/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file 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.camel.processor.aggregator;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.atomic.AtomicInteger;
import org.apache.camel.ContextTestSupport;
import org.apache.camel.Exchange;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.mock.MockEndpoint;
import org.apache.camel.processor.aggregate.AggregationStrategy;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* @version $Revision: 895965 $
*/
public class AggregatorConcurrencyTest extends ContextTestSupport {
private static final transient Log LOG = LogFactory.getLog(AggregatorConcurrencyTest.class);
private static final AtomicInteger COUNTER = new AtomicInteger(0);
private static final AtomicInteger SUM = new AtomicInteger(0);
private final int size = 100;
private final String uri = "direct:start";
public void testAggregateConcurrency() throws Exception {
int total = 0;
ExecutorService service = Executors.newFixedThreadPool(20);
List<Callable<Object>> tasks = new ArrayList<Callable<Object>>();
for (int i = 0; i < size; i++) {
final int count = i;
total += i;
tasks.add(new Callable<Object>() {
public Object call() throws Exception {
template.sendBodyAndHeader(uri, "Hello World", "index", count);
return null;
}
});
}
MockEndpoint mock = getMockEndpoint("mock:result");
mock.expectedMessageCount(1);
mock.expectedBodiesReceived(total);
mock.expectedHeaderReceived("total", total);
mock.expectedPropertyReceived(Exchange.AGGREGATED_SIZE, size);
// submit all tasks
service.invokeAll(tasks);
assertMockEndpointsSatisfied();
assertEquals(100, COUNTER.get());
}
@Override
protected RouteBuilder createRouteBuilder() throws Exception {
return new RouteBuilder() {
public void configure() throws Exception {
from(uri)
.aggregate(constant(true), new AggregationStrategy() {
public Exchange aggregate(Exchange oldExchange, Exchange newExchange) {
Exchange answer = oldExchange != null ? oldExchange : newExchange;
COUNTER.getAndIncrement();
Integer newIndex = newExchange.getIn().getHeader("index", Integer.class);
int total = SUM.addAndGet(newIndex);
answer.getIn().setHeader("total", total);
LOG.debug("Index: " + newIndex + ". Total so far: " + total);
return answer;
}
}).batchTimeout(60000).completionPredicate(property(Exchange.AGGREGATED_SIZE).isEqualTo(100))
.to("direct:foo");
from("direct:foo").setBody().header("total").to("mock:result");
}
};
}
}