package org.apache.helix.manager.zk;
/*
* 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
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import java.util.ArrayList;
import java.util.Arrays;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.helix.AccessOption;
import org.apache.helix.integration.manager.MockParticipantManager;
import org.apache.helix.model.ConfigScope;
import org.apache.helix.model.HelixConfigScope;
import org.apache.helix.model.HelixConfigScope.ConfigScopeProperty;
import org.apache.helix.model.builder.ConfigScopeBuilder;
import org.apache.helix.model.builder.HelixConfigScopeBuilder;
import org.apache.helix.HelixAdmin;
import org.apache.helix.HelixDataAccessor;
import org.apache.helix.HelixException;
import org.apache.helix.InstanceType;
import org.apache.helix.LiveInstanceInfoProvider;
import org.apache.helix.PropertyKey.Builder;
import org.apache.helix.TestHelper;
import org.apache.helix.ZNRecord;
import org.apache.helix.ZkTestHelper;
import org.apache.helix.ZkUnitTestBase;
import org.apache.helix.manager.MockListener;
import org.apache.helix.manager.zk.ZKHelixManager;
import org.apache.helix.model.LiveInstance;
import org.apache.helix.store.zk.ZkHelixPropertyStore;
import org.apache.zookeeper.data.Stat;
import org.testng.Assert;
import org.testng.AssertJUnit;
import org.testng.annotations.Test;
public class TestZkClusterManager extends ZkUnitTestBase {
final String className = getShortClassName();
@Test()
public void testController() throws Exception {
System.out.println("START " + className + ".testController() at "
+ new Date(System.currentTimeMillis()));
final String clusterName = CLUSTER_PREFIX + "_" + className + "_controller";
// basic test
if (_gZkClient.exists("/" + clusterName)) {
_gZkClient.deleteRecursive("/" + clusterName);
}
ZKHelixManager controller =
new ZKHelixManager(clusterName, null, InstanceType.CONTROLLER, ZK_ADDR);
try {
controller.connect();
Assert.fail("Should throw HelixException if initial cluster structure is not setup");
} catch (HelixException e) {
// OK
}
TestHelper.setupEmptyCluster(_gZkClient, clusterName);
controller.connect();
AssertJUnit.assertTrue(controller.isConnected());
controller.connect();
AssertJUnit.assertTrue(controller.isConnected());
MockListener listener = new MockListener();
listener.reset();
try {
controller.addControllerListener(null);
Assert.fail("Should throw HelixException");
} catch (HelixException e) {
// OK
}
Builder keyBuilder = new Builder(controller.getClusterName());
controller.addControllerListener(listener);
AssertJUnit.assertTrue(listener.isControllerChangeListenerInvoked);
controller.removeListener(keyBuilder.controller(), listener);
ZkHelixPropertyStore<ZNRecord> store = controller.getHelixPropertyStore();
ZNRecord record = new ZNRecord("node_1");
int options = 0;
store.set("/node_1", record, AccessOption.PERSISTENT);
Stat stat = new Stat();
record = store.get("/node_1", stat, options);
AssertJUnit.assertEquals("node_1", record.getId());
controller.getMessagingService();
controller.getClusterManagmentTool();
controller.handleNewSession();
controller.disconnect();
AssertJUnit.assertFalse(controller.isConnected());
System.out.println("END " + className + ".testController() at "
+ new Date(System.currentTimeMillis()));
}
@Test
public void testLiveInstanceInfoProvider() throws Exception {
System.out.println("START " + className + ".testLiveInstanceInfoProvider() at "
+ new Date(System.currentTimeMillis()));
final String clusterName = CLUSTER_PREFIX + "_" + className + "_liveInstanceInfoProvider";
class provider implements LiveInstanceInfoProvider {
boolean _flag = false;
public provider(boolean genSessionId) {
_flag = genSessionId;
}
@Override
public ZNRecord getAdditionalLiveInstanceInfo() {
ZNRecord record = new ZNRecord("info");
record.setSimpleField("simple", "value");
List<String> listFieldVal = new ArrayList<String>();
listFieldVal.add("val1");
listFieldVal.add("val2");
listFieldVal.add("val3");
record.setListField("list", listFieldVal);
Map<String, String> mapFieldVal = new HashMap<String, String>();
mapFieldVal.put("k1", "val1");
mapFieldVal.put("k2", "val2");
mapFieldVal.put("k3", "val3");
record.setMapField("map", mapFieldVal);
if (_flag) {
record.setSimpleField("SESSION_ID", "value");
record.setSimpleField("LIVE_INSTANCE", "value");
record.setSimpleField("Others", "value");
}
return record;
}
}
TestHelper.setupEmptyCluster(_gZkClient, clusterName);
int[] ids = {
0, 1, 2, 3, 4, 5
};
setupInstances(clusterName, ids);
// ///////////////////
ZKHelixManager manager =
new ZKHelixManager(clusterName, "localhost_0", InstanceType.PARTICIPANT, ZK_ADDR);
manager.connect();
HelixDataAccessor accessor = manager.getHelixDataAccessor();
LiveInstance liveInstance =
accessor.getProperty(accessor.keyBuilder().liveInstance("localhost_0"));
Assert.assertTrue(liveInstance.getRecord().getListFields().size() == 0);
Assert.assertTrue(liveInstance.getRecord().getMapFields().size() == 0);
Assert.assertTrue(liveInstance.getRecord().getSimpleFields().size() == 3);
manager = new ZKHelixManager(clusterName, "localhost_1", InstanceType.PARTICIPANT, ZK_ADDR);
manager.setLiveInstanceInfoProvider(new provider(false));
manager.connect();
accessor = manager.getHelixDataAccessor();
liveInstance = accessor.getProperty(accessor.keyBuilder().liveInstance("localhost_1"));
Assert.assertTrue(liveInstance.getRecord().getListFields().size() == 1);
Assert.assertTrue(liveInstance.getRecord().getMapFields().size() == 1);
Assert.assertTrue(liveInstance.getRecord().getSimpleFields().size() == 4);
manager = new ZKHelixManager(clusterName, "localhost_2", InstanceType.PARTICIPANT, ZK_ADDR);
manager.setLiveInstanceInfoProvider(new provider(true));
manager.connect();
accessor = manager.getHelixDataAccessor();
liveInstance = accessor.getProperty(accessor.keyBuilder().liveInstance("localhost_2"));
Assert.assertTrue(liveInstance.getRecord().getListFields().size() == 1);
Assert.assertTrue(liveInstance.getRecord().getMapFields().size() == 1);
Assert.assertTrue(liveInstance.getRecord().getSimpleFields().size() == 5);
Assert.assertFalse(liveInstance.getSessionId().equals("value"));
Assert.assertFalse(liveInstance.getLiveInstance().equals("value"));
// //////////////////////////////////
MockParticipantManager manager2 =
new MockParticipantManager(ZK_ADDR, clusterName, "localhost_3");
manager2.setLiveInstanceInfoProvider(new provider(true));
manager2.connect();
accessor = manager2.getHelixDataAccessor();
liveInstance = accessor.getProperty(accessor.keyBuilder().liveInstance("localhost_3"));
Assert.assertTrue(liveInstance.getRecord().getListFields().size() == 1);
Assert.assertTrue(liveInstance.getRecord().getMapFields().size() == 1);
Assert.assertTrue(liveInstance.getRecord().getSimpleFields().size() == 5);
Assert.assertFalse(liveInstance.getSessionId().equals("value"));
Assert.assertFalse(liveInstance.getLiveInstance().equals("value"));
String sessionId = liveInstance.getSessionId();
ZkTestHelper.expireSession(manager2.getZkClient());
Thread.sleep(1000);
liveInstance = accessor.getProperty(accessor.keyBuilder().liveInstance("localhost_3"));
Assert.assertTrue(liveInstance.getRecord().getListFields().size() == 1);
Assert.assertTrue(liveInstance.getRecord().getMapFields().size() == 1);
Assert.assertTrue(liveInstance.getRecord().getSimpleFields().size() == 5);
Assert.assertFalse(liveInstance.getSessionId().equals("value"));
Assert.assertFalse(liveInstance.getLiveInstance().equals("value"));
Assert.assertFalse(sessionId.equals(liveInstance.getSessionId()));
System.out.println("END " + className + ".testLiveInstanceInfoProvider() at "
+ new Date(System.currentTimeMillis()));
}
@Test()
public void testAdministrator() throws Exception {
System.out.println("START " + className + ".testAdministrator() at "
+ new Date(System.currentTimeMillis()));
final String clusterName = CLUSTER_PREFIX + "_" + className + "_admin";
// basic test
if (_gZkClient.exists("/" + clusterName)) {
_gZkClient.deleteRecursive("/" + clusterName);
}
ZKHelixManager admin =
new ZKHelixManager(clusterName, null, InstanceType.ADMINISTRATOR, ZK_ADDR);
TestHelper.setupEmptyCluster(_gZkClient, clusterName);
admin.connect();
AssertJUnit.assertTrue(admin.isConnected());
HelixAdmin adminTool = admin.getClusterManagmentTool();
HelixConfigScope scope =
new HelixConfigScopeBuilder(ConfigScopeProperty.PARTITION).forCluster(clusterName)
.forResource("testResource").forPartition("testPartition").build();
Map<String, String> properties = new HashMap<String, String>();
properties.put("pKey1", "pValue1");
properties.put("pKey2", "pValue2");
adminTool.setConfig(scope, properties);
properties = adminTool.getConfig(scope, Arrays.asList("pKey1", "pKey2"));
Assert.assertEquals(properties.size(), 2);
Assert.assertEquals(properties.get("pKey1"), "pValue1");
Assert.assertEquals(properties.get("pKey2"), "pValue2");
admin.disconnect();
AssertJUnit.assertFalse(admin.isConnected());
System.out.println("END " + className + ".testAdministrator() at "
+ new Date(System.currentTimeMillis()));
}
}