Java tutorial
package org.mates.osb.utils; /* * Copyright 2001-2005 The Apache Software Foundation. * * Licensed 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. */ import java.io.Closeable; import java.io.File; import java.io.IOException; import org.apache.commons.io.FilenameUtils; /** * Helper class for file operations. * * @author mates */ public final class FileUtils { private FileUtils() { } /** * Gets file extension. If file has no extension blank file is returned. * * @param file * @return */ public static String getExtension(File file) { String name = file.getName(); int lastIndexOf = name.lastIndexOf('.'); if (lastIndexOf > -1) { return name.substring(lastIndexOf + 1); } return ""; } /** * Close quietly closeable resource. * * @param what */ public static void closeQuietly(Closeable what) { if (what != null) { try { what.close(); } catch (IOException e) { e.getMessage(); } } } /** * Gets base name of the file. Method trims extension and all path from full * path name. * * @param name * @return */ public static String getBaseName(String name) { return FilenameUtils.getBaseName(name); } }