/**
* 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.hadoop.hbase.rsgroup;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.classification.InterfaceAudience;
import org.apache.hadoop.hbase.client.Connection;
import org.apache.hadoop.hbase.net.Address;
import org.apache.hadoop.hbase.protobuf.ProtobufUtil;
import org.apache.hadoop.hbase.protobuf.generated.HBaseProtos;
import org.apache.hadoop.hbase.protobuf.generated.RSGroupAdminProtos.AddRSGroupRequest;
import org.apache.hadoop.hbase.protobuf.generated.RSGroupAdminProtos.BalanceRSGroupRequest;
import org.apache.hadoop.hbase.protobuf.generated.RSGroupAdminProtos.GetRSGroupInfoOfServerRequest;
import org.apache.hadoop.hbase.protobuf.generated.RSGroupAdminProtos.GetRSGroupInfoOfServerResponse;
import org.apache.hadoop.hbase.protobuf.generated.RSGroupAdminProtos.GetRSGroupInfoOfTableRequest;
import org.apache.hadoop.hbase.protobuf.generated.RSGroupAdminProtos.GetRSGroupInfoOfTableResponse;
import org.apache.hadoop.hbase.protobuf.generated.RSGroupAdminProtos.GetRSGroupInfoRequest;
import org.apache.hadoop.hbase.protobuf.generated.RSGroupAdminProtos.GetRSGroupInfoResponse;
import org.apache.hadoop.hbase.protobuf.generated.RSGroupAdminProtos.ListRSGroupInfosRequest;
import org.apache.hadoop.hbase.protobuf.generated.RSGroupAdminProtos.MoveServersAndTablesRequest;
import org.apache.hadoop.hbase.protobuf.generated.RSGroupAdminProtos.MoveServersRequest;
import org.apache.hadoop.hbase.protobuf.generated.RSGroupAdminProtos.MoveTablesRequest;
import org.apache.hadoop.hbase.protobuf.generated.RSGroupAdminProtos.RSGroupAdminService;
import org.apache.hadoop.hbase.protobuf.generated.RSGroupAdminProtos.RemoveRSGroupRequest;
import org.apache.hadoop.hbase.protobuf.generated.RSGroupProtos;
import com.google.common.collect.Sets;
import com.google.protobuf.ServiceException;
/**
* Client used for managing region server group information.
*/
@InterfaceAudience.Private
class RSGroupAdminClient implements RSGroupAdmin {
private RSGroupAdminService.BlockingInterface stub;
public RSGroupAdminClient(Connection conn) throws IOException {
stub = RSGroupAdminService.newBlockingStub(conn.getAdmin().coprocessorService());
}
@Override
public RSGroupInfo getRSGroupInfo(String groupName) throws IOException {
try {
GetRSGroupInfoResponse resp = stub.getRSGroupInfo(null,
GetRSGroupInfoRequest.newBuilder().setRSGroupName(groupName).build());
if(resp.hasRSGroupInfo()) {
return RSGroupProtobufUtil.toGroupInfo(resp.getRSGroupInfo());
}
return null;
} catch (ServiceException e) {
throw ProtobufUtil.handleRemoteException(e);
}
}
@Override
public RSGroupInfo getRSGroupInfoOfTable(TableName tableName) throws IOException {
GetRSGroupInfoOfTableRequest request = GetRSGroupInfoOfTableRequest.newBuilder().setTableName(
ProtobufUtil.toProtoTableName(tableName)).build();
try {
GetRSGroupInfoOfTableResponse resp = stub.getRSGroupInfoOfTable(null, request);
if (resp.hasRSGroupInfo()) {
return RSGroupProtobufUtil.toGroupInfo(resp.getRSGroupInfo());
}
return null;
} catch (ServiceException e) {
throw ProtobufUtil.handleRemoteException(e);
}
}
@Override
public void moveServers(Set<Address> servers, String targetGroup) throws IOException {
Set<HBaseProtos.ServerName> hostPorts = Sets.newHashSet();
for(Address el: servers) {
hostPorts.add(HBaseProtos.ServerName.newBuilder()
.setHostName(el.getHostname())
.setPort(el.getPort())
.build());
}
MoveServersRequest request = MoveServersRequest.newBuilder()
.setTargetGroup(targetGroup)
.addAllServers(hostPorts)
.build();
try {
stub.moveServers(null, request);
} catch (ServiceException e) {
throw ProtobufUtil.handleRemoteException(e);
}
}
@Override
public void moveTables(Set<TableName> tables, String targetGroup) throws IOException {
MoveTablesRequest.Builder builder = MoveTablesRequest.newBuilder().setTargetGroup(targetGroup);
for(TableName tableName: tables) {
builder.addTableName(ProtobufUtil.toProtoTableName(tableName));
}
try {
stub.moveTables(null, builder.build());
} catch (ServiceException e) {
throw ProtobufUtil.handleRemoteException(e);
}
}
@Override
public void addRSGroup(String groupName) throws IOException {
AddRSGroupRequest request = AddRSGroupRequest.newBuilder().setRSGroupName(groupName).build();
try {
stub.addRSGroup(null, request);
} catch (ServiceException e) {
throw ProtobufUtil.handleRemoteException(e);
}
}
@Override
public void removeRSGroup(String name) throws IOException {
RemoveRSGroupRequest request = RemoveRSGroupRequest.newBuilder().setRSGroupName(name).build();
try {
stub.removeRSGroup(null, request);
} catch (ServiceException e) {
throw ProtobufUtil.handleRemoteException(e);
}
}
@Override
public boolean balanceRSGroup(String groupName) throws IOException {
BalanceRSGroupRequest request = BalanceRSGroupRequest.newBuilder()
.setRSGroupName(groupName).build();
try {
return stub.balanceRSGroup(null, request).getBalanceRan();
} catch (ServiceException e) {
throw ProtobufUtil.handleRemoteException(e);
}
}
@Override
public List<RSGroupInfo> listRSGroups() throws IOException {
try {
List<RSGroupProtos.RSGroupInfo> resp = stub.listRSGroupInfos(null,
ListRSGroupInfosRequest.getDefaultInstance()).getRSGroupInfoList();
List<RSGroupInfo> result = new ArrayList<>(resp.size());
for(RSGroupProtos.RSGroupInfo entry : resp) {
result.add(RSGroupProtobufUtil.toGroupInfo(entry));
}
return result;
} catch (ServiceException e) {
throw ProtobufUtil.handleRemoteException(e);
}
}
@Override
public RSGroupInfo getRSGroupOfServer(Address hostPort) throws IOException {
GetRSGroupInfoOfServerRequest request = GetRSGroupInfoOfServerRequest.newBuilder()
.setServer(HBaseProtos.ServerName.newBuilder()
.setHostName(hostPort.getHostname())
.setPort(hostPort.getPort())
.build())
.build();
try {
GetRSGroupInfoOfServerResponse resp = stub.getRSGroupInfoOfServer(null, request);
if (resp.hasRSGroupInfo()) {
return RSGroupProtobufUtil.toGroupInfo(resp.getRSGroupInfo());
}
return null;
} catch (ServiceException e) {
throw ProtobufUtil.handleRemoteException(e);
}
}
@Override
public void moveServersAndTables(Set<Address> servers, Set<TableName> tables, String targetGroup)
throws IOException {
MoveServersAndTablesRequest.Builder builder =
MoveServersAndTablesRequest.newBuilder().setTargetGroup(targetGroup);
for(Address el: servers) {
builder.addServers(HBaseProtos.ServerName.newBuilder()
.setHostName(el.getHostname())
.setPort(el.getPort())
.build());
}
for(TableName tableName: tables) {
builder.addTableName(ProtobufUtil.toProtoTableName(tableName));
}
try {
stub.moveServersAndTables(null, builder.build());
} catch (ServiceException e) {
throw ProtobufUtil.handleRemoteException(e);
}
}
}