| /** |
| * 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.activemq.util; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| |
| /** |
| * |
| */ |
| public final class IOHelper { |
| protected static final int MAX_DIR_NAME_LENGTH; |
| protected static final int MAX_FILE_NAME_LENGTH; |
| private static final int DEFAULT_BUFFER_SIZE = 4096; |
| private IOHelper() { |
| } |
| |
| public static String getDefaultDataDirectory() { |
| return getDefaultDirectoryPrefix() + "activemq-data"; |
| } |
| |
| public static String getDefaultStoreDirectory() { |
| return getDefaultDirectoryPrefix() + "amqstore"; |
| } |
| |
| /** |
| * Allows a system property to be used to overload the default data |
| * directory which can be useful for forcing the test cases to use a target/ |
| * prefix |
| */ |
| public static String getDefaultDirectoryPrefix() { |
| try { |
| return System.getProperty("org.apache.activemq.default.directory.prefix", ""); |
| } catch (Exception e) { |
| return ""; |
| } |
| } |
| |
| public static boolean deleteFile(File fileToDelete) { |
| if (fileToDelete == null || !fileToDelete.exists()) { |
| return true; |
| } |
| boolean result = deleteChildren(fileToDelete); |
| result &= fileToDelete.delete(); |
| return result; |
| } |
| |
| public static boolean deleteChildren(File parent) { |
| if (parent == null || !parent.exists()) { |
| return false; |
| } |
| boolean result = true; |
| if (parent.isDirectory()) { |
| File[] files = parent.listFiles(); |
| if (files == null) { |
| result = false; |
| } else { |
| for (int i = 0; i < files.length; i++) { |
| File file = files[i]; |
| if (file.getName().equals(".") |
| || file.getName().equals("..")) { |
| continue; |
| } |
| if (file.isDirectory()) { |
| result &= deleteFile(file); |
| } else { |
| result &= file.delete(); |
| } |
| } |
| } |
| } |
| |
| return result; |
| } |
| |
| |
| public static void moveFile(File src, File targetDirectory) throws IOException { |
| if (!src.renameTo(new File(targetDirectory, src.getName()))) { |
| throw new IOException("Failed to move " + src + " to " + targetDirectory); |
| } |
| } |
| |
| public static void copyFile(File src, File dest) throws IOException { |
| FileInputStream fileSrc = new FileInputStream(src); |
| FileOutputStream fileDest = new FileOutputStream(dest); |
| copyInputStream(fileSrc, fileDest); |
| } |
| |
| public static void copyInputStream(InputStream in, OutputStream out) throws IOException { |
| byte[] buffer = new byte[DEFAULT_BUFFER_SIZE]; |
| int len = in.read(buffer); |
| while (len >= 0) { |
| out.write(buffer, 0, len); |
| len = in.read(buffer); |
| } |
| in.close(); |
| out.close(); |
| } |
| |
| static { |
| MAX_DIR_NAME_LENGTH = Integer.valueOf(System.getProperty("MaximumDirNameLength","200")).intValue(); |
| MAX_FILE_NAME_LENGTH = Integer.valueOf(System.getProperty("MaximumFileNameLength","64")).intValue(); |
| } |
| |
| |
| public static void mkdirs(File dir) throws IOException { |
| if (dir.exists()) { |
| if (!dir.isDirectory()) { |
| throw new IOException("Failed to create directory '" + dir +"', regular file already existed with that name"); |
| } |
| |
| } else { |
| if (!dir.mkdirs()) { |
| throw new IOException("Failed to create directory '" + dir+"'"); |
| } |
| } |
| } |
| } |