| /** |
| * 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.disruptor; |
| |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.apache.camel.builder.RouteBuilder; |
| import org.apache.camel.test.junit4.CamelTestSupport; |
| import org.junit.Test; |
| |
| /** |
| * @version |
| */ |
| public class DisruptorReconfigureWithBlockingProducer extends CamelTestSupport { |
| |
| @Test |
| public void testDisruptorReconfigureWithBlockingProducer() throws Exception { |
| getMockEndpoint("mock:a").expectedMessageCount(20); |
| getMockEndpoint("mock:b").expectedMinimumMessageCount(10); |
| |
| long beforeStart = System.currentTimeMillis(); |
| ProducerThread producerThread = new ProducerThread(); |
| producerThread.start(); |
| |
| //synchronize with the producer to the point that the buffer is full |
| assertTrue(producerThread.awaitFullBufferProduced()); |
| |
| context.addRoutes(new RouteBuilder() { |
| @Override |
| public void configure() throws Exception { |
| from("disruptor:foo?multipleConsumers=true&size=8").id("testRoute").to("mock:b"); |
| } |
| }); |
| |
| // adding the consumer may take place after the current buffer is flushed |
| // which will take approximately 8*200=1600 ms because of delay on route. |
| // If the reconfigure does not correctly hold back the producer thread on this request, |
| // it will take approximately 20*200=4000 ms. |
| // be on the safe side and check that it was at least faster than 2 seconds. |
| assertTrue("Reconfigure of Disruptor blocked", (System.currentTimeMillis() - beforeStart) < 2000); |
| |
| //Wait and check that the producer has produced all messages without throwing an exception |
| assertTrue(producerThread.checkResult()); |
| assertMockEndpointsSatisfied(); |
| } |
| |
| @Override |
| protected RouteBuilder createRouteBuilder() throws Exception { |
| return new RouteBuilder() { |
| @Override |
| public void configure() throws Exception { |
| from("disruptor:foo?multipleConsumers=true&size=8").delay(200).to("mock:a"); |
| } |
| }; |
| } |
| |
| private class ProducerThread extends Thread { |
| private final CountDownLatch startedLatch = new CountDownLatch(1); |
| private final CountDownLatch resultLatch = new CountDownLatch(1); |
| private Exception exception; |
| |
| @Override |
| public void run() { |
| for (int i = 0; i < 8; i++) { |
| template.sendBody("disruptor:foo", "Message"); |
| } |
| |
| startedLatch.countDown(); |
| |
| try { |
| for (int i = 0; i < 12; i++) { |
| template.sendBody("disruptor:foo", "Message"); |
| } |
| } catch (Exception e) { |
| exception = e; |
| } |
| |
| resultLatch.countDown(); |
| } |
| |
| public boolean awaitFullBufferProduced() throws InterruptedException { |
| return startedLatch.await(5, TimeUnit.SECONDS); |
| } |
| |
| public boolean checkResult() throws Exception { |
| if (exception != null) { |
| throw exception; |
| } |
| boolean result = resultLatch.await(5, TimeUnit.SECONDS); |
| if (exception != null) { |
| throw exception; |
| } |
| |
| return result; |
| } |
| } |
| } |