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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/comparator/ExtensionFileComparator.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.comparator; import java.io.File; import java.io.Serializable; import java.util.Comparator; import org.apache.commons.io.FilenameUtils; import org.apache.commons.io.IOCase; /** * Compare the file name <b>extensions</b> for order * (see {@link FilenameUtils#getExtension(String)}). * <p> * This comparator can be used to sort lists or arrays of files * by their file extension either in a case-sensitive, case-insensitive or * system dependant case sensitive way. A number of singleton instances * are provided for the various case sensitivity options (using {@link IOCase}) * and the reverse of those options. * <p> * Example of a <i>case-sensitive</i> file extension sort using the * {@link #EXTENSION_COMPARATOR} singleton instance: * <pre> * List<File> list = ... * Collections.sort(list, ExtensionFileComparator.EXTENSION_COMPARATOR); * </pre> * <p> * Example of a <i>reverse case-insensitive</i> file extension sort using the * {@link #EXTENSION_INSENSITIVE_REVERSE} singleton instance: * <pre> * File[] array = ... * Arrays.sort(array, ExtensionFileComparator.EXTENSION_INSENSITIVE_REVERSE); * </pre> * <p> * * @version $Revision: 609243 $ $Date: 2008-01-06 00:30:42 +0000 (Sun, 06 Jan 2008) $ * @since Commons IO 1.4 */ public class ExtensionFileComparator implements Comparator, Serializable { /** Case-sensitive extension comparator instance (see {@link IOCase#SENSITIVE}) */ public static final Comparator EXTENSION_COMPARATOR = new ExtensionFileComparator(); /** Reverse case-sensitive extension comparator instance (see {@link IOCase#SENSITIVE}) */ public static final Comparator EXTENSION_REVERSE = new ReverseComparator(EXTENSION_COMPARATOR); /** Case-insensitive extension comparator instance (see {@link IOCase#INSENSITIVE}) */ public static final Comparator EXTENSION_INSENSITIVE_COMPARATOR = new ExtensionFileComparator(IOCase.INSENSITIVE); /** Reverse case-insensitive extension comparator instance (see {@link IOCase#INSENSITIVE}) */ public static final Comparator EXTENSION_INSENSITIVE_REVERSE = new ReverseComparator(EXTENSION_INSENSITIVE_COMPARATOR); /** System sensitive extension comparator instance (see {@link IOCase#SYSTEM}) */ public static final Comparator EXTENSION_SYSTEM_COMPARATOR = new ExtensionFileComparator(IOCase.SYSTEM); /** Reverse system sensitive path comparator instance (see {@link IOCase#SYSTEM}) */ public static final Comparator EXTENSION_SYSTEM_REVERSE = new ReverseComparator(EXTENSION_SYSTEM_COMPARATOR); /** Whether the comparison is case sensitive. */ private final IOCase caseSensitivity; /** * Construct a case sensitive file extension comparator instance. */ public ExtensionFileComparator() { this.caseSensitivity = IOCase.SENSITIVE; } /** * Construct a file extension comparator instance with the specified case-sensitivity. * * @param caseSensitivity how to handle case sensitivity, null means case-sensitive */ public ExtensionFileComparator(IOCase caseSensitivity) { this.caseSensitivity = caseSensitivity == null ? IOCase.SENSITIVE : caseSensitivity; } /** * Compare the extensions of two files the specified case sensitivity. * * @param obj1 The first file to compare * @param obj2 The second file to compare * @return a negative value if the first file's extension * is less than the second, zero if the extensions are the * same and a positive value if the first files extension * is greater than the second file. * */ public int compare(Object obj1, Object obj2) { File file1 = (File)obj1; File file2 = (File)obj2; String suffix1 = FilenameUtils.getExtension(file1.getName()); String suffix2 = FilenameUtils.getExtension(file2.getName()); return caseSensitivity.checkCompareTo(suffix1, suffix2); } }
⏎ org/apache/commons/io/comparator/ExtensionFileComparator.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, 46881👍, 0💬
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