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1
17 package org.apache.servicemix.jbi.util;
18
19 import java.io.BufferedInputStream  ;
20 import java.io.BufferedOutputStream ;
21 import java.io.File ;
22 import java.io.FileInputStream ;
23 import java.io.FileOutputStream ;
24 import java.io.IOException ;
25 import java.io.InputStream ;
26 import java.io.OutputStream ;
27 import java.net.URL ;
28 import java.util.Enumeration ;
29 import java.util.zip.ZipEntry ;
30 import java.util.zip.ZipFile ;
31 import java.util.zip.ZipOutputStream ;
32
33
38 public class FileUtil {
39
40
44 private static final int DEFAULT_BUFFER_SIZE = 4096;
45
46
53 public static void moveFile(File src, File targetDirectory) throws IOException {
54 if (!src.renameTo(new File (targetDirectory, src.getName()))){
55 throw new IOException ("Failed to move " + src + " to " + targetDirectory);
56 }
57 }
58
59
66 public static File getDirectoryPath(File parent, String subDirectory) {
67 File result = null;
68 if (parent != null){
69 result = new File (parent, subDirectory);
70 }
71 return result;
72 }
73
74
80 public static boolean buildDirectory(File file) {
81 return file.exists() || file.mkdirs();
82 }
83
84
91 public static void copyInputStream(InputStream in, OutputStream out) throws IOException {
92 byte[] buffer = new byte[DEFAULT_BUFFER_SIZE];
93 int len;
94 while ((len = in.read(buffer)) >= 0) {
95 out.write(buffer, 0, len);
96 }
97 in.close();
98 out.close();
99 }
100
101
109 public static File unpackArchive(File theFile, File targetDir) throws IOException {
110 if (!theFile.exists()) {
111 throw new IOException (theFile.getAbsolutePath() + " does not exist");
112 }
113 if (!buildDirectory(targetDir)) {
114 throw new IOException ("Could not create directory: " + targetDir);
115 }
116 ZipFile zipFile;
117 zipFile = new ZipFile (theFile);
118 for (Enumeration entries = zipFile.entries(); entries.hasMoreElements();) {
119 ZipEntry entry = (ZipEntry ) entries.nextElement();
120 File file = new File (targetDir, File.separator + entry.getName());
121 if (!buildDirectory(file.getParentFile())) {
124 throw new IOException ("Could not create directory: " + file.getParentFile());
125 }
126 if (!entry.isDirectory()) {
127 copyInputStream(zipFile.getInputStream(entry), new BufferedOutputStream (new FileOutputStream (file)));
128 } else {
129 if (!buildDirectory(file)) {
130 throw new IOException ("Could not create directory: " + file);
131 }
132 }
133 }
134 zipFile.close();
135 return theFile;
136 }
137
138
146 public static File unpackArchive(URL url, File targetDir) throws IOException {
147 if (!targetDir.exists()) {
148 targetDir.mkdirs();
149 }
150 InputStream in = new BufferedInputStream (url.openStream(), DEFAULT_BUFFER_SIZE);
151 File zip = File.createTempFile("arc", ".zip", targetDir);
153 OutputStream out = new BufferedOutputStream (new FileOutputStream (zip));
154 copyInputStream(in, out);
155 out.close();
156 return unpackArchive(zip, targetDir);
157 }
158
159
167 public static boolean archiveContainsEntry(File theFile, String name) throws IOException {
168 boolean result = false;
169 ZipFile zipFile;
170 zipFile = new ZipFile (theFile);
171 for (Enumeration entries = zipFile.entries(); entries.hasMoreElements();) {
172 ZipEntry entry = (ZipEntry ) entries.nextElement();
173 if (entry.getName().equals(name)) {
174 result = true;
175 break;
176 }
177 }
178 zipFile.close();
179 return result;
180 }
181
182
190 public synchronized static File createUniqueDirectory(File rootDir, String seed) throws IOException {
191 int index = seed.lastIndexOf('.');
192 if (index > 0) {
193 seed = seed.substring(0, index);
194 }
195 File result = null;
196 int count = 0;
197 while (result == null) {
198 String name = seed + "." + count + ".tmp";
199 File file = new File (rootDir, name);
200 if (!file.exists()) {
201 file.mkdirs();
202 result = file;
203 }
204 count++;
205 }
206 return result;
207 }
208
209
215 public static boolean deleteFile(File fileToDelete) {
216 boolean result = true;
217 if (fileToDelete != null && fileToDelete.exists()) {
218 if (fileToDelete.isDirectory()) {
219 File [] files = fileToDelete.listFiles();
220 if (files == null) {
221 result = false;
222 } else {
223 for (int i = 0; i < files.length; i++) {
224 File file = files[i];
225 if (!file.getName().equals(".") && !file.getName().equals("..")) {
226 if (file.isDirectory()) {
227 result &= deleteFile(file);
228 } else {
229 result &= file.delete();
230 }
231 }
232 }
233 }
234 }
235 result &= fileToDelete.delete();
236 }
237 return result;
238 }
239
240
247 public static void zipDir(String directory, String zipName) throws IOException {
248 ZipOutputStream zos = new ZipOutputStream (new FileOutputStream (zipName));
250 String path = "";
251 zipDir(directory, zos, path);
252 zos.close();
254 }
255
256
263 public static void zipDir(String directory, ZipOutputStream zos, String path) throws IOException {
264 File zipDir = new File (directory);
265 String [] dirList = zipDir.list();
267 byte[] readBuffer = new byte[2156];
268 int bytesIn = 0;
269 for (int i = 0; i < dirList.length; i++) {
271 File f = new File (zipDir, dirList[i]);
272 if (f.isDirectory()) {
273 String filePath = f.getPath();
274 zipDir(filePath, zos, path + f.getName() + "/");
275 continue;
276 }
277 FileInputStream fis = new FileInputStream (f);
278 ZipEntry anEntry = new ZipEntry (path + f.getName());
279 zos.putNextEntry(anEntry);
280 while ((bytesIn = fis.read(readBuffer)) != -1) {
281 zos.write(readBuffer, 0, bytesIn);
282 }
283 fis.close();
284 }
285 }
286 } |
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