Java tutorial
/* * * * Copyright 2005-2015 Red Hat, Inc. * * Red Hat 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 io.fabric8.example.variance.http; import com.fasterxml.jackson.databind.ObjectMapper; import org.apache.camel.EndpointInject; import org.apache.camel.Produce; import org.apache.camel.ProducerTemplate; import org.apache.camel.builder.RouteBuilder; import org.apache.camel.component.mock.MockEndpoint; import org.apache.camel.test.junit4.CamelTestSupport; import org.apache.commons.math3.random.JDKRandomGenerator; import org.apache.commons.math3.random.RandomGenerator; import org.apache.commons.math3.stat.descriptive.SummaryStatistics; import org.junit.Test; import java.util.List; public class VarianceProcessorTest extends CamelTestSupport { @EndpointInject(uri = "mock:result") protected MockEndpoint resultEndpoint; @Produce(uri = "direct:start") protected ProducerTemplate template; @Test public void testProcess() throws Exception { RandomGenerator rg = new JDKRandomGenerator(); double[] array = new double[10]; ObjectMapper objectMapper = new ObjectMapper(); for (int i = 0; i < array.length; i++) { array[i] = rg.nextDouble(); } String body = objectMapper.writeValueAsString(array); String expectedBody = "0.0"; SummaryStatistics summaryStatistics = new SummaryStatistics(); List<Double> list = new ObjectMapper().readValue(body, List.class); for (Double value : list) { summaryStatistics.addValue(value); } String variance = Double.toString(summaryStatistics.getVariance()); resultEndpoint.expectedBodiesReceived(variance); template.sendBody(body); resultEndpoint.assertIsSatisfied(); } @Override protected RouteBuilder createRouteBuilder() { return new RouteBuilder() { @Override public void configure() throws Exception { from("direct:start").process(new VarianceProcessor()).to("mock:result"); } }; } }