001package 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
022import java.io.File;
023import java.io.IOException;
024
025/**
026 * 
027 */
028public class WorkspaceUtils
029{
030    public static boolean isSameFile( File file1, String filename2 )
031    {
032        return isSameFile( file1, filename2 == null ? null : new File( filename2 ) );
033
034    }
035
036    //We need to canonicalise the files (if we can) before we compare them..
037    public static boolean isSameFile( File file1, File file2 )
038    {
039        
040        if ( file1 == file2 || ( file1 == null && file2 == null ) )
041        {
042            return true;
043        }
044
045        if ( file1 == null || file2 == null )
046        {
047            return false;
048        }
049
050        try
051        {
052            file1 = file1.getCanonicalFile();
053        }
054        catch ( IOException ioEx )
055        {
056            //Oh well, we'll compare the non-canonicalised file then.
057        }
058
059        try
060        {
061            file2 = file2.getCanonicalFile();
062        }
063        catch ( IOException ioEx )
064        {
065            //Oh well, we'll compare the non-canonicalised file then.
066        }
067        return file1.equals( file2 );
068    }
069
070    private WorkspaceUtils()
071    {
072        // no op only to prevents class creation
073    }
074}