1 /*
2  * Copyright (C) 2019 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.android.internal.logging.testing;
18 
19 import com.android.internal.logging.InstanceId;
20 import com.android.internal.logging.UiEventLogger;
21 
22 import java.util.LinkedList;
23 import java.util.List;
24 
25 /**
26  * Fake logger that queues up logged events for inspection.
27  *
28  * @hide.
29  */
30 public class UiEventLoggerFake implements UiEventLogger {
31     /**
32      * Immutable data class used to record fake log events.
33      */
34     public static class FakeUiEvent {
35         public final int eventId;
36         public final int uid;
37         public final String packageName;
38         public final InstanceId instanceId;  // Used only for WithInstanceId variants
39         public final int position;  // Used only for Position variants
40 
FakeUiEvent(int eventId, int uid, String packageName)41         FakeUiEvent(int eventId, int uid, String packageName) {
42             this.eventId = eventId;
43             this.uid = uid;
44             this.packageName = packageName;
45             this.instanceId = null;
46             this.position = 0;
47         }
48 
FakeUiEvent(int eventId, int uid, String packageName, InstanceId instanceId)49         FakeUiEvent(int eventId, int uid, String packageName, InstanceId instanceId) {
50             this.eventId = eventId;
51             this.uid = uid;
52             this.packageName = packageName;
53             this.instanceId = instanceId;
54             this.position = 0;
55         }
56 
FakeUiEvent(int eventId, int uid, String packageName, InstanceId instanceId, int position)57         FakeUiEvent(int eventId, int uid, String packageName, InstanceId instanceId, int position) {
58             this.eventId = eventId;
59             this.uid = uid;
60             this.packageName = packageName;
61             this.instanceId = instanceId;
62             this.position = position;
63         }
64     }
65 
66     private List<FakeUiEvent> mLogs = new LinkedList<>();
67 
68     /** Returns list of all logging events recorded. */
getLogs()69     public List<FakeUiEvent> getLogs() {
70         return mLogs;
71     }
72     /** Returns number of logging events recorded. */
numLogs()73     public int numLogs() {
74         return mLogs.size();
75     }
76     /** Returns a particular logging event. */
get(int index)77     public FakeUiEvent get(int index) {
78         return mLogs.get(index);
79     }
80     /** Returns event id (as integer) of a particular logging event. */
eventId(int index)81     public int eventId(int index) {
82         return mLogs.get(index).eventId;
83     }
84 
85     @Override
log(UiEventEnum event)86     public void log(UiEventEnum event) {
87         log(event, 0, null);
88     }
89 
90     @Override
log(UiEventEnum event, int uid, String packageName)91     public void log(UiEventEnum event, int uid, String packageName) {
92         final int eventId = event.getId();
93         if (eventId > 0) {
94             mLogs.add(new FakeUiEvent(eventId, uid, packageName));
95         }
96     }
97 
98     @Override
logWithInstanceId(UiEventEnum event, int uid, String packageName, InstanceId instance)99     public void logWithInstanceId(UiEventEnum event, int uid, String packageName,
100             InstanceId instance) {
101         final int eventId = event.getId();
102         if (eventId > 0) {
103             mLogs.add(new FakeUiEvent(eventId, uid, packageName, instance));
104         }
105     }
106 
107     @Override
logWithPosition(UiEventEnum event, int uid, String packageName, int position)108     public void logWithPosition(UiEventEnum event, int uid, String packageName, int position) {
109         final int eventId = event.getId();
110         if (eventId > 0) {
111             mLogs.add(new FakeUiEvent(eventId, uid, packageName, null, position));
112         }
113     }
114 
115     @Override
logWithInstanceIdAndPosition(UiEventEnum event, int uid, String packageName, InstanceId instance, int position)116     public void logWithInstanceIdAndPosition(UiEventEnum event, int uid, String packageName,
117             InstanceId instance, int position) {
118         final int eventId = event.getId();
119         if (eventId > 0) {
120             mLogs.add(new FakeUiEvent(eventId, uid, packageName, instance, position));
121         }
122     }
123 }
124