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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.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.List;
import java.util.UUID;
import java.util.concurrent.TimeUnit;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.att.nsa.mr.client.MRBatchingPublisher;
import com.att.nsa.mr.client.MRClientFactory;
import com.att.nsa.mr.client.MRPublisher.message;
/**
* A simple publisher that reads from std in, sending each line as a message.
* @author author
*/
public class ConsolePublisher
{
private static final Logger logger = LoggerFactory.getLogger(ConsolePublisher.class);
private ConsolePublisher() {
}
public static void main ( String[] args ) throws IOException //throws IOException, InterruptedException
{
// read the hosts(s) from the command line
final String hosts = args.length > 0 ? args[0] : "aaa.it.att.com,bbb.it.att.com,ccc.it.att.com";
// read the topic name from the command line
final String topic = args.length > 1 ? args[1] : "TEST-TOPIC";
// read the topic name from the command line
final String partition = args.length > 2 ? args[2] : UUID.randomUUID ().toString ();
// set up some batch limits and the compression flag
final int maxBatchSize = 100;
final long maxAgeMs = 250;
final boolean withGzip = false;
// create our publisher
final MRBatchingPublisher pub = MRClientFactory.createBatchingPublisher ( hosts, topic, maxBatchSize, maxAgeMs, withGzip );
final BufferedReader cin = new BufferedReader ( new InputStreamReader ( System.in ) );
try
{
String line = null;
while ( ( line = cin.readLine () ) != null )
{
pub.send ( partition, line );
}
}
finally
{
List<message> leftovers = null;
try
{
leftovers = pub.close ( 10, TimeUnit.SECONDS );
}
catch ( InterruptedException e )
{
logger.error( "Send on close interrupted." );
Thread.currentThread().interrupt();
}
for ( message m : leftovers )
{
logger.error( "Unsent message: " + m.fMsg );
}
}
}
}
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