package org.apache.helix.integration;
/*
* 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.util.Date;
import org.apache.helix.TestHelper;
import org.apache.helix.ZNRecord;
import org.apache.helix.PropertyKey.Builder;
import org.apache.helix.manager.zk.ZKHelixDataAccessor;
import org.apache.helix.manager.zk.ZkBaseDataAccessor;
import org.apache.helix.mock.controller.ClusterController;
import org.apache.helix.mock.participant.MockParticipant;
import org.apache.helix.mock.participant.MockParticipant.MockMSModelFactory;
import org.apache.helix.model.ExternalView;
import org.apache.helix.model.IdealState;
import org.apache.helix.tools.ClusterSetup;
import org.apache.helix.tools.ClusterStateVerifier;
import org.apache.helix.tools.ClusterStateVerifier.BestPossAndExtViewZkVerifier;
import org.testng.Assert;
import org.testng.annotations.Test;
public class TestAddStateModelFactoryAfterConnect extends ZkIntegrationTestBase
{
@Test
public void testAddStateModelFactoryAfterConnect() throws Exception
{
// Logger.getRootLogger().setLevel(Level.INFO);
String className = TestHelper.getTestClassName();
String methodName = TestHelper.getTestMethodName();
String clusterName = className + "_" + methodName;
final int n = 5;
System.out.println("START " + clusterName + " at "
+ new Date(System.currentTimeMillis()));
MockParticipant[] participants = new MockParticipant[n];
TestHelper.setupCluster(clusterName, ZK_ADDR, 12918, // participant port
"localhost", // participant name prefix
"TestDB", // resource name prefix
1, // resources
10, // partitions per resource
n, // number of nodes
3, // replicas
"MasterSlave",
true); // do rebalance
ClusterController controller =
new ClusterController(clusterName, "controller_0", ZK_ADDR);
controller.syncStart();
// start participants
for (int i = 0; i < n; i++)
{
String instanceName = "localhost_" + (12918 + i);
participants[i] = new MockParticipant(clusterName, instanceName, ZK_ADDR, null);
participants[i].syncStart();
}
boolean result =
ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
clusterName));
Assert.assertTrue(result);
// add a new idealState without registering message handling factory
ClusterSetup setupTool = new ClusterSetup(ZK_ADDR);
setupTool.addResourceToCluster(clusterName, "TestDB1", 16, "MasterSlave");
ZkBaseDataAccessor<ZNRecord> baseAccessor =
new ZkBaseDataAccessor<ZNRecord>(_gZkClient);
ZKHelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, baseAccessor);
Builder keyBuilder = accessor.keyBuilder();
IdealState idealState = accessor.getProperty(keyBuilder.idealStates("TestDB1"));
idealState.setStateModelFactoryName("TestDB1_Factory");
accessor.setProperty(keyBuilder.idealStates("TestDB1"), idealState);
setupTool.rebalanceStorageCluster(clusterName, "TestDB1", 3);
// external view for TestDB1 should be empty
ExternalView extView = null;
long start = System.currentTimeMillis();
while (extView == null)
{
Thread.sleep(50);
extView = accessor.getProperty(keyBuilder.externalView("TestDB1"));
long now = System.currentTimeMillis();
if (now - start > 5000)
{
Assert.fail("Timeout waiting for an empty external view of TestDB1");
}
}
Assert.assertEquals(extView.getRecord().getMapFields().size(),
0,
"External view for TestDB1 should be empty since TestDB1 is added without a state model factory");
// register "TestDB1_Factory" state model factory
// Logger.getRootLogger().setLevel(Level.INFO);
for (int i = 0; i < n; i++)
{
participants[i].getManager()
.getStateMachineEngine()
.registerStateModelFactory("MasterSlave",
new MockMSModelFactory(),
"TestDB1_Factory");
}
result =
ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
clusterName));
Assert.assertTrue(result);
// clean up
// wait for all zk callbacks done
Thread.sleep(1000);
controller.syncStop();
for (int i = 0; i < 5; i++)
{
participants[i].syncStop();
}
System.out.println("END " + clusterName + " at "
+ new Date(System.currentTimeMillis()));
}
}