/*
* 2012-3 Red Hat Inc. and/or its affiliates and other contributors.
*
* 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 org.overlord.rtgov.internal.switchyard;
import java.util.EventObject;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.overlord.rtgov.activity.collector.ActivityCollector;
import org.overlord.rtgov.activity.model.ActivityType;
import org.switchyard.event.EventObserver;
/**
* This interface represents an event processor that is used to process
* events observed from applications running on SwitchYard.
*
*/
public abstract class AbstractEventProcessor implements EventObserver, EventProcessor {
private static final Logger LOG=Logger.getLogger(AbstractEventProcessor.class.getName());
private Class<?> _class=null;
private ActivityCollector _collector=null;
/**
* This is the constructor for the abstract event processor.
*
* @param cls The class associated with the processor
*/
public AbstractEventProcessor(Class<?> cls) {
_class = cls;
}
/**
* {@inheritDoc}
*/
public void init(ActivityCollector collector) {
_collector = collector;
}
/**
* {@inheritDoc}
*/
public Class<?> getEventType() {
return (_class);
}
/**
* This method returns the activity collector.
*
* @return The activity collector
*/
protected ActivityCollector getActivityCollector() {
return (_collector);
}
/**
* {@inheritDoc}
*/
public final void notify(EventObject event) {
if (isCollectionEnabled()) {
handleEvent(event);
}
}
/**
* This method handles the event from switchyard.
*
* @param event The event
*/
protected abstract void handleEvent(EventObject event);
/**
* This method determines whether collection has been enabled.
*
* @return Whether collection is enabled
*/
protected boolean isCollectionEnabled() {
return (_collector == null ? false : _collector.isCollectionEnabled());
}
/**
* This method records the activity type.
*
* @param at The activity type
*/
protected void recordActivity(Object event, ActivityType at) {
if (LOG.isLoggable(Level.FINEST)) {
LOG.finest("Record event '"+event+"' as activity type: "+at);
}
getActivityCollector().record(at);
}
}