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 class RPM implements Obd2Command.OutputSemanticHandler<Integer> { 24 @Override 25 public int getPid() { 26 return 0x0C; 27 } 28 29 @Override 30 public Optional<Integer> consume(IntegerArrayStream data) { 31 return data.hasAtLeast( 32 2, 33 theData -> Optional.of((theData.consume() * 256 + theData.consume()) / 4), 34 theData -> Optional.<Integer>empty()); 35 } 36 } 37
