| /** |
| * 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 org.apache.camel.CamelException; |
| import org.apache.camel.ContextTestSupport; |
| import org.apache.camel.builder.RouteBuilder; |
| import org.apache.camel.component.mock.MockEndpoint; |
| |
| public class WeightedRoundRobinLoadBalanceTest extends ContextTestSupport { |
| protected MockEndpoint x; |
| protected MockEndpoint y; |
| protected MockEndpoint z; |
| |
| @Override |
| protected void setUp() throws Exception { |
| super.setUp(); |
| |
| x = getMockEndpoint("mock:x"); |
| y = getMockEndpoint("mock:y"); |
| z = getMockEndpoint("mock:z"); |
| } |
| |
| @Override |
| public boolean isUseRouteBuilder() { |
| return false; |
| } |
| |
| public void testRoundRobin() throws Exception { |
| x.expectedMessageCount(5); |
| y.expectedMessageCount(2); |
| z.expectedMessageCount(1); |
| |
| context.addRoutes(new RouteBuilder() { |
| public void configure() { |
| // START SNIPPET: example |
| from("direct:start") |
| .loadBalance().weighted(true, "4,2,1") |
| .to("mock:x", "mock:y", "mock:z"); |
| // END SNIPPET: example |
| } |
| }); |
| context.start(); |
| |
| sendMessages(1, 2, 3, 4, 5, 6, 7, 8); |
| |
| assertMockEndpointsSatisfied(); |
| x.expectedBodiesReceived(1, 4, 6, 7, 8); |
| y.expectedBodiesReceived(2, 5); |
| z.expectedBodiesReceived(3); |
| } |
| |
| public void testRoundRobin2() throws Exception { |
| x.expectedMessageCount(3); |
| y.expectedMessageCount(1); |
| z.expectedMessageCount(3); |
| |
| context.addRoutes(new RouteBuilder() { |
| public void configure() { |
| |
| // START SNIPPET: example |
| from("direct:start") |
| .loadBalance().weighted(true, "2, 1, 3", ",") |
| .to("mock:x", "mock:y", "mock:z"); |
| // END SNIPPET: example |
| } |
| }); |
| context.start(); |
| |
| sendMessages(1, 2, 3, 4, 5, 6, 7); |
| |
| assertMockEndpointsSatisfied(); |
| x.expectedBodiesReceived(1, 4, 7); |
| y.expectedBodiesReceived(2); |
| z.expectedBodiesReceived(3, 5, 6); |
| } |
| |
| public void testRoundRobinBulk() throws Exception { |
| |
| x.expectedMessageCount(10); |
| y.expectedMessageCount(15); |
| z.expectedMessageCount(25); |
| |
| context.addRoutes(new RouteBuilder() { |
| public void configure() { |
| // START SNIPPET: example |
| from("direct:start") |
| .loadBalance().weighted(true, "2-3-5", "-") |
| .to("mock:x", "mock:y", "mock:z"); |
| // END SNIPPET: example |
| } |
| }); |
| context.start(); |
| |
| sendBulkMessages(50); |
| |
| assertMockEndpointsSatisfied(); |
| } |
| |
| public void testUnmatchedRatiosToProcessors() throws Exception { |
| boolean error = false; |
| |
| try { |
| context.addRoutes(new RouteBuilder() { |
| public void configure() { |
| // START SNIPPET: example |
| from("direct:start") |
| .loadBalance().weighted(true, "2,3") |
| .to("mock:x", "mock:y", "mock:z"); |
| // END SNIPPET: example |
| } |
| }); |
| context.start(); |
| } catch (IllegalArgumentException e) { |
| assertEquals("Loadbalacing with 3 should match number of distributions 2", e.getMessage()); |
| error = true; |
| } |
| |
| assertTrue(error); |
| } |
| |
| protected void sendBulkMessages(int number) { |
| for (int i = 0; i < number; i++) { |
| template.sendBodyAndHeader("direct:start", createTestMessage(i), "counter", i); |
| } |
| } |
| |
| protected void sendMessages(int... counters) { |
| for (int counter : counters) { |
| template.sendBodyAndHeader("direct:start", createTestMessage(counter), "counter", counter); |
| } |
| } |
| |
| private String createTestMessage(int counter) { |
| return "<message>" + counter + "</message>"; |
| } |
| |
| } |