/*
* Created on 24/apr/2010
*
* Copyright 2010 by Andrea Vacondio (andrea.vacondio@gmail.com).
*
* This file is part of the Sejda source code
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.sejda.core.notification.context;
/**
* Local notification context factory. Contains methods to return the {@link NotificationContext} binded to the local thread. Registered listeners on a particular event will be
* notified about events of that type thrown by tasks executed by the current thread.
*
* @author Andrea Vacondio
*
*/
public final class ThreadLocalNotificationContext {
private ThreadLocalNotificationContext() {
// hide
}
private static final ThreadLocal<? extends AbstractNotificationContext> THREAD_LOCAL_CONTEXT = new ThreadLocal<SimpleNotificationContext>() {
@Override
protected SimpleNotificationContext initialValue() {
return new ThreadLocalNotificationContext.SimpleNotificationContext();
}
};
public static NotificationContext getContext() {
return THREAD_LOCAL_CONTEXT.get();
}
/**
* Simple notification context holding a list of listeners as instance attribute.
*
* @author Andrea Vacondio
*
*/
private static class SimpleNotificationContext extends AbstractNotificationContext {
SimpleNotificationContext() {
super(new SimpleEventListenerHoldingStrategy());
}
}
}