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1   package org.apache.helix;
2   
3   /*
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *   http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  import org.apache.helix.Mocks.MockHelixTaskExecutor;
23  import org.apache.helix.Mocks.MockManager;
24  import org.apache.helix.Mocks.MockStateModel;
25  import org.apache.helix.PropertyKey.Builder;
26  import org.apache.helix.messaging.handling.AsyncCallbackService;
27  import org.apache.helix.messaging.handling.HelixStateTransitionHandler;
28  import org.apache.helix.messaging.handling.HelixTask;
29  import org.apache.helix.model.CurrentState;
30  import org.apache.helix.model.Message;
31  import org.apache.helix.model.Message.MessageType;
32  import org.apache.helix.model.StateModelDefinition;
33  import org.apache.helix.tools.StateModelConfigGenerator;
34  import org.testng.AssertJUnit;
35  import org.testng.annotations.Test;
36  
37  
38  public class TestHelixTaskExecutor
39  {
40  
41    @Test()
42    public void testCMTaskExecutor() throws Exception
43    {
44      System.out.println("START TestCMTaskExecutor");
45      String msgId = "TestMessageId";
46      Message message = new Message(MessageType.TASK_REPLY, msgId);
47  
48      message.setMsgId(msgId);
49      message.setSrcName("cm-instance-0");
50      message.setTgtName("cm-instance-1");
51      message.setTgtSessionId("1234");
52      message.setFromState("Offline");
53      message.setToState("Slave");
54      message.setPartitionName("TestDB_0");
55      message.setResourceName("TestDB");
56      message.setStateModelDef("MasterSlave");
57  
58      MockManager manager = new MockManager("clusterName");
59      // DataAccessor accessor = manager.getDataAccessor();
60      HelixDataAccessor accessor = manager.getHelixDataAccessor();
61      StateModelConfigGenerator generator = new StateModelConfigGenerator();
62      StateModelDefinition stateModelDef =
63          new StateModelDefinition(generator.generateConfigForMasterSlave());
64      Builder keyBuilder = accessor.keyBuilder();
65      accessor.setProperty(keyBuilder.stateModelDef("MasterSlave"), stateModelDef);
66  
67      MockHelixTaskExecutor executor = new MockHelixTaskExecutor();
68      MockStateModel stateModel = new MockStateModel();
69      NotificationContext context;
70      executor.registerMessageHandlerFactory(MessageType.TASK_REPLY.toString(),
71                                             new AsyncCallbackService());
72      // String clusterName =" testcluster";
73      context = new NotificationContext(manager);
74      CurrentState currentStateDelta = new CurrentState("TestDB");
75      currentStateDelta.setState("TestDB_0", "OFFLINE");
76      HelixStateTransitionHandler handler =
77          new HelixStateTransitionHandler(stateModel,
78                                          message,
79                                          context,
80                                          currentStateDelta);
81  
82  	HelixTask task = new HelixTask(message, context, handler, executor);
83  	executor.scheduleTask(task);
84  	for (int i = 0; i < 10; i++) {
85  		if (!executor.isDone(task.getTaskId())) {
86  			Thread.sleep(500);
87  		}
88  	}
89      AssertJUnit.assertTrue(stateModel.stateModelInvoked);
90      System.out.println("END TestCMTaskExecutor");
91    }
92  
93  }