package org.apache.maven.scm.provider.jazz.command.blame;

 /*

  * Licensed to the Apache Software Foundation (ASF) under one

  * or more contributor license agreements.  See the NOTICE file

  * distributed with this work for additional information

  * regarding copyright ownership.  The ASF licenses this file

  * to you under the Apache License, Version 2.0 (the

  * "License"); you may not use this file except in compliance

  * with the License.  You may obtain a copy of the License at

  *

  * http://www.apache.org/licenses/LICENSE-2.0

  *

  * Unless required by applicable law or agreed to in writing,

  * software distributed under the License is distributed on an

  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

  * KIND, either express or implied.  See the License for the

  * specific language governing permissions and limitations

  * under the License.

  */

 import org.apache.maven.scm.command.blame.BlameLine;

 import org.apache.maven.scm.log.ScmLogger;

 import org.apache.maven.scm.provider.ScmProviderRepository;

 import org.apache.maven.scm.provider.jazz.command.consumer.AbstractRepositoryConsumer;

 import org.apache.regexp.RE;

 import org.apache.regexp.RESyntaxException;

 import java.text.SimpleDateFormat;

 import java.util.ArrayList;

 import java.util.Date;

 import java.util.List;

 import java.util.TimeZone;

 //STATUS: NOT DONE

 /**

  * Consume the output of the scm command for the "blame" operation.

  *

  * @author <a href="mailto:ChrisGWarp@gmail.com">Chris Graham</a>

  */

 public class JazzBlameConsumer

     extends AbstractRepositoryConsumer

 {

     private static final String JAZZ_TIMESTAMP_PATTERN = "yyyy-MM-dd";

 //  1 Deb (1008) 2011-12-14                       Test.txt

 //  2 Deb (1005) 2011-12-14 59 My commit comment.

     private static final String LINE_PATTERN = "(\\d+) (.*) \\((\\d+)\\) (\\d+-\\d+-\\d+) (.*)";

     /**

      * @see #LINE_PATTERN

      */

     private RE lineRegexp;

     private List<BlameLine> fLines = new ArrayList<BlameLine>();

     private SimpleDateFormat dateFormat;

     /**

      * Construct the JazzBlameCommand consumer.

      *

      * @param repository The repository we are working with.

      * @param logger     The logger to use.

      */

     public JazzBlameConsumer( ScmProviderRepository repository, ScmLogger logger )

     {

         super( repository, logger );

         dateFormat = new SimpleDateFormat( JAZZ_TIMESTAMP_PATTERN );

         dateFormat.setTimeZone( TimeZone.getTimeZone( "UTC" ) );

         try

         {

             lineRegexp = new RE( LINE_PATTERN );

         }

         catch ( RESyntaxException ex )

         {

             throw new RuntimeException(

                 "INTERNAL ERROR: Could not create regexp to parse jazz scm blame output. This shouldn't happen. Something is probably wrong with the oro installation.",

                 ex );

         }

     }

     /**

      * Process one line of output from the execution of the "scm annotate" command.

      *

      * @param line The line of output from the external command that has been pumped to us.

      * @see org.codehaus.plexus.util.cli.StreamConsumer#consumeLine(java.lang.String)

      */

     public void consumeLine( String line )

     {

         super.consumeLine( line );

         if ( lineRegexp.match( line ) )

         {

             String lineNumberStr = lineRegexp.getParen( 1 );

             String owner = lineRegexp.getParen( 2 );

             String changeSetNumberStr = lineRegexp.getParen( 3 );

             String dateStr = lineRegexp.getParen( 4 );

             Date date = parseDate( dateStr, JAZZ_TIMESTAMP_PATTERN, null );

             fLines.add( new BlameLine( date, changeSetNumberStr, owner ) );

         }

     }

     public List<BlameLine> getLines()

     {

         return fLines;

     }

 }