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
18 package org.apache.shardingsphere.infra.metadata.statistics;
19
20 import com.cedarsoftware.util.CaseInsensitiveMap;
21 import lombok.Getter;
22
23 import java.util.Collections;
24 import java.util.Map;
25
26 /**
27 * ShardingSphere statistics.
28 */
29 @Getter
30 public final class ShardingSphereStatistics {
31
32 private final Map<String, DatabaseStatistics> databaseStatisticsMap = Collections.synchronizedMap(new CaseInsensitiveMap<>());
33
34 /**
35 * Get database statistics.
36 *
37 * @param databaseName database name
38 * @return database statistics
39 */
40 public DatabaseStatistics getDatabaseStatistics(final String databaseName) {
41 return databaseStatisticsMap.get(databaseName);
42 }
43
44 /**
45 * Put database statistics.
46 *
47 * @param databaseName database name
48 * @param databaseStatistics database statistics
49 */
50 public void putDatabaseStatistics(final String databaseName, final DatabaseStatistics databaseStatistics) {
51 databaseStatisticsMap.put(databaseName, databaseStatistics);
52 }
53
54 /**
55 * Drop database statistics.
56 *
57 * @param databaseName database name
58 */
59 public void dropDatabaseStatistics(final String databaseName) {
60 databaseStatisticsMap.remove(databaseName);
61 }
62
63 /**
64 * Judge whether contains database statistics.
65 *
66 * @param databaseName database name
67 * @return contains database statistics or not
68 */
69 public boolean containsDatabaseStatistics(final String databaseName) {
70 return databaseStatisticsMap.containsKey(databaseName);
71 }
72 }