001package org.apache.maven.scm.provider.perforce.command.diff; 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.codehaus.plexus.util.cli.StreamConsumer; 023 024import java.io.PrintWriter; 025import java.io.StringWriter; 026 027/** 028 * @author Mike Perham 029 */ 030public class PerforceDiffConsumer 031 implements StreamConsumer 032{ 033 private StringWriter out = new StringWriter(); 034 035 private PrintWriter output = new PrintWriter( out ); 036 037 /* 038 * I don't see any easy way to distinguish between an error and 039 * normal diff output. I see two possibilities: 040 * 041 * 1) Use the p4 global "-s" parameter 042 * 2) Check for a non-zero code returned by the p4 process 043 * 044 * We'll do the latter as it's simpler to implement. 045 */ 046 /** {@inheritDoc} */ 047 public void consumeLine( String line ) 048 { 049 output.println( line ); 050 } 051 052 public String getOutput() 053 { 054 output.flush(); 055 out.flush(); 056 return out.toString(); 057 } 058}