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.client;
019
020import org.apache.hadoop.hbase.ServerName;
021import org.apache.yetus.audience.InterfaceAudience;
022
023/**
024 * Statistics update about a server/region
025 */
026@InterfaceAudience.Private
027public final class ResultStatsUtil {
028  private ResultStatsUtil() {
029    // private ctor for util class
030  }
031
032  /**
033   * Update the statistics for the specified region.
034   * @param tracker    tracker to update
035   * @param server     server from which the result was obtained
036   * @param regionName full region name for the statistics
037   * @param stats      statistics to update for the specified region
038   */
039  public static void updateStats(StatisticTrackable tracker, ServerName server, byte[] regionName,
040    RegionLoadStats stats) {
041    if (regionName != null && stats != null && tracker != null) {
042      tracker.updateRegionStats(server, regionName, stats);
043    }
044  }
045}