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 org.apache.helix.Mocks.MockHelixTaskExecutor;
import org.apache.helix.Mocks.MockManager;
import org.apache.helix.Mocks.MockStateModel;
import org.apache.helix.PropertyKey.Builder;
import org.apache.helix.api.State;
import org.apache.helix.api.StateTransitionHandlerFactory;
import org.apache.helix.api.id.MessageId;
import org.apache.helix.api.id.PartitionId;
import org.apache.helix.api.id.ResourceId;
import org.apache.helix.api.id.SessionId;
import org.apache.helix.api.id.StateModelDefId;
import org.apache.helix.messaging.handling.AsyncCallbackService;
import org.apache.helix.messaging.handling.HelixStateTransitionHandler;
import org.apache.helix.messaging.handling.HelixTask;
import org.apache.helix.model.CurrentState;
import org.apache.helix.model.Message;
import org.apache.helix.model.Message.MessageType;
import org.apache.helix.model.StateModelDefinition;
import org.apache.helix.tools.StateModelConfigGenerator;
import org.testng.AssertJUnit;
import org.testng.annotations.Test;
public class TestHelixTaskExecutor {
@Test()
public void testCMTaskExecutor() throws Exception {
System.out.println("START TestCMTaskExecutor");
MessageId msgId = MessageId.from("TestMessageId");
Message message = new Message(MessageType.TASK_REPLY, msgId);
message.setMessageId(msgId);
message.setSrcName("cm-instance-0");
message.setTgtName("cm-instance-1");
message.setTgtSessionId(SessionId.from("1234"));
message.setFromState(State.from("Offline"));
message.setToState(State.from("Slave"));
message.setPartitionId(PartitionId.from("TestDB_0"));
message.setResourceId(ResourceId.from("TestDB"));
message.setStateModelDef(StateModelDefId.from("MasterSlave"));
MockManager manager = new MockManager("clusterName");
HelixDataAccessor accessor = manager.getHelixDataAccessor();
StateModelDefinition stateModelDef =
new StateModelDefinition(StateModelConfigGenerator.generateConfigForMasterSlave());
Builder keyBuilder = accessor.keyBuilder();
accessor.setProperty(keyBuilder.stateModelDef("MasterSlave"), stateModelDef);
MockHelixTaskExecutor executor = new MockHelixTaskExecutor();
MockStateModel stateModel = new MockStateModel();
executor.registerMessageHandlerFactory(MessageType.TASK_REPLY.toString(),
new AsyncCallbackService());
NotificationContext context = new NotificationContext(manager);
CurrentState currentStateDelta = new CurrentState("TestDB");
currentStateDelta.setState(PartitionId.from("TestDB_0"), State.from("OFFLINE"));
StateTransitionHandlerFactory<MockStateModel> stateModelFactory = new StateTransitionHandlerFactory<MockStateModel>() {
@Override
public MockStateModel createStateTransitionHandler(PartitionId partition) {
// TODO Auto-generated method stub
return new MockStateModel();
}
};
HelixStateTransitionHandler handler =
new HelixStateTransitionHandler(stateModelFactory, stateModel, message, context,
currentStateDelta);
HelixTask task = new HelixTask(message, context, handler, executor);
executor.scheduleTask(task);
for (int i = 0; i < 10; i++) {
if (!executor.isDone(task.getTaskId())) {
Thread.sleep(500);
}
}
AssertJUnit.assertTrue(stateModel.stateModelInvoked);
System.out.println("END TestCMTaskExecutor");
}
}