| /** |
| * 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; |
| |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| |
| import org.apache.camel.ContextTestSupport; |
| import org.apache.camel.builder.RouteBuilder; |
| import org.apache.camel.component.mock.MockEndpoint; |
| |
| /** |
| * @version |
| */ |
| public class ThrottlerAsyncDelayedTest extends ContextTestSupport { |
| private static final int INTERVAL = 500; |
| protected int messageCount = 9; |
| |
| public void testSendLotsOfMessagesButOnly3GetThrough() throws Exception { |
| MockEndpoint resultEndpoint = resolveMandatoryEndpoint("mock:result", MockEndpoint.class); |
| resultEndpoint.expectedMessageCount(3); |
| resultEndpoint.setResultWaitTime(5000); |
| |
| for (int i = 0; i < messageCount; i++) { |
| template.sendBody("seda:a", "<message>" + i + "</message>"); |
| } |
| |
| // lets pause to give the requests time to be processed |
| // to check that the throttle really does kick in |
| resultEndpoint.assertIsSatisfied(); |
| } |
| |
| public void testSendLotsOfMessagesSimultaneouslyButOnly3GetThrough() throws Exception { |
| long start = System.currentTimeMillis(); |
| MockEndpoint resultEndpoint = resolveMandatoryEndpoint("mock:result", MockEndpoint.class); |
| resultEndpoint.expectedMessageCount(messageCount); |
| |
| ExecutorService executor = Executors.newFixedThreadPool(messageCount); |
| for (int i = 0; i < messageCount; i++) { |
| executor.execute(new Runnable() { |
| public void run() { |
| template.sendBody("direct:a", "<message>payload</message>"); |
| } |
| }); |
| } |
| |
| // let's wait for the exchanges to arrive |
| resultEndpoint.assertIsSatisfied(); |
| |
| // now assert that they have actually been throttled |
| long minimumTime = (messageCount - 1) * INTERVAL; |
| // add a little slack |
| long delta = System.currentTimeMillis() - start + 200; |
| assertTrue("Should take at least " + minimumTime + "ms, was: " + delta, delta >= minimumTime); |
| executor.shutdownNow(); |
| } |
| |
| protected RouteBuilder createRouteBuilder() { |
| return new RouteBuilder() { |
| public void configure() { |
| // START SNIPPET: ex |
| from("seda:a").throttle(3).timePeriodMillis(10000).asyncDelayed().to("log:result", "mock:result"); |
| // END SNIPPET: ex |
| |
| from("direct:a").throttle(1).timePeriodMillis(INTERVAL).asyncDelayed().to("log:result", "mock:result"); |
| } |
| }; |
| } |
| } |