001    package org.apache.maven.scm.provider.perforce.command.tag;
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.List;
024    
025    import org.apache.maven.scm.ScmFile;
026    import org.apache.maven.scm.ScmFileStatus;
027    import org.apache.maven.scm.provider.perforce.command.AbstractPerforceConsumer;
028    import org.apache.regexp.RE;
029    import org.apache.regexp.RESyntaxException;
030    import org.codehaus.plexus.util.cli.StreamConsumer;
031    
032    /**
033     * @author Mike Perham
034     * @author Olivier Lamy
035     *
036     */
037    public class PerforceTagConsumer
038        extends AbstractPerforceConsumer
039        implements StreamConsumer
040    {
041    
042        private static final String LABEL_PATTERN = "^Label ([^ ]+) saved.$";
043    
044        private static final String SYNC_PATTERN = "^([^#]+)#\\d+ - (.*)";
045    
046        public static final int STATE_CREATE = 1;
047    
048        public static final int STATE_SYNC = 2;
049    
050        public static final int STATE_ERROR = 3;
051    
052        private int currentState = STATE_CREATE;
053    
054        private List<ScmFile> tagged = new ArrayList<ScmFile>();
055    
056        private RE syncRegexp;
057    
058        public PerforceTagConsumer()
059        {
060            try
061            {
062                syncRegexp = new RE( SYNC_PATTERN );
063            }
064            catch ( RESyntaxException ignored )
065            {
066                ignored.printStackTrace();
067            }
068        }
069    
070        /**
071         * Return a list of Strings formatted like:
072         * <p/>
073         * <pre>
074         * //depot/modules/cordoba/runtime-ear/pom.xml
075         * //depot/modules/cordoba/runtime-ear/.runtime
076         * </pre>
077         */
078        public List<ScmFile> getTagged()
079        {
080            return tagged;
081        }
082    
083        /*
084         * We consume the output from 'p4 label -i' and 'p4 labelsync -l <tag>
085         * <files...>'
086         */
087        /*
088         * Label maven-scm-test saved.
089         */
090        /*
091         * //depot/modules/cordoba/runtime-ear/pom.xml#4 - added
092         * //depot/modules/cordoba/runtime-ear/.runtime#1 - added
093         */
094        /** {@inheritDoc} */
095        public void consumeLine( String line )
096        {
097            switch ( currentState )
098            {
099                case STATE_CREATE:
100                    if ( !new RE( LABEL_PATTERN ).match( line ) )
101                    {
102                        error( line );
103                        break;
104                    }
105                    currentState = STATE_SYNC;
106                    break;
107                case STATE_SYNC:
108                    if ( !syncRegexp.match( line ) )
109                    {
110                        error( line );
111                        break;
112                    }
113                    tagged.add( new ScmFile( syncRegexp.getParen( 1 ), ScmFileStatus.TAGGED ) );
114                    break;
115                default:
116                    error( line );
117                    break;
118            }
119        }
120    
121        private void error( String line )
122        {
123            currentState = STATE_ERROR;
124            output.println( line );
125        }
126    
127        public boolean isSuccess()
128        {
129            return currentState == STATE_SYNC;
130        }
131    
132    }