001package 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
022import junit.framework.TestCase;
023
024import java.io.UnsupportedEncodingException;
025import java.net.URL;
026import java.net.URLDecoder;
027
028/**
029 * @author jdcasey
030 */
031public 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}