001    package org.apache.maven.scm.provider.cvslib.command.blame;
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.util.ArrayList;
023    import java.util.Date;
024    import java.util.List;
025    import java.util.Locale;
026    
027    import org.apache.maven.scm.command.blame.BlameLine;
028    import org.apache.maven.scm.log.ScmLogger;
029    import org.apache.maven.scm.util.AbstractConsumer;
030    import org.apache.regexp.RE;
031    
032    /**
033     * @author Evgeny Mandrikov
034     * @author Olivier Lamy
035     * @since 1.4
036     */
037    public class CvsBlameConsumer
038        extends AbstractConsumer
039    {
040        private static final String CVS_TIMESTAMP_PATTERN = "dd-MMM-yy";
041    
042        /* 1.1          (tor      24-Mar-03): */
043    
044        private static final String LINE_PATTERN = "(.*)\\((.*)\\s+(.*)\\)";
045    
046        /**
047         * @see #LINE_PATTERN
048         */
049        private RE lineRegexp;
050    
051        private List<BlameLine> lines = new ArrayList<BlameLine>();
052    
053        public CvsBlameConsumer( ScmLogger logger )
054        {
055            super( logger );
056    
057            lineRegexp = new RE( LINE_PATTERN );
058        }
059    
060        public void consumeLine( String line )
061        {
062            if (line != null && line.indexOf( ':' ) > 0 )
063            {
064                String annotation = line.substring( 0, line.indexOf( ':' ) );
065                if ( lineRegexp.match( annotation ) )
066                {
067                    String revision = lineRegexp.getParen( 1 ).trim();
068                    String author = lineRegexp.getParen( 2 ).trim();
069                    String dateTimeStr = lineRegexp.getParen( 3 ).trim();
070    
071                    Date dateTime = parseDate( dateTimeStr, null, CVS_TIMESTAMP_PATTERN, Locale.US );
072                    lines.add( new BlameLine( dateTime, revision, author ) );
073    
074                    if ( getLogger().isDebugEnabled() )
075                    {
076                        getLogger().debug( author + " " + dateTimeStr );
077                    }
078                }
079            }
080        }
081    
082        public List<BlameLine> getLines()
083        {
084            return lines;
085        }
086    
087    }