001package org.apache.maven.scm.provider.svn.svnexe.command;
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.util.ArrayList;
024import java.util.Iterator;
025import java.util.List;
026
027import org.apache.maven.scm.ScmFile;
028import org.apache.maven.scm.ScmFileStatus;
029import org.apache.maven.scm.log.ScmLogger;
030import org.codehaus.plexus.util.cli.StreamConsumer;
031
032/**
033 * @author <a href="mailto:kenney@apache.org">Kenney Westerhof</a>
034 *
035 */
036public abstract class AbstractFileCheckingConsumer
037    implements StreamConsumer
038{
039    protected ScmLogger logger;
040
041    protected File workingDirectory;
042
043    private List<ScmFile> files = new ArrayList<ScmFile>();
044
045    protected int revision;
046
047    private boolean filtered;
048
049    public AbstractFileCheckingConsumer( ScmLogger logger, File workingDirectory )
050    {
051        this.logger = logger;
052        this.workingDirectory = workingDirectory;
053    }
054
055    /** {@inheritDoc} */
056    public final void consumeLine( String line )
057    {
058        if ( line.length() <= 3 )
059        {
060            return;
061        }
062
063        if ( logger.isDebugEnabled() )
064        {
065            logger.debug( line );
066        }
067
068        try
069        {
070            parseLine( line );
071        }
072        catch ( RuntimeException re )
073        {
074            logger.warn( "RuntimeException while parsing: " + line , re );
075            throw re;
076        }
077    }
078
079    protected abstract void parseLine( String line );
080
081    protected List<ScmFile> getFiles()
082    {
083        
084        if ( !filtered )
085        {
086            for ( Iterator<ScmFile> ite = files.iterator(); ite.hasNext(); )
087            {
088                ScmFile file = ite.next();
089                if ( !file.getStatus().equals( ScmFileStatus.DELETED )
090                    && !new File( workingDirectory, file.getPath() ).isFile() )
091                {
092                    ite.remove();
093                }
094            }
095
096            filtered = true;
097        }
098
099        return files;
100    }
101
102    protected final int parseInt( String revisionString )
103    {
104        try
105        {
106            return Integer.parseInt( revisionString );
107        }
108        catch ( NumberFormatException ex )
109        {
110            return 0;
111        }
112    }
113
114    protected void addFile( ScmFile file )
115    {
116        files.add( file );
117    }
118
119    public final int getRevision()
120    {
121        return revision;
122    }
123
124    public File getWorkingDirectory()
125    {
126        return workingDirectory;
127    }
128
129}