| /** |
| * 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.curator.x.discovery.details; |
| |
| import com.google.common.collect.Lists; |
| import org.apache.curator.framework.CuratorFramework; |
| import org.apache.curator.framework.CuratorFrameworkFactory; |
| import org.apache.curator.retry.RetryOneTime; |
| import org.apache.curator.test.BaseClassForTests; |
| import org.apache.curator.test.Timing; |
| import org.apache.curator.utils.CloseableUtils; |
| import org.apache.curator.x.discovery.ServiceDiscovery; |
| import org.apache.curator.x.discovery.ServiceDiscoveryBuilder; |
| import org.apache.curator.x.discovery.ServiceInstance; |
| import org.testng.Assert; |
| import org.testng.annotations.Test; |
| import java.io.Closeable; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.List; |
| |
| public class TestWatchedInstances extends BaseClassForTests |
| { |
| @Test |
| public void testWatchedInstances() throws Exception |
| { |
| Timing timing = new Timing(); |
| List<Closeable> closeables = Lists.newArrayList(); |
| try |
| { |
| CuratorFramework client = CuratorFrameworkFactory.newClient(server.getConnectString(), new RetryOneTime(1)); |
| closeables.add(client); |
| client.start(); |
| |
| ServiceInstance<String> instance = ServiceInstance.<String>builder().payload("thing").name("test").port(10064).build(); |
| ServiceDiscovery<String> discovery = ServiceDiscoveryBuilder |
| .builder(String.class) |
| .basePath("/test") |
| .client(client) |
| .thisInstance(instance) |
| .watchInstances(true) |
| .build(); |
| closeables.add(discovery); |
| discovery.start(); |
| |
| Assert.assertEquals(discovery.queryForNames(), Arrays.asList("test")); |
| |
| List<ServiceInstance<String>> list = Lists.newArrayList(); |
| list.add(instance); |
| Assert.assertEquals(discovery.queryForInstances("test"), list); |
| |
| ServiceDiscoveryImpl<String> discoveryImpl = (ServiceDiscoveryImpl<String>)discovery; |
| ServiceInstance<String> changedInstance = ServiceInstance.<String>builder() |
| .id(instance.getId()) |
| .address(instance.getAddress()) |
| .payload("different") |
| .name(instance.getName()) |
| .port(instance.getPort()) |
| .build(); |
| String path = discoveryImpl.pathForInstance("test", instance.getId()); |
| byte[] bytes = discoveryImpl.getSerializer().serialize(changedInstance); |
| client.setData().forPath(path, bytes); |
| timing.sleepABit(); |
| |
| ServiceInstance<String> registeredService = discoveryImpl.getRegisteredService(instance.getId()); |
| Assert.assertNotNull(registeredService); |
| Assert.assertEquals(registeredService.getPayload(), "different"); |
| } |
| finally |
| { |
| Collections.reverse(closeables); |
| for ( Closeable c : closeables ) |
| { |
| CloseableUtils.closeQuietly(c); |
| } |
| } |
| } |
| } |