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MockRegionServer.java
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MockRegionServer.java
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/*
* 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.master;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Random;
import java.util.TreeMap;
import java.util.concurrent.ConcurrentSkipListMap;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.hbase.Abortable;
import org.apache.hadoop.hbase.CellScannable;
import org.apache.hadoop.hbase.CellUtil;
import org.apache.hadoop.hbase.ChoreService;
import org.apache.hadoop.hbase.CoordinatedStateManager;
import org.apache.hadoop.hbase.ServerName;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.ZooKeeperConnectionException;
import org.apache.hadoop.hbase.client.ClusterConnection;
import org.apache.hadoop.hbase.client.Connection;
import org.apache.hadoop.hbase.client.RegionInfo;
import org.apache.hadoop.hbase.client.RegionInfoBuilder;
import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.client.Scan;
import org.apache.hadoop.hbase.client.locking.EntityLock;
import org.apache.hadoop.hbase.executor.ExecutorService;
import org.apache.hadoop.hbase.ipc.HBaseRpcController;
import org.apache.hadoop.hbase.ipc.RpcServerInterface;
import org.apache.hadoop.hbase.quotas.RegionServerRpcQuotaManager;
import org.apache.hadoop.hbase.quotas.RegionServerSpaceQuotaManager;
import org.apache.hadoop.hbase.regionserver.FlushRequester;
import org.apache.hadoop.hbase.regionserver.HRegion;
import org.apache.hadoop.hbase.regionserver.HeapMemoryManager;
import org.apache.hadoop.hbase.regionserver.Leases;
import org.apache.hadoop.hbase.regionserver.MetricsRegionServer;
import org.apache.hadoop.hbase.regionserver.Region;
import org.apache.hadoop.hbase.regionserver.RegionServerAccounting;
import org.apache.hadoop.hbase.regionserver.RegionServerServices;
import org.apache.hadoop.hbase.regionserver.SecureBulkLoadManager;
import org.apache.hadoop.hbase.regionserver.ServerNonceManager;
import org.apache.hadoop.hbase.regionserver.compactions.CompactionRequester;
import org.apache.hadoop.hbase.regionserver.throttle.ThroughputController;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.hbase.wal.WAL;
import org.apache.hadoop.hbase.zookeeper.MetaTableLocator;
import org.apache.hadoop.hbase.zookeeper.ZKWatcher;
import org.apache.zookeeper.KeeperException;
import org.apache.hadoop.hbase.shaded.com.google.protobuf.RpcController;
import org.apache.hadoop.hbase.shaded.com.google.protobuf.ServiceException;
import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.ClearCompactionQueuesRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.ClearCompactionQueuesResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.ClearRegionBlockCacheRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.ClearRegionBlockCacheResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.CloseRegionRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.CloseRegionResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.CompactRegionRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.CompactRegionResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.ExecuteProceduresRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.ExecuteProceduresResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.FlushRegionRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.FlushRegionResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetOnlineRegionRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetOnlineRegionResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetRegionInfoRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetRegionInfoResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetRegionLoadRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetRegionLoadResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetServerInfoRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetServerInfoResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetStoreFileRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetStoreFileResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.OpenRegionRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.OpenRegionResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.ReplicateWALEntryRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.ReplicateWALEntryResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.RollWALWriterRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.RollWALWriterResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.StopServerRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.StopServerResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.UpdateConfigurationRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.UpdateConfigurationResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.UpdateFavoredNodesRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.UpdateFavoredNodesResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.WarmupRegionRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.WarmupRegionResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.BulkLoadHFileRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.BulkLoadHFileResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.CleanupBulkLoadRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.CleanupBulkLoadResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.CoprocessorServiceRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.CoprocessorServiceResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.GetRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.GetResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.MultiRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.MutateRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.MutateResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.PrepareBulkLoadRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.PrepareBulkLoadResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.ScanRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.ScanResponse;
import org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.GetSpaceQuotaSnapshotsRequest;
import org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.GetSpaceQuotaSnapshotsResponse;
/**
* A mock RegionServer implementation.
* Use this when you can't bend Mockito to your liking (e.g. return null result
* when 'scanning' until master timesout and then return a coherent meta row
* result thereafter. Have some facility for faking gets and scans. See
* setGetResult(byte[], byte[], Result) for how to fill the backing data
* store that the get pulls from.
*/
class MockRegionServer implements AdminProtos.AdminService.BlockingInterface,
ClientProtos.ClientService.BlockingInterface, RegionServerServices {
private final ServerName sn;
private final ZKWatcher zkw;
private final Configuration conf;
private final Random random = new Random();
/**
* Map of regions to map of rows and {@link Result}. Used as data source when
* {@link #get(RpcController, GetRequest)} is called. Because we have a byte
* key, need to use TreeMap and provide a Comparator. Use
* {@link #setGetResult(byte[], byte[], Result)} filling this map.
*/
private final Map<byte [], Map<byte [], Result>> gets = new TreeMap<>(Bytes.BYTES_COMPARATOR);
/**
* Map of regions to results to return when scanning.
*/
private final Map<byte [], Result []> nexts = new TreeMap<>(Bytes.BYTES_COMPARATOR);
/**
* Data structure that holds regionname and index used scanning.
*/
class RegionNameAndIndex {
private final byte[] regionName;
private int index = 0;
RegionNameAndIndex(final byte[] regionName) {
this.regionName = regionName;
}
byte[] getRegionName() {
return this.regionName;
}
int getThenIncrement() {
int currentIndex = this.index;
this.index++;
return currentIndex;
}
}
/**
* Outstanding scanners and their offset into <code>nexts</code>
*/
private final Map<Long, RegionNameAndIndex> scannersAndOffsets = new HashMap<>();
/**
* @param sn Name of this mock regionserver
* @throws IOException
* @throws org.apache.hadoop.hbase.ZooKeeperConnectionException
*/
MockRegionServer(final Configuration conf, final ServerName sn)
throws ZooKeeperConnectionException, IOException {
this.sn = sn;
this.conf = conf;
this.zkw = new ZKWatcher(conf, sn.toString(), this, true);
}
/**
* Use this method filling the backing data source used by {@link #get(RpcController, GetRequest)}
* @param regionName
* @param row
* @param r
*/
void setGetResult(final byte [] regionName, final byte [] row, final Result r) {
Map<byte [], Result> value = this.gets.get(regionName);
if (value == null) {
// If no value already, create one. Needs to be treemap because we are
// using byte array as key. Not thread safe.
value = new TreeMap<>(Bytes.BYTES_COMPARATOR);
this.gets.put(regionName, value);
}
value.put(row, r);
}
/**
* Use this method to set what a scanner will reply as we next through
* @param regionName
* @param rs
*/
void setNextResults(final byte [] regionName, final Result [] rs) {
this.nexts.put(regionName, rs);
}
@Override
public boolean isStopped() {
return false;
}
@Override
public void abort(String why, Throwable e) {
throw new RuntimeException(this.sn + ": " + why, e);
}
@Override
public boolean isAborted() {
return false;
}
public long openScanner(byte[] regionName, Scan scan) throws IOException {
long scannerId = this.random.nextLong();
this.scannersAndOffsets.put(scannerId, new RegionNameAndIndex(regionName));
return scannerId;
}
public Result next(long scannerId) throws IOException {
RegionNameAndIndex rnai = this.scannersAndOffsets.get(scannerId);
int index = rnai.getThenIncrement();
Result [] results = this.nexts.get(rnai.getRegionName());
if (results == null) return null;
return index < results.length? results[index]: null;
}
public Result [] next(long scannerId, int numberOfRows) throws IOException {
// Just return one result whatever they ask for.
Result r = next(scannerId);
return r == null? null: new Result [] {r};
}
public void close(final long scannerId) throws IOException {
this.scannersAndOffsets.remove(scannerId);
}
@Override
public void stop(String why) {
this.zkw.close();
}
@Override
public void addRegion(HRegion r) {
}
@Override
public boolean removeRegion(HRegion r, ServerName destination) {
return false;
}
@Override
public HRegion getRegion(String encodedRegionName) {
return null;
}
@Override
public Configuration getConfiguration() {
return this.conf;
}
@Override
public ZKWatcher getZooKeeper() {
return this.zkw;
}
@Override
public CoordinatedStateManager getCoordinatedStateManager() {
return null;
}
@Override
public ClusterConnection getConnection() {
return null;
}
@Override
public MetaTableLocator getMetaTableLocator() {
return null;
}
@Override
public ServerName getServerName() {
return this.sn;
}
@Override
public boolean isStopping() {
return false;
}
@Override
public FlushRequester getFlushRequester() {
return null;
}
@Override
public CompactionRequester getCompactionRequestor() {
return null;
}
@Override
public RegionServerAccounting getRegionServerAccounting() {
return null;
}
@Override
public RegionServerRpcQuotaManager getRegionServerRpcQuotaManager() {
return null;
}
@Override
public void postOpenDeployTasks(PostOpenDeployContext context) throws KeeperException,
IOException {
}
@Override
public RpcServerInterface getRpcServer() {
return null;
}
@Override
public ConcurrentSkipListMap<byte[], Boolean> getRegionsInTransitionInRS() {
return null;
}
@Override
public FileSystem getFileSystem() {
return null;
}
@Override
public GetResponse get(RpcController controller, GetRequest request)
throws ServiceException {
byte[] regionName = request.getRegion().getValue().toByteArray();
Map<byte [], Result> m = this.gets.get(regionName);
GetResponse.Builder builder = GetResponse.newBuilder();
if (m != null) {
byte[] row = request.getGet().getRow().toByteArray();
builder.setResult(ProtobufUtil.toResult(m.get(row)));
}
return builder.build();
}
@Override
public MutateResponse mutate(RpcController controller, MutateRequest request)
throws ServiceException {
return null;
}
@Override
public ScanResponse scan(RpcController controller, ScanRequest request)
throws ServiceException {
ScanResponse.Builder builder = ScanResponse.newBuilder();
try {
if (request.hasScan()) {
byte[] regionName = request.getRegion().getValue().toByteArray();
builder.setScannerId(openScanner(regionName, null));
builder.setMoreResults(true);
}
else {
long scannerId = request.getScannerId();
Result result = next(scannerId);
if (result != null) {
builder.addCellsPerResult(result.size());
List<CellScannable> results = new ArrayList<>(1);
results.add(result);
((HBaseRpcController) controller).setCellScanner(CellUtil
.createCellScanner(results));
builder.setMoreResults(true);
}
else {
builder.setMoreResults(false);
close(scannerId);
}
}
} catch (IOException ie) {
throw new ServiceException(ie);
}
return builder.build();
}
@Override
public BulkLoadHFileResponse bulkLoadHFile(RpcController controller,
BulkLoadHFileRequest request) throws ServiceException {
return null;
}
@Override
public ClientProtos.CoprocessorServiceResponse execService(RpcController controller,
ClientProtos.CoprocessorServiceRequest request) throws ServiceException {
return null;
}
@Override
public ClientProtos.MultiResponse multi(
RpcController controller, MultiRequest request) throws ServiceException {
return null;
}
@Override
public GetRegionInfoResponse getRegionInfo(RpcController controller,
GetRegionInfoRequest request) throws ServiceException {
GetRegionInfoResponse.Builder builder = GetRegionInfoResponse.newBuilder();
builder.setRegionInfo(ProtobufUtil.toRegionInfo(RegionInfoBuilder.FIRST_META_REGIONINFO));
return builder.build();
}
@Override
public GetRegionLoadResponse getRegionLoad(RpcController controller,
GetRegionLoadRequest request) throws ServiceException {
GetRegionLoadResponse.Builder builder = GetRegionLoadResponse.newBuilder();
return builder.build();
}
@Override
public ClearCompactionQueuesResponse clearCompactionQueues(RpcController controller,
ClearCompactionQueuesRequest request) throws ServiceException {
return null;
}
@Override
public GetStoreFileResponse getStoreFile(RpcController controller,
GetStoreFileRequest request) throws ServiceException {
return null;
}
@Override
public GetOnlineRegionResponse getOnlineRegion(RpcController controller,
GetOnlineRegionRequest request) throws ServiceException {
return null;
}
@Override
public List<Region> getRegions() {
return null;
}
@Override
public OpenRegionResponse openRegion(RpcController controller,
OpenRegionRequest request) throws ServiceException {
return null;
}
@Override
public WarmupRegionResponse warmupRegion(RpcController controller,
WarmupRegionRequest request) throws ServiceException {
return null;
}
@Override
public CloseRegionResponse closeRegion(RpcController controller,
CloseRegionRequest request) throws ServiceException {
return null;
}
@Override
public FlushRegionResponse flushRegion(RpcController controller,
FlushRegionRequest request) throws ServiceException {
return null;
}
@Override
public CompactRegionResponse compactRegion(RpcController controller,
CompactRegionRequest request) throws ServiceException {
return null;
}
@Override
public ReplicateWALEntryResponse replicateWALEntry(RpcController controller,
ReplicateWALEntryRequest request) throws ServiceException {
return null;
}
@Override
public RollWALWriterResponse rollWALWriter(RpcController controller,
RollWALWriterRequest request) throws ServiceException {
return null;
}
@Override
public GetServerInfoResponse getServerInfo(RpcController controller,
GetServerInfoRequest request) throws ServiceException {
return null;
}
@Override
public StopServerResponse stopServer(RpcController controller,
StopServerRequest request) throws ServiceException {
return null;
}
@Override
public List<Region> getRegions(TableName tableName) throws IOException {
return null;
}
@Override
public Leases getLeases() {
return null;
}
@Override
public List<WAL> getWALs() throws IOException {
return Collections.emptyList();
}
@Override
public WAL getWAL(RegionInfo regionInfo) throws IOException {
return null;
}
@Override
public ExecutorService getExecutorService() {
return null;
}
@Override
public ChoreService getChoreService() {
return null;
}
@Override
public void updateRegionFavoredNodesMapping(String encodedRegionName,
List<org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.ServerName> favoredNodes) {
}
@Override
public InetSocketAddress[] getFavoredNodesForRegion(String encodedRegionName) {
return null;
}
@Override
public ReplicateWALEntryResponse
replay(RpcController controller, ReplicateWALEntryRequest request)
throws ServiceException {
return null;
}
@Override
public UpdateFavoredNodesResponse updateFavoredNodes(RpcController controller,
UpdateFavoredNodesRequest request) throws ServiceException {
return null;
}
@Override
public ServerNonceManager getNonceManager() {
return null;
}
@Override
public boolean reportRegionStateTransition(RegionStateTransitionContext context) {
return false;
}
@Override
public boolean registerService(com.google.protobuf.Service service) {
return false;
}
@Override
public CoprocessorServiceResponse execRegionServerService(RpcController controller,
CoprocessorServiceRequest request) throws ServiceException {
return null;
}
@Override
public UpdateConfigurationResponse updateConfiguration(
RpcController controller, UpdateConfigurationRequest request)
throws ServiceException {
return null;
}
@Override
public ClearRegionBlockCacheResponse clearRegionBlockCache(RpcController controller,
ClearRegionBlockCacheRequest request)
throws ServiceException {
return null;
}
@Override
public HeapMemoryManager getHeapMemoryManager() {
return null;
}
@Override
public double getCompactionPressure() {
return 0;
}
@Override
public ClusterConnection getClusterConnection() {
return null;
}
@Override
public ThroughputController getFlushThroughputController() {
return null;
}
@Override
public double getFlushPressure() {
return 0;
}
@Override
public MetricsRegionServer getMetrics() {
return null;
}
@Override
public EntityLock regionLock(List<RegionInfo> regionInfos, String description, Abortable abort)
throws IOException {
return null;
}
@Override
public PrepareBulkLoadResponse prepareBulkLoad(RpcController controller,
PrepareBulkLoadRequest request) throws ServiceException {
return null;
}
@Override
public CleanupBulkLoadResponse cleanupBulkLoad(RpcController controller,
CleanupBulkLoadRequest request) throws ServiceException {
return null;
}
@Override
public SecureBulkLoadManager getSecureBulkLoadManager() {
return null;
}
@Override
public void unassign(byte[] regionName) throws IOException {
}
@Override
public RegionServerSpaceQuotaManager getRegionServerSpaceQuotaManager() {
return null;
}
@Override
public ExecuteProceduresResponse executeProcedures(RpcController controller,
ExecuteProceduresRequest request) throws ServiceException {
return null;
}
@Override
public GetSpaceQuotaSnapshotsResponse getSpaceQuotaSnapshots(
RpcController controller, GetSpaceQuotaSnapshotsRequest request)
throws ServiceException {
return null;
}
@Override
public Connection createConnection(Configuration conf) throws IOException {
return null;
}
}