTORYPATH); |
297 | 3706 | jaume | if (!tempDirectory.exists())
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298 | tempDirectory.mkdir(); |
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299 | 7303 | caballero | |
300 | 8906 | caballero | f = new File(TEMPDIRECTORYPATH+"/"+name+System.currentTimeMillis()); |
301 | 7303 | caballero | |
302 | 3706 | jaume | System.out.println("downloading '"+url.toString()+"' to: "+f.getAbsolutePath()); |
303 | 7303 | caballero | |
304 | 3706 | jaume | f.deleteOnExit(); |
305 | DataOutputStream dos = new DataOutputStream( new BufferedOutputStream(new FileOutputStream(f))); |
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306 | byte[] buffer = new byte[1024*256]; |
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307 | InputStream is = url.openStream();
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308 | long readed = 0; |
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309 | for (int i = is.read(buffer); i>0; i = is.read(buffer)){ |
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310 | dos.write(buffer, 0, i);
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311 | readed += i; |
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312 | } |
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313 | dos.close(); |
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314 | addDownloadedURL(url, f.getAbsolutePath()); |
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315 | } |
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316 | } catch (IOException io) { |
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317 | io.printStackTrace(); |
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318 | } |
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319 | 7303 | caballero | |
320 | 3706 | jaume | return f;
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321 | } |
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322 | |||
323 | /**
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324 | * Cleans every temporal file previously downloaded.
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325 | */
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326 | public static void cleanUpTempFiles() { |
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327 | try{
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328 | 8906 | caballero | File tempDirectory = new File(TEMPDIRECTORYPATH); |
329 | 7303 | caballero | |
330 | 3706 | jaume | File[] files = tempDirectory.listFiles(); |
331 | if (files!=null) { |
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332 | for (int i = 0; i < files.length; i++) { |
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333 | // s?lo por si en un futuro se necesitan crear directorios temporales
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334 | if (files[i].isDirectory()) deleteDirectory(files[i]);
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335 | files[i].delete(); |
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336 | } |
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337 | } |
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338 | tempDirectory.delete(); |
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339 | } catch (Exception e) { } |
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340 | 7303 | caballero | |
341 | 3706 | jaume | } |
342 | /**
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343 | * Recursive directory delete.
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344 | * @param f
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345 | */
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346 | private static void deleteDirectory(File f) { |
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347 | File[] files = f.listFiles(); |
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348 | for (int i = 0; i < files.length; i++) { |
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349 | if (files[i].isDirectory()) deleteDirectory(files[i]);
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350 | files[i].delete(); |
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351 | } |
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352 | 7303 | caballero | |
353 | 3706 | jaume | } |
354 | 7303 | caballero | |
355 | 4099 | fjp | /**
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356 | 11996 | cesar | * Creates a temporary file with a the provided name and data. The file
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357 | * will be automatically deleted when the application exits.
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358 | *
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359 | * @param fileName Name of the temporary file to create
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360 | * @param data The data to store in the file
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361 | 4099 | fjp | */
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362 | 11996 | cesar | public static File createTemp(String fileName, String data)throws IOException{ |
363 | 4099 | fjp | File f = new File(fileName); |
364 | DataOutputStream dos = new DataOutputStream( new BufferedOutputStream(new FileOutputStream(f)) ); |
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365 | dos.writeBytes(data); |
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366 | dos.close(); |
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367 | f.deleteOnExit(); |
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368 | 11996 | cesar | return f;
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369 | 4099 | fjp | } |
370 | 7303 | caballero | |
371 | 4099 | fjp | /**
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372 | * Remove an URL from the system cache. The file will remain in the file
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373 | * system for further eventual uses.
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374 | * @param request
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375 | */
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376 | public static void removeURL(URL url) { |
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377 | 4428 | jaume | if (downloadedFiles != null && downloadedFiles.containsKey(url)) |
378 | 4424 | jaume | downloadedFiles.remove(url); |
379 | 4099 | fjp | } |
380 | 11335 | nacho | |
381 | /**
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382 | 11996 | cesar | * Creates the directory for temporary files, and returns the path of
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383 | * this directory. If the directory already exists, it just returns
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384 | * its path. Any file or directory created in this special directory
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385 | * will be delete when the application finishes.
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386 | *
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387 | * @return An String containing the full path to the temporary directory
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388 | 11335 | nacho | */
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389 | public static String createTempDirectory(){ |
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390 | File tempDirectory = new File(TEMPDIRECTORYPATH); |
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391 | if (!tempDirectory.exists())
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392 | tempDirectory.mkdir(); |
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393 | return TEMPDIRECTORYPATH;
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394 | } |
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395 | 598 | fernando | } |