| package org.apache.helix; |
| |
| /* |
| * 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. |
| */ |
| |
| import java.io.FileFilter; |
| |
| import org.apache.helix.controller.HierarchicalDataHolder; |
| import org.apache.helix.zookeeper.api.client.HelixZkClient; |
| import org.apache.helix.zookeeper.impl.factory.SharedZkClientFactory; |
| import org.testng.AssertJUnit; |
| import org.testng.annotations.Test; |
| |
| public class TestHierarchicalDataStore extends ZkUnitTestBase { |
| protected static HelixZkClient _zkClient = null; |
| |
| @Test(groups = { "unitTest" |
| }) |
| |
| public void testHierarchicalDataStore() { |
| _zkClient = SharedZkClientFactory.getInstance() |
| .buildZkClient(new HelixZkClient.ZkConnectionConfig(ZK_ADDR)); |
| |
| String path = "/tmp/testHierarchicalDataStore"; |
| FileFilter filter = null; |
| |
| _zkClient.deleteRecursively(path); |
| HierarchicalDataHolder<ZNRecord> dataHolder = |
| new HierarchicalDataHolder<ZNRecord>(_zkClient, path, filter); |
| dataHolder.print(); |
| AssertJUnit.assertFalse(dataHolder.refreshData()); |
| |
| // write data |
| add(path, "root data"); |
| AssertJUnit.assertTrue(dataHolder.refreshData()); |
| dataHolder.print(); |
| |
| // add some children |
| add(path + "/child1", "child 1 data"); |
| add(path + "/child2", "child 2 data"); |
| AssertJUnit.assertTrue(dataHolder.refreshData()); |
| dataHolder.print(); |
| |
| // add some grandchildren |
| add(path + "/child1" + "/grandchild1", "grand child 1 data"); |
| add(path + "/child1" + "/grandchild2", "grand child 2 data"); |
| AssertJUnit.assertTrue(dataHolder.refreshData()); |
| dataHolder.print(); |
| |
| AssertJUnit.assertFalse(dataHolder.refreshData()); |
| |
| set(path + "/child1", "new child 1 data"); |
| AssertJUnit.assertTrue(dataHolder.refreshData()); |
| dataHolder.print(); |
| |
| deleteCluster("tmp"); |
| } |
| |
| private void set(String path, String data) { |
| _zkClient.writeData(path, data); |
| } |
| |
| private void add(String path, String data) { |
| _zkClient.createPersistent(path, true); |
| _zkClient.writeData(path, data); |
| } |
| |
| } |