Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/utils/FileUtils.java @ 793:2047f318e964

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Added missing vim control comments. gnv-artifacts/trunk@875 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Wed, 31 Mar 2010 10:56:39 +0000
parents c4156275c1e1
children 2cea76f1112e
rev   line source
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1 package de.intevation.gnv.utils;
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2
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3 import java.io.BufferedInputStream;
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4 import java.io.File;
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5 import java.io.FileInputStream;
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6 import java.io.IOException;
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7 import java.io.InputStream;
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8 import java.io.OutputStream;
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9
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10 import java.util.Stack;
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11
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12 import java.util.zip.ZipEntry;
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13 import java.util.zip.ZipOutputStream;
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14
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15 /**
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16 * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a>
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17 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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18 */
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19 public final class FileUtils
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20 {
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21 private FileUtils() {
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22 }
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23
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24 public final static void deleteContent(File dir) {
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25 if (dir == null || !dir.isDirectory()) {
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26 return;
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27 }
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28
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29 File[] files = dir.listFiles();
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30 if (files != null) {
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31 for (File file: files) {
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32 deleteRecursive(file);
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33 }
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34 }
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35
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36 return;
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37 }
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38
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39 public final static boolean deleteRecursive(File file) {
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40
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41 if (file == null) {
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42 return false;
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43 }
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44
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45 if (file.isDirectory()) {
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46 File [] files = file.listFiles();
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47 if (files != null) {
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48 for (File sub: files) {
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49 if (!deleteRecursive(sub)) {
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50 return false;
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51 }
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52 }
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53 }
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54 }
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55
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56 return file.delete();
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57 }
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58
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59 public static void createZipArchive(
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60 File file,
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61 OutputStream outputStream
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62 )
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63 throws IOException
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64 {
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65 ZipOutputStream out = new ZipOutputStream(outputStream);
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66
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67 if (file.isFile()) {
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68 copyFileToZip("", file, out);
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69 }
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70 else if (file.isDirectory()) {
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71
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72 Stack<PrefixDir> stack = new Stack<PrefixDir>();
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73 stack.push(new PrefixDir(file.getName() + "/", file));
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74
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75 while (!stack.isEmpty()) {
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76 PrefixDir pd = stack.pop();
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78 ZipEntry dirEntry = new ZipEntry(pd.prefix);
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79 out.putNextEntry(dirEntry);
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80 out.closeEntry();
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81
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82 File [] files = pd.dir.listFiles();
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83 if (files != null) {
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84 for (File sub: files) {
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85 if (sub.isDirectory()) {
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86 stack.push(new PrefixDir(
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87 pd.prefix + sub.getName() + "/",
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88 sub));
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89 }
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90 else if (sub.isFile()) {
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91 copyFileToZip(pd.prefix, sub, out);
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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 }
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98 out.finish();
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99 }
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101 private static final class PrefixDir {
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102
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103 String prefix;
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104 File dir;
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105
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106 public PrefixDir(String prefix, File dir) {
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107 this.prefix = prefix;
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108 this.dir = dir;
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109 }
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111 } // class PrefixDir
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112
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113 private static void copyFileToZip(
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114 String prefix,
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115 File file,
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116 ZipOutputStream out
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117 )
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118 throws IOException
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119 {
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120 String entryName = prefix + file.getName();
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121 ZipEntry entry = new ZipEntry(entryName);
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122 out.putNextEntry(entry);
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123 InputStream in = null;
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124 try {
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125 in =
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126 new BufferedInputStream(
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127 new FileInputStream(file), 20*1024);
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128
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129 byte [] buf = new byte[2048];
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130
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131 int r;
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132 while ((r = in.read(buf)) > 0) {
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133 out.write(buf, 0, r);
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134 }
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135 }
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136 finally {
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137 if (in != null) {
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138 try { in.close(); }
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139 catch (IOException ioe) {}
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140 }
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141 }
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142 out.closeEntry();
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143 }
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144 }
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145 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org