com.izforge.izpack.installer.UnpackerFactory Maven / Gradle / Ivy
/*
* IzPack - Copyright 2001-2008 Julien Ponge, All Rights Reserved.
*
* http://izpack.org/
* http://izpack.codehaus.org/
*
* Copyright 2007 Dennis Reil
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.izforge.izpack.installer;
import com.izforge.izpack.util.AbstractUIProgressHandler;
import com.izforge.izpack.util.Debug;
import java.lang.reflect.Constructor;
/**
* A Factory for getting unpacker instances.
*
* @author Dennis Reil,
*/
public abstract class UnpackerFactory
{
/**
* Returns an instance of the desired unpacker class
*
* @param unpackerclassname
* @param installdata
* @param listener
* @return the unpacker
*/
public static IUnpacker getUnpacker(String unpackerclassname, AutomatedInstallData installdata, AbstractUIProgressHandler listener)
{
IUnpacker unpackerobj = null;
try
{
Class unpackerclass = (Class) Class.forName(unpackerclassname);
Class[] parametertypes = {AutomatedInstallData.class, AbstractUIProgressHandler.class};
Constructor unpackerconstructor = unpackerclass.getConstructor(parametertypes);
Object[] parameter = {installdata, listener};
unpackerobj = unpackerconstructor.newInstance(parameter);
}
catch (NoSuchMethodException e)
{
Debug.trace("Can't load unpacker: " + unpackerclassname);
Debug.trace("Unpacker doesn't implement the desired method");
Debug.trace(e);
}
catch (Exception e)
{
Debug.trace("Can't load unpacker: " + unpackerclassname);
Debug.trace(e);
}
return unpackerobj;
}
}