1 /* 2 * Copyright (C) 2022 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.server.companion.presence; 18 19 import android.annotation.NonNull; 20 import android.bluetooth.BluetoothDevice; 21 22 /** Utilities for working with Bluetooth and BLE devices. */ 23 class Utils { 24 25 /** 26 * @return short String representation of {@link BluetoothDevice}. 27 */ btDeviceToString(@onNull BluetoothDevice btDevice)28 static String btDeviceToString(@NonNull BluetoothDevice btDevice) { 29 final StringBuilder sb = new StringBuilder(btDevice.getAddress()); 30 31 sb.append(" [name="); 32 final String name = btDevice.getName(); 33 if (name != null) { 34 sb.append('\'').append(name).append('\''); 35 } else { 36 sb.append("null"); 37 } 38 39 final String alias = btDevice.getAlias(); 40 if (alias != null) { 41 sb.append(", alias='").append(alias).append("'"); 42 } 43 44 return sb.append(']').toString(); 45 } 46 Utils()47 private Utils() { 48 } 49 } 50