| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.car.vehiclehal; |
| |
| import android.hardware.automotive.vehicle.V2_0.VehiclePropValue; |
| import android.util.JsonReader; |
| import android.util.Log; |
| import android.util.SparseArray; |
| import com.android.car.vehiclehal.Utils.SparseArrayIterator; |
| import java.io.IOException; |
| import java.util.Objects; |
| import java.util.Optional; |
| |
| public class DiagnosticJson { |
| public final String type; |
| public final long timestamp; |
| public final SparseArray<Integer> intValues; |
| public final SparseArray<Float> floatValues; |
| public final String dtc; |
| |
| DiagnosticJson( |
| String type, |
| long timestamp, |
| SparseArray<Integer> intValues, |
| SparseArray<Float> floatValues, |
| String dtc) { |
| this.type = type; |
| this.timestamp = timestamp; |
| this.intValues = Objects.requireNonNull(intValues); |
| this.floatValues = Objects.requireNonNull(floatValues); |
| this.dtc = dtc; |
| } |
| |
| VehiclePropValue build(DiagnosticEventBuilder builder) { |
| new SparseArrayIterator<>(intValues) |
| .forEach( |
| (SparseArrayIterator.SparseArrayEntry<Integer> entry) -> |
| builder.addIntSensor(entry.key, entry.value)); |
| new SparseArrayIterator<>(floatValues) |
| .forEach( |
| (SparseArrayIterator.SparseArrayEntry<Float> entry) -> |
| builder.addFloatSensor(entry.key, entry.value)); |
| builder.setDTC(dtc); |
| VehiclePropValue vehiclePropValue = builder.build(timestamp); |
| builder.clear(); |
| return vehiclePropValue; |
| } |
| |
| static class Builder { |
| public static final String TAG = Builder.class.getSimpleName(); |
| |
| static class WriteOnce<T> { |
| private Optional<T> mValue = Optional.empty(); |
| |
| void write(T value) { |
| if (mValue.isPresent()) throw new IllegalStateException("WriteOnce already stored"); |
| mValue = Optional.of(value); |
| } |
| |
| T get() { |
| if (!mValue.isPresent()) throw new IllegalStateException("WriteOnce never stored"); |
| return mValue.get(); |
| } |
| |
| T get(T defaultValue) { |
| return mValue.isPresent() ? mValue.get() : defaultValue; |
| } |
| } |
| |
| final WriteOnce<String> mType = new WriteOnce<>(); |
| final WriteOnce<Long> mTimestamp = new WriteOnce<>(); |
| final SparseArray<Integer> mIntValues = new SparseArray<>(); |
| final SparseArray<Float> mFloatValues = new SparseArray<>(); |
| final WriteOnce<String> mDtc = new WriteOnce<>(); |
| |
| private void readIntValues(JsonReader jsonReader) throws IOException { |
| while (jsonReader.hasNext()) { |
| int id = 0; |
| int value = 0; |
| jsonReader.beginObject(); |
| while (jsonReader.hasNext()) { |
| String name = jsonReader.nextName(); |
| if (name.equals("id")) id = jsonReader.nextInt(); |
| else if (name.equals("value")) value = jsonReader.nextInt(); |
| } |
| jsonReader.endObject(); |
| mIntValues.put(id, value); |
| } |
| } |
| |
| private void readFloatValues(JsonReader jsonReader) throws IOException { |
| while (jsonReader.hasNext()) { |
| int id = 0; |
| float value = 0.0f; |
| jsonReader.beginObject(); |
| while (jsonReader.hasNext()) { |
| String name = jsonReader.nextName(); |
| if (name.equals("id")) id = jsonReader.nextInt(); |
| else if (name.equals("value")) value = (float) jsonReader.nextDouble(); |
| } |
| jsonReader.endObject(); |
| mFloatValues.put(id, value); |
| } |
| } |
| |
| Builder(JsonReader jsonReader) throws IOException { |
| jsonReader.beginObject(); |
| while (jsonReader.hasNext()) { |
| String name = jsonReader.nextName(); |
| switch (name) { |
| case "type": |
| mType.write(jsonReader.nextString()); |
| break; |
| case "timestamp": |
| mTimestamp.write(jsonReader.nextLong()); |
| break; |
| case "intValues": |
| jsonReader.beginArray(); |
| readIntValues(jsonReader); |
| jsonReader.endArray(); |
| break; |
| case "floatValues": |
| jsonReader.beginArray(); |
| readFloatValues(jsonReader); |
| jsonReader.endArray(); |
| break; |
| case "stringValue": |
| mDtc.write(jsonReader.nextString()); |
| break; |
| default: |
| Log.w(TAG, "Unknown name in diagnostic JSON: " + name); |
| } |
| } |
| jsonReader.endObject(); |
| } |
| |
| DiagnosticJson build() { |
| return new DiagnosticJson( |
| mType.get(), mTimestamp.get(), mIntValues, mFloatValues, mDtc.get(null)); |
| } |
| } |
| |
| public static DiagnosticJson build(JsonReader jsonReader) throws IOException { |
| return new Builder(jsonReader).build(); |
| } |
| } |