/*
* org.openmicroscopy.shoola.env.init.FakeInitializer
*
*------------------------------------------------------------------------------
* Copyright (C) 2006 University of Dundee. All rights reserved.
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*------------------------------------------------------------------------------
*/
package org.openmicroscopy.shoola.env.init;
//Java imports
//Third-party libraries
//Application-internal dependencies
/**
* Allows to replace container's initialization tasks before the container
* is started.
* This is key in testing environments because intialization tasks can be
* replaced with tasks that provide service stubs to remove problematic
* dependencies on external resources.
*
* @author Jean-Marie Burel
* <a href="mailto:j.burel@dundee.ac.uk">j.burel@dundee.ac.uk</a>
* @author <br>Andrea Falconi
* <a href="mailto:a.falconi@dundee.ac.uk">
* a.falconi@dundee.ac.uk</a>
* @version 2.2
* <small>
* (<b>Internal version:</b> $Revision$ $Date$)
* </small>
* @since OME2.2
*/
public class FakeInitializer
extends Initializer
{
/**
* Replaces the specified container's intialization tasks
* with a new one.
* To be effective, this method has to be called before the
* <code>startupInTestMode</code> method of the container is
* invoked.
*
* @param oldTaskType One of the classes defined in <code>env.init</code>.
* @param newTaskType The class that will replace the above task during
* the initialization sequence.
* @return <code>true</code> if the old task can be replaced by the new
* one, <code>false</code> otherwise.
*/
public static boolean replaceInitTask(Class oldTaskType, Class newTaskType)
{
if (oldTaskType == null) throw new NullPointerException();
if (newTaskType == null) throw new NullPointerException();
boolean replaced = false;
for (int i = 0; i < initList.size(); ++i) {
if (oldTaskType.equals(initList.get(i))) {
initList.set(i, newTaskType);
replaced = true;
break;
}
}
return replaced;
}
}