/*
* IzPack - Copyright 2001-2008 Julien Ponge, All Rights Reserved.
*
* http://izpack.org/
* http://izpack.codehaus.org/
*
* Copyright 2004 Klaus Bartz
*
* 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.event;
import com.izforge.izpack.util.AbstractUIProgressHandler;
import com.izforge.izpack.util.IoHelper;
import java.io.File;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
/**
* Uninstaller listener for performing ANT actions at uninstall time. The definition of what should
* be done here will be made in a specification file that is referenced by the resource id
* "AntActionsSpec.xml". There should be an entry in the install.xml file in the sub ELEMENT "res"
* of ELEMENT "resources" that references it. The specification of the xml file is done in the DTD
* antaction.dtd. The xml file may contain an ELEMENT "uninstall_target" that should be performed
* for uninstalling purposes.
*
* @author Klaus Bartz
*/
public class AntActionUninstallerListener extends SimpleUninstallerListener
{
/**
* Ant actions to be performed after deletion
*/
private List<AntAction> antActions = null;
/**
* Default constructor
*/
public AntActionUninstallerListener()
{
super();
// TODO Auto-generated constructor stub
}
/*
* (non-Javadoc)
*
* @see com.izforge.izpack.uninstaller.UninstallerListener#beforeDeletion(java.util.List,
* com.izforge.izpack.util.AbstractUIProgressHandler)
*/
public void beforeDeletion(List files, AbstractUIProgressHandler handler) throws Exception
{
// Load the defined actions.
InputStream in = getClass().getResourceAsStream("/antActions");
if (in == null)
{ // No actions, nothing todo.
return;
}
ObjectInputStream objIn = new ObjectInputStream(in);
// The actions are stored at installation time as list of AntAction
// objects.
// See AntActionInstallerListener.afterPacks.
List allActions = (List) objIn.readObject();
objIn.close();
in.close();
ArrayList<AntAction> befDel = new ArrayList<AntAction>();
antActions = new ArrayList<AntAction>();
Iterator iter = allActions.iterator();
// There are two possible orders; before and after deletion.
// Now we assign the actions to two different lists, the
// local "before" list which we perform after the scan and
// the class member "antActions" which should contain the
// "afterdeletion" actions. Additionally we should save needed
// files like the properties file for this order because if they're
// part of the pack the'll be lost after the deletion has been
// performed.
while (iter.hasNext())
{
AntAction action = (AntAction) iter.next();
//
if (action.getUninstallOrder().equals(ActionBase.BEFOREDELETION))
{
befDel.add(action);
}
else
{// We need the build and the properties file(s) outside the
// install dir.
File tmpFile = IoHelper.copyToTempFile(action.getBuildFile(), ".xml");
action.setBuildFile(tmpFile.getCanonicalPath());
List<String> props = action.getPropertyFiles();
if (props != null)
{
Iterator<String> iter2 = props.iterator();
ArrayList<String> newProps = new ArrayList<String>();
while (iter2.hasNext())
{
String propName = iter2.next();
File propFile = IoHelper.copyToTempFile(propName, ".properties");
newProps.add(propFile.getCanonicalPath());
}
action.setPropertyFiles(newProps);
}
antActions.add(action);
}
}
// Perform the actions with the order "beforedeletion".
if (befDel.size() > 0)
{
for (AntAction act : befDel)
{
act.performUninstallAction();
}
}
}
/*
* (non-Javadoc)
*
* @see com.izforge.izpack.uninstaller.UninstallerListener#afterDeletion(java.util.List,
* com.izforge.izpack.util.AbstractUIProgressHandler)
*/
public void afterDeletion(List files, AbstractUIProgressHandler handler) throws Exception
{
if (antActions != null && antActions.size() > 0)
{ // There are actions of the order "afterdeletion".
for (AntAction act : antActions)
{
act.performUninstallAction();
}
}
}
}