/**
* 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.component.mail;
import java.util.HashSet;
import java.util.Set;
import java.util.concurrent.Callable;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
import org.apache.camel.builder.NotifyBuilder;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.test.junit4.CamelTestSupport;
import org.junit.Test;
import org.jvnet.mock_javamail.Mailbox;
/**
* Mail producer concurrent test.
*
* @version
*/
public class MailProducerConcurrentTest extends CamelTestSupport {
@Test
public void testNoConcurrentProducers() throws Exception {
doSendMessages(1, 1);
}
@Test
public void testConcurrentProducers() throws Exception {
doSendMessages(10, 5);
}
private void doSendMessages(int files, int poolSize) throws Exception {
Mailbox.clearAll();
NotifyBuilder builder = new NotifyBuilder(context).whenDone(files).create();
getMockEndpoint("mock:result").expectedMessageCount(files);
getMockEndpoint("mock:result").expectsNoDuplicates(body());
final CountDownLatch latch = new CountDownLatch(files);
ExecutorService executor = Executors.newFixedThreadPool(poolSize);
for (int i = 0; i < files; i++) {
final int index = i;
executor.submit(new Callable<Object>() {
public Object call() throws Exception {
template.sendBodyAndHeader("direct:start", "Message " + index, "To", "someone@localhost");
latch.countDown();
return null;
}
});
}
// wait first for all the exchanges above to be thoroughly sent asynchronously
assertTrue(latch.await(5, TimeUnit.SECONDS));
assertMockEndpointsSatisfied();
assertTrue(builder.matchesMockWaitTime());
Mailbox box = Mailbox.get("someone@localhost");
assertEquals(files, box.size());
// as we use concurrent producers the mails can arrive out of order
Set<Object> bodies = new HashSet<Object>();
for (int i = 0; i < files; i++) {
bodies.add(box.get(i).getContent());
}
assertEquals("There should be " + files + " unique mails", files, bodies.size());
executor.shutdownNow();
}
@Override
protected RouteBuilder createRouteBuilder() throws Exception {
return new RouteBuilder() {
@Override
public void configure() throws Exception {
from("direct:start").to("smtp://camel@localhost", "mock:result");
}
};
}
}