1 /*
2  * Copyright 2018 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.bluetooth.hearingaid;
18 
19 import android.bluetooth.BluetoothDevice;
20 
21 /**
22  * Stack event sent via a callback from JNI to Java, or generated
23  * internally by the Hearing Aid State Machine.
24  */
25 public class HearingAidStackEvent {
26     // Event types for STACK_EVENT message (coming from native)
27     private static final int EVENT_TYPE_NONE = 0;
28     public static final int EVENT_TYPE_CONNECTION_STATE_CHANGED = 1;
29     public static final int EVENT_TYPE_DEVICE_AVAILABLE = 2;
30 
31     // Do not modify without updating the HAL bt_hearing_aid.h files.
32     // Match up with enum class ConnectionState of bt_hearing_aid.h.
33     static final int CONNECTION_STATE_DISCONNECTED = 0;
34     static final int CONNECTION_STATE_CONNECTING = 1;
35     static final int CONNECTION_STATE_CONNECTED = 2;
36     static final int CONNECTION_STATE_DISCONNECTING = 3;
37 
38     public int type;
39     public BluetoothDevice device;
40     public int valueInt1;
41     public long valueLong2;
42 
HearingAidStackEvent(int type)43     HearingAidStackEvent(int type) {
44         this.type = type;
45     }
46 
47     @Override
toString()48     public String toString() {
49         // event dump
50         StringBuilder result = new StringBuilder();
51         result.append("HearingAidStackEvent {type:" + eventTypeToString(type));
52         result.append(", device:" + device);
53         result.append(", value1:" + valueInt1);
54         result.append(", value2:" + valueLong2);
55         result.append("}");
56         return result.toString();
57     }
58 
eventTypeToString(int type)59     private static String eventTypeToString(int type) {
60         switch (type) {
61             case EVENT_TYPE_NONE:
62                 return "EVENT_TYPE_NONE";
63             case EVENT_TYPE_CONNECTION_STATE_CHANGED:
64                 return "EVENT_TYPE_CONNECTION_STATE_CHANGED";
65             case EVENT_TYPE_DEVICE_AVAILABLE:
66                 return "EVENT_TYPE_DEVICE_AVAILABLE";
67             default:
68                 return "EVENT_TYPE_UNKNOWN:" + type;
69         }
70     }
71 }
72