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.quotas;
019
020import java.util.List;
021import org.apache.hadoop.hbase.Cell;
022import org.apache.hadoop.hbase.client.Mutation;
023import org.apache.hadoop.hbase.client.Result;
024import org.apache.yetus.audience.InterfaceAudience;
025import org.apache.yetus.audience.InterfaceStability;
026
027import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos;
028
029/**
030 * Noop operation quota returned when no quota is associated to the user/table
031 */
032@InterfaceAudience.Private
033@InterfaceStability.Evolving
034class NoopOperationQuota implements OperationQuota {
035  private static OperationQuota instance = new NoopOperationQuota();
036
037  private NoopOperationQuota() {
038    // no-op
039  }
040
041  public static OperationQuota get() {
042    return instance;
043  }
044
045  @Override
046  public void checkBatchQuota(int numWrites, int numReads, boolean isAtomic)
047    throws RpcThrottlingException {
048    // no-op
049  }
050
051  @Override
052  public void checkScanQuota(ClientProtos.ScanRequest scanRequest, long maxScannerResultSize,
053    long maxBlockBytesScanned, long prevBlockBytesScannedDifference) throws RpcThrottlingException {
054    // no-op
055  }
056
057  @Override
058  public void close() {
059    // no-op
060  }
061
062  @Override
063  public void addGetResult(final Result result) {
064    // no-op
065  }
066
067  @Override
068  public void addScanResult(final List<Result> results) {
069    // no-op
070  }
071
072  @Override
073  public void addMutation(final Mutation mutation) {
074    // no-op
075  }
076
077  @Override
078  public long getReadAvailable() {
079    return Long.MAX_VALUE;
080  }
081
082  @Override
083  public long getReadConsumed() {
084    return 0L;
085  }
086
087  @Override
088  public void addScanResultCells(List<Cell> cells) {
089    // no-op
090  }
091}