001package org.apache.maven.scm.provider.git.gitexe.command; 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.ScmFile; 023import org.apache.maven.scm.log.ScmLogger; 024import org.codehaus.plexus.util.cli.StreamConsumer; 025 026import java.io.File; 027import java.util.ArrayList; 028import java.util.Iterator; 029import java.util.List; 030 031/** 032 * @author <a href="mailto:kenney@apache.org">Kenney Westerhof</a> 033 * @author Olivier Lamy 034 * 035 */ 036public abstract class AbstractFileCheckingConsumer 037 implements StreamConsumer 038{ 039 protected ScmLogger logger; 040 041 protected File workingDirectory; 042 043 private List<ScmFile> files = new ArrayList<ScmFile>(); 044 045 protected int revision; 046 047 private boolean filtered; 048 049 public AbstractFileCheckingConsumer( ScmLogger logger, File workingDirectory ) 050 { 051 this.logger = logger; 052 this.workingDirectory = workingDirectory; 053 } 054 055 /** {@inheritDoc} */ 056 public final void consumeLine( String line ) 057 { 058 if ( line.length() <= 3 ) 059 { 060 return; 061 } 062 063 if ( logger.isDebugEnabled() ) 064 { 065 logger.debug( line ); 066 } 067 068 parseLine( line ); 069 } 070 071 protected abstract void parseLine( String line ); 072 073 protected List<ScmFile> getFiles() 074 { 075 if ( !filtered ) 076 { 077 for ( Iterator<ScmFile> it = files.iterator(); it.hasNext(); ) 078 { 079 if ( !new File( workingDirectory, it.next().getPath() ).isFile() ) 080 { 081 it.remove(); 082 } 083 } 084 085 filtered = true; 086 } 087 088 return files; 089 } 090 091 protected final int parseInt( String revisionString ) 092 { 093 try 094 { 095 return Integer.parseInt( revisionString ); 096 } 097 catch ( NumberFormatException ex ) 098 { 099 return 0; 100 } 101 } 102 103 protected void addFile( ScmFile file ) 104 { 105 files.add( file ); 106 } 107 108 public final int getRevision() 109 { 110 return revision; 111 } 112 113}