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.HashMap;
021import java.util.Map;
022import org.apache.hadoop.hbase.TableName;
023import org.apache.hadoop.hbase.client.Connection;
024import org.apache.yetus.audience.InterfaceAudience;
025import org.slf4j.Logger;
026import org.slf4j.LoggerFactory;
027
028/**
029 * A SpaceQuotaSnapshotNotifier implementation for testing.
030 */
031@InterfaceAudience.Private
032public class SpaceQuotaSnapshotNotifierForTest implements SpaceQuotaSnapshotNotifier {
033  private static final Logger LOG =
034    LoggerFactory.getLogger(SpaceQuotaSnapshotNotifierForTest.class);
035
036  private final Map<TableName, SpaceQuotaSnapshot> tableQuotaSnapshots = new HashMap<>();
037
038  @Override
039  public void initialize(Connection conn) {
040  }
041
042  @Override
043  public synchronized void transitionTable(TableName tableName, SpaceQuotaSnapshot snapshot) {
044    if (LOG.isTraceEnabled()) {
045      LOG.trace("Persisting " + tableName + "=>" + snapshot);
046    }
047    tableQuotaSnapshots.put(tableName, snapshot);
048  }
049
050  public synchronized Map<TableName, SpaceQuotaSnapshot> copySnapshots() {
051    return new HashMap<>(this.tableQuotaSnapshots);
052  }
053
054  public synchronized void clearSnapshots() {
055    this.tableQuotaSnapshots.clear();
056  }
057}