| /** |
| * 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.distributedlog.impl; |
| |
| import com.google.common.base.Optional; |
| import com.google.common.collect.Sets; |
| import org.apache.distributedlog.DistributedLogConfiguration; |
| import org.apache.distributedlog.TestDistributedLogBase; |
| import org.apache.distributedlog.TestZooKeeperClientBuilder; |
| import org.apache.distributedlog.ZooKeeperClient; |
| import org.apache.distributedlog.util.OrderedScheduler; |
| import org.apache.distributedlog.util.Utils; |
| import org.apache.zookeeper.CreateMode; |
| import org.apache.zookeeper.ZooDefs; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.TestName; |
| |
| import java.net.URI; |
| import java.util.Set; |
| |
| import static org.junit.Assert.*; |
| |
| /** |
| * Test ZK based metadata store. |
| */ |
| public class TestZKLogMetadataStore extends TestDistributedLogBase { |
| |
| private final static int zkSessionTimeoutMs = 2000; |
| |
| @Rule |
| public TestName runtime = new TestName(); |
| protected final DistributedLogConfiguration baseConf = |
| new DistributedLogConfiguration(); |
| protected ZooKeeperClient zkc; |
| protected ZKLogMetadataStore metadataStore; |
| protected OrderedScheduler scheduler; |
| protected URI uri; |
| |
| @Before |
| public void setup() throws Exception { |
| zkc = TestZooKeeperClientBuilder.newBuilder() |
| .uri(createDLMURI("/")) |
| .sessionTimeoutMs(zkSessionTimeoutMs) |
| .build(); |
| scheduler = OrderedScheduler.newBuilder() |
| .name("test-zk-logmetadata-store") |
| .corePoolSize(1) |
| .build(); |
| DistributedLogConfiguration conf = new DistributedLogConfiguration(); |
| conf.addConfiguration(baseConf); |
| this.uri = createDLMURI("/" + runtime.getMethodName()); |
| metadataStore = new ZKLogMetadataStore(conf, uri, zkc, scheduler); |
| } |
| |
| @After |
| public void teardown() throws Exception { |
| if (null != zkc) { |
| zkc.close(); |
| } |
| if (null != scheduler) { |
| scheduler.shutdown(); |
| } |
| } |
| |
| private void createLogInNamespace(URI uri, String logName) throws Exception { |
| String logPath = uri.getPath() + "/" + logName; |
| Utils.zkCreateFullPathOptimistic(zkc, logPath, new byte[0], |
| ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT); |
| } |
| |
| @Test(timeout = 60000) |
| public void testCreateLog() throws Exception { |
| assertEquals(uri, Utils.ioResult(metadataStore.createLog("test"))); |
| } |
| |
| @Test(timeout = 60000) |
| public void testGetLogLocation() throws Exception { |
| Optional<URI> uriOptional = Utils.ioResult(metadataStore.getLogLocation("test")); |
| assertTrue(uriOptional.isPresent()); |
| assertEquals(uri, uriOptional.get()); |
| } |
| |
| @Test(timeout = 60000) |
| public void testGetLogs() throws Exception { |
| Set<String> logs = Sets.newHashSet(); |
| for (int i = 0; i < 10; i++) { |
| String logName = "test-" + i; |
| logs.add(logName); |
| createLogInNamespace(uri, logName); |
| } |
| Set<String> result = Sets.newHashSet(Utils.ioResult(metadataStore.getLogs())); |
| assertEquals(10, result.size()); |
| assertTrue(Sets.difference(logs, result).isEmpty()); |
| } |
| } |