package com.linkedin.helix.manager.zk;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Date;
import java.util.List;
import org.I0Itec.zkclient.DataUpdater;
import org.testng.Assert;
import org.testng.annotations.Test;
import com.linkedin.helix.AccessOption;
import com.linkedin.helix.PropertyPathConfig;
import com.linkedin.helix.PropertyType;
import com.linkedin.helix.TestHelper;
import com.linkedin.helix.ZNRecord;
import com.linkedin.helix.ZNRecordUpdater;
import com.linkedin.helix.ZkUnitTestBase;
public class TestWtCacheAsyncOpSingleThread extends ZkUnitTestBase
{
@Test
public void testHappyPathZkCacheBaseDataAccessor()
{
String className = TestHelper.getTestClassName();
String methodName = TestHelper.getTestMethodName();
String clusterName = className + "_" + methodName;
System.out.println("START " + clusterName + " at "
+ new Date(System.currentTimeMillis()));
// init zkCacheDataAccessor
String curStatePath =
PropertyPathConfig.getPath(PropertyType.CURRENTSTATES,
clusterName,
"localhost_8901");
String extViewPath =
PropertyPathConfig.getPath(PropertyType.EXTERNALVIEW, clusterName);
ZkBaseDataAccessor<ZNRecord> baseAccessor =
new ZkBaseDataAccessor<ZNRecord>(_gZkClient);
baseAccessor.create(curStatePath, null, AccessOption.PERSISTENT);
List<String> cachePaths = Arrays.asList(curStatePath, extViewPath);
ZkCacheBaseDataAccessor<ZNRecord> accessor =
new ZkCacheBaseDataAccessor<ZNRecord>(baseAccessor,
null,
cachePaths,
null);
boolean ret = TestHelper.verifyZkCache(cachePaths, accessor._wtCache._cache, _gZkClient, false);
Assert.assertTrue(ret, "wtCache doesn't match data on Zk");
// create 10 current states
List<String> paths = new ArrayList<String>();
List<ZNRecord> records = new ArrayList<ZNRecord>();
for (int i = 0; i < 10; i++)
{
String path =
PropertyPathConfig.getPath(PropertyType.CURRENTSTATES,
clusterName,
"localhost_8901",
"session_0",
"TestDB" + i);
ZNRecord record = new ZNRecord("TestDB" + i);
paths.add(path);
records.add(record);
}
boolean[] success = accessor.createChildren(paths, records, AccessOption.PERSISTENT);
for (int i = 0; i < 10; i++)
{
Assert.assertTrue(success[i], "Should succeed in create: " + paths.get(i));
}
// verify wtCache
// TestHelper.printCache(accessor._wtCache);
ret = TestHelper.verifyZkCache(cachePaths, accessor._wtCache._cache, _gZkClient, false);
Assert.assertTrue(ret, "wtCache doesn't match data on Zk");
// update each current state 10 times
List<DataUpdater<ZNRecord>> updaters = new ArrayList<DataUpdater<ZNRecord>>();
for (int j = 0; j < 10; j++)
{
paths.clear();
updaters.clear();
for (int i = 0; i < 10; i++)
{
String path = curStatePath + "/session_0/TestDB" + i;
ZNRecord newRecord = new ZNRecord("TestDB" + i);
newRecord.setSimpleField("" + j, "" + j);
DataUpdater<ZNRecord> updater = new ZNRecordUpdater(newRecord);
paths.add(path);
updaters.add(updater);
}
success = accessor.updateChildren(paths, updaters, AccessOption.PERSISTENT);
for (int i = 0; i < 10; i++)
{
Assert.assertTrue(success[i], "Should succeed in update: " + paths.get(i));
}
}
// verify cache
// TestHelper.printCache(accessor._wtCache);
ret = TestHelper.verifyZkCache(cachePaths, accessor._wtCache._cache, _gZkClient, false);
Assert.assertTrue(ret, "wtCache doesn't match data on Zk");
// set 10 external views
paths.clear();
records.clear();
for (int i = 0; i < 10; i++)
{
String path =
PropertyPathConfig.getPath(PropertyType.EXTERNALVIEW, clusterName, "TestDB" + i);
ZNRecord record = new ZNRecord("TestDB" + i);
paths.add(path);
records.add(record);
}
success = accessor.setChildren(paths, records, AccessOption.PERSISTENT);
for (int i = 0; i < 10; i++)
{
Assert.assertTrue(success[i], "Should succeed in set: " + paths.get(i));
}
// verify wtCache
// TestHelper.printCache(accessor._wtCache);
ret = TestHelper.verifyZkCache(cachePaths, accessor._wtCache._cache, _gZkClient, false);
Assert.assertTrue(ret, "wtCache doesn't match data on Zk");
// get 10 external views
paths.clear();
records.clear();
for (int i = 0; i < 10; i++)
{
String path =
PropertyPathConfig.getPath(PropertyType.EXTERNALVIEW, clusterName, "TestDB" + i);
paths.add(path);
}
records = accessor.get(paths, null, 0);
for (int i = 0; i < 10; i++)
{
Assert.assertEquals(records.get(i).getId(), "TestDB" + i);
}
// getChildren
records.clear();
records = accessor.getChildren(extViewPath, null, 0);
for (int i = 0; i < 10; i++)
{
Assert.assertEquals(records.get(i).getId(), "TestDB" + i);
}
// exists
paths.clear();
for (int i = 0; i < 10; i++)
{
String path =
PropertyPathConfig.getPath(PropertyType.CURRENTSTATES,
clusterName,
"localhost_8901",
"session_0",
"TestDB" + i);
paths.add(path);
}
success = accessor.exists(paths, 0);
for (int i = 0; i < 10; i++)
{
Assert.assertTrue(success[i], "Should exits: TestDB" + i);
}
System.out.println("END " + clusterName + " at "
+ new Date(System.currentTimeMillis()));
}
@Test
public void testCreateFailZkCacheBaseAccessor()
{
String className = TestHelper.getTestClassName();
String methodName = TestHelper.getTestMethodName();
String clusterName = className + "_" + methodName;
System.out.println("START " + clusterName + " at "
+ new Date(System.currentTimeMillis()));
// init zkCacheDataAccessor
String curStatePath =
PropertyPathConfig.getPath(PropertyType.CURRENTSTATES,
clusterName,
"localhost_8901");
String extViewPath =
PropertyPathConfig.getPath(PropertyType.EXTERNALVIEW, clusterName);
ZkBaseDataAccessor<ZNRecord> baseAccessor =
new ZkBaseDataAccessor<ZNRecord>(_gZkClient);
baseAccessor.create(curStatePath, null, AccessOption.PERSISTENT);
ZkCacheBaseDataAccessor<ZNRecord> accessor =
new ZkCacheBaseDataAccessor<ZNRecord>(baseAccessor,
null,
Arrays.asList(curStatePath, extViewPath),
null);
Assert.assertEquals(accessor._wtCache._cache.size(), 1, "Should contain only:\n"
+ curStatePath);
Assert.assertTrue(accessor._wtCache._cache.containsKey(curStatePath));
// create 10 current states
List<String> paths = new ArrayList<String>();
List<ZNRecord> records = new ArrayList<ZNRecord>();
for (int i = 0; i < 10; i++)
{
String path =
PropertyPathConfig.getPath(PropertyType.CURRENTSTATES,
clusterName,
"localhost_8901",
"session_1",
"TestDB" + i);
ZNRecord record = new ZNRecord("TestDB" + i);
paths.add(path);
records.add(record);
}
boolean[] success = accessor.createChildren(paths, records, AccessOption.PERSISTENT);
for (int i = 0; i < 10; i++)
{
Assert.assertTrue(success[i], "Should succeed in create: " + paths.get(i));
}
// create same 10 current states again, should fail on NodeExists
success = accessor.createChildren(paths, records, AccessOption.PERSISTENT);
// System.out.println(Arrays.toString(success));
for (int i = 0; i < 10; i++)
{
Assert.assertFalse(success[i], "Should fail on create: " + paths.get(i));
}
System.out.println("END " + clusterName + " at "
+ new Date(System.currentTimeMillis()));
}
}