diff options
Diffstat (limited to 'extraplugins/epf-richtext/org.eclipse.epf.common/src/org/eclipse/epf/common/utils/FileUtil.java')
| -rw-r--r-- | extraplugins/epf-richtext/org.eclipse.epf.common/src/org/eclipse/epf/common/utils/FileUtil.java | 1285 |
1 files changed, 0 insertions, 1285 deletions
diff --git a/extraplugins/epf-richtext/org.eclipse.epf.common/src/org/eclipse/epf/common/utils/FileUtil.java b/extraplugins/epf-richtext/org.eclipse.epf.common/src/org/eclipse/epf/common/utils/FileUtil.java deleted file mode 100644 index bf8c51b2e74..00000000000 --- a/extraplugins/epf-richtext/org.eclipse.epf.common/src/org/eclipse/epf/common/utils/FileUtil.java +++ /dev/null @@ -1,1285 +0,0 @@ -//------------------------------------------------------------------------------
-// Copyright (c) 2005, 2007 IBM Corporation and others.
-// All rights reserved. This program and the accompanying materials
-// are made available under the terms of the Eclipse Public License v1.0
-// which accompanies this distribution, and is available at
-// http://www.eclipse.org/legal/epl-v10.html
-//
-// Contributors:
-// IBM Corporation - initial implementation
-//------------------------------------------------------------------------------
-package org.eclipse.epf.common.utils;
-
-import java.io.BufferedInputStream;
-import java.io.BufferedOutputStream;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
-import java.io.FileOutputStream;
-import java.io.FileWriter;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.io.OutputStream;
-import java.io.OutputStreamWriter;
-import java.io.PrintWriter;
-import java.net.URL;
-import java.nio.CharBuffer;
-import java.nio.MappedByteBuffer;
-import java.nio.channels.FileChannel;
-import java.nio.channels.FileLock;
-import java.nio.channels.OverlappingFileLockException;
-import java.nio.charset.Charset;
-import java.nio.charset.CharsetDecoder;
-import java.nio.charset.CodingErrorAction;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Enumeration;
-import java.util.List;
-import java.util.Locale;
-import java.util.Map;
-import java.util.zip.ZipEntry;
-import java.util.zip.ZipFile;
-
-import org.eclipse.core.runtime.IStatus;
-import org.eclipse.core.runtime.Platform;
-import org.eclipse.core.runtime.Status;
-import org.eclipse.epf.common.CommonPlugin;
-import org.osgi.framework.Bundle;
-
-/**
- * Utility class for managing directories and files.
- *
- * @author Kelvin Low
- * @author Jinhua Xi
- * @since 1.0
- */
-public class FileUtil {
-
- /**
- * Platform-specific line separator.
- */
- public static final String LINE_SEP = System.getProperty("line.separator"); //$NON-NLS-1$
-
- /**
- * Platform-specific file separator.
- */
- public static final String FILE_SEP = System.getProperty("file.separator"); //$NON-NLS-1$
-
- /**
- * Platform-specific line separator length.
- */
- public static final int LINE_SEP_LENGTH = LINE_SEP.length();
-
- /**
- * UNC path prefix.
- */
- public static final String UNC_PATH_PREFIX = "\\\\"; //$NON-NLS-1$
-
- /**
- * UNC path prefix length.
- */
- public static final int UNC_PATH_PREFIX_LENGTH = UNC_PATH_PREFIX.length();
-
- /**
- * ISO-8859-1 encoding.
- */
- public static final String ENCODING_ISO_8859_1 = "ISO-8859-1"; //$NON-NLS-1$
-
- /**
- * UTF-8 encoding.
- */
- public static final String ENCODING_UTF_8 = "UTF-8";//$NON-NLS-1$
-
- private static Map<File, File> copiedFileMap;
-
- /**
- * Private constructor to prevent this class from being instantiated. All
- * methods in this class should be static.
- */
- private FileUtil() {
- }
-
- /**
- * Returns the absolute path for a file or directory.
- *
- * @param file
- * a file or directory
- * @return the absolute path to the file or directory
- */
- public static String getAbsolutePath(File file) {
- return file.getAbsolutePath().replace('\\', '/');
- }
-
- /**
- * Returns the absolute path for a file or directory.
- *
- * @param path
- * a path to a file or directory
- * @return an absolute path to the file or directory
- */
- public static String getAbsolutePath(String path) {
- return getAbsolutePath(new File(path));
- }
-
- /**
- * Returns the absolute path for a URL.
- *
- * @param url
- * a URL
- * @return the absolute path of the URL
- */
- public static String getAbsolutePath(URL url) {
- String pathName = url.getFile().substring(1);
- String result = NetUtil.decodeUrl(pathName, null);
- return result;
- }
-
- /**
- * Returns the parent directory of a path.
- *
- * @param path
- * a path name
- * @return the name of the parent directory
- */
- public static String getParentDirectory(String path) {
- return (new File(path)).getParent();
- }
-
- /**
- * Returns the file name and extension from a path.
- *
- * @param path
- * a path name
- * @return the file name including the file extension
- */
- public static String getFileName(String path) {
- return getFileName(path, true);
- }
-
- /**
- * Returns the file name from a path, with or without the file extension.
- *
- * @param path
- * a path name
- * @param withExtension
- * if <code>true</code>, include the file extension in the
- * result
- * @return the file name with or without the file extension
- */
- public static String getFileName(String path, boolean withExtension) {
- String normalizedPath = path.replace('\\', '/');
-
- int prefixLength = 0;
- if (normalizedPath.startsWith(NetUtil.FILE_URI_PREFIX)) {
- prefixLength = NetUtil.FILE_URI_PREFIX_LENGTH;
- } else if (normalizedPath.startsWith(NetUtil.HTTP_URI_PREFIX)) {
- prefixLength = NetUtil.HTTP_URI_PREFIX_LENGTH;
- }
-
- String fileName;
- int index = normalizedPath.lastIndexOf("/"); //$NON-NLS-1$
- if (index < prefixLength) {
- fileName = normalizedPath.substring(prefixLength);
- } else {
- fileName = path.substring(index + 1);
- }
-
- if (withExtension) {
- return fileName;
- }
-
- index = fileName.indexOf("."); //$NON-NLS-1$
- return (index > 0) ? fileName.substring(0, index) : fileName;
- }
-
- /**
- * Returns the relative path of a path from a base path.
- *
- * @param path
- * a path
- * @param basePath
- * the base path
- * @return a relative path
- */
- public static String getRelativePathToBase(File path, File basePath) {
- try {
- String dir = path.toURL().toExternalForm();
- String baseDir = basePath.toURL().toExternalForm();
- StringBuffer result = new StringBuffer();
- if (dir.indexOf(baseDir) == 0) {
- String delta = dir.substring(baseDir.length());
- for (int i = 0; i < delta.length(); i++) {
- if (delta.charAt(i) == '/') {
- result.append("../"); //$NON-NLS-1$
- }
- }
- }
- return result.toString();
- } catch (Exception e) {
- return ""; //$NON-NLS-1$
- }
- }
-
- public static String getRelativePath(File path, File basePath) {
- try {
- String dir = path.toURL().toExternalForm();
- String baseDir = appendSeparator(basePath.toURL().toExternalForm(),
- "/"); //$NON-NLS-1$
- StringBuffer result = new StringBuffer();
- while (dir.indexOf(baseDir) == -1) {
- basePath = basePath.getParentFile();
- baseDir = appendSeparator(basePath.toURL().toExternalForm(),
- "/"); //$NON-NLS-1$
- result.append("../"); //$NON-NLS-1$
- }
- if (dir.indexOf(baseDir) == 0) {
- String delta = dir.substring(baseDir.length());
- result.append(delta);
- }
- return result.toString();
- } catch (Exception e) {
- return ""; //$NON-NLS-1$
- }
- }
-
- /**
- * Appends the platform specific path separator to the end of a path.
- *
- * @param path
- * a path name
- * @return the path name appended with the platform specific path separator
- */
- public static String appendSeparator(String path) {
- return appendSeparator(path, File.separator);
- }
-
- /**
- * Appends the given path separator to the end of a path
- *
- * @param path
- * a path name
- * @param separator
- * a path separator
- * @return the path name appended with the given separator
- */
- public static String appendSeparator(String path, String separator) {
- return path.endsWith(separator) ? path : path + separator;
- }
-
- /**
- * Removes the ending path separator from a path.
- *
- * @param path
- * a path name
- * @return the path name minus the platform specific path separator
- */
- public static String removeSeparator(String path) {
- return path.endsWith(File.separator) ? path.substring(0,
- path.length() - 1) : path;
- }
-
- /**
- * Removes the ending path separator from a path.
- *
- * @param path
- * a path name
- * @return the path name minus the path separator "\\" or "/"
- */
- public static String removeAllSeparator(String path) {
- return path.endsWith("/") || path.endsWith("\\") ? path.substring(0, path.length() - 1) : path; //$NON-NLS-1$ //$NON-NLS-2$
- }
-
- /**
- * Removes the ending path separator from a path.
- *
- * @param path
- * a path name
- * @param separator
- * a path separator
- * @return the path name minus the separator
- */
- public static String removeSeparator(String path, String separator) {
- return path.endsWith(separator) ? path.substring(0, path.length() - 1)
- : path;
- }
-
- /**
- * Replaces the file name with another in a path.
- *
- * @param path
- * a path name
- * @param oldFileName
- * the old file name
- * @param newFileName
- * the new file name
- * @return the new path name with the new file name
- */
- public static String replaceFileName(String path, String oldFileName,
- String newFileName) {
- int index = path.lastIndexOf(oldFileName);
- return path.substring(0, index) + newFileName;
- }
-
- /**
- * Replaces the file extension with another in a path.
- *
- * @param path
- * a path name
- * @param oldFileExt
- * rhe old file extension
- * @param newFileExt
- * the new file extension
- * @return the new path with the new file extension
- */
- public static String replaceExtension(String path, String oldExt,
- String newExt) {
- int index = path.lastIndexOf(oldExt);
- return path.substring(0, index) + newExt;
- }
-
- /**
- * Returns the locale-specific path of a base path.
- *
- * @param path
- * a base path name
- * @param localeStr
- * a locale string
- * @return the locale-specific path
- */
- public static String getLocalePath(String path, String localeStr) {
- if (StrUtil.isBlank(localeStr)) {
- return path;
- }
- String fileName = getFileName(path);
- return replaceFileName(path, fileName, localeStr + "/" + fileName); //$NON-NLS-1$
- }
-
- /**
- * Returns the locale-specific path of a base path.
- *
- * @param path
- * a base path name
- * @param locale
- * a locale object
- * @return the locale-specific path
- */
- public static String getLocalePath(String path, Locale locale) {
- return locale == null ? path : getLocalePath(path, locale.toString());
- }
-
- /**
- * Writes the given text to a text file.
- *
- * @param fileName
- * the target file name
- * @param text
- * the text to write
- * @return <code>true</code> if the given text is written successfully to
- * file
- */
- public static boolean writeFile(String filename, String text) {
- FileWriter writer = null;
- try {
- writer = new FileWriter(filename);
- writer.write(text);
- writer.flush();
- } catch (IOException e) {
- } finally {
- if (writer != null) {
- try {
- writer.close();
- return true;
- } catch (Exception e) {
- }
- }
- }
- return false;
- }
-
- /**
- * Write the given text to a file with UTF-8 encoding.
- *
- * @param fileName
- * the target file name
- * @param text
- * the text to write
- * @param append
- * if <code>true</code>, append the text to the end of the
- * file, if <code>false</code>, override the file
- * @return <code>true</code> if the given text is written successfully to
- * file
- */
- public static boolean writeUTF8File(String filename, String text) {
- return writeUTF8File(filename, text, false);
- }
-
- /**
- * Write the given text to a file with UTF-8 encoding.
- *
- * @param fileName
- * the target file name
- * @param text
- * the text to write
- * @param append
- * if <code>true</code>, append the text to the end of the
- * file, if <code>false</code>, override the file
- * @return <code>true</code> if the given text is written successfully to
- * file
- */
- public static boolean writeUTF8File(String filename, String text,
- boolean append) {
- OutputStreamWriter writer = null;
- FileOutputStream fileOut = null;
- try {
- fileOut = new FileOutputStream(filename, append);
- writer = new OutputStreamWriter(fileOut, ENCODING_UTF_8);
- writer.write(text);
- writer.flush();
- fileOut.flush();
- } catch (IOException e) {
- CommonPlugin.getDefault().getLogger().logError(e);
- } finally {
- if (writer != null) {
- try {
- writer.close();
- return true;
- } catch (Exception e) {
- }
- }
- if (fileOut != null) {
- try {
- fileOut.close();
- return true;
- } catch (Exception e) {
- }
- }
- }
- return false;
- }
-
- /**
- * Write the content of the given URI to an output stream.
- *
- * @param uri
- * the source URI
- * @param output
- * the output stream
- */
- public static void writeFile(String uri, OutputStream output)
- throws IOException {
- if (uri == null) {
- return;
- }
-
- InputStream input = null;
- try {
- input = NetUtil.getInputStream(uri);
- int bytesRead;
- byte[] buf = new byte[4096];
- while ((bytesRead = input.read(buf, 0, 4096)) > 0) {
- output.write(buf, 0, bytesRead);
- }
- output.flush();
- } finally {
- if (input != null) {
- try {
- input.close();
- } catch (Exception e) {
- }
- }
- }
- }
-
- /**
- * Write the content of the given URI to a <code>PrintWriter</code>.
- *
- * @param uri
- * the source URI
- * @param writer
- * the <code>PrintWriter</code> object
- */
- public static void writeFile(String uri, PrintWriter pw) throws IOException {
- if (uri == null) {
- return;
- }
-
- InputStreamReader input = null;
- try {
- input = new InputStreamReader(NetUtil.getInputStream(uri));
- int charsRead;
- char[] buf = new char[4096];
- while ((charsRead = input.read(buf, 0, 4096)) > 0) {
- pw.write(buf, 0, charsRead);
- }
- pw.flush();
- } finally {
- if (input != null) {
- try {
- input.close();
- } catch (Exception e) {
- }
- }
- }
- }
-
- /**
- * Recursively delete all sub-directories and files in a directory except
- * for the directory itself.
- *
- * @param dir
- * the directory containing the sub-directories and files
- * @return <code>true</code> if the delete operation is successful
- */
- public static boolean deleteAllFiles(String dir) {
- boolean ret = true;
- File targetDir = new File(dir);
- File[] files = targetDir.listFiles();
- if (files != null) {
- for (int i = 0; i < files.length; i++) {
- if (files[i].isDirectory()) {
- ret = ret && deleteAllFiles(files[i].getAbsolutePath());
- }
- ret = ret && files[i].delete();
- }
- }
-
- return ret;
- }
-
- public static boolean deleteTree(File file) {
- boolean ret = true;
-
- if (file.isDirectory()) {
- File[] files = file.listFiles();
- if (files != null) {
- for (File f : files) {
- if (!deleteTree(f)) {
- ret = false;
- }
- }
- }
- }
-
- if (!file.delete()) {
- ret = false;
- }
-
- return ret;
- }
-
- /**
- * Recursively delete all sub-directories and files in a directory except
- * for the directory itself and the specified file.
- *
- * @param dir
- * the directory containing the sub-directories and files
- * @param filesNotToDelete
- * a list of files and/or directories that should not be deleted
- * @return <code>true</code> if delete operation is successful
- */
- public static boolean deleteAllFiles(String dir, List<File> filesNotToDelete) {
- boolean ret = true;
- File targetDir = new File(dir);
- File[] files = targetDir.listFiles();
- if (files != null) {
- for (int i = 0; i < files.length; i++) {
- if (!filesNotToDelete.contains(files[i])) {
- if (files[i].isDirectory()) {
- ret = ret
- && deleteAllFiles(files[i].getAbsolutePath(),
- filesNotToDelete);
- }
- ret = ret && files[i].delete();
- }
- }
- }
-
- return ret;
- }
-
- /**
- * Copies the content of the source file to the target file. Will overwrite
- * an existing file if it has write permission
- *
- * @param srcFile
- * the source file or path
- * @param tgtFile
- * the target file or path
- */
- public static boolean copyFile(File srcFile, File tgtFile) {
- Map<File, File> map = getCopiedFileMap();
- File keyFile = null;
- File valFile = null;
- if (map != null) {
- try {
- keyFile = tgtFile.getCanonicalFile();
- valFile = srcFile.getCanonicalFile();
- if (valFile.equals(map.get(keyFile))) {
- return true;
- }
- } catch (Exception e) {
- keyFile = valFile = null;
- }
- }
-
- try {
- boolean ret = copyfile(srcFile, tgtFile);
- if (map != null && keyFile != null && valFile != null) {
- map.put(keyFile, valFile);
- }
- return ret;
- } catch (IOException ex) {
- CommonPlugin.getDefault().getLogger().logError(ex);
- return false;
- }
- }
-
- /**
- * Copies the content of the source file to the target file.
- *
- * @param srcFileName
- * the source file name
- * @param tgtFileName
- * the target file name
- */
- public static boolean copyFile(String srcFileName, String tgtFileName) {
- return copyFile(new File(srcFileName), new File(tgtFileName));
- }
-
- /**
- * Copies one file to another.
- * <p>
- * If both source and destination are directories, delegates to
- * copydirectory().
- * <p>
- * source must exist and be readable
- * <p>
- * cannot copy a directory to a file
- * <p>
- * will not copy if timestamps and filesize match, will overwrite otherwise
- *
- * @param source
- * the source file
- * @param dest
- * the destination file
- * @throws IOException
- * if an error occurs during the copy operation
- */
- private static boolean copyfile(File source, File dest) throws IOException {
- if (source.equals(dest))
- // do not copy equal files
- return false;
-
- if (!source.exists() || !source.canRead()) {
- // source does not exist or can't read
- return false;
- }
-
- if (dest.exists() && !dest.canWrite()) {
- // dest exists and cannot be written
- return false;
- }
-
- if (source.isDirectory()) {
- if (dest.isFile()) {
- // can't copy a directory to a file
- return false;
- } else {
- // delegate to copydirectory
- return copydirectory(source, dest);
- }
- } else {
- // source is a file
- if (dest.isDirectory()) {
- String sourceFileName = source.getName();
- return copyfile(source, new File(dest, sourceFileName));
- }
- // both source and dest are files
- boolean needCopy = true;
- if (dest.exists()) {
- needCopy = (dest.lastModified() != source.lastModified())
- || (dest.length() != source.length());
- }
-
- if (needCopy) {
- FileInputStream input = null;
- FileOutputStream output = null;
-
- try {
- input = new FileInputStream(source);
- FileChannel in = input.getChannel();
- if (!dest.exists()) {
- dest.getParentFile().mkdirs();
- }
- output = new FileOutputStream(dest);
- FileChannel out = output.getChannel();
- out.transferFrom(in, 0, source.length());
- dest.setLastModified(source.lastModified());
- return true;
- } finally {
- if (input != null) {
- try {
- input.close();
- } catch (IOException e) {
- }
- }
- if (output != null) {
- try {
- output.close();
- } catch (IOException e) {
- }
- }
- }
- } else {
- // did not copy
- // return true because dest file is same as source
- return true;
- }
- }
- }
-
- /**
- * Copies the content of a directory to another directory.
- *
- * @param srcDirName
- * the source directory name
- * @param tgtDirName
- * the target directory name
- */
- public static boolean copyDir(File srcDir, File tgtDir) {
- try {
- return copydirectory(srcDir, tgtDir);
- } catch (IOException ex) {
- CommonPlugin.getDefault().getLogger().logError(ex);
- return false;
- }
- }
-
- /**
- * Copies the content of a directory to another directory.
- *
- * @param srcDirName
- * the source directory name
- * @param tgtDirName
- * the target directory name
- */
- public static boolean copyDir(String srcDirName, String tgtDirName) {
- return copyDir(new File(srcDirName), new File(tgtDirName));
- }
-
- /**
- * Copies one directory to another - operates ONLY on directories.
- * <p>
- * Both source and dest must exist.
- */
- private static boolean copydirectory(File sourceDir, File destDir)
- throws IOException {
- if (!sourceDir.exists() || !destDir.exists()) {
- return false;
- }
-
- if (!sourceDir.isDirectory() || !destDir.isDirectory()) {
- return false;
- }
-
- File[] files = sourceDir.listFiles();
- if (files != null) {
- for (int i = 0; i < files.length; i++) {
- // calc destination name
- String destName = destDir
- + File.separator
- + files[i].getAbsolutePath().substring(
- sourceDir.getAbsolutePath().length() + 1);
- if (files[i].isFile()) {
- // copy the file
- copyfile(files[i], new File(destName));
- } else if (files[i].isDirectory()) {
- // copy directory recursively
- File destFile = new File(destName);
- destFile.mkdirs();
- copydirectory(files[i], destFile);
- }
- }
- }
- return true;
- }
-
- // for some reason, this guy locks the file, if you try to update the file,
- // got the following exception
- // java.io.FileNotFoundException:
- // (The requested operation cannot be performed on a file with a user-mapped
- // section open)
- // need to handle later
- public static CharBuffer readFile(File file) throws IOException {
- FileInputStream input = null;
- CharBuffer charBuffer = null;
- try {
- input = new FileInputStream(file);
- FileChannel inChannel = input.getChannel();
- int length = (int) inChannel.size();
- MappedByteBuffer byteBuffer = inChannel.map(
- FileChannel.MapMode.READ_ONLY, 0, length);
- Charset charset = Charset.forName(ENCODING_ISO_8859_1);
- CharsetDecoder decoder = charset.newDecoder();
- charBuffer = decoder.decode(byteBuffer);
- } finally {
- if (input != null) {
- try {
- input.close();
- } catch (IOException e) {
- }
- }
- }
- return charBuffer;
- }
-
- public static String readInputStream(InputStream input) throws IOException {
- String result = ""; //$NON-NLS-1$
- byte[] readData = new byte[8 * 1024];
- try {
- int bytesRead = 0;
- while ( (bytesRead = input.read(readData)) > 0) {
- result += new String(readData, 0, bytesRead);
- }
- } finally {
- if (input != null) {
- try {
- input.close();
- } catch (IOException e) {
- }
- }
- }
- return result;
- }
-
- public static StringBuffer readFile(File file, String encoding)
- throws IOException {
-
- StringBuffer result = new StringBuffer();
- FileInputStream fis = null;
- InputStreamReader reader = null;
- int size;
- try {
- Charset cs = Charset.forName(encoding);
- CharsetDecoder csd = cs.newDecoder();
- csd.onMalformedInput(CodingErrorAction.REPLACE);
- char[] buffer = new char[1024];
- fis = new FileInputStream(file);
- reader = new InputStreamReader(fis, csd);
- while ((size = reader.read(buffer, 0, 1024)) > 0) {
- result.append(buffer, 0, size);
- }
- } catch (Exception e) {
- // System.out.println(encoding);
- e.printStackTrace();
- } finally {
- if (fis != null) {
- fis.close();
- }
-
- if (reader != null) {
- reader.close();
- }
- }
-
- return result;
- }
-
- public static long getSize(File file) {
- FileInputStream fis = null;
- try {
- fis = new FileInputStream(file);
- return fis.getChannel().size();
- }
- catch (IOException e) {
- //
- }
- finally {
- try {
- fis.close();
- }
- catch(Exception e) {
- //
- }
- }
- return -1;
- }
-
- /**
- * Uses Java 1.4's FileLock class to test for a file lock
- *
- * @param file
- * @return
- */
- public static boolean isFileLocked(File file) {
- boolean isLocked = false;
- FileOutputStream input = null;
- FileLock lock = null;
-
- if (!file.exists()) {
- return false;
- }
- try {
- input = new FileOutputStream(file);
- FileChannel fileChannel = input.getChannel();
-
- lock = fileChannel.tryLock();
-
- if (lock == null)
- isLocked = true;
- else
- lock.release();
- } catch (Exception e) {
- if (e instanceof SecurityException)
- // Can't write to file.
- isLocked = true;
- else if (e instanceof FileNotFoundException)
- isLocked = false;
- else if (e instanceof IOException)
- isLocked = true;
- // OverlappingFileLockException means that this JVM has it locked
- // therefore it is not locked to us
- else if (e instanceof OverlappingFileLockException)
- isLocked = false;
- // Could not get a lock for some other reason.
- else
- isLocked = true;
- } finally {
- if (input != null) {
- try {
- input.close();
- } catch (Exception ex) {
- }
- }
- }
- return isLocked;
- }
-
- /**
- * Locks a file for the current JVM. Will create the file if it does not
- * exist
- *
- * @param file
- * @return a FileLock object, or null if file could not be locked
- */
- public static FileLock lockFile(File file) {
- FileOutputStream input = null;
- FileLock lock = null;
- try {
- input = new FileOutputStream(file);
- FileChannel fileChannel = input.getChannel();
- lock = fileChannel.tryLock();
-
- if (lock.isValid())
- return lock;
- } catch (Exception e) {
- // Could not get a lock for some reason.
- return null;
- } finally {
- try {
- if (input != null && (lock == null || !lock.isValid())) {
- input.close();
- }
- } catch (Exception ex) {
- }
- }
- return null;
- }
-
- /**
- * Gets all files in a specified path.
- *
- * @param path
- * absolute path of a folder
- * @param fileList
- * a list to collect the files
- * @param recursive
- * if <code>true</code>, find the files in sub folders as well
- */
- public static void getAllFiles(File path, List<File> fileList,
- boolean recursive) {
- if (path.isDirectory()) {
- File[] files = path.listFiles();
- if (files != null) {
- for (int i = 0; i < files.length; i++) {
- if (files[i].isFile()) {
- fileList.add(files[i]);
- } else if (recursive) {
- getAllFiles(files[i], fileList, recursive);
- }
- }
- }
- }
- }
-
- /**
- * Given a directory and extension, returns all files (recursively) whose
- * extension starts with a given extension.
- *
- * @param file
- * a directory
- * @param extension
- * a file extension
- * @return a colleciton of <code>File</code> with the given extension
- */
- public static List<File> fileList(File f, String extension) {
- extension = extension.toUpperCase();
- List<File> returnList = new ArrayList<File>();
- try {
- if (f.isDirectory()) {
- String[] flist = f.list();
- for (int i = 0; i < flist.length; ++i) {
- File fc = new File(f.getPath(), flist[i]);
- returnList.addAll(fileList(fc, extension));
- }
- } else {
- if (extension != null) {
- String name = f.getName().toUpperCase();
- if (name.lastIndexOf(".") != -1) //$NON-NLS-1$
- if (name
- .substring(name.lastIndexOf(".") + 1).startsWith(extension)) { //$NON-NLS-1$
- returnList.add(f);
- }
- } else
- returnList.add(f);
- }
- } catch (Exception e) {
- CommonPlugin.getDefault().getLogger().logError(e);
- }
- return returnList;
- }
-
- /**
- * Given a directory and extension, returns all files (recursively) whose
- * extension does not starts with a given extension.
- *
- * @param file
- * a directory
- * @param extension
- * a file extension
- * @return a colleciton of <code>File</code> without the given extension
- */
- public static List<File> fileListExcludeExt(File f, String extension) {
- List<File> returnList = new ArrayList<File>();
- try {
- if (f.isDirectory()) {
- String[] flist = f.list();
- for (int i = 0; i < flist.length; ++i) {
- File fc = new File(f.getPath(), flist[i]);
- returnList.addAll(fileListExcludeExt(fc, extension));
- }
- } else {
- if (extension != null) {
- String name = f.getName();
- if (name.lastIndexOf(".") != -1) //$NON-NLS-1$
- if (!(name.substring(name.lastIndexOf(".") + 1).startsWith(extension))) { //$NON-NLS-1$
- returnList.add(f);
- }
- } else
- returnList.add(f);
- }
- } catch (Exception e) {
- CommonPlugin.getDefault().getLogger().logError(e);
- }
- return returnList;
- }
-
- /**
- * Gets all file paths in the specified path.
- *
- * @param path,
- * absolute path of a folder
- * @param recursive
- * if <code>true</code>, find the files in sub folders as well
- */
- public static ArrayList<String> getAllFileAbsolutePaths(File path,
- boolean recursive) {
- ArrayList<File> files = new ArrayList<File>();
- getAllFiles(path, files, recursive);
- ArrayList<String> paths = new ArrayList<String>();
- for (int i = 0; i < files.size(); i++) {
- String absPath = ((File) files.get(i)).getAbsolutePath();
- paths.add(absPath);
- }
- return paths;
- }
-
- /**
- * Moves a file from a directory to another.
- * <p>
- * Attempts to rename the file first. If that fails, will copy the
- * sourceFile to destFile and delete the sourceFile.
- *
- * @param sourceFile
- * the source file
- * @param destFile
- * the destination file
- * @return
- */
- public static boolean moveFile(File sourceFile, File destFile) {
- try {
- doMoveFile(sourceFile, destFile);
- return true;
- } catch (Exception e) {
- CommonPlugin.getDefault().getLogger().logError(e);
- return false;
- }
- }
-
- public static void doMoveFile(File sourceFile, File destFile) throws IOException {
- // Try to rename the source file to the destination file.
- if (!sourceFile.renameTo(destFile)) {
- // Try to copy the source file to the destination file and
- // delete
- // the source file.
- copyfile(sourceFile, destFile);
- sourceFile.delete();
- }
- }
-
- private static Map<File, File> getCopiedFileMap() {
- return copiedFileMap;
- }
-
- public static void setCopiedFileMap(Map<File, File> copiedFileMap) {
- FileUtil.copiedFileMap = copiedFileMap;
- }
-
-
- /**
- * Unzips the contents of a zip file to a directory
- *
- * @param zipfile
- * source zip file
- * @param tgtDir
- * target directory
- */
- public static boolean unzip(File srcZipFile, File tgtDir) {
- if (! srcZipFile.exists() || ! tgtDir.exists()) {
- return false;
- }
-
- if (! tgtDir.isDirectory()) {
- return false;
- }
-
- try {
- ZipFile zipFile = new ZipFile(srcZipFile);
- Enumeration entries = zipFile.entries();
-
- while (entries.hasMoreElements()) {
- ZipEntry entry = (ZipEntry) entries.nextElement();
-
- File tgtFile = new File(tgtDir, entry.getName());
-
- if (entry.isDirectory() && ! tgtFile.exists()) {
- tgtFile.mkdirs();
-
- } else {
- File parentFolder = tgtFile.getParentFile();
- if (! parentFolder.exists()) {
- parentFolder.mkdirs();
- }
-
- copyInputStream(zipFile.getInputStream(entry),
- new BufferedOutputStream(new FileOutputStream(
- new File(tgtDir, entry.getName()))));
- }
- }
-
- zipFile.close();
- } catch (IOException ioe) {
- return false;
- }
- return false;
- }
-
- private static final void copyInputStream(InputStream in, OutputStream out)
- throws IOException {
- byte[] buffer = new byte[1024];
- int len;
-
- while ((len = in.read(buffer)) >= 0)
- out.write(buffer, 0, len);
-
- in.close();
- out.close();
- }
-
- public static class FileChecker {
- public IStatus syncExecCheckModify(List<String> modifiedFiles) {
- return Status.OK_STATUS;
- }
- }
-
- private static FileChecker fileChecker;
- private static void loadDeafultFileChecker() {
- if (fileChecker != null) {
- return;
- }
- Bundle bundle = Platform.getBundle("org.eclipse.epf.import");
- try {
- bundle.start();
- } catch (Exception e) {
- }
- }
- public static void setFileChecker(FileChecker fileChecker) {
- FileUtil.fileChecker = fileChecker;
- }
-
- public static IStatus syncExecCheckModify(List<String> modifiedFiles) {
- loadDeafultFileChecker();
- if (fileChecker != null) {
- return fileChecker.syncExecCheckModify(modifiedFiles);
- }
- return Status.OK_STATUS;
- }
-
- public static boolean binaryEqual(File f1, File f2) {
- BufferedInputStream is1 = null;
- BufferedInputStream is2 = null;
-
- int bufSz = 1024;
- byte buff1[] = new byte[bufSz];
- byte buff2[] = new byte[bufSz];
-
- try {
- is1 = new BufferedInputStream(new FileInputStream(f1));
- is2 = new BufferedInputStream(new FileInputStream(f2));
-
- int read1 = -1;
- int read2 = -1;
-
- do {
- int offset1 = 0;
- while (offset1 < bufSz
- && (read1 = is1.read(buff1, offset1, bufSz - offset1)) >= 0) {
- offset1 += read1;
- }
-
- int offset2 = 0;
- while (offset2 < bufSz
- && (read2 = is2.read(buff2, offset2, bufSz - offset2)) >= 0) {
- offset2 += read2;
- }
- if (offset1 != offset2)
- return false;
- if (offset1 != bufSz) {
- Arrays.fill(buff1, offset1, bufSz, (byte) 0);
- Arrays.fill(buff2, offset2, bufSz, (byte) 0);
- }
- if (!Arrays.equals(buff1, buff2))
- return false;
- } while (read1 >= 0 && read2 >= 0);
- if (read1 < 0 && read2 < 0)
- return true;
- return false;
-
- } catch (Exception e) {
- CommonPlugin.getDefault().getLogger().logError(e);
- return false;
- }
- }
-
-}
\ No newline at end of file |