View Javadoc

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.rest;
20  
21  import org.apache.hadoop.hbase.metrics.BaseSource;
22  
23  /**
24   * Interface of the Metrics Source that will export data to Hadoop's Metrics2 system.
25   */
26  public interface MetricsRESTSource extends BaseSource {
27  
28    String METRICS_NAME = "REST";
29  
30    String CONTEXT = "rest";
31  
32    String JMX_CONTEXT = "REST";
33  
34    String METRICS_DESCRIPTION = "Metrics about the HBase REST server";
35  
36    String REQUEST_KEY = "requests";
37  
38    String SUCCESSFUL_GET_KEY = "successfulGet";
39  
40    String SUCCESSFUL_PUT_KEY = "successfulPut";
41  
42    String SUCCESSFUL_DELETE_KEY = "successfulDelete";
43  
44    String FAILED_GET_KEY = "failedGet";
45  
46    String FAILED_PUT_KEY = "failedPut";
47  
48    String FAILED_DELETE_KEY = "failedDelete";
49    
50    String SUCCESSFUL_SCAN_KEY = "successfulScanCount";
51    
52    String FAILED_SCAN_KEY = "failedScanCount";
53  
54    /**
55     * Increment the number of requests
56     *
57     * @param inc Ammount to increment by
58     */
59    void incrementRequests(int inc);
60  
61    /**
62     * Increment the number of successful Get requests.
63     *
64     * @param inc Number of successful get requests.
65     */
66    void incrementSucessfulGetRequests(int inc);
67  
68    /**
69     * Increment the number of successful Put requests.
70     *
71     * @param inc Number of successful put requests.
72     */
73    void incrementSucessfulPutRequests(int inc);
74  
75    /**
76     * Increment the number of successful Delete requests.
77     *
78     * @param inc
79     */
80    void incrementSucessfulDeleteRequests(int inc);
81  
82    /**
83     * Increment the number of failed Put Requests.
84     *
85     * @param inc Number of failed Put requests.
86     */
87    void incrementFailedPutRequests(int inc);
88  
89    /**
90     * Increment the number of failed Get requests.
91     *
92     * @param inc The number of failed Get Requests.
93     */
94    void incrementFailedGetRequests(int inc);
95  
96    /**
97     * Increment the number of failed Delete requests.
98     *
99     * @param inc The number of failed delete requests.
100    */
101   void incrementFailedDeleteRequests(int inc);
102   
103   /**
104    * Increment the number of successful scan requests.
105    *
106    * @param inc Number of successful scan requests.
107    */
108   void incrementSucessfulScanRequests(final int inc);
109   
110   /**
111    * Increment the number failed scan requests.
112    *
113    * @param inc the inc
114    */
115   void incrementFailedScanRequests(final int inc);
116 }