001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.rsgroup;
019
020import java.io.IOException;
021import java.util.Arrays;
022import java.util.List;
023import java.util.Map;
024import java.util.Set;
025import java.util.SortedSet;
026import java.util.TreeSet;
027import org.apache.hadoop.hbase.DoNotRetryIOException;
028import org.apache.hadoop.hbase.ServerName;
029import org.apache.hadoop.hbase.TableName;
030import org.apache.hadoop.hbase.client.BalanceRequest;
031import org.apache.hadoop.hbase.client.BalanceResponse;
032import org.apache.hadoop.hbase.master.ServerManager;
033import org.apache.hadoop.hbase.net.Address;
034import org.apache.yetus.audience.InterfaceAudience;
035
036/**
037 * A dummy RSGroupInfoManager which only contains a default rs group.
038 */
039@InterfaceAudience.Private
040class DisabledRSGroupInfoManager implements RSGroupInfoManager {
041
042  private final ServerManager serverManager;
043
044  public DisabledRSGroupInfoManager(ServerManager serverManager) {
045    this.serverManager = serverManager;
046  }
047
048  @Override
049  public void start() {
050  }
051
052  @Override
053  public void addRSGroup(RSGroupInfo rsGroupInfo) throws IOException {
054    throw new DoNotRetryIOException("RSGroup is disabled");
055  }
056
057  @Override
058  public void removeRSGroup(String groupName) throws IOException {
059    throw new DoNotRetryIOException("RSGroup is disabled");
060  }
061
062  @Override
063  public void moveServers(Set<Address> servers, String targetGroupName) throws IOException {
064    throw new DoNotRetryIOException("RSGroup is disabled");
065  }
066
067  private SortedSet<Address> getOnlineServers() {
068    SortedSet<Address> onlineServers = new TreeSet<Address>();
069    serverManager.getOnlineServers().keySet().stream().map(ServerName::getAddress)
070      .forEach(onlineServers::add);
071    return onlineServers;
072  }
073
074  @Override
075  public RSGroupInfo getRSGroupOfServer(Address serverHostPort) throws IOException {
076    SortedSet<Address> onlineServers = getOnlineServers();
077    if (onlineServers.contains(serverHostPort)) {
078      return new RSGroupInfo(RSGroupInfo.DEFAULT_GROUP, onlineServers);
079    } else {
080      return null;
081    }
082  }
083
084  @Override
085  public RSGroupInfo getRSGroup(String groupName) throws IOException {
086    if (RSGroupInfo.DEFAULT_GROUP.equals(groupName)) {
087      return new RSGroupInfo(RSGroupInfo.DEFAULT_GROUP, getOnlineServers());
088    } else {
089      return null;
090    }
091  }
092
093  @Override
094  public List<RSGroupInfo> listRSGroups() throws IOException {
095    return Arrays.asList(new RSGroupInfo(RSGroupInfo.DEFAULT_GROUP, getOnlineServers()));
096  }
097
098  @Override
099  public boolean isOnline() {
100    return true;
101  }
102
103  @Override
104  public void removeServers(Set<Address> servers) throws IOException {
105  }
106
107  @Override
108  public RSGroupInfo getRSGroupForTable(TableName tableName) throws IOException {
109    return null;
110  }
111
112  @Override
113  public BalanceResponse balanceRSGroup(String groupName, BalanceRequest request)
114    throws IOException {
115    throw new DoNotRetryIOException("RSGroup is disabled");
116  }
117
118  @Override
119  public void setRSGroup(Set<TableName> tables, String groupName) throws IOException {
120    throw new DoNotRetryIOException("RSGroup is disabled");
121  }
122
123  @Override
124  public String determineRSGroupInfoForTable(TableName tableName) {
125    return RSGroupInfo.DEFAULT_GROUP;
126  }
127
128  @Override
129  public void renameRSGroup(String oldName, String newName) throws IOException {
130  }
131
132  @Override
133  public void updateRSGroupConfig(String groupName, Map<String, String> configuration)
134    throws IOException {
135    throw new DoNotRetryIOException("RSGroup is disabled");
136  }
137}