| /* |
| * 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.management; |
| |
| import java.util.Map; |
| |
| import org.apache.geode.distributed.internal.locks.DLockService; |
| import org.apache.geode.management.internal.security.ResourceOperation; |
| import org.apache.geode.security.ResourcePermission.Operation; |
| import org.apache.geode.security.ResourcePermission.Resource; |
| |
| /** |
| * MBean that provides access to information and management functionality for a |
| * {@link DLockService}. Since any number of DLockService objects can be created by a member there |
| * may be 0 or more instances of this MBean available. |
| * |
| * @since GemFire 7.0 |
| * |
| */ |
| @ResourceOperation(resource = Resource.CLUSTER, operation = Operation.READ) |
| public interface LockServiceMXBean { |
| |
| /** |
| * Returns the name of the lock service. |
| */ |
| String getName(); |
| |
| /** |
| * Returns whether this is a distributed LockService. |
| * |
| * @return True is this is a distributed LockService, false otherwise. |
| */ |
| boolean isDistributed(); |
| |
| /** |
| * Returns the number of members using this LockService. |
| */ |
| int getMemberCount(); |
| |
| /** |
| * Returns of the name of the member which grants the lock. |
| */ |
| String fetchGrantorMember(); |
| |
| /** |
| * Returns a list of names of the members using this LockService. |
| */ |
| String[] getMemberNames(); |
| |
| /** |
| * Returns whether this member is the granter. |
| * |
| * @return True if this member is the granter, false otherwise. |
| */ |
| boolean isLockGrantor(); |
| |
| |
| /** |
| * Requests that this member become the granter. |
| */ |
| @ResourceOperation(resource = Resource.CLUSTER, operation = Operation.MANAGE) |
| void becomeLockGrantor(); |
| |
| /** |
| * Returns a map of the names of the objects being locked on and the names of the threads holding |
| * the locks. |
| */ |
| Map<String, String> listThreadsHoldingLock(); |
| |
| /** |
| * Returns a list of names of the locks held by this member's threads. |
| */ |
| String[] listHeldLocks(); |
| |
| } |