/*
* 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.
*/
package org.apache.geode.distributed.internal.locks;
import org.apache.geode.distributed.DistributedLockService;
import org.apache.geode.distributed.internal.membership.*;
/**
* DLockGrantorHelper provides testing operations that are not normally exposed in the DLockGrantor.
*
* @since GemFire 5.0
*/
public class DLockGrantorHelper {
/**
* Forces DLockGrantor to <code>handleDepartureOf<code> specified member, which causes the grantor
* release all locks held by that member.
* <p>
* If the specified service instance is not the grantor, this method will return without
* performing anything.
*/
public static void forceDepartureOf(DistributedLockService dlock,
InternalDistributedMember member) {
DLockGrantor grantor = null;
try {
grantor = DLockGrantor.waitForGrantor((DLockService) dlock);
if (grantor != null) {
grantor.handleDepartureOf(member);
}
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
}
// public static void setReentrantSuspendLockingAllowed(DistributedLockService dlock,
// boolean value) {
// ((DLockService) dlock).setReentrantSuspendLockingAllowed(value);
// }
/** Returns true if the grantor has waiting lock requests for the named lock */
// TODO use this method
public static boolean hasWaitingRequests(DistributedLockService dlock, Object name) {
DLockGrantor grantor = null;
try {
grantor = DLockGrantor.waitForGrantor((DLockService) dlock);
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
if (grantor != null) {
return grantor.hasWaitingRequests(name);
}
return false;
}
/** Returns the DLockService.SUSPEND_LOCKING_TOKEN for testing */
public static Object getSuspendLockingToken() {
return DLockService.SUSPEND_LOCKING_TOKEN;
}
// /** Returns true if process is DM elder for this system. */
// public static boolean isElder() {
// InternalDistributedSystem sys =
// (InternalDistributedSystem) InternalDistributedSystem.getAnyInstance();
// DM dm = sys.getDistributionManager();
// return dm.isElder();
// }
// /** Changes grantorInfo in Elder state to require grantor recovery. */
// public static void forceGrantorRecovery(DistributedLockService dlock) {
// InternalDistributedSystem sys =
// (InternalDistributedSystem) InternalDistributedSystem.getAnyInstance();
// DistributionManager dm = (DistributionManager) sys.getDistributionManager();
// ElderState es = dm.getElderState();
// es.forceGrantorRecovery.dlock.getName();
// }
}