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1   package org.apache.maven.scm.provider.cvslib.command.blame;
2   
3   /*
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   * http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  import java.util.ArrayList;
23  import java.util.Date;
24  import java.util.List;
25  import java.util.Locale;
26  import java.util.regex.Matcher;
27  import java.util.regex.Pattern;
28  
29  import org.apache.maven.scm.command.blame.BlameLine;
30  import org.apache.maven.scm.log.ScmLogger;
31  import org.apache.maven.scm.util.AbstractConsumer;
32  
33  /**
34   * @author Evgeny Mandrikov
35   * @author Olivier Lamy
36   * @since 1.4
37   */
38  public class CvsBlameConsumer
39      extends AbstractConsumer
40  {
41      private static final String CVS_TIMESTAMP_PATTERN = "dd-MMM-yy";
42  
43      /* 1.1          (tor      24-Mar-03): */
44  
45      private static final Pattern LINE_PATTERN = Pattern.compile( "(.*)\\((.*)\\s+(.*)\\)" );
46  
47      private List<BlameLine> lines = new ArrayList<BlameLine>();
48  
49      public CvsBlameConsumer( ScmLogger logger )
50      {
51          super( logger );
52      }
53  
54      public void consumeLine( String line )
55      {
56          if ( line != null && line.indexOf( ':' ) > 0 )
57          {
58              String annotation = line.substring( 0, line.indexOf( ':' ) );
59              Matcher matcher = LINE_PATTERN.matcher( annotation );
60              if ( matcher.matches() )
61              {
62                  String revision = matcher.group( 1 ).trim();
63                  String author = matcher.group( 2 ).trim();
64                  String dateTimeStr = matcher.group( 3 ).trim();
65  
66                  Date dateTime = parseDate( dateTimeStr, null, CVS_TIMESTAMP_PATTERN, Locale.US );
67                  lines.add( new BlameLine( dateTime, revision, author ) );
68  
69                  if ( getLogger().isDebugEnabled() )
70                  {
71                      getLogger().debug( author + " " + dateTimeStr );
72                  }
73              }
74          }
75      }
76  
77      public List<BlameLine> getLines()
78      {
79          return lines;
80      }
81  
82  }