001    package org.apache.maven.scm.provider.cvslib.cvsjava.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 org.apache.maven.scm.command.blame.BlameScmResult;
023    import org.apache.maven.scm.provider.cvslib.command.blame.AbstractCvsBlameCommand;
024    import org.apache.maven.scm.provider.cvslib.command.blame.CvsBlameConsumer;
025    import org.apache.maven.scm.provider.cvslib.cvsjava.util.CvsConnection;
026    import org.apache.maven.scm.provider.cvslib.cvsjava.util.CvsLogListener;
027    import org.apache.maven.scm.provider.cvslib.repository.CvsScmProviderRepository;
028    import org.codehaus.plexus.util.cli.Commandline;
029    
030    import java.io.BufferedReader;
031    import java.io.ByteArrayInputStream;
032    import java.io.InputStreamReader;
033    
034    /**
035     * @author Evgeny Mandrikov
036     * @since 1.4
037     */
038    public class CvsJavaBlameCommand
039        extends AbstractCvsBlameCommand
040    {
041        /**
042         * {@inheritDoc}
043         */
044        protected BlameScmResult executeCvsCommand( Commandline cl, CvsScmProviderRepository repository )
045        {
046            CvsLogListener logListener = new CvsLogListener();
047            CvsBlameConsumer consumer = new CvsBlameConsumer( getLogger() );
048            try
049            {
050                boolean isSuccess =
051                    CvsConnection.processCommand( cl.getArguments(), cl.getWorkingDirectory().getAbsolutePath(),
052                                                  logListener, getLogger() );
053                if ( !isSuccess )
054                {
055                    return new BlameScmResult( cl.toString(), "The cvs command failed.", logListener.getStderr().toString(),
056                                               false );
057                }
058                BufferedReader stream = new BufferedReader(
059                    new InputStreamReader( new ByteArrayInputStream( logListener.getStdout().toString().getBytes() ) ) );
060                String line;
061                while ( ( line = stream.readLine() ) != null )
062                {
063                    consumer.consumeLine( line );
064                }
065            }
066            catch ( Exception e )
067            {
068                getLogger().error( e );
069                return new BlameScmResult( cl.toString(), "The cvs command failed.", logListener.getStdout().toString(),
070                                           false );
071            }
072    
073            return new BlameScmResult( cl.toString(), consumer.getLines() );
074        }
075    }