001/*
002 * IzPack - Copyright 2001-2005 Julien Ponge, All Rights Reserved.
003 * 
004 * http://www.izforge.com/izpack/
005 * http://developer.berlios.de/projects/izpack/
006 * 
007 * Copyright 2002 Olexij Tkatchenko
008 * 
009 * Licensed under the Apache License, Version 2.0 (the "License");
010 * you may not use this file except in compliance with the License.
011 * You may obtain a copy of the License at
012 * 
013 *     http://www.apache.org/licenses/LICENSE-2.0
014 *     
015 * Unless required by applicable law or agreed to in writing, software
016 * distributed under the License is distributed on an "AS IS" BASIS,
017 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
018 * See the License for the specific language governing permissions and
019 * limitations under the License.
020 */
021
022package com.izforge.izpack.util;
023
024/**
025 * Interface for UIs which need to interface to external processes.
026 * 
027 * @author tisc
028 */
029public interface AbstractUIProcessHandler extends AbstractUIHandler
030{
031
032    /**
033     * Log the given message.
034     * 
035     * @param message
036     * @param stderr true if this is a message received from a program via stderr
037     */
038    public void logOutput(String message, boolean stderr);
039
040    public void startProcessing(int no_of_processes);
041
042    /**
043     * Notify the user that a process has started.
044     * 
045     * @param name
046     */
047    public void startProcess(String name);
048
049    public void finishProcess();
050
051    public void finishProcessing();
052}