com.gemstone.gemfire.internal.cache.PartitionedRegionBucketMgmtHelper Maven / Gradle / Ivy
/*
* Copyright (c) 2010-2015 Pivotal Software, Inc. All rights reserved.
*
* Licensed 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. See accompanying
* LICENSE file.
*/
package com.gemstone.gemfire.internal.cache;
import java.util.*;
import com.gemstone.gemfire.distributed.internal.membership.InternalDistributedMember;
import com.gemstone.gemfire.internal.SetUtils;
import com.gemstone.gemfire.internal.cache.partitioned.Bucket;
/**
* This class encapsulates the Bucket Related heuristics/algos for a PR.
*
* @author rreja, modified by tnegi
*
*/
public class PartitionedRegionBucketMgmtHelper
{
/**
*
* @param b Bucket to evaluate
* @param moveSource
* @return true if it is allowed to be recovered
* @since gemfire59poc
*/
public static boolean bucketIsAllowedOnThisHost(Bucket b, InternalDistributedMember moveSource) {
if (b.getDistributionManager().enforceUniqueZone()) {
Set hostingMembers = b.getBucketOwners();
Set buddyMembers = b.getDistributionManager().getMembersInThisZone();
boolean intersects = SetUtils.intersectsWith(hostingMembers, buddyMembers);
boolean sourceIsOneThisHost = moveSource != null && buddyMembers.contains(moveSource);
return !intersects || sourceIsOneThisHost;
}
else {
return true;
}
}
}