/*******************************************************************************
* Copyright (c) 2007, 2014 compeople AG and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* compeople AG - initial API and implementation
*******************************************************************************/
package org.eclipse.riena.core.util;
import java.io.File;
import org.eclipse.core.runtime.Assert;
/**
* Collection of File/filename utilities.
*
* @since 6.1
*/
public final class FileUtils {
/**
* Private default constructor.
*/
private FileUtils() {
// Utility class
}
/**
* Returns the file name without its file extension or path.
*
* @param file
* The name of the file to trim the extension from. This can be either a fully qualified file name (including a path) or just a file name.
* @return The file name without its path or extension.
*/
public static String getNameWithoutExtension(final String file) {
Assert.isNotNull(file, "file must be given!"); //$NON-NLS-1$
final String fileName = new File(file).getName();
final int dotIndex = fileName.lastIndexOf('.');
return (dotIndex == -1) ? fileName : fileName.substring(0, dotIndex);
}
/**
* Returns the file extension for the given file name, or the empty string if the file has no extension. The result does not include the '.'.
*
* @param fullName
* @return file extension or empty string if the file has no extension
*/
public static String getFileExtension(final String fullName) {
Assert.isNotNull(fullName, "fullName must be given!"); //$NON-NLS-1$
final String fileName = new File(fullName).getName();
final int dotIndex = fileName.lastIndexOf('.');
return (dotIndex == -1) ? "" : fileName.substring(dotIndex + 1); //$NON-NLS-1$
}
}