diff options
Diffstat (limited to 'sandbox/rfeng/minicore/src/main/java/org/apache/tuscany/core/util/FileHelper.java')
| -rw-r--r-- | sandbox/rfeng/minicore/src/main/java/org/apache/tuscany/core/util/FileHelper.java | 704 |
1 files changed, 0 insertions, 704 deletions
diff --git a/sandbox/rfeng/minicore/src/main/java/org/apache/tuscany/core/util/FileHelper.java b/sandbox/rfeng/minicore/src/main/java/org/apache/tuscany/core/util/FileHelper.java deleted file mode 100644 index 2544c90846..0000000000 --- a/sandbox/rfeng/minicore/src/main/java/org/apache/tuscany/core/util/FileHelper.java +++ /dev/null @@ -1,704 +0,0 @@ -/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied. See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-
-package org.apache.tuscany.core.util;
-
-import java.io.File;
-import java.io.FileFilter;
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.net.URL;
-import java.util.regex.Pattern;
-
-public class FileHelper {
- /**
- * The extension separator character.
- */
- private static final char EXTENSION_SEPARATOR = '.';
-
- /**
- * The Unix separator character.
- */
- private static final char UNIX_SEPARATOR = '/';
-
- /**
- * The Windows separator character.
- */
- private static final char WINDOWS_SEPARATOR = '\\';
-
- protected FileHelper() {
- }
-
- /**
- * Returns the index of the last directory separator character.
- * <p>
- * This method will handle a file in either Unix or Windows format. The
- * position of the last forward or backslash is returned.
- * <p>
- * The output will be the same irrespective of the machine that the code is
- * running on.
- *
- * @param filename the filename to find the last path separator in, null
- * returns -1
- * @return the index of the last separator character, or -1 if there is no
- * such character
- */
- public static int indexOfLastSeparator(String filename) {
- if (filename == null) {
- return -1;
- }
- int lastUnixPos = filename.lastIndexOf(UNIX_SEPARATOR);
- int lastWindowsPos = filename.lastIndexOf(WINDOWS_SEPARATOR);
- return Math.max(lastUnixPos, lastWindowsPos);
- }
-
- /**
- * Returns the index of the last extension separator character, which is a
- * dot.
- * <p>
- * This method also checks that there is no directory separator after the
- * last dot. To do this it uses {@link #indexOfLastSeparator(String)} which
- * will handle a file in either Unix or Windows format.
- * <p>
- * The output will be the same irrespective of the machine that the code is
- * running on.
- *
- * @param filename the filename to find the last path separator in, null
- * returns -1
- * @return the index of the last separator character, or -1 if there is no
- * such character
- */
- public static int indexOfExtension(String filename) {
- if (filename == null) {
- return -1;
- }
- int extensionPos = filename.lastIndexOf(EXTENSION_SEPARATOR);
- int lastSeparator = indexOfLastSeparator(filename);
- return lastSeparator > extensionPos ? -1 : extensionPos;
- }
-
- /**
- * Gets the name minus the path from a full filename.
- * <p>
- * This method will handle a file in either Unix or Windows format. The text
- * after the last forward or backslash is returned.
- *
- * <pre>
- * a/b/c.txt --> c.txt
- * a.txt --> a.txt
- * a/b/c --> c
- * a/b/c/ --> ""
- * </pre>
- *
- * <p>
- * The output will be the same irrespective of the machine that the code is
- * running on.
- *
- * @param fileName the filename to query, null returns null
- * @return the name of the file without the path, or an empty string if none
- * exists
- */
- public static String getName(String fileName) {
- if (fileName == null) {
- return null;
- }
- int index = indexOfLastSeparator(fileName);
- return fileName.substring(index + 1);
- }
-
- /**
- * Gets the extension of a filename.
- * <p>
- * This method returns the textual part of the filename after the last dot.
- * There must be no directory separator after the dot.
- *
- * <pre>
- * foo.txt --> "txt"
- * a/b/c.jpg --> "jpg"
- * a/b.txt/c --> ""
- * a/b/c --> ""
- * </pre>
- *
- * <p>
- * The output will be the same irrespective of the machine that the code is
- * running on.
- *
- * @param filename the filename to retrieve the extension of.
- * @return the extension of the file or an empty string if none exists.
- */
- public static String getExtension(String filename) {
- if (filename == null) {
- return null;
- }
- int index = indexOfExtension(filename);
- if (index == -1) {
- return "";
- } else {
- return filename.substring(index + 1);
- }
- }
-
- /**
- * Make a directory, including any necessary but nonexistent parent
- * directories. If there already exists a file with specified name or the
- * directory cannot be created then an exception is thrown.
- *
- * @param directory directory to create, not null
- * @throws NullPointerException if the directory is null
- * @throws IOException if the directory cannot be created
- */
- public static void forceMkdir(File directory) throws IOException {
- if (directory.exists()) {
- if (directory.isFile()) {
- String message =
- "File " + directory + " exists and is " + "not a directory. Unable to create directory.";
- throw new IOException(message);
- }
- } else {
- if (!directory.mkdirs()) {
- String message = "Unable to create directory " + directory;
- throw new IOException(message);
- }
- }
- }
-
- /**
- * Delete a file. If file is a directory, delete it and all sub-directories.
- * <p>
- * The difference between File.delete() and this method are:
- * <ul>
- * <li>A directory to be deleted does not have to be empty.</li>
- * <li>You get exceptions when a file or directory cannot be deleted.
- * (java.io.File methods returns a boolean)</li>
- * </ul>
- *
- * @param file file or directory to delete, not null
- * @throws NullPointerException if the directory is null
- * @throws IOException in case deletion is unsuccessful
- */
- public static void forceDelete(File file) throws IOException {
- if (file.isDirectory()) {
- deleteDirectory(file);
- } else {
- if (!file.exists()) {
- throw new FileNotFoundException("File does not exist: " + file);
- }
- if (!file.delete()) {
- String message = "Unable to delete file: " + file;
- throw new IOException(message);
- }
- }
- }
-
- /**
- * Convert from a <code>URL</code> to a <code>File</code>.
- * <p>
- * From version 1.1 this method will decode the URL. Syntax such as
- * <code>file:///my%20docs/file.txt</code> will be correctly decoded to
- * <code>/my docs/file.txt</code>.
- *
- * @param url the file URL to convert, null returns null
- * @return the equivalent <code>File</code> object, or <code>null</code>
- * if the URL's protocol is not <code>file</code>
- * @throws IllegalArgumentException if the file is incorrectly encoded
- */
- public static File toFile(URL url) {
- if (url == null || !url.getProtocol().equals("file")) {
- return null;
- } else {
- String filename = url.getFile().replace('/', File.separatorChar);
- int pos = 0;
- while ((pos = filename.indexOf('%', pos)) >= 0) { // NOPMD
- if (pos + 2 < filename.length()) {
- String hexStr = filename.substring(pos + 1, pos + 3);
- char ch = (char)Integer.parseInt(hexStr, 16);
- filename = filename.substring(0, pos) + ch + filename.substring(pos + 3);
- }
- }
- return new File(filename);
- }
- }
-
- public static FileFilter getFileFilter(String regExp, boolean ignoreCase) {
- return new RegExpFilter(regExp, ignoreCase);
- }
-
- /**
- * A regular-expression based resource filter
- */
- public static class RegExpFilter implements FileFilter {
- private Pattern pattern;
-
- public RegExpFilter(Pattern pattern) {
- this.pattern = pattern;
- }
-
- public RegExpFilter(String patternStr, boolean ignoreCase) {
- this.pattern = Pattern.compile(patternStr, ignoreCase ? Pattern.CASE_INSENSITIVE : 0);
- }
-
- public boolean accept(File file) {
- return pattern.matcher(file.getName()).matches();
- }
-
- /**
- * Convert wildcard into a regex pattern
- *
- * @param str
- * @return
- */
- public static RegExpFilter getWildcardFilter(String str, boolean ignoreCase) {
- StringBuffer buffer = new StringBuffer();
- for (int i = 0; i < str.length(); i++) {
- char ch = str.charAt(i);
- if (ch == '?') {
- buffer.append('.');
- } else if (ch == '*') {
- buffer.append(".*");
- } else {
- buffer.append(ch);
- }
- }
- return new RegExpFilter(buffer.toString(), ignoreCase);
- }
-
- }
-
- /**
- * Clean a directory without deleting it.
- *
- * @param directory directory to clean
- * @throws IOException in case cleaning is unsuccessful
- */
- public static void cleanDirectory(File directory) throws IOException {
- if (!directory.exists()) {
- String message = directory + " does not exist";
- throw new IllegalArgumentException(message);
- }
-
- if (!directory.isDirectory()) {
- String message = directory + " is not a directory";
- throw new IllegalArgumentException(message);
- }
-
- File[] files = directory.listFiles();
- if (files == null) { // null if security restricted
- throw new IOException("Failed to list contents of " + directory);
- }
-
- IOException exception = null;
- for (int i = 0; i < files.length; i++) {
- File file = files[i];
- try {
- forceDelete(file);
- } catch (IOException ioe) {
- exception = ioe;
- }
- }
-
- if (null != exception) {
- throw exception;
- }
- }
-
- /**
- * Clean a directory without deleting it.
- *
- * @param directory directory to clean, must not be <code>null</code>
- * @throws NullPointerException if the directory is <code>null</code>
- * @throws IOException in case cleaning is unsuccessful
- */
- private static void cleanDirectoryOnExit(File directory) throws IOException {
- if (!directory.exists()) {
- String message = directory + " does not exist";
- throw new IllegalArgumentException(message);
- }
-
- if (!directory.isDirectory()) {
- String message = directory + " is not a directory";
- throw new IllegalArgumentException(message);
- }
-
- File[] files = directory.listFiles();
- if (files == null) { // null if security restricted
- throw new IOException("Failed to list contents of " + directory);
- }
-
- IOException exception = null;
- for (int i = 0; i < files.length; i++) {
- File file = files[i];
- try {
- forceDeleteOnExit(file);
- } catch (IOException ioe) {
- exception = ioe;
- }
- }
-
- if (null != exception) {
- throw exception;
- }
- }
-
- /**
- * Copies a whole directory to a new location preserving the file dates.
- * <p>
- * This method copies the specified directory and all its child directories
- * and files to the specified destination. The destination is the new
- * location and name of the directory.
- * <p>
- * The destination directory is created if it does not exist. If the
- * destination directory did exist, then this method merges the source with
- * the destination, with the source taking precedence.
- *
- * @param srcDir an existing directory to copy, must not be
- * <code>null</code>
- * @param destDir the new directory, must not be <code>null</code>
- * @throws NullPointerException if source or destination is
- * <code>null</code>
- * @throws IOException if source or destination is invalid
- * @throws IOException if an IO error occurs during copying
- * @since Commons IO 1.1
- */
- public static void copyDirectory(File srcDir, File destDir) throws IOException {
- copyDirectory(srcDir, destDir, true);
- }
-
- /**
- * Copies a whole directory to a new location.
- * <p>
- * This method copies the contents of the specified source directory to
- * within the specified destination directory.
- * <p>
- * The destination directory is created if it does not exist. If the
- * destination directory did exist, then this method merges the source with
- * the destination, with the source taking precedence.
- *
- * @param srcDir an existing directory to copy, must not be
- * <code>null</code>
- * @param destDir the new directory, must not be <code>null</code>
- * @param preserveFileDate true if the file date of the copy should be the
- * same as the original
- * @throws NullPointerException if source or destination is
- * <code>null</code>
- * @throws IOException if source or destination is invalid
- * @throws IOException if an IO error occurs during copying
- * @since Commons IO 1.1
- */
- public static void copyDirectory(File srcDir, File destDir, boolean preserveFileDate) throws IOException {
- if (srcDir == null) {
- throw new NullPointerException("Source must not be null");
- }
- if (destDir == null) {
- throw new NullPointerException("Destination must not be null");
- }
- if (!srcDir.exists()) {
- throw new FileNotFoundException("Source '" + srcDir + "' does not exist");
- }
- if (!srcDir.isDirectory()) {
- throw new IOException("Source '" + srcDir + "' exists but is not a directory");
- }
- if (srcDir.getCanonicalPath().equals(destDir.getCanonicalPath())) {
- throw new IOException("Source '" + srcDir + "' and destination '" + destDir + "' are the same");
- }
- doCopyDirectory(srcDir, destDir, preserveFileDate);
- }
-
- // -----------------------------------------------------------------------
- /**
- * Copies a directory to within another directory preserving the file dates.
- * <p>
- * This method copies the source directory and all its contents to a
- * directory of the same name in the specified destination directory.
- * <p>
- * The destination directory is created if it does not exist. If the
- * destination directory did exist, then this method merges the source with
- * the destination, with the source taking precedence.
- *
- * @param srcDir an existing directory to copy, must not be
- * <code>null</code>
- * @param destDir the directory to place the copy in, must not be
- * <code>null</code>
- * @throws NullPointerException if source or destination is
- * <code>null</code>
- * @throws IOException if source or destination is invalid
- * @throws IOException if an IO error occurs during copying
- * @since Commons IO 1.2
- */
- public static void copyDirectoryToDirectory(File srcDir, File destDir) throws IOException {
- if (srcDir == null) {
- throw new NullPointerException("Source must not be null");
- }
- if (!(srcDir.exists() && srcDir.isDirectory())) {
- throw new IllegalArgumentException("Source '" + destDir + "' is not a directory");
- }
- if (destDir == null) {
- throw new NullPointerException("Destination must not be null");
- }
- if (!(destDir.exists() && destDir.isDirectory())) {
- throw new IllegalArgumentException("Destination '" + destDir + "' is not a directory");
- }
- copyDirectory(srcDir, new File(destDir, srcDir.getName()), true);
- }
-
- /**
- * Copies a file to a new location preserving the file date.
- * <p>
- * This method copies the contents of the specified source file to the
- * specified destination file. The directory holding the destination file is
- * created if it does not exist. If the destination file exists, then this
- * method will overwrite it.
- *
- * @param srcFile an existing file to copy, must not be <code>null</code>
- * @param destFile the new file, must not be <code>null</code>
- * @throws NullPointerException if source or destination is
- * <code>null</code>
- * @throws IOException if source or destination is invalid
- * @throws IOException if an IO error occurs during copying
- * @see #copyFileToDirectory(File, File)
- */
- public static void copyFile(File srcFile, File destFile) throws IOException {
- copyFile(srcFile, destFile, true);
- }
-
- /**
- * Copies a file to a new location.
- * <p>
- * This method copies the contents of the specified source file to the
- * specified destination file. The directory holding the destination file is
- * created if it does not exist. If the destination file exists, then this
- * method will overwrite it.
- *
- * @param srcFile an existing file to copy, must not be <code>null</code>
- * @param destFile the new file, must not be <code>null</code>
- * @param preserveFileDate true if the file date of the copy should be the
- * same as the original
- * @throws NullPointerException if source or destination is
- * <code>null</code>
- * @throws IOException if source or destination is invalid
- * @throws IOException if an IO error occurs during copying
- * @see #copyFileToDirectory(File, File, boolean)
- */
- public static void copyFile(File srcFile, File destFile, boolean preserveFileDate) throws IOException {
- if (srcFile == null) {
- throw new NullPointerException("Source must not be null");
- }
- if (destFile == null) {
- throw new NullPointerException("Destination must not be null");
- }
- if (!srcFile.exists()) {
- throw new FileNotFoundException("Source '" + srcFile + "' does not exist");
- }
- if (srcFile.isDirectory()) {
- throw new IOException("Source '" + srcFile + "' exists but is a directory");
- }
- if (srcFile.getCanonicalPath().equals(destFile.getCanonicalPath())) {
- throw new IOException("Source '" + srcFile + "' and destination '" + destFile + "' are the same");
- }
- if (!(destFile.getParentFile() != null && destFile.getParentFile().exists())) {
- if (!destFile.getParentFile().mkdirs()) {
- throw new IOException("Destination '" + destFile + "' directory cannot be created");
- }
- }
- if (!(destFile.exists() && destFile.canWrite())) {
- throw new IOException("Destination '" + destFile + "' exists but is read-only");
- }
- doCopyFile(srcFile, destFile, preserveFileDate);
- }
-
- // -----------------------------------------------------------------------
- /**
- * Copies a file to a directory preserving the file date.
- * <p>
- * This method copies the contents of the specified source file to a file of
- * the same name in the specified destination directory. The destination
- * directory is created if it does not exist. If the destination file
- * exists, then this method will overwrite it.
- *
- * @param srcFile an existing file to copy, must not be <code>null</code>
- * @param destDir the directory to place the copy in, must not be
- * <code>null</code>
- * @throws NullPointerException if source or destination is null
- * @throws IOException if source or destination is invalid
- * @throws IOException if an IO error occurs during copying
- * @see #copyFile(File, File, boolean)
- */
- public static void copyFileToDirectory(File srcFile, File destDir) throws IOException {
- copyFileToDirectory(srcFile, destDir, true);
- }
-
- /**
- * Copies a file to a directory optionally preserving the file date.
- * <p>
- * This method copies the contents of the specified source file to a file of
- * the same name in the specified destination directory. The destination
- * directory is created if it does not exist. If the destination file
- * exists, then this method will overwrite it.
- *
- * @param srcFile an existing file to copy, must not be <code>null</code>
- * @param destDir the directory to place the copy in, must not be
- * <code>null</code>
- * @param preserveFileDate true if the file date of the copy should be the
- * same as the original
- * @throws NullPointerException if source or destination is
- * <code>null</code>
- * @throws IOException if source or destination is invalid
- * @throws IOException if an IO error occurs during copying
- * @see #copyFile(File, File, boolean)
- * @since Commons IO 1.3
- */
- public static void copyFileToDirectory(File srcFile, File destDir, boolean preserveFileDate) throws IOException {
- if (destDir == null) {
- throw new NullPointerException("Destination must not be null");
- }
- if (!(destDir.exists() && destDir.isDirectory())) {
- throw new IllegalArgumentException("Destination '" + destDir + "' is not a directory");
- }
- copyFile(srcFile, new File(destDir, srcFile.getName()), preserveFileDate);
- }
-
- // -----------------------------------------------------------------------
- /**
- * Recursively delete a directory.
- *
- * @param directory directory to delete
- * @throws IOException in case deletion is unsuccessful
- */
- public static void deleteDirectory(File directory) throws IOException {
- if (!directory.exists()) {
- return;
- }
-
- cleanDirectory(directory);
- if (!directory.delete()) {
- String message = "Unable to delete directory " + directory + ".";
- throw new IOException(message);
- }
- }
-
- /**
- * Recursively schedule directory for deletion on JVM exit.
- *
- * @param directory directory to delete, must not be <code>null</code>
- * @throws NullPointerException if the directory is <code>null</code>
- * @throws IOException in case deletion is unsuccessful
- */
- private static void deleteDirectoryOnExit(File directory) throws IOException {
- if (!directory.exists()) {
- return;
- }
-
- cleanDirectoryOnExit(directory);
- directory.deleteOnExit();
- }
-
- /**
- * Internal copy directory method.
- *
- * @param srcDir the validated source directory, must not be
- * <code>null</code>
- * @param destDir the validated destination directory, must not be
- * <code>null</code>
- * @param preserveFileDate whether to preserve the file date
- * @throws IOException if an error occurs
- * @since Commons IO 1.1
- */
- private static void doCopyDirectory(File srcDir, File destDir, boolean preserveFileDate) throws IOException {
- if (destDir.exists()) {
- if (!destDir.isDirectory()) {
- throw new IOException("Destination '" + destDir + "' exists but is not a directory");
- }
- } else {
- if (!destDir.mkdirs()) {
- throw new IOException("Destination '" + destDir + "' directory cannot be created");
- }
- if (preserveFileDate) {
- destDir.setLastModified(srcDir.lastModified());
- }
- }
- if (!destDir.canWrite()) {
- throw new IOException("Destination '" + destDir + "' cannot be written to");
- }
- // recurse
- File[] files = srcDir.listFiles();
- if (files == null) { // null if security restricted
- throw new IOException("Failed to list contents of " + srcDir);
- }
- for (int i = 0; i < files.length; i++) {
- File copiedFile = new File(destDir, files[i].getName());
- if (files[i].isDirectory()) {
- doCopyDirectory(files[i], copiedFile, preserveFileDate);
- } else {
- doCopyFile(files[i], copiedFile, preserveFileDate);
- }
- }
- }
-
- /**
- * Internal copy file method.
- *
- * @param srcFile the validated source file, must not be <code>null</code>
- * @param destFile the validated destination file, must not be
- * <code>null</code>
- * @param preserveFileDate whether to preserve the file date
- * @throws IOException if an error occurs
- */
- private static void doCopyFile(File srcFile, File destFile, boolean preserveFileDate) throws IOException {
- if (destFile.exists() && destFile.isDirectory()) {
- throw new IOException("Destination '" + destFile + "' exists but is a directory");
- }
-
- FileInputStream input = new FileInputStream(srcFile);
- try {
- FileOutputStream output = new FileOutputStream(destFile);
- try {
- IOHelper.copy(input, output);
- } finally {
- IOHelper.closeQuietly(output);
- }
- } finally {
- IOHelper.closeQuietly(input);
- }
-
- if (srcFile.length() != destFile.length()) {
- throw new IOException("Failed to copy full contents from '" + srcFile + "' to '" + destFile + "'");
- }
- if (preserveFileDate) {
- destFile.setLastModified(srcFile.lastModified());
- }
- }
-
- /**
- * Schedule a file to be deleted when JVM exits. If file is directory delete
- * it and all sub-directories.
- *
- * @param file file or directory to delete, must not be <code>null</code>
- * @throws NullPointerException if the file is <code>null</code>
- * @throws IOException in case deletion is unsuccessful
- */
- public static void forceDeleteOnExit(File file) throws IOException {
- if (file.isDirectory()) {
- deleteDirectoryOnExit(file);
- } else {
- file.deleteOnExit();
- }
- }
-
-}
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