/**
* 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.concurrent.ScheduledExecutorService;
import org.apache.camel.ContextTestSupport;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.mock.MockEndpoint;
import org.apache.camel.processor.aggregate.AggregateProcessor;
import org.apache.camel.processor.aggregate.UseLatestAggregationStrategy;
/**
* Unit test to verify that aggregate by timeout only also works.
*
* @version
*/
public class AggregateTimeoutWithExecutorServiceTest extends ContextTestSupport {
public static final int NUM_AGGREGATORS = 20;
public void testThreadNotUsedForEveryAggregatorWithCustomExecutorService() throws Exception {
assertTrue("There should not be a thread for every aggregator when using a shared thread pool",
aggregateThreadsCount() < NUM_AGGREGATORS);
// sanity check to make sure were testing routes that work
for (int i = 0; i < NUM_AGGREGATORS; ++i) {
MockEndpoint result = getMockEndpoint("mock:result" + i);
// by default the use latest aggregation strategy is used so we get message 4
result.expectedBodiesReceived("Message 4");
}
for (int i = 0; i < NUM_AGGREGATORS; ++i) {
for (int j = 0; j < 5; j++) {
template.sendBodyAndHeader("direct:start" + i, "Message " + j, "id", "1");
}
}
assertMockEndpointsSatisfied();
}
public static int aggregateThreadsCount() {
int count = 0;
ThreadGroup threadGroup = Thread.currentThread().getThreadGroup();
Thread[] threads = new Thread[threadGroup.activeCount()];
threadGroup.enumerate(threads);
for (Thread thread : threads) {
if (thread.getName().contains(AggregateProcessor.AGGREGATE_TIMEOUT_CHECKER)) {
++count;
}
}
return count;
}
@Override
protected RouteBuilder createRouteBuilder() throws Exception {
return new RouteBuilder() {
@Override
public void configure() throws Exception {
// share 8 threads among the 20 routes
ScheduledExecutorService threadPool = context.getExecutorServiceManager().newScheduledThreadPool(this, "MyThreadPool", 8);
for (int i = 0; i < NUM_AGGREGATORS; ++i) {
from("direct:start" + i)
// aggregate timeout after 3th seconds
.aggregate(header("id"), new UseLatestAggregationStrategy()).completionTimeout(3000).timeoutCheckerExecutorService(threadPool)
.to("mock:result" + i);
}
}
};
}
}