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* Licensed to the Apache Software Foundation (ASF) under one
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* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.usergrid.persistence.qakka.serialization.queuemessages.impl;
import com.google.inject.Injector;
import org.apache.commons.lang.RandomStringUtils;
import org.apache.usergrid.persistence.qakka.AbstractTest;
import org.apache.usergrid.persistence.qakka.exceptions.NotFoundException;
import org.apache.usergrid.persistence.qakka.serialization.queuemessages.DatabaseQueueMessage;
import org.apache.usergrid.persistence.qakka.serialization.queuemessages.MessageCounterSerialization;
import org.junit.Assert;
import org.junit.Test;
import java.util.UUID;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
import static org.junit.Assert.fail;
/**
* Created by Dave Johnson (snoopdave@apache.org) on 9/20/16.
*/
public class MessageCounterSerializationTest extends AbstractTest {
@Test
public void testBasicOperation() {
Injector injector = getInjector();
MessageCounterSerialization mcs = injector.getInstance( MessageCounterSerialization.class );
String queueName = "mcst_queue_" + RandomStringUtils.randomAlphanumeric( 20 );
try {
mcs.getCounterValue( queueName, DatabaseQueueMessage.Type.DEFAULT );
fail("Should have throw NotFoundException");
} catch ( NotFoundException expected ) {
// pass
}
for ( int i=0; i<10; i++ ) {
mcs.incrementCounter( queueName, DatabaseQueueMessage.Type.DEFAULT, 1 );
Assert.assertEquals( i+1, mcs.getCounterValue( queueName, DatabaseQueueMessage.Type.DEFAULT ) );
}
mcs.decrementCounter( queueName, DatabaseQueueMessage.Type.DEFAULT, 10 );
Assert.assertEquals( 0, mcs.getCounterValue( queueName, DatabaseQueueMessage.Type.DEFAULT ) );
mcs.incrementCounter( queueName, DatabaseQueueMessage.Type.DEFAULT, 10 );
Assert.assertEquals( 10, mcs.getCounterValue( queueName, DatabaseQueueMessage.Type.DEFAULT ) );
mcs.incrementCounter( queueName, DatabaseQueueMessage.Type.DEFAULT, 10 );
Assert.assertEquals( 20, mcs.getCounterValue( queueName, DatabaseQueueMessage.Type.DEFAULT ) );
mcs.incrementCounter( queueName, DatabaseQueueMessage.Type.DEFAULT, 10 );
Assert.assertEquals( 30, mcs.getCounterValue( queueName, DatabaseQueueMessage.Type.DEFAULT ) );
mcs.incrementCounter( queueName, DatabaseQueueMessage.Type.DEFAULT, 10 );
Assert.assertEquals( 40, mcs.getCounterValue( queueName, DatabaseQueueMessage.Type.DEFAULT ) );
mcs.incrementCounter( queueName, DatabaseQueueMessage.Type.DEFAULT, 10 );
Assert.assertEquals( 50, mcs.getCounterValue( queueName, DatabaseQueueMessage.Type.DEFAULT ) );
mcs.incrementCounter( queueName, DatabaseQueueMessage.Type.DEFAULT, 50 );
Assert.assertEquals( 100, mcs.getCounterValue( queueName, DatabaseQueueMessage.Type.DEFAULT ) );
mcs.decrementCounter( queueName, DatabaseQueueMessage.Type.DEFAULT, 10 );
Assert.assertEquals( 90, mcs.getCounterValue( queueName, DatabaseQueueMessage.Type.DEFAULT ) );
mcs.decrementCounter( queueName, DatabaseQueueMessage.Type.DEFAULT, 10 );
Assert.assertEquals( 80, mcs.getCounterValue( queueName, DatabaseQueueMessage.Type.DEFAULT ) );
mcs.decrementCounter( queueName, DatabaseQueueMessage.Type.DEFAULT, 10 );
Assert.assertEquals( 70, mcs.getCounterValue( queueName, DatabaseQueueMessage.Type.DEFAULT ) );
}
@Test
public void testConcurrentOperation() {
// create multiple threads, each will increment and decrement counter by same number
Injector injector = getInjector();
MessageCounterSerialization mcs = injector.getInstance( MessageCounterSerialization.class );
String queueName = "mtco_queue_" + RandomStringUtils.randomAlphanumeric( 10 );
int poolSize = 20;
int numThreads = 20;
int numCounts = 3000;
ExecutorService execService = Executors.newFixedThreadPool( poolSize );
for (int i = 0; i < numThreads; i++) {
execService.submit( () -> {
for ( int j = 0; j < numCounts; j++ ) {
mcs.incrementCounter( queueName, DatabaseQueueMessage.Type.DEFAULT, 1 );
}
for ( int k = 0; k < numCounts; k++ ) {
mcs.decrementCounter( queueName, DatabaseQueueMessage.Type.DEFAULT, 1 );
}
});
}
execService.shutdown();
try {
while (!execService.awaitTermination( 3, TimeUnit.SECONDS )) {
System.out.println( "Waiting... " +
mcs.getCounterValue( queueName, DatabaseQueueMessage.Type.DEFAULT ) );
}
} catch (InterruptedException e) {
e.printStackTrace();
}
// at end counter should be zero
Assert.assertEquals( 0, mcs.getCounterValue( queueName, DatabaseQueueMessage.Type.DEFAULT ) );
}
}