| /** |
| * 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.twitter.distributedlog.client.routing; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| import com.google.common.collect.Sets; |
| import com.twitter.distributedlog.client.resolver.DefaultRegionResolver; |
| import com.twitter.distributedlog.thrift.service.StatusCode; |
| import com.twitter.finagle.NoBrokersAvailableException; |
| import java.net.InetSocketAddress; |
| import java.net.SocketAddress; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.atomic.AtomicInteger; |
| import org.junit.Test; |
| |
| /** |
| * Test Case for {@link RegionsRoutingService}. |
| */ |
| public class TestRegionsRoutingService { |
| |
| @Test(timeout = 60000) |
| public void testRoutingListener() throws Exception { |
| int numRoutingServices = 5; |
| RoutingService.Builder[] routingServiceBuilders = new RoutingService.Builder[numRoutingServices]; |
| Set<SocketAddress> hosts = new HashSet<SocketAddress>(); |
| Map<SocketAddress, String> regionMap = new HashMap<SocketAddress, String>(); |
| for (int i = 0; i < numRoutingServices; i++) { |
| String finagleNameStr = "inet!127.0.0.1:" + (3181 + i); |
| routingServiceBuilders[i] = RoutingUtils.buildRoutingService(finagleNameStr); |
| SocketAddress address = new InetSocketAddress("127.0.0.1", 3181 + i); |
| hosts.add(address); |
| regionMap.put(address, "region-" + i); |
| } |
| |
| final CountDownLatch doneLatch = new CountDownLatch(numRoutingServices); |
| final AtomicInteger numHostsLeft = new AtomicInteger(0); |
| final Set<SocketAddress> jointHosts = new HashSet<SocketAddress>(); |
| RegionsRoutingService regionsRoutingService = |
| RegionsRoutingService.newBuilder() |
| .routingServiceBuilders(routingServiceBuilders) |
| .resolver(new DefaultRegionResolver(regionMap)) |
| .build(); |
| regionsRoutingService.registerListener(new RoutingService.RoutingListener() { |
| @Override |
| public void onServerLeft(SocketAddress address) { |
| numHostsLeft.incrementAndGet(); |
| } |
| |
| @Override |
| public void onServerJoin(SocketAddress address) { |
| jointHosts.add(address); |
| doneLatch.countDown(); |
| } |
| }); |
| |
| regionsRoutingService.startService(); |
| |
| doneLatch.await(); |
| |
| assertEquals(numRoutingServices, jointHosts.size()); |
| assertEquals(0, numHostsLeft.get()); |
| assertTrue(Sets.difference(hosts, jointHosts).immutableCopy().isEmpty()); |
| } |
| |
| @Test(timeout = 60000) |
| public void testGetHost() throws Exception { |
| int numRoutingServices = 3; |
| RoutingService.Builder[] routingServiceBuilders = new RoutingService.Builder[numRoutingServices]; |
| Map<SocketAddress, String> regionMap = new HashMap<SocketAddress, String>(); |
| for (int i = 0; i < numRoutingServices; i++) { |
| String finagleNameStr = "inet!127.0.0.1:" + (3181 + i); |
| routingServiceBuilders[i] = RoutingUtils.buildRoutingService(finagleNameStr); |
| SocketAddress address = new InetSocketAddress("127.0.0.1", 3181 + i); |
| regionMap.put(address, "region-" + i); |
| } |
| |
| RegionsRoutingService regionsRoutingService = |
| RegionsRoutingService.newBuilder() |
| .resolver(new DefaultRegionResolver(regionMap)) |
| .routingServiceBuilders(routingServiceBuilders) |
| .build(); |
| regionsRoutingService.startService(); |
| |
| RoutingService.RoutingContext routingContext = |
| RoutingService.RoutingContext.of(new DefaultRegionResolver()) |
| .addTriedHost(new InetSocketAddress("127.0.0.1", 3183), StatusCode.WRITE_EXCEPTION); |
| assertEquals(new InetSocketAddress("127.0.0.1", 3181), |
| regionsRoutingService.getHost("any", routingContext)); |
| |
| routingContext = |
| RoutingService.RoutingContext.of(new DefaultRegionResolver()) |
| .addTriedHost(new InetSocketAddress("127.0.0.1", 3181), StatusCode.WRITE_EXCEPTION); |
| assertEquals(new InetSocketAddress("127.0.0.1", 3182), |
| regionsRoutingService.getHost("any", routingContext)); |
| |
| // add 3182 to routing context as tried host |
| routingContext.addTriedHost(new InetSocketAddress("127.0.0.1", 3182), StatusCode.WRITE_EXCEPTION); |
| assertEquals(new InetSocketAddress("127.0.0.1", 3183), |
| regionsRoutingService.getHost("any", routingContext)); |
| |
| // add 3183 to routing context as tried host |
| routingContext.addTriedHost(new InetSocketAddress("127.0.0.1", 3183), StatusCode.WRITE_EXCEPTION); |
| try { |
| regionsRoutingService.getHost("any", routingContext); |
| fail("Should fail to get host since all regions are tried."); |
| } catch (NoBrokersAvailableException nbae) { |
| // expected |
| } |
| } |
| |
| } |