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.android.car.obd2.commands;
18 
19 import com.android.car.obd2.IntegerArrayStream;
20 import com.android.car.obd2.Obd2Command;
21 import java.util.Optional;
22 
23 public abstract class FuelTrimCommand implements Obd2Command.OutputSemanticHandler<Float> {
24     @Override
consume(IntegerArrayStream data)25     public Optional<Float> consume(IntegerArrayStream data) {
26         return data.hasAtLeast(
27                 1,
28                 theData -> Optional.of(3 * theData.consume() / 1.28f - 100),
29                 theData -> Optional.<Float>empty());
30     }
31 
32     public static class Bank1ShortTermFuelTrimCommand extends FuelTrimCommand {
33         @Override
getPid()34         public int getPid() {
35             return 0x06;
36         }
37     }
38 
39     public static class Bank1LongTermFuelTrimCommand extends FuelTrimCommand {
40         @Override
getPid()41         public int getPid() {
42             return 0x07;
43         }
44     }
45 
46     public static class Bank2ShortTermFuelTrimCommand extends FuelTrimCommand {
47         @Override
getPid()48         public int getPid() {
49             return 0x08;
50         }
51     }
52 
53     public static class Bank2LongTermFuelTrimCommand extends FuelTrimCommand {
54         @Override
getPid()55         public int getPid() {
56             return 0x09;
57         }
58     }
59 }
60