1 package org.apache.maven.scm.provider.perforce.command.changelog;
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 org.apache.maven.scm.ScmException;
23 import org.apache.maven.scm.log.ScmLogger;
24 import org.apache.maven.scm.util.AbstractConsumer;
25 import org.apache.regexp.RE;
26 import org.apache.regexp.RESyntaxException;
27
28 import java.util.ArrayList;
29 import java.util.List;
30
31 /**
32 * @author <a href="mailto:evenisse@apache.org">Emmanuel Venisse</a>
33 * @author Olivier Lamy
34 *
35 */
36 public class PerforceChangesConsumer
37 extends AbstractConsumer
38 {
39 private List<String> entries = new ArrayList<String>();
40
41 /**
42 * The regular expression used to match header lines
43 */
44 private RE revisionRegexp;
45
46 private static final String PATTERN = "^Change (\\d+) " + // changelist number
47 "on (.*) " + // date
48 "by (.*)@"; // author
49
50 public PerforceChangesConsumer( ScmLogger logger )
51 {
52 super( logger );
53
54 try
55 {
56 revisionRegexp = new RE( PATTERN );
57 }
58 catch ( RESyntaxException ignored )
59 {
60 if ( getLogger().isErrorEnabled() )
61 {
62 getLogger().error( "Could not create regexp to parse perforce log file", ignored );
63 }
64 }
65 }
66
67 public List<String> getChanges() throws ScmException
68 {
69 return entries;
70 }
71
72 // ----------------------------------------------------------------------
73 // StreamConsumer Implementation
74 // ----------------------------------------------------------------------
75
76 /** {@inheritDoc} */
77 public void consumeLine( String line )
78 {
79 if( revisionRegexp.match( line ) )
80 {
81 entries.add( revisionRegexp.getParen( 1 ) );
82 }
83 }
84 }