Java tutorial
/** * 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 com.apachecon.camel.filesplit; import java.util.concurrent.CountDownLatch; import java.util.concurrent.TimeUnit; import org.apache.camel.component.properties.PropertiesComponent; import org.apache.camel.test.junit4.CamelSpringTestSupport; import org.junit.Test; import org.springframework.context.support.ClassPathXmlApplicationContext; import com.apachecon.camel.filesplit.SplitCounterProcessor; public class FileSplitTest extends CamelSpringTestSupport { @Override protected ClassPathXmlApplicationContext createApplicationContext() { return new ClassPathXmlApplicationContext("META-INF/spring/camel-context.xml"); } @Test public void testFileSplitParallelProc() throws Exception { PropertiesComponent props = context.getRegistry().lookup("properties", PropertiesComponent.class); int count = Integer.parseInt(props.parseUri("{{demo.message.count}}")); CountDownLatch trigger = new CountDownLatch(count); SplitCounterProcessor splitCounter = context.getRegistry().lookup("splitCounter", SplitCounterProcessor.class); splitCounter.setCounter(trigger); // file poller starts automatically when the route starts // since we created the 'fetch' route with autoStartup=false // polling won't start until we start the route log.info("Expecting to process {} messages", count); context.startRoute("fetch"); // set a timeout larger than the expected processing time int timeout = 10 * 1000; boolean success = trigger.await(timeout, TimeUnit.MILLISECONDS); long delta = success ? System.currentTimeMillis() - splitCounter.getTimeStarted() : timeout; String outcome = success ? "finished in" : "timed out after"; log.info("Processing {} {} millis", outcome, delta); assertTrue(success); } }