/*
* Copyright 2013 Rackspace
*
* 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.rackspacecloud.blueflood.eventemitter;
import com.rackspacecloud.blueflood.concurrent.ThreadPoolBuilder;
import com.rackspacecloud.blueflood.types.BasicRollup;
import java.util.concurrent.*;
public class RollupEventEmitter extends Emitter<RollupEvent> {
private static final int numberOfWorkers = 5;
public static final String ROLLUP_EVENT_NAME = "rollup".intern();
private static ThreadPoolExecutor eventExecutors;
private static final RollupEventEmitter instance = new RollupEventEmitter();
private RollupEventEmitter() {
eventExecutors = new ThreadPoolBuilder()
.withName("RollupEventEmitter ThreadPool")
.withCorePoolSize(numberOfWorkers)
.withMaxPoolSize(numberOfWorkers)
.withUnboundedQueue()
.build();
}
public static RollupEventEmitter getInstance() { return instance; }
@Override
public Future emit(final String event, final RollupEvent... eventPayload) {
//TODO: This hack will go away after Kafka Serializer is made generic
if(eventPayload[0].getRollup() instanceof BasicRollup) {
return eventExecutors.submit(new Runnable() {
@Override
public void run() {
RollupEventEmitter.super.emit(event, eventPayload);
}
});
}
return null;
}
}