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
025public 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}