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