package org.apache.helix.participant;
/*
* 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.NotificationContext;
import org.apache.helix.TestHelper;
import org.apache.helix.api.id.MessageId;
import org.apache.helix.api.id.PartitionId;
import org.apache.helix.model.Message;
import org.apache.helix.model.Message.MessageType;
import org.apache.helix.participant.MultiClusterControllerTransitionHandler;
import org.apache.helix.testutil.ZkTestBase;
import org.apache.log4j.Logger;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
public class TestMultiClusterControllerStateModel extends ZkTestBase {
private static Logger LOG = Logger.getLogger(TestMultiClusterControllerStateModel.class);
final String clusterName = "TestMultiClusterControllerStateModel";
MultiClusterControllerTransitionHandler stateModel = null;
@BeforeMethod()
public void beforeMethod() {
stateModel = new MultiClusterControllerTransitionHandler(_zkaddr);
if (_zkclient.exists("/" + clusterName)) {
_zkclient.deleteRecursive("/" + clusterName);
}
TestHelper.setupEmptyCluster(_zkclient, clusterName);
}
@Test()
public void testOnBecomeStandbyFromOffline() {
stateModel.onBecomeStandbyFromOffline(null, null);
}
@Test()
public void testOnBecomeLeaderFromStandby() {
Message message = new Message(MessageType.STATE_TRANSITION, MessageId.from("0"));
message.setPartitionId(PartitionId.from(clusterName));
message.setTgtName("controller_0");
try {
stateModel.onBecomeLeaderFromStandby(message, new NotificationContext(null));
} catch (Exception e) {
LOG.error("Exception becoming leader from standby", e);
}
stateModel.onBecomeStandbyFromLeader(message, new NotificationContext(null));
}
@Test()
public void testOnBecomeStandbyFromLeader() {
Message message = new Message(MessageType.STATE_TRANSITION, MessageId.from("0"));
message.setPartitionId(PartitionId.from(clusterName));
message.setTgtName("controller_0");
stateModel.onBecomeStandbyFromLeader(message, new NotificationContext(null));
}
@Test()
public void testOnBecomeOfflineFromStandby() {
Message message = new Message(MessageType.STATE_TRANSITION, MessageId.from("0"));
message.setPartitionId(PartitionId.from(clusterName));
message.setTgtName("controller_0");
stateModel.onBecomeOfflineFromStandby(message, null);
}
@Test()
public void testOnBecomeDroppedFromOffline() {
stateModel.onBecomeDroppedFromOffline(null, null);
}
@Test()
public void testOnBecomeOfflineFromDropped() {
stateModel.onBecomeOfflineFromDropped(null, null);
}
@Test()
public void testRollbackOnError() {
Message message = new Message(MessageType.STATE_TRANSITION, MessageId.from("0"));
message.setPartitionId(PartitionId.from(clusterName));
message.setTgtName("controller_0");
try {
stateModel.onBecomeLeaderFromStandby(message, new NotificationContext(null));
} catch (Exception e) {
LOG.error("Exception becoming leader from standby", e);
}
stateModel.rollbackOnError(message, new NotificationContext(null), null);
}
@Test()
public void testReset() {
Message message = new Message(MessageType.STATE_TRANSITION, MessageId.from("0"));
message.setPartitionId(PartitionId.from(clusterName));
message.setTgtName("controller_0");
try {
stateModel.onBecomeLeaderFromStandby(message, new NotificationContext(null));
} catch (Exception e) {
LOG.error("Exception becoming leader from standby", e);
}
stateModel.reset();
}
}