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      1 /*
      2  * Copyright (C) 2016 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.hardware;
     18 
     19 import static java.lang.Integer.toHexString;
     20 
     21 import android.annotation.SystemApi;
     22 import android.os.Parcel;
     23 import android.os.Parcelable;
     24 
     25 /**
     26  * Stores values broken down by area for a vehicle property.
     27  *
     28  * @param <T> refer to Parcel#writeValue(Object) to get a list of all supported types. The class
     29  * should be visible to framework as default class loader is being used here.
     30  *
     31  * @hide
     32  */
     33 @SystemApi
     34 public class CarPropertyValue<T> implements Parcelable {
     35     private final int mPropertyId;
     36     private final int mAreaId;
     37     private final T mValue;
     38 
     39     public CarPropertyValue(int propertyId, T value) {
     40         this(propertyId, 0, value);
     41     }
     42 
     43     public CarPropertyValue(int propertyId, int areaId, T value) {
     44         mPropertyId = propertyId;
     45         mAreaId = areaId;
     46         mValue = value;
     47     }
     48 
     49     @SuppressWarnings("unchecked")
     50     public CarPropertyValue(Parcel in) {
     51         mPropertyId = in.readInt();
     52         mAreaId = in.readInt();
     53         mValue = (T) in.readValue(getClass().getClassLoader());
     54     }
     55 
     56     public static final Creator<CarPropertyValue> CREATOR = new Creator<CarPropertyValue>() {
     57         @Override
     58         public CarPropertyValue createFromParcel(Parcel in) {
     59             return new CarPropertyValue(in);
     60         }
     61 
     62         @Override
     63         public CarPropertyValue[] newArray(int size) {
     64             return new CarPropertyValue[size];
     65         }
     66     };
     67 
     68     @Override
     69     public int describeContents() {
     70         return 0;
     71     }
     72 
     73     @Override
     74     public void writeToParcel(Parcel dest, int flags) {
     75         dest.writeInt(mPropertyId);
     76         dest.writeInt(mAreaId);
     77         dest.writeValue(mValue);
     78     }
     79 
     80     public int getPropertyId() {
     81         return mPropertyId;
     82     }
     83 
     84     public int getAreaId() {
     85         return mAreaId;
     86     }
     87 
     88     public T getValue() {
     89         return mValue;
     90     }
     91 
     92     @Override
     93     public String toString() {
     94         return "CarPropertyValue{" +
     95                 "mPropertyId=0x" + toHexString(mPropertyId) +
     96                 ", mAreaId=0x" + toHexString(mAreaId) +
     97                 ", mValue=" + mValue +
     98                 '}';
     99     }
    100 }
    101