| /* |
| * 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.internal.cache.partitioned.rebalance.model; |
| |
| import java.util.Collection; |
| import java.util.HashSet; |
| import java.util.Set; |
| import java.util.TreeSet; |
| |
| import org.apache.geode.internal.cache.persistence.PersistentMemberID; |
| |
| /** |
| * Represents a single bucket. |
| */ |
| public class Bucket implements Comparable<Bucket> { |
| private final int id; |
| private final Set<Member> membersHosting = new TreeSet<>(); |
| private final Set<PersistentMemberID> offlineMembers; |
| private float load; |
| private long bytes; |
| private float primaryLoad; |
| private int redundancy = -1; |
| private Member primary; |
| |
| public Bucket(int id) { |
| this(id, 0, 0, new HashSet<>()); |
| } |
| |
| public Bucket(int id, float load, long bytes, Set<PersistentMemberID> offlineMembers) { |
| this.id = id; |
| this.load = load; |
| this.bytes = bytes; |
| this.offlineMembers = offlineMembers; |
| } |
| |
| void changeLoad(float change) { |
| load += change; |
| } |
| |
| void changePrimaryLoad(float change) { |
| primaryLoad += change; |
| } |
| |
| void changeBytes(long change) { |
| bytes += change; |
| } |
| |
| void addOfflineMembers(Collection<? extends PersistentMemberID> members) { |
| offlineMembers.addAll(members); |
| } |
| |
| public void setPrimary(Member member, float primaryLoad) { |
| if (this.primary == PartitionedRegionLoadModel.INVALID_MEMBER) { |
| return; |
| } |
| if (this.primary != null) { |
| this.primary.removePrimary(this); |
| } |
| this.primary = member; |
| this.primaryLoad = primaryLoad; |
| if (primary != PartitionedRegionLoadModel.INVALID_MEMBER && primary != null) { |
| addMember(primary); |
| member.addPrimary(this); |
| } |
| } |
| |
| public boolean addMember(Member targetMember) { |
| if (this.getMembersHosting().add(targetMember)) { |
| this.redundancy++; |
| targetMember.addBucket(this); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| public boolean removeMember(Member targetMember) { |
| if (this.getMembersHosting().remove(targetMember)) { |
| if (targetMember == this.primary) { |
| setPrimary(null, 0); |
| } |
| this.redundancy--; |
| targetMember.removeBucket(this); |
| return true; |
| } |
| return false; |
| } |
| |
| public int getRedundancy() { |
| return this.redundancy + offlineMembers.size(); |
| } |
| |
| public int getOnlineRedundancy() { |
| return this.redundancy; |
| } |
| |
| public float getLoad() { |
| return this.load; |
| } |
| |
| public int getId() { |
| return this.id; |
| } |
| |
| public long getBytes() { |
| return this.bytes; |
| } |
| |
| @Override |
| public String toString() { |
| return "Bucket(id=" + getId() + ",load=" + load + ")"; |
| } |
| |
| public float getPrimaryLoad() { |
| return this.primaryLoad; |
| } |
| |
| public Set<Member> getMembersHosting() { |
| return this.membersHosting; |
| } |
| |
| public Member getPrimary() { |
| return this.primary; |
| } |
| |
| public Collection<? extends PersistentMemberID> getOfflineMembers() { |
| return offlineMembers; |
| } |
| |
| @Override |
| public int hashCode() { |
| return this.id; |
| } |
| |
| @Override |
| public boolean equals(Object other) { |
| if (!(other instanceof Bucket)) { |
| return false; |
| } |
| Bucket o = (Bucket) other; |
| return this.id == o.id; |
| } |
| |
| @Override |
| public int compareTo(Bucket other) { |
| return Integer.compare(this.id, other.id); |
| } |
| } |