| /* |
| * 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.solr.cloud; |
| |
| import java.io.IOException; |
| import java.nio.charset.Charset; |
| import java.nio.file.Path; |
| import java.util.Locale; |
| import org.apache.commons.io.FileUtils; |
| import org.apache.solr.SolrTestCaseJ4; |
| import org.apache.solr.common.cloud.SolrZkClient; |
| import org.apache.zookeeper.CreateMode; |
| import org.apache.zookeeper.KeeperException; |
| import org.junit.AfterClass; |
| import org.junit.BeforeClass; |
| |
| public class TestDistributedMap extends SolrTestCaseJ4 { |
| |
| private static Path zkDir; |
| |
| protected static ZkTestServer zkServer; |
| |
| @BeforeClass |
| public static void setUpClass() throws Exception { |
| zkDir = createTempDir("TestDistributedMap"); |
| zkServer = new ZkTestServer(zkDir); |
| zkServer.run(); |
| } |
| |
| @AfterClass |
| public static void tearDownClass() throws IOException, InterruptedException { |
| |
| if (zkServer != null) { |
| zkServer.shutdown(); |
| zkServer = null; |
| } |
| if (null != zkDir) { |
| FileUtils.deleteDirectory(zkDir.toFile()); |
| zkDir = null; |
| } |
| } |
| |
| public void testPut() throws KeeperException, InterruptedException { |
| try (SolrZkClient zkClient = new SolrZkClient(zkServer.getZkHost(), 10000)) { |
| String path = getAndMakeInitialPath(zkClient); |
| DistributedMap map = createMap(zkClient, path); |
| assertFalse(zkClient.exists(path + "/" + DistributedMap.PREFIX + "foo", true)); |
| map.put("foo", new byte[0]); |
| assertTrue(zkClient.exists(path + "/" + DistributedMap.PREFIX + "foo", true)); |
| } |
| } |
| |
| public void testGet() throws KeeperException, InterruptedException { |
| try (SolrZkClient zkClient = new SolrZkClient(zkServer.getZkHost(), 10000)) { |
| String path = getAndMakeInitialPath(zkClient); |
| byte[] data = "data".getBytes(Charset.defaultCharset()); |
| zkClient.makePath(path + "/" + DistributedMap.PREFIX + "foo", data, CreateMode.PERSISTENT, null, false, true); |
| DistributedMap map = createMap(zkClient, path); |
| assertArrayEquals(data, map.get("foo")); |
| } |
| } |
| |
| public void testContains() throws KeeperException, InterruptedException { |
| try (SolrZkClient zkClient = new SolrZkClient(zkServer.getZkHost(), 10000)) { |
| String path = getAndMakeInitialPath(zkClient); |
| DistributedMap map = createMap(zkClient, path); |
| assertFalse(map.contains("foo")); |
| zkClient.makePath(path + "/" + DistributedMap.PREFIX + "foo", new byte[0], CreateMode.PERSISTENT, null, false, true); |
| assertTrue(map.contains("foo")); |
| } |
| } |
| |
| public void testRemove() throws KeeperException, InterruptedException { |
| try (SolrZkClient zkClient = new SolrZkClient(zkServer.getZkHost(), 10000)) { |
| String path = getAndMakeInitialPath(zkClient); |
| DistributedMap map = createMap(zkClient, path); |
| assertFalse(map.remove("foo")); |
| zkClient.makePath(path + "/" + DistributedMap.PREFIX + "foo", new byte[0], CreateMode.PERSISTENT, null, false, true); |
| assertTrue(map.remove("foo")); |
| assertFalse(map.contains("foo")); |
| assertFalse(zkClient.exists(path + "/" + DistributedMap.PREFIX + "foo", true)); |
| } |
| } |
| |
| public void testSize() throws KeeperException, InterruptedException { |
| try (SolrZkClient zkClient = new SolrZkClient(zkServer.getZkHost(), 10000)) { |
| String path = getAndMakeInitialPath(zkClient); |
| DistributedMap map = createMap(zkClient, path); |
| assertEquals(0, map.size()); |
| map.remove("bar"); |
| assertEquals(0, map.size()); |
| map.put("foo", new byte[0]); |
| assertEquals(1, map.size()); |
| map.put("foo2", new byte[0]); |
| assertEquals(2, map.size()); |
| map.remove("foo"); |
| assertEquals(1, map.size()); |
| } |
| } |
| |
| public void testPutIfAbsent() throws KeeperException, InterruptedException { |
| try (SolrZkClient zkClient = new SolrZkClient(zkServer.getZkHost(), 10000)) { |
| String path = getAndMakeInitialPath(zkClient); |
| DistributedMap map = createMap(zkClient, path); |
| assertEquals(0, map.size()); |
| assertFalse(map.contains("foo")); |
| assertTrue(map.putIfAbsent("foo", new byte[0])); |
| assertEquals(1, map.size()); |
| assertTrue(map.contains("foo")); |
| assertFalse(map.putIfAbsent("foo", new byte[0])); |
| assertTrue(map.contains("foo")); |
| assertEquals(1, map.size()); |
| map.remove("foo"); |
| assertFalse(map.contains("foo")); |
| assertEquals(0, map.size()); |
| assertTrue(map.putIfAbsent("foo", new byte[0])); |
| assertEquals(1, map.size()); |
| assertTrue(map.contains("foo")); |
| } |
| |
| } |
| |
| public void testKeys() throws KeeperException, InterruptedException { |
| try (SolrZkClient zkClient = new SolrZkClient(zkServer.getZkHost(), 10000)) { |
| String path = getAndMakeInitialPath(zkClient); |
| DistributedMap map = createMap(zkClient, path); |
| assertEquals(0, map.keys().size()); |
| map.put("foo", new byte[0]); |
| assertTrue(map.keys().contains("foo")); |
| assertEquals(1, map.keys().size()); |
| |
| map.put("bar", new byte[0]); |
| assertTrue(map.keys().contains("bar")); |
| assertTrue(map.keys().contains("foo")); |
| assertEquals(2, map.keys().size()); |
| |
| map.remove("foo"); |
| assertTrue(map.keys().contains("bar")); |
| assertEquals(1, map.keys().size()); |
| } |
| } |
| |
| public void testClear() throws KeeperException, InterruptedException { |
| try (SolrZkClient zkClient = new SolrZkClient(zkServer.getZkHost(), 10000)) { |
| String path = getAndMakeInitialPath(zkClient); |
| DistributedMap map = createMap(zkClient, path); |
| map.clear(); |
| assertEquals(0, map.size()); |
| map.put("foo", new byte[0]); |
| map.put("bar", new byte[0]); |
| assertEquals(2, map.size()); |
| map.clear(); |
| assertEquals(0, map.size()); |
| } |
| } |
| |
| protected DistributedMap createMap(SolrZkClient zkClient, String path) { |
| return new DistributedMap(zkClient, path); |
| } |
| |
| protected String getAndMakeInitialPath(SolrZkClient zkClient) throws KeeperException, InterruptedException { |
| String path = String.format(Locale.ROOT, "/%s/%s", getClass().getName(), getSaferTestName()); |
| zkClient.makePath(path, false, true); |
| return path; |
| } |
| |
| |
| } |