org.eclipse.swordfish.core.event.EventHandlerAdapter.java Source code

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Here is the source code for org.eclipse.swordfish.core.event.EventHandlerAdapter.java

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/*******************************************************************************
 * Copyright (c) 2008, 2009 SOPERA GmbH.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *     SOPERA GmbH - initial API and implementation
 *******************************************************************************/
package org.eclipse.swordfish.core.event;

import org.eclipse.swordfish.api.event.Event;
import org.eclipse.swordfish.api.event.EventHandler;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.util.Assert;

public class EventHandlerAdapter<T extends Event> implements org.osgi.service.event.EventHandler {
    private final Logger LOG = LoggerFactory.getLogger(EventHandlerAdapter.class);

    protected EventHandler<T> delegate;

    public EventHandlerAdapter() {

    }

    public EventHandlerAdapter(EventHandler<T> eventListener) {
        delegate = eventListener;
    }

    public void handleEvent(org.osgi.service.event.Event event) {
        Assert.notNull(delegate, "The EventListener delegate must be supplied");
        Event swordfishEvent = (Event) event.getProperty(org.osgi.service.event.EventConstants.EVENT);
        Assert.notNull(swordfishEvent, "The swordfish event must be supplied");
        delegate.handleEvent((T) swordfishEvent);
    }
}