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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2018 Ericsson. All rights reserved.
* ================================================================================
* 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.policy.apex.service.engine.benchmark;
import static org.junit.Assert.assertNull;
import java.util.Queue;
import java.util.concurrent.ConcurrentLinkedQueue;
import java.util.concurrent.atomic.AtomicLong;
import org.onap.policy.apex.service.engine.event.ApexEvent;
import org.onap.policy.apex.service.engine.runtime.ApexEventListener;
import org.slf4j.ext.XLogger;
import org.slf4j.ext.XLoggerFactory;
public class TestApexEventListener implements ApexEventListener {
private static final String SENT_TIMESTAMP = "SentTimestamp";
private static final XLogger LOGGER = XLoggerFactory.getXLogger(TestApexEventListener.class);
private static final String RECVD_TIMESTAMP = "RecvdTimestamp";
private Queue<ApexEvent> queue;
private final AtomicLong eventReceived = new AtomicLong();
public TestApexEventListener() {
this.queue = new ConcurrentLinkedQueue<ApexEvent>();
}
@Override
public void onApexEvent(final ApexEvent apexEvent) {
apexEvent.put(RECVD_TIMESTAMP, System.currentTimeMillis());
eventReceived.incrementAndGet();
queue.add(apexEvent);
}
public void printResult() {
if (!queue.isEmpty()) {
long maxTimeInMilliSeconds = 0;
long minTimeInMilliSeconds = Long.MAX_VALUE;
final long numEvents = queue.size();
long totalTimeInMilliSeconds = 0;
for (final ApexEvent apexEvent : queue) {
assertNull(apexEvent.getExceptionMessage());
final Long endTimeInMilliSeconds = (Long) apexEvent.get(RECVD_TIMESTAMP);
final Long startTimeInMilliSeconds = (Long) apexEvent.get(SENT_TIMESTAMP);
final long timeTaken = endTimeInMilliSeconds - startTimeInMilliSeconds;
totalTimeInMilliSeconds += timeTaken;
if (timeTaken > maxTimeInMilliSeconds) {
maxTimeInMilliSeconds = timeTaken;
}
if (timeTaken < minTimeInMilliSeconds) {
minTimeInMilliSeconds = timeTaken;
}
}
LOGGER.info("Average Time Taken to process {} events: {} ms", numEvents,
(totalTimeInMilliSeconds / numEvents));
LOGGER.info("Max Time Taken: {} ms", maxTimeInMilliSeconds);
LOGGER.info("Min Time Taken: {} ms", minTimeInMilliSeconds);
}
}
public void reset() {
this.queue = new ConcurrentLinkedQueue<ApexEvent>();
eventReceived.set(0);;
}
public Queue<ApexEvent> getQueue() {
return queue;
}
public long getEventReceived() {
return eventReceived.get();
}
}
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