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      1 /*
      2  * Copyright (C) 2015 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 android.car;
     18 
     19 import android.car.settings.CarSettings;
     20 
     21 /**
     22  * Internal helper utilities
     23  * @hide
     24  */
     25 public final class CarApiUtil {
     26 
     27     /**
     28      * CarService throws IllegalStateException with this message is re-thrown as
     29      * {@link CarNotConnectedException}.
     30      *
     31      * @hide
     32      */
     33     public static final String CAR_NOT_CONNECTED_EXCEPTION_MSG = "CarNotConnected";
     34 
     35     /**
     36      * Re-throw IllegalStateException from CarService with
     37      * {@link #CAR_NOT_CONNECTED_EXCEPTION_MSG} message as {@link CarNotConnectedException}.
     38      * exception.
     39      *
     40      * @param e exception from CarService
     41      * @throws CarNotConnectedException if the connection to the car service has been lost.
     42      * @hide
     43      */
     44     public static void checkCarNotConnectedExceptionFromCarService(IllegalStateException e)
     45             throws CarNotConnectedException {
     46         if (e.getMessage().equals(CAR_NOT_CONNECTED_EXCEPTION_MSG)) {
     47             throw new CarNotConnectedException();
     48         } else {
     49             throw e;
     50         }
     51     }
     52 
     53     /** do not use */
     54     private CarApiUtil() {};
     55 
     56     /**
     57      * Return an integer array of {hour, minute} from the String presentation of the garage mode
     58      * time.
     59      *
     60      * @hide
     61      */
     62     public static int[] decodeGarageTimeSetting(String time) {
     63         int[] result = CarSettings.DEFAULT_GARAGE_MODE_WAKE_UP_TIME;
     64         if (time == null) {
     65             return result;
     66         }
     67 
     68         String[] tokens = time.split(":");
     69         if (tokens.length != 2) {
     70             return result;
     71         }
     72         try {
     73             result[0] = Integer.valueOf(tokens[0]);
     74             result[1] = Integer.valueOf(tokens[1]);
     75         } catch (NumberFormatException e) {
     76             return CarSettings.DEFAULT_GARAGE_MODE_WAKE_UP_TIME;
     77         }
     78         if (result[0] >= 0 && result[0] <= 23 && result[1] >= 0 && result[1] <= 59) {
     79             return result;
     80         } else {
     81             return CarSettings.DEFAULT_GARAGE_MODE_WAKE_UP_TIME;
     82         }
     83     }
     84 
     85     /**
     86      * Return a String presentation of the garage mode "hour:minute".
     87      *
     88      * @hide
     89      */
     90     public static String encodeGarageTimeSetting(int hour, int min) {
     91         return hour + ":" + min;
     92     }
     93 }
     94