1 /* 2 * Copyright (C) 2017 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.car.obd2app; 18 19 import java.io.PrintWriter; 20 import java.io.StringWriter; 21 import java.time.LocalDateTime; 22 import java.time.format.DateTimeFormatter; 23 24 interface StatusNotification { notify(String status)25 void notify(String status); 26 notifyNoDongle()27 default void notifyNoDongle() { 28 notify("No OBD2 dongle paired. Go to Settings."); 29 } 30 notifyPaired(String deviceAddress)31 default void notifyPaired(String deviceAddress) { 32 notify("Paired to " + deviceAddress + ". Ready to capture data."); 33 } 34 notifyConnectionFailed()35 default void notifyConnectionFailed() { 36 notify("Unable to connect."); 37 } 38 notifyConnected(String deviceAddress)39 default void notifyConnected(String deviceAddress) { 40 notify("Connected to " + deviceAddress + ". Starting data capture."); 41 } 42 notifyDataCapture()43 default void notifyDataCapture() { 44 LocalDateTime now = LocalDateTime.now(); 45 DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern("MMMM dd yyyy hh:mm:ssa"); 46 notify("Successfully captured data at " + now.format(dateTimeFormatter)); 47 } 48 notifyException(Exception e)49 default void notifyException(Exception e) { 50 StringWriter stringWriter = new StringWriter(1024); 51 e.printStackTrace(new PrintWriter(stringWriter)); 52 notify("Exception occurred.\n" + stringWriter.toString()); 53 } 54 notifyDisconnected()55 default void notifyDisconnected() { 56 notify("Lost connection to remote end. Will try to reconnect."); 57 } 58 } 59