001package org.apache.maven.scm.provider.svn.svnexe.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 022import org.apache.maven.scm.command.blame.BlameLine; 023import org.apache.maven.scm.log.ScmLogger; 024import org.apache.maven.scm.util.AbstractConsumer; 025 026import java.text.ParseException; 027import java.text.SimpleDateFormat; 028import java.util.ArrayList; 029import java.util.Date; 030import java.util.List; 031import java.util.TimeZone; 032import java.util.regex.Matcher; 033import java.util.regex.Pattern; 034 035/** 036 * @author Evgeny Mandrikov 037 * @author Olivier Lamy 038 * @since 1.4 039 */ 040public class SvnBlameConsumer 041 extends AbstractConsumer 042{ 043 private static final String SVN_TIMESTAMP_PATTERN = "yyyy-MM-dd HH:mm:ss"; 044 045 private static final Pattern LINE_PATTERN = Pattern.compile( "line-number=\"(.*)\"" ); 046 047 private static final Pattern REVISION_PATTERN = Pattern.compile( "revision=\"(.*)\"" ); 048 049 private static final Pattern AUTHOR_PATTERN = Pattern.compile( "<author>(.*)</author>" ); 050 051 private static final Pattern DATE_PATTERN = Pattern.compile( "<date>(.*)T(.*)\\.(.*)Z</date>" ); 052 053 054 private SimpleDateFormat dateFormat; 055 056 private List<BlameLine> lines = new ArrayList<BlameLine>(); 057 058 public SvnBlameConsumer( ScmLogger logger ) 059 { 060 super( logger ); 061 062 dateFormat = new SimpleDateFormat( SVN_TIMESTAMP_PATTERN ); 063 dateFormat.setTimeZone( TimeZone.getTimeZone( "UTC" ) ); 064 } 065 066 private int lineNumber; 067 068 private String revision; 069 070 private String author; 071 072 public void consumeLine( String line ) 073 { 074 Matcher matcher; 075 if ( ( matcher = LINE_PATTERN.matcher( line ) ).find() ) 076 { 077 String lineNumberStr = matcher.group( 1 ); 078 lineNumber = Integer.parseInt( lineNumberStr ); 079 } 080 else if ( ( matcher = REVISION_PATTERN.matcher( line ) ).find() ) 081 { 082 revision = matcher.group( 1 ); 083 } 084 else if ( ( matcher = AUTHOR_PATTERN.matcher( line ) ).find() ) 085 { 086 author = matcher.group( 1 ); 087 } 088 else if ( ( matcher = DATE_PATTERN.matcher( line ) ).find() ) 089 { 090 String date = matcher.group( 1 ); 091 String time = matcher.group( 2 ); 092 Date dateTime = parseDateTime( date + " " + time ); 093 lines.add( new BlameLine( dateTime, revision, author ) ); 094 if ( getLogger().isDebugEnabled() ) 095 { 096 getLogger().debug( "Author of line " + lineNumber + ": " + author + " (" + date + ")" ); 097 } 098 } 099 } 100 101 protected Date parseDateTime( String dateTimeStr ) 102 { 103 try 104 { 105 return dateFormat.parse( dateTimeStr ); 106 } 107 catch ( ParseException e ) 108 { 109 getLogger().error( "skip ParseException: " + e.getMessage() + " during parsing date " + dateTimeStr, e ); 110 return null; 111 } 112 } 113 114 public List<BlameLine> getLines() 115 { 116 return lines; 117 } 118}