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commons-io-1.4.jar - Apache Commons IO
commons-io-1.4.jar is the JAR file for Commons IO 1.4, which is a library of utilities to assist with developing IO functionality.
JAR File Size and Download Location:
JAR name: commons-io.jar, commons-io-1.4.jar Target JDK version: 1.3 Dependency: None File size: 109043 bytes Date modified: 16-Jan-2008 Download: Apache Commons IO Website
✍: FYIcenter.com
⏎ org/apache/commons/io/FileDeleteStrategy.java
/* * 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.commons.io; import java.io.File; import java.io.IOException; /** * Strategy for deleting files. * <p> * There is more than one way to delete a file. * You may want to limit access to certain directories, to only delete * directories if they are empty, or maybe to force deletion. * <p> * This class captures the strategy to use and is designed for user subclassing. * * @author Stephen Colebourne * @version $Id: FileDeleteStrategy.java 453903 2006-10-07 13:47:06Z scolebourne $ * @since Commons IO 1.3 */ public class FileDeleteStrategy { /** * The singleton instance for normal file deletion, which does not permit * the deletion of directories that are not empty. */ public static final FileDeleteStrategy NORMAL = new FileDeleteStrategy("Normal"); /** * The singleton instance for forced file deletion, which always deletes, * even if the file represents a non-empty directory. */ public static final FileDeleteStrategy FORCE = new ForceFileDeleteStrategy(); /** The name of the strategy. */ private final String name; //----------------------------------------------------------------------- /** * Restricted constructor. * * @param name the name by which the strategy is known */ protected FileDeleteStrategy(String name) { this.name = name; } //----------------------------------------------------------------------- /** * Deletes the file object, which may be a file or a directory. * All <code>IOException</code>s are caught and false returned instead. * If the file does not exist or is null, true is returned. * <p> * Subclass writers should override {@link #doDelete(File)}, not this method. * * @param fileToDelete the file to delete, null returns true * @return true if the file was deleted, or there was no such file */ public boolean deleteQuietly(File fileToDelete) { if (fileToDelete == null || fileToDelete.exists() == false) { return true; } try { return doDelete(fileToDelete); } catch (IOException ex) { return false; } } /** * Deletes the file object, which may be a file or a directory. * If the file does not exist, the method just returns. * <p> * Subclass writers should override {@link #doDelete(File)}, not this method. * * @param fileToDelete the file to delete, not null * @throws NullPointerException if the file is null * @throws IOException if an error occurs during file deletion */ public void delete(File fileToDelete) throws IOException { if (fileToDelete.exists() && doDelete(fileToDelete) == false) { throw new IOException("Deletion failed: " + fileToDelete); } } /** * Actually deletes the file object, which may be a file or a directory. * <p> * This method is designed for subclasses to override. * The implementation may return either false or an <code>IOException</code> * when deletion fails. The {@link #delete(File)} and {@link #deleteQuietly(File)} * methods will handle either response appropriately. * A check has been made to ensure that the file will exist. * <p> * This implementation uses {@link File#delete()}. * * @param fileToDelete the file to delete, exists, not null * @return true if the file was deleteds * @throws NullPointerException if the file is null * @throws IOException if an error occurs during file deletion */ protected boolean doDelete(File fileToDelete) throws IOException { return fileToDelete.delete(); } //----------------------------------------------------------------------- /** * Gets a string describing the delete strategy. * * @return a string describing the delete strategy */ public String toString() { return "FileDeleteStrategy[" + name + "]"; } //----------------------------------------------------------------------- /** * Force file deletion strategy. */ static class ForceFileDeleteStrategy extends FileDeleteStrategy { /** Default Constructor */ ForceFileDeleteStrategy() { super("Force"); } /** * Deletes the file object. * <p> * This implementation uses <code>FileUtils.forceDelete() <code> * if the file exists. * * @param fileToDelete the file to delete, not null * @return Always returns <code>true</code> * @throws NullPointerException if the file is null * @throws IOException if an error occurs during file deletion */ protected boolean doDelete(File fileToDelete) throws IOException { FileUtils.forceDelete(fileToDelete); return true; } } }
⏎ org/apache/commons/io/FileDeleteStrategy.java
Or download all of them as a single archive file:
File name: commons-io-1.4-sources.jar File size: 280834 bytes Release date: 2008-01-16 Download
⇒ Using commons-io.jar in Java Code
2018-10-27, 47220👍, 0💬
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