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/*******************************************************************************
* ============LICENSE_START=======================================================
* org.onap.dmaap
* ================================================================================
* Copyright © 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Modifications Copyright © 2021 Orange.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*
* ECOMP is a trademark and service mark of AT&T Intellectual Property.
*
*******************************************************************************/
package org.onap.dmaap.mr.test.clients;
import org.onap.dmaap.mr.client.MRClientFactory;
import org.onap.dmaap.mr.client.MRConsumer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.LinkedList;
public class SampleConsumer {
private SampleConsumer() {
}
public static void main(String[] args) {
final Logger logger = LoggerFactory.getLogger(SampleConsumer.class);
logger.info("Sample Consumer Class executing");
final String topic = "org.onap.dmaap.mr.testingTopic";
final String url = (args.length > 1 ? args[1] : "localhost:8181");
final String group = (args.length > 2 ? args[2] : "grp");
final String id = (args.length > 3 ? args[3] : "1");
long count = 0;
long nextReport = 5000;
final long startMs = System.currentTimeMillis();
final LinkedList<String> urlList = new LinkedList<>();
for (String u : url.split(",")) {
urlList.add(u);
}
final MRConsumer cc = MRClientFactory.createConsumer(urlList, topic, group, id, 10 * 1000, 1000, null, "CG0TXc2Aa3v8LfBk", "pj2rhxJWKP23pgy8ahMnjH88");
try {
while (true) {
for (String msg : cc.fetch()) {
logger.info("" + (++count) + ": " + msg);
}
if (count > nextReport) {
nextReport += 5000;
final long endMs = System.currentTimeMillis();
final long elapsedMs = endMs - startMs;
final double elapsedSec = elapsedMs / 1000.0;
final double eps = count / elapsedSec;
logger.info("Consumed " + count + " in " + elapsedSec + "; " + eps + " eps");
}
logger.info("" + (++count) + ": consumed message");
}
} catch (Exception x) {
logger.error(x.getClass().getName() + ": " + x.getMessage());
throw new IllegalArgumentException(x);
}
}
}
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