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.client.Mutation;
022import org.apache.hadoop.hbase.client.Result;
023import org.apache.yetus.audience.InterfaceAudience;
024import org.apache.yetus.audience.InterfaceStability;
025
026/**
027 * Noop operation quota returned when no quota is associated to the user/table
028 */
029@InterfaceAudience.Private
030@InterfaceStability.Evolving
031class NoopOperationQuota implements OperationQuota {
032  private static OperationQuota instance = new NoopOperationQuota();
033
034  private NoopOperationQuota() {
035    // no-op
036  }
037
038  public static OperationQuota get() {
039    return instance;
040  }
041
042  @Override
043  public void checkQuota(int numWrites, int numReads, int numScans) throws RpcThrottlingException {
044    // no-op
045  }
046
047  @Override
048  public void close() {
049    // no-op
050  }
051
052  @Override
053  public void addGetResult(final Result result) {
054    // no-op
055  }
056
057  @Override
058  public void addScanResult(final List<Result> results) {
059    // no-op
060  }
061
062  @Override
063  public void addMutation(final Mutation mutation) {
064    // no-op
065  }
066
067  @Override
068  public long getReadAvailable() {
069    return Long.MAX_VALUE;
070  }
071}