hbase-server/src/main/java/org/apache/hadoop/hbase/quotas/TableSpaceQuotaSnapshotNotifier.java

   1 /*
   2  * Licensed to the Apache Software Foundation (ASF) under one or more
   3  * contributor license agreements.  See the NOTICE file distributed with
   4  * this work for additional information regarding copyright ownership.
   5  * The ASF licenses this file to you under the Apache License, Version 2.0
   6  * (the "License"); you may not use this file except in compliance with
   7  * the License.  You may obtain a copy of the License at
   8  *
   9  * http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  */
  17 package org.apache.hadoop.hbase.quotas;
  18
  19 import java.io.IOException;
  20 import org.apache.hadoop.hbase.TableName;
  21 import org.apache.hadoop.hbase.client.Connection;
  22 import org.apache.hadoop.hbase.client.Put;
  23 import org.apache.hadoop.hbase.client.Table;
  24 import org.apache.yetus.audience.InterfaceAudience;
  25 import org.slf4j.Logger;
  26 import org.slf4j.LoggerFactory;
  27
  28 /**
  29  * A {@link SpaceQuotaSnapshotNotifier} which uses the hbase:quota table.
  30  */
  31 @InterfaceAudience.Private
  32 public class TableSpaceQuotaSnapshotNotifier implements SpaceQuotaSnapshotNotifier {
  33   private static final Logger LOG = LoggerFactory.getLogger(TableSpaceQuotaSnapshotNotifier.class);
  34
  35   private Connection conn;
  36
  37   @Override
  38   public void transitionTable(
  39       TableName tableName, SpaceQuotaSnapshot snapshot) throws IOException {
  40     final Put p = QuotaTableUtil.createPutForSpaceSnapshot(tableName, snapshot);
  41     try (Table quotaTable = conn.getTable(QuotaTableUtil.QUOTA_TABLE_NAME)) {
  42       if (LOG.isTraceEnabled()) {
  43         LOG.trace("Persisting a space quota snapshot " + snapshot + " for " + tableName);
  44       }
  45       quotaTable.put(p);
  46     }
  47   }
  48
  49   @Override
  50   public void initialize(Connection conn) {
  51     this.conn = conn;
  52   }
  53 }