1 /*
2  * Copyright (C) 2024 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.google.android.msdl.logging
18 
19 import java.text.SimpleDateFormat
20 import java.util.Locale
21 
22 /** A logging component to keep track of recent [MSDLEvent]s */
23 interface MSDLHistoryLogger {
24 
25     /**
26      * Add an event to the history.
27      *
28      * @param[event] The event to log.
29      */
addEventnull30     fun addEvent(event: MSDLEvent)
31 
32     /** Get the history of latest events. */
33     fun getHistory(): List<MSDLEvent>
34 
35     companion object {
36 
37         const val HISTORY_SIZE = 20
38         val DATE_FORMAT = SimpleDateFormat("MM-dd HH:mm:ss.SSS", Locale.US)
39     }
40 }
41