package org.apache.maven.scm.provider.perforce.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.log.ScmLogger;
  import org.apache.maven.scm.util.AbstractConsumer;
  import org.apache.regexp.RE;
  
  import java.util.Date;
  import java.util.HashMap;
  import java.util.Map;
  
  /**
   * @author Evgeny Mandrikov
   * @since 1.4
   */
  public class PerforceFilelogConsumer
      extends AbstractConsumer
  {
      private static final String PERFORCE_TIMESTAMP_PATTERN = "yyyy/MM/dd";
  
      private static final String LINE_PATTERN = "#(\\d+).*on (.*) by (.*)@";
  
      private RE lineRegexp;
  
      private Map<String, Date> dates = new HashMap<String,Date>();
  
      private Map<String,String> authors = new HashMap<String,String>();
  
      public PerforceFilelogConsumer( ScmLogger logger )
      {
          super( logger );
          lineRegexp = new RE( LINE_PATTERN );
      }
  
      /** {@inheritDoc} */
      public void consumeLine( String line )
      {
          if ( lineRegexp.match( line ) )
          {
              String revision = lineRegexp.getParen( 1 );
              String dateTimeStr = lineRegexp.getParen( 2 );
              String author = lineRegexp.getParen( 3 );
  
              Date dateTime = parseDate( dateTimeStr, null, PERFORCE_TIMESTAMP_PATTERN );
  
              dates.put( revision, dateTime );
              authors.put( revision, author );
          }
      }
  
      public String getAuthor( String revision )
      {
          return (String) authors.get( revision );
      }
  
      public Date getDate( String revision )
      {
          return (Date) dates.get( revision );
      }
  }