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annotate artifacts-common/src/main/java/de/intevation/artifacts/common/utils/FileTools.java @ 364:0723859f776f

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Added new FileTools functions to copy files and directories. artifacts/trunk@3627 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Mon, 09 Jan 2012 10:44:43 +0000
parents 666417d5781c
children c489256a188b
rev   line source
329
666417d5781c Inserted a new utility class FileTools to work with files.
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1 /*
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2 * Copyright (c) 2010, 2011 by Intevation GmbH
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3 *
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4 * This program is free software under the LGPL (>=v2.1)
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5 * Read the file LGPL.txt coming with the software for details
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6 * or visit http://www.gnu.org/licenses/ if it does not exist.
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7 */
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8 package de.intevation.artifacts.common.utils;
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9
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10 import java.io.BufferedInputStream;
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11 import java.io.File;
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12 import java.io.IOException;
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13 import java.io.InputStream;
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14 import java.io.FileInputStream;
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15 import java.io.FileOutputStream;
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16 import java.io.OutputStream;
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17 import java.nio.channels.FileChannel;
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18
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19 import java.util.Stack;
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20 import java.util.List;
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21 import java.util.Set;
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22 import java.util.HashSet;
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23 import java.util.ArrayList;
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24 import java.util.zip.ZipEntry;
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25 import java.util.zip.ZipOutputStream;
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26
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27 import org.apache.log4j.Logger;
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28
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29 import java.security.MessageDigest;
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30 import java.security.NoSuchAlgorithmException;
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31
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32 public class FileTools
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33 {
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34 private static Logger log = Logger.getLogger(FileTools.class);
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35
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36 public static final String DIGEST =
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37 System.getProperty("artifacts.common.file.cmp.digest", "MD5");
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38
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39 private FileTools() {
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40 }
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41
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42
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43 public static File getDirectory(String path, String name) {
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44 if (path == null || name == null) {
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45 return null;
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46 }
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47
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48 File dir = new File(path, name);
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49
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50 if (!dir.exists()) {
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51 log.debug(
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52 "Directory '" + dir.getAbsolutePath() + "' doesn't " +
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53 "exist. Try to create it.");
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54
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55 return dir.mkdir() ? dir : null;
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56 }
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57 else {
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58 return dir.isDirectory() ? dir : null;
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59 }
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60 }
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61
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62 public static File repair(File file) {
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63 file = file.getAbsoluteFile();
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64 if (file.exists()) {
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65 return file;
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66 }
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67 Stack<String> parts = new Stack<String>();
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68 File curr = file;
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69 while (curr != null) {
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70 String name = curr.getName();
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71 if (name.length() > 0) {
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72 parts.push(curr.getName());
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73 }
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74 curr = curr.getParentFile();
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75 }
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76
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77 curr = null;
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78 OUTER: while (!parts.isEmpty()) {
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79 String f = parts.pop();
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80 log.debug("fixing: '" + f + "'");
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81 if (curr == null) {
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82 // XXX: Not totaly correct because there
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83 // more than one root on none unix systems.
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84 for (File root: File.listRoots()) {
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85 File [] files = root.listFiles();
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86 if (files == null) {
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87 log.warn("cannot list '" + root);
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88 continue;
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89 }
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90 for (File candidate: files) {
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91 if (candidate.getName().equalsIgnoreCase(f)) {
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92 curr = new File(root, candidate.getName());
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93 continue OUTER;
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94 }
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95 }
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96 }
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97 break;
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98 }
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99 else {
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100 File [] files = curr.listFiles();
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101 if (files == null) {
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102 log.warn("cannot list: '" + curr + "'");
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103 return file;
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104 }
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105 for (File candidate: files) {
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106 if (candidate.getName().equalsIgnoreCase(f)) {
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107 curr = new File(curr, candidate.getName());
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108 continue OUTER;
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109 }
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110 }
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111 curr = null;
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112 break;
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113 }
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114 }
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115
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116 if (curr == null) {
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117 log.warn("cannot repair path '" + file + "'");
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118 return file;
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119 }
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120
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121 return curr;
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122 }
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123
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124 public static class HashedFile
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125 implements Comparable<HashedFile>
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126 {
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127 protected File file;
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128 protected long length;
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129 protected byte [] hash;
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130
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131 public HashedFile(File file) {
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132 this.file = file;
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133 length = file.length();
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134 }
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135
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136 public File getFile() {
666417d5781c Inserted a new utility class FileTools to work with files.
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137 return file;
666417d5781c Inserted a new utility class FileTools to work with files.
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138 }
666417d5781c Inserted a new utility class FileTools to work with files.
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139
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140 protected byte [] getHash() {
666417d5781c Inserted a new utility class FileTools to work with files.
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141 if (hash == null) {
666417d5781c Inserted a new utility class FileTools to work with files.
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142 InputStream in = null;
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143
666417d5781c Inserted a new utility class FileTools to work with files.
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144 try {
666417d5781c Inserted a new utility class FileTools to work with files.
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145 in = new FileInputStream(file);
666417d5781c Inserted a new utility class FileTools to work with files.
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146
666417d5781c Inserted a new utility class FileTools to work with files.
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147 MessageDigest digest = MessageDigest.getInstance(DIGEST);
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148
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149 byte [] buf = new byte[40*1024];
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150 int r;
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151
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diff changeset
152 while ((r = in.read(buf)) >= 0) {
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153 digest.update(buf, 0, r);
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154 }
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155
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156 hash = digest.digest();
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157 }
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158 catch (IOException ioe) {
666417d5781c Inserted a new utility class FileTools to work with files.
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159 log.error(ioe);
666417d5781c Inserted a new utility class FileTools to work with files.
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160 hash = new byte[0];
666417d5781c Inserted a new utility class FileTools to work with files.
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161 }
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162 catch (NoSuchAlgorithmException nsae) {
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163 log.error(nsae);
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164 hash = new byte[0];
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165 }
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166 finally {
666417d5781c Inserted a new utility class FileTools to work with files.
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167 if (in != null) {
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168 try {
666417d5781c Inserted a new utility class FileTools to work with files.
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169 in.close();
666417d5781c Inserted a new utility class FileTools to work with files.
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170 }
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171 catch (IOException ioe) {
666417d5781c Inserted a new utility class FileTools to work with files.
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172 log.error(ioe);
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173 }
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174 }
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175 }
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176 }
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177 return hash;
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178 }
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179
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180 @Override
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181 public int compareTo(HashedFile other) {
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182 if (length < other.length) return -1;
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183 if (length > other.length) return +1;
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184 return compare(getHash(), other.getHash());
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185 }
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186
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187 private static int compare(byte [] a, byte [] b) {
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188 if (a.length < b.length) return -1;
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189 if (a.length > b.length) return +1;
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190 for (int i = 0; i < a.length; ++i) {
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191 int x = a[i] & 0xff;
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192 int y = b[i] & 0xff;
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193 if (x < y) return -1;
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194 if (x > y) return +1;
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195 }
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196 return 0;
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197 }
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198
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199 @Override
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200 public boolean equals(Object other) {
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201 return other instanceof HashedFile
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202 && ((HashedFile)other).compareTo(this) == 0;
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203 }
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204
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205 @Override
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206 public int hashCode() {
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207 return (int)(length ^ (length >>> 32));
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208 }
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209 } // class HashedFile
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210
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diff changeset
211 public static List<File> uniqueFiles(List<File> files) {
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212
666417d5781c Inserted a new utility class FileTools to work with files.
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213 Set<HashedFile> set = new HashSet<HashedFile>();
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214
666417d5781c Inserted a new utility class FileTools to work with files.
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215 for (File file: files) {
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
216 if (!set.add(new HashedFile(file))) {
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
217 log.warn("file '" + file + "' is a duplicate.");
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218 }
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diff changeset
219 }
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diff changeset
220
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diff changeset
221 ArrayList<File> out = new ArrayList<File>(set.size());
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diff changeset
222 for (HashedFile hf: set) {
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diff changeset
223 out.add(hf.file);
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diff changeset
224 }
666417d5781c Inserted a new utility class FileTools to work with files.
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225
666417d5781c Inserted a new utility class FileTools to work with files.
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226 return out;
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227 }
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228
666417d5781c Inserted a new utility class FileTools to work with files.
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229 public interface FileVisitor {
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230 boolean visit(File file);
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231 } // Visitor
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232
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233 public static void walkTree(File root, FileVisitor visitor) {
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234
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
235 Stack<File> stack = new Stack<File>();
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236
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
237 stack.push(root);
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
238
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
239 while (!stack.isEmpty()) {
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
240 File current = stack.pop();
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
241 if (!visitor.visit(current)) break;
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
242 if (current.isDirectory()) {
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
243 File [] subs = current.listFiles();
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
244 if (subs != null) {
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
245 for (File f: subs) {
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
246 stack.push(f);
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
247 }
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
248 }
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
249 }
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
250 }
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
251 }
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
252
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
253 /**
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254 * Deletes everything in a directory.
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diff changeset
255 *
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256 * @param dir The directory.
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257 */
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diff changeset
258 public final static void deleteContent(File dir) {
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diff changeset
259 if (dir == null || !dir.isDirectory()) {
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diff changeset
260 return;
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
261 }
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
262
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
263 File[] files = dir.listFiles();
666417d5781c Inserted a new utility class FileTools to work with files.
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parents:
diff changeset
264 if (files != null) {
666417d5781c Inserted a new utility class FileTools to work with files.
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parents:
diff changeset
265 for (File file: files) {
666417d5781c Inserted a new utility class FileTools to work with files.
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parents:
diff changeset
266 deleteRecursive(file);
666417d5781c Inserted a new utility class FileTools to work with files.
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267 }
666417d5781c Inserted a new utility class FileTools to work with files.
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268 }
666417d5781c Inserted a new utility class FileTools to work with files.
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269
666417d5781c Inserted a new utility class FileTools to work with files.
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270 return;
666417d5781c Inserted a new utility class FileTools to work with files.
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271 }
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272
666417d5781c Inserted a new utility class FileTools to work with files.
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273 /**
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274 * Delete <i>file</i> and everything in <i>file</i> if it is a directory.
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275 *
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276 * @param file The file or directory.
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277 * @return true, if deletion was successful - otherwise false.
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278 */
666417d5781c Inserted a new utility class FileTools to work with files.
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279 public final static boolean deleteRecursive(File file) {
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280
666417d5781c Inserted a new utility class FileTools to work with files.
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281 if (file == null) {
666417d5781c Inserted a new utility class FileTools to work with files.
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282 return false;
666417d5781c Inserted a new utility class FileTools to work with files.
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283 }
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284
666417d5781c Inserted a new utility class FileTools to work with files.
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285 if (file.isDirectory()) {
666417d5781c Inserted a new utility class FileTools to work with files.
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286 File [] files = file.listFiles();
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287 if (files != null) {
666417d5781c Inserted a new utility class FileTools to work with files.
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288 for (File sub: files) {
666417d5781c Inserted a new utility class FileTools to work with files.
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289 if (!deleteRecursive(sub)) {
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290 return false;
666417d5781c Inserted a new utility class FileTools to work with files.
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291 }
666417d5781c Inserted a new utility class FileTools to work with files.
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292 }
666417d5781c Inserted a new utility class FileTools to work with files.
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293 }
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294 }
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295
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296 return file.delete();
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297 }
666417d5781c Inserted a new utility class FileTools to work with files.
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298
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299 /**
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300 * Put the given file or directory into a zip archive.
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301 *
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302 * @param file The file or directory.
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303 * @param outputStream The stream to write the archive to.
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304 * @throws IOException if an error occured while zip creation or writing to
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305 * output stream.
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306 */
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307 public static void createZipArchive(
666417d5781c Inserted a new utility class FileTools to work with files.
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308 File file,
666417d5781c Inserted a new utility class FileTools to work with files.
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309 OutputStream outputStream
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310 )
666417d5781c Inserted a new utility class FileTools to work with files.
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311 throws IOException
666417d5781c Inserted a new utility class FileTools to work with files.
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312 {
666417d5781c Inserted a new utility class FileTools to work with files.
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313 ZipOutputStream out = new ZipOutputStream(outputStream);
666417d5781c Inserted a new utility class FileTools to work with files.
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314
666417d5781c Inserted a new utility class FileTools to work with files.
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315 if (file.isFile()) {
666417d5781c Inserted a new utility class FileTools to work with files.
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316 copyFileToZip("", file, out);
666417d5781c Inserted a new utility class FileTools to work with files.
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317 }
666417d5781c Inserted a new utility class FileTools to work with files.
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318 else if (file.isDirectory()) {
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319
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320 Stack<PrefixDir> stack = new Stack<PrefixDir>();
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321 stack.push(new PrefixDir(file.getName() + "/", file));
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322
666417d5781c Inserted a new utility class FileTools to work with files.
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323 while (!stack.isEmpty()) {
666417d5781c Inserted a new utility class FileTools to work with files.
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324 PrefixDir pd = stack.pop();
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
325
666417d5781c Inserted a new utility class FileTools to work with files.
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326 ZipEntry dirEntry = new ZipEntry(pd.prefix);
666417d5781c Inserted a new utility class FileTools to work with files.
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327 out.putNextEntry(dirEntry);
666417d5781c Inserted a new utility class FileTools to work with files.
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328 out.closeEntry();
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
329
666417d5781c Inserted a new utility class FileTools to work with files.
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330 File [] files = pd.dir.listFiles();
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diff changeset
331 if (files != null) {
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
332 for (File sub: files) {
666417d5781c Inserted a new utility class FileTools to work with files.
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parents:
diff changeset
333 if (sub.isDirectory()) {
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
334 stack.push(new PrefixDir(
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
335 pd.prefix + sub.getName() + "/",
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
336 sub));
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
337 }
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
338 else if (sub.isFile()) {
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
339 copyFileToZip(pd.prefix, sub, out);
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
340 }
666417d5781c Inserted a new utility class FileTools to work with files.
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parents:
diff changeset
341 }
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
342 }
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
343 }
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
344 }
666417d5781c Inserted a new utility class FileTools to work with files.
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345
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
346 out.finish();
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
347 }
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
348
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
349 /**
666417d5781c Inserted a new utility class FileTools to work with files.
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350 * A class representing a directory with a prefix.
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
351 */
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
352 private static final class PrefixDir {
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
353
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
354 String prefix;
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
355 File dir;
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
356
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
357 public PrefixDir(String prefix, File dir) {
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
358 this.prefix = prefix;
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
359 this.dir = dir;
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
360 }
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
361
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
362 } // class PrefixDir
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
363
666417d5781c Inserted a new utility class FileTools to work with files.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
364 /**
666417d5781c Inserted a new utility class FileTools to work with files.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
365 * Write a file to zip archive.
666417d5781c Inserted a new utility class FileTools to work with files.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
366 *
666417d5781c Inserted a new utility class FileTools to work with files.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
367 * @param prefix A prefix.
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
368 * @param file The file.
666417d5781c Inserted a new utility class FileTools to work with files.
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diff changeset
369 * @param out The output stream.
666417d5781c Inserted a new utility class FileTools to work with files.
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parents:
diff changeset
370 * @throws IOException if an error occured while writing to zip output
666417d5781c Inserted a new utility class FileTools to work with files.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
371 * stream.
666417d5781c Inserted a new utility class FileTools to work with files.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
372 */
666417d5781c Inserted a new utility class FileTools to work with files.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
373 private static void copyFileToZip(
666417d5781c Inserted a new utility class FileTools to work with files.
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parents:
diff changeset
374 String prefix,
666417d5781c Inserted a new utility class FileTools to work with files.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
375 File file,
666417d5781c Inserted a new utility class FileTools to work with files.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
376 ZipOutputStream out
666417d5781c Inserted a new utility class FileTools to work with files.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
377 )
666417d5781c Inserted a new utility class FileTools to work with files.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
378 throws IOException
666417d5781c Inserted a new utility class FileTools to work with files.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
379 {
666417d5781c Inserted a new utility class FileTools to work with files.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
380 String entryName = prefix + file.getName();
666417d5781c Inserted a new utility class FileTools to work with files.
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parents:
diff changeset
381 ZipEntry entry = new ZipEntry(entryName);
666417d5781c Inserted a new utility class FileTools to work with files.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
382 out.putNextEntry(entry);
666417d5781c Inserted a new utility class FileTools to work with files.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
383 InputStream in = null;
666417d5781c Inserted a new utility class FileTools to work with files.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
384 try {
666417d5781c Inserted a new utility class FileTools to work with files.
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parents:
diff changeset
385 in =
666417d5781c Inserted a new utility class FileTools to work with files.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
386 new BufferedInputStream(
666417d5781c Inserted a new utility class FileTools to work with files.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
387 new FileInputStream(file), 20*1024);
666417d5781c Inserted a new utility class FileTools to work with files.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
388
666417d5781c Inserted a new utility class FileTools to work with files.
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parents:
diff changeset
389 byte [] buf = new byte[2048];
666417d5781c Inserted a new utility class FileTools to work with files.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
390
666417d5781c Inserted a new utility class FileTools to work with files.
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parents:
diff changeset
391 int r;
666417d5781c Inserted a new utility class FileTools to work with files.
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parents:
diff changeset
392 while ((r = in.read(buf)) > 0) {
666417d5781c Inserted a new utility class FileTools to work with files.
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parents:
diff changeset
393 out.write(buf, 0, r);
666417d5781c Inserted a new utility class FileTools to work with files.
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parents:
diff changeset
394 }
666417d5781c Inserted a new utility class FileTools to work with files.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
395 }
666417d5781c Inserted a new utility class FileTools to work with files.
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parents:
diff changeset
396 finally {
666417d5781c Inserted a new utility class FileTools to work with files.
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parents:
diff changeset
397 if (in != null) {
666417d5781c Inserted a new utility class FileTools to work with files.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
398 try { in.close(); }
666417d5781c Inserted a new utility class FileTools to work with files.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
399 catch (IOException ioe) {}
666417d5781c Inserted a new utility class FileTools to work with files.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
400 }
666417d5781c Inserted a new utility class FileTools to work with files.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
401 }
666417d5781c Inserted a new utility class FileTools to work with files.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
402 out.closeEntry();
666417d5781c Inserted a new utility class FileTools to work with files.
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parents:
diff changeset
403 }
364
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diff changeset
404
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
405
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
406 /**
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diff changeset
407 * Copies a <i>src</i> file to <i>target</i>.
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
408 *
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
409 * @param src A file (not a directory) that should be copied.
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diff changeset
410 * @param target The destination. This might be a file or a directory.
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diff changeset
411 *
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
412 * @return true, if <i>src</i> has been successfully copied; otherwise
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
413 * false.
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
414 */
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
415 public static boolean copyFile(File src, File target)
0723859f776f Added new FileTools functions to copy files and directories.
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416 throws IOException
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
417 {
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
418 if (src == null || !src.exists()) {
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
419 log.warn("Source file does not exist!");
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
420 return false;
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
421 }
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
422
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
423 if (!src.canRead()) {
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
424 log.warn("Cannot read Source file!");
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
425 return false;
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
426 }
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
427
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
428 if (src.isDirectory()) {
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
429 log.warn("Source is a directory!");
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
430 return false;
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
431 }
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
432
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
433 if (target.isDirectory()) {
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
434 target = new File(target, src.getName());
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
435 }
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
436
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
437 FileInputStream in = null;
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
438 FileOutputStream out = null;
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
439
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
440 try {
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
441 in = new FileInputStream(src);
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
442 out = new FileOutputStream(target);
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
443
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
444 FileChannel inChannel = in.getChannel();
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
445 FileChannel outChannel = out.getChannel();
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
446
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
447 inChannel.transferTo(0l, inChannel.size(), outChannel);
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
448
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
449 return true;
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
450 }
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
451 catch (IOException ioe) {
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
452 log.warn(ioe, ioe);
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
453 }
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
454 finally {
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
455 if (in != null) {
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
456 try {
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
457 in.close();
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
458 }
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
459 catch (IOException ioe) { /* do nothing here */ }
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
460 }
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
461
0723859f776f Added new FileTools functions to copy files and directories.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
462 if (out != null) {
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
463 try {
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
464 out.close();
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
465 }
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
466 catch (IOException ioe) { /* do nothing here */ }
0723859f776f Added new FileTools functions to copy files and directories.
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parents: 329
diff changeset
467 }
0723859f776f Added new FileTools functions to copy files and directories.
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parents: 329
diff changeset
468 }
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
469
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
470 return false;
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
471 }
0723859f776f Added new FileTools functions to copy files and directories.
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parents: 329
diff changeset
472
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
473
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
474 /**
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
475 * Copies a directory <i>source</i> to a destination path <i>dest</i>.
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
476 *
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
477 * @param source A directory that should be copied.
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diff changeset
478 * @param dest A destination directory which is created if it is not
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
479 * existing yet.
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
480 *
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
481 * @return true, if the directory has been successfully copied; otherwise
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
482 * false.
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
483 */
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
484 public static boolean copyDirectory(final File source, final File dest) {
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
485 if (source == null || !source.exists()) {
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
486 log.warn("Source directory does not exist!");
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
487 return false;
0723859f776f Added new FileTools functions to copy files and directories.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
488 }
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
489
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
490 if (!source.isDirectory()) {
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
491 log.warn("Source is not a directory!");
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
492 return false;
0723859f776f Added new FileTools functions to copy files and directories.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 329
diff changeset
493 }
0723859f776f Added new FileTools functions to copy files and directories.
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parents: 329
diff changeset
494
0723859f776f Added new FileTools functions to copy files and directories.
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parents: 329
diff changeset
495 if (dest == null) {
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
496 log.warn("Destination directory is null!");
0723859f776f Added new FileTools functions to copy files and directories.
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parents: 329
diff changeset
497 return false;
0723859f776f Added new FileTools functions to copy files and directories.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 329
diff changeset
498 }
0723859f776f Added new FileTools functions to copy files and directories.
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parents: 329
diff changeset
499
0723859f776f Added new FileTools functions to copy files and directories.
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parents: 329
diff changeset
500 if (!dest.exists()) {
0723859f776f Added new FileTools functions to copy files and directories.
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parents: 329
diff changeset
501 if (!dest.mkdir()) {
0723859f776f Added new FileTools functions to copy files and directories.
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parents: 329
diff changeset
502 log.warn("Cannot create destination directory!");
0723859f776f Added new FileTools functions to copy files and directories.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 329
diff changeset
503 return false;
0723859f776f Added new FileTools functions to copy files and directories.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 329
diff changeset
504 }
0723859f776f Added new FileTools functions to copy files and directories.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 329
diff changeset
505 }
0723859f776f Added new FileTools functions to copy files and directories.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 329
diff changeset
506
0723859f776f Added new FileTools functions to copy files and directories.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
507 File[] children = source.listFiles();
0723859f776f Added new FileTools functions to copy files and directories.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
508 int failed = 0;
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
509
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
510 if (children != null && children.length > 0) {
0723859f776f Added new FileTools functions to copy files and directories.
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diff changeset
511 for (File child: children) {
0723859f776f Added new FileTools functions to copy files and directories.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
512 if (child.isFile()) {
0723859f776f Added new FileTools functions to copy files and directories.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
513 try {
0723859f776f Added new FileTools functions to copy files and directories.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 329
diff changeset
514 if (!copyFile(child, dest)) {
0723859f776f Added new FileTools functions to copy files and directories.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 329
diff changeset
515 failed++;
0723859f776f Added new FileTools functions to copy files and directories.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 329
diff changeset
516 }
0723859f776f Added new FileTools functions to copy files and directories.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 329
diff changeset
517 }
0723859f776f Added new FileTools functions to copy files and directories.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
518 catch (IOException ioe) {
0723859f776f Added new FileTools functions to copy files and directories.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
519 log.warn(ioe, ioe);
0723859f776f Added new FileTools functions to copy files and directories.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
520 failed++;
0723859f776f Added new FileTools functions to copy files and directories.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 329
diff changeset
521 }
0723859f776f Added new FileTools functions to copy files and directories.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 329
diff changeset
522 }
0723859f776f Added new FileTools functions to copy files and directories.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 329
diff changeset
523 else if (child.isDirectory()) {
0723859f776f Added new FileTools functions to copy files and directories.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 329
diff changeset
524 copyDirectory(child, new File(dest, child.getName()));
0723859f776f Added new FileTools functions to copy files and directories.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 329
diff changeset
525 }
0723859f776f Added new FileTools functions to copy files and directories.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 329
diff changeset
526 }
0723859f776f Added new FileTools functions to copy files and directories.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 329
diff changeset
527 }
0723859f776f Added new FileTools functions to copy files and directories.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 329
diff changeset
528
0723859f776f Added new FileTools functions to copy files and directories.
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parents: 329
diff changeset
529 log.debug("Failed to copy " + failed + " files.");
0723859f776f Added new FileTools functions to copy files and directories.
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parents: 329
diff changeset
530
0723859f776f Added new FileTools functions to copy files and directories.
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parents: 329
diff changeset
531 return true;
0723859f776f Added new FileTools functions to copy files and directories.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 329
diff changeset
532 }
329
666417d5781c Inserted a new utility class FileTools to work with files.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
533 }
666417d5781c Inserted a new utility class FileTools to work with files.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
534 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org