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/*******************************************************************************
* ============LICENSE_START=======================================================
* org.onap.dmaap
* ================================================================================
* Copyright © 2017 AT&T Intellectual Property. 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.
* ============LICENSE_END=========================================================
*
* ECOMP is a trademark and service mark of AT&T Intellectual Property.
*
*******************************************************************************/
package com.att.nsa.mr.test.clients;
import java.util.LinkedList;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.att.nsa.mr.client.MRClientFactory;
import com.att.nsa.mr.client.MRConsumer;
public class SampleConsumer {
private SampleConsumer() {
}
public static void main ( String[] args )
{
final Logger log = LoggerFactory.getLogger(SampleConsumer.class);
log.info("Sample Consumer Class executing");
final String topic = "com.att.app.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 () )
{
log.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;
log.info ( "Consumed " + count + " in " + elapsedSec + "; " + eps + " eps" );
}
log.info ( "" + (++count) + ": consumed message" );
}
}
catch ( Exception x )
{
log.error( x.getClass().getName () + ": " + x.getMessage () );
throw new IllegalArgumentException(x);
}
}
}
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