001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 */ 019package org.apache.maven.scm.provider.svn.svnexe.command.blame; 020 021import java.text.ParseException; 022import java.text.SimpleDateFormat; 023import java.util.ArrayList; 024import java.util.Date; 025import java.util.List; 026import java.util.TimeZone; 027import java.util.regex.Matcher; 028import java.util.regex.Pattern; 029 030import org.apache.maven.scm.command.blame.BlameLine; 031import org.apache.maven.scm.util.AbstractConsumer; 032 033/** 034 * @author Evgeny Mandrikov 035 * @author Olivier Lamy 036 * @since 1.4 037 */ 038public class SvnBlameConsumer extends AbstractConsumer { 039 private static final String SVN_TIMESTAMP_PATTERN = "yyyy-MM-dd HH:mm:ss"; 040 041 private static final Pattern LINE_PATTERN = Pattern.compile("line-number=\"(.*)\""); 042 043 private static final Pattern REVISION_PATTERN = Pattern.compile("revision=\"(.*)\""); 044 045 private static final Pattern AUTHOR_PATTERN = Pattern.compile("<author>(.*)</author>"); 046 047 private static final Pattern DATE_PATTERN = Pattern.compile("<date>(.*)T(.*)\\.(.*)Z</date>"); 048 049 private final SimpleDateFormat dateFormat; 050 051 private final List<BlameLine> lines = new ArrayList<>(); 052 053 public SvnBlameConsumer() { 054 dateFormat = new SimpleDateFormat(SVN_TIMESTAMP_PATTERN); 055 dateFormat.setTimeZone(TimeZone.getTimeZone("UTC")); 056 } 057 058 private int lineNumber; 059 060 private String revision; 061 062 private String author; 063 064 public void consumeLine(String line) { 065 Matcher matcher; 066 if ((matcher = LINE_PATTERN.matcher(line)).find()) { 067 String lineNumberStr = matcher.group(1); 068 lineNumber = Integer.parseInt(lineNumberStr); 069 } else if ((matcher = REVISION_PATTERN.matcher(line)).find()) { 070 revision = matcher.group(1); 071 } else if ((matcher = AUTHOR_PATTERN.matcher(line)).find()) { 072 author = matcher.group(1); 073 } else if ((matcher = DATE_PATTERN.matcher(line)).find()) { 074 String date = matcher.group(1); 075 String time = matcher.group(2); 076 Date dateTime = parseDateTime(date + " " + time); 077 lines.add(new BlameLine(dateTime, revision, author)); 078 if (logger.isDebugEnabled()) { 079 logger.debug("Author of line " + lineNumber + ": " + author + " (" + date + ")"); 080 } 081 } 082 } 083 084 protected Date parseDateTime(String dateTimeStr) { 085 try { 086 return dateFormat.parse(dateTimeStr); 087 } catch (ParseException e) { 088 logger.error("skip ParseException: " + e.getMessage() + " during parsing date " + dateTimeStr, e); 089 return null; 090 } 091 } 092 093 public List<BlameLine> getLines() { 094 return lines; 095 } 096}