001    package org.apache.maven.scm.provider.accurev.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 java.io.File;
023    import java.io.IOException;
024    
025    public class WorkspaceUtils
026    {
027        public static boolean isSameFile( File file1, String filename2)
028        {
029            return isSameFile( file1, filename2 == null ? null : new File( filename2 ) );
030    
031        }
032    
033        //We need to canonicalise the files (if we can) before we compare them..
034        public static boolean isSameFile( File file1, File file2 )
035        {
036            
037            if ( file1 == file2 || ( file1 == null && file2 == null ) )
038            {
039                return true;
040            }
041    
042            if ( file1 == null || file2 == null )
043            {
044                return false;
045            }
046    
047            try
048            {
049                file1 = file1.getCanonicalFile();
050            }
051            catch ( IOException ioEx )
052            {
053                //Oh well, we'll compare the non-canonicalised file then.
054            }
055    
056            try
057            {
058                file2 = file2.getCanonicalFile();
059            }
060            catch ( IOException ioEx )
061            {
062                //Oh well, we'll compare the non-canonicalised file then.
063            }
064            return file1.equals( file2 );
065        }
066    
067        private WorkspaceUtils()
068        {
069            // no op only to prevents class creation
070        }
071    }