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1   /**
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *     http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing, software
13   * distributed under the License is distributed on an "AS IS" BASIS,
14   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15   * See the License for the specific language governing permissions and
16   * limitations under the License.
17   */
18  
19  package org.apache.hadoop.hbase.regionserver.handler;
20  
21  import org.apache.hadoop.hbase.coordination.OpenRegionCoordination;
22  import org.apache.hadoop.hbase.HRegionInfo;
23  import org.apache.hadoop.hbase.HTableDescriptor;
24  import org.apache.hadoop.hbase.Server;
25  import org.apache.hadoop.hbase.classification.InterfaceAudience;
26  import org.apache.hadoop.hbase.executor.EventType;
27  import org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler;
28  import org.apache.hadoop.hbase.regionserver.RegionServerServices;
29  
30  /**
31   * Handles opening of a high priority region on a region server.
32   * <p>
33   * This is executed after receiving an OPEN RPC from the master or client.
34   */
35  @InterfaceAudience.Private
36  public class OpenPriorityRegionHandler extends OpenRegionHandler {
37    public OpenPriorityRegionHandler(Server server, RegionServerServices rsServices,
38        HRegionInfo regionInfo, HTableDescriptor htd, long masterSystemTime,
39        OpenRegionCoordination coordination, OpenRegionCoordination.OpenRegionDetails ord) {
40      super(server, rsServices, regionInfo, htd, EventType.M_RS_OPEN_PRIORITY_REGION, 
41         masterSystemTime, coordination, ord);
42    }
43  }