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Server functionality for HBase

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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.regionserver;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.CompatibilitySingletonFactory;
import org.apache.yetus.audience.InterfaceAudience;

/**
 * This is the glue between the HRegion and whatever hadoop shim layer is loaded
 * (hbase-hadoop1-compat or hbase-hadoop2-compat).
 */
@InterfaceAudience.Private
public class MetricsRegion {
  private final MetricsRegionSource source;
  private final MetricsUserAggregate userAggregate;
  private MetricsRegionWrapper regionWrapper;

  public MetricsRegion(final MetricsRegionWrapper wrapper, Configuration conf) {
    source = CompatibilitySingletonFactory.getInstance(MetricsRegionServerSourceFactory.class)
      .createRegion(wrapper);
    this.regionWrapper = wrapper;
    userAggregate = MetricsUserAggregateFactory.getMetricsUserAggregate(conf);
  }

  public void close() {
    source.close();
  }

  public void updatePut() {
    source.updatePut();
  }

  public void updateDelete() {
    source.updateDelete();
  }

  public void updateGet(final long t) {
    source.updateGet(t);
  }

  public void updateScanTime(final long t) {
    source.updateScanTime(t);
  }

  public void updateFilteredRecords() {
    userAggregate.updateFilteredReadRequests();
  }

  public void updateAppend() {
    source.updateAppend();
  }

  public void updateIncrement() {
    source.updateIncrement();
  }

  MetricsRegionSource getSource() {
    return source;
  }

  public MetricsRegionWrapper getRegionWrapper() {
    return regionWrapper;
  }

  public void updateReadRequestCount() {
    userAggregate.updateReadRequestCount();
  }
}