001    package org.apache.maven.tools.plugin.util;
002    
003    /*
004     * Licensed to the Apache Software Foundation (ASF) under one
005     * or more contributor license agreements.  See the NOTICE file
006     * distributed with this work for additional information
007     * regarding copyright ownership.  The ASF licenses this file
008     * to you under the Apache License, Version 2.0 (the
009     * "License"); you may not use this file except in compliance
010     * with the License.  You may obtain a copy of the License at
011     *
012     *   http://www.apache.org/licenses/LICENSE-2.0
013     *
014     * Unless required by applicable law or agreed to in writing,
015     * software distributed under the License is distributed on an
016     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017     * KIND, either express or implied.  See the License for the
018     * specific language governing permissions and limitations
019     * under the License.
020     */
021    
022    import junit.framework.TestCase;
023    
024    import java.io.UnsupportedEncodingException;
025    import java.net.URL;
026    import java.net.URLDecoder;
027    
028    /**
029     * @author jdcasey
030     */
031    public class TestUtils
032        extends TestCase
033    {
034    
035        public void testDirnameFunction_METATEST() throws UnsupportedEncodingException
036        {
037            String classname = getClass().getName().replace( '.', '/' ) + ".class";
038            String basedir = TestUtils.dirname( classname );
039    
040            ClassLoader cl = Thread.currentThread().getContextClassLoader();
041            URL resource = cl.getResource( classname );
042    
043            assertEquals( URLDecoder.decode( resource.getPath(), "UTF-8" ), basedir + classname );
044        }
045    
046        public static String dirname( String file )
047        {
048            ClassLoader cl = Thread.currentThread().getContextClassLoader();
049            URL fileResource = cl.getResource( file );
050    
051            String fullPath = fileResource.getPath();
052    
053            String path = fullPath.substring( 0, fullPath.length() - file.length() );
054    
055            try
056            {
057                /*
058                 * FIXME: URL encoding and HTML form encoding are not the same. Use FileUtils.toFile(URL) from plexus-utils
059                 * once PLXUTILS-56 is released.
060                 */
061                // necessary for JDK 1.5+, where spaces are escaped to %20
062                return URLDecoder.decode( path, "UTF-8" );
063            }
064            catch ( UnsupportedEncodingException e )
065            {
066                throw new Error( "Broken JVM, UTF-8 must be supported", e );
067            }
068        }
069    
070    }