001package org.apache.maven.scm.provider.perforce.command.login;
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 java.util.regex.Pattern;
023
024import org.apache.maven.scm.provider.perforce.command.AbstractPerforceConsumer;
025import org.codehaus.plexus.util.cli.StreamConsumer;
026
027/**
028 * @author Mike Perham
029 * @version $Id: PerforceChangeLogConsumer.java 331276 2005-11-07 15:04:54Z
030 *          evenisse $
031 */
032public class PerforceLoginConsumer
033    extends AbstractPerforceConsumer
034    implements StreamConsumer
035{
036
037    private static final Pattern LOGIN_PATTERN = Pattern.compile( "^User [^ ]+ logged in.$" );
038
039    public static final int STATE_LOGIN = 1;
040
041    public static final int STATE_ERROR = 2;
042
043    private int currentState = STATE_LOGIN;
044
045    /** {@inheritDoc} */
046    public void consumeLine( String line )
047    {
048        if ( line.startsWith( "Enter password:" ) )
049        {
050            return;
051        }
052        if ( currentState != STATE_ERROR && LOGIN_PATTERN.matcher( line ).matches() )
053        {
054            return;
055        }
056
057        error( line );
058    }
059
060    private void error( String line )
061    {
062        currentState = STATE_ERROR;
063        output.println( line );
064    }
065
066    public boolean isSuccess()
067    {
068        return currentState == STATE_LOGIN;
069    }
070}