Enrico Granata | 3a3850c | 2017-03-27 12:40:13 -0700 | [diff] [blame] | 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.vehiclehal; |
| 18 | |
| 19 | import android.hardware.automotive.vehicle.V2_0.VehiclePropValue; |
| 20 | import android.util.JsonReader; |
| 21 | import android.util.Log; |
| 22 | import android.util.SparseArray; |
| 23 | import com.android.car.vehiclehal.Utils.SparseArrayIterator; |
| 24 | import java.io.IOException; |
| 25 | import java.util.Objects; |
| 26 | import java.util.Optional; |
| 27 | |
| 28 | public class DiagnosticJson { |
Enrico Granata | ce7ee20 | 2017-04-05 14:31:41 -0700 | [diff] [blame^] | 29 | public final String type; |
Enrico Granata | 3a3850c | 2017-03-27 12:40:13 -0700 | [diff] [blame] | 30 | public final long timestamp; |
| 31 | public final SparseArray<Integer> intValues; |
| 32 | public final SparseArray<Float> floatValues; |
| 33 | public final String dtc; |
| 34 | |
| 35 | DiagnosticJson( |
Enrico Granata | ce7ee20 | 2017-04-05 14:31:41 -0700 | [diff] [blame^] | 36 | String type, |
Enrico Granata | 3a3850c | 2017-03-27 12:40:13 -0700 | [diff] [blame] | 37 | long timestamp, |
| 38 | SparseArray<Integer> intValues, |
| 39 | SparseArray<Float> floatValues, |
| 40 | String dtc) { |
| 41 | this.type = type; |
| 42 | this.timestamp = timestamp; |
| 43 | this.intValues = Objects.requireNonNull(intValues); |
| 44 | this.floatValues = Objects.requireNonNull(floatValues); |
| 45 | this.dtc = dtc; |
| 46 | } |
| 47 | |
| 48 | VehiclePropValue build(DiagnosticEventBuilder builder) { |
| 49 | new SparseArrayIterator<>(intValues) |
| 50 | .forEach( |
| 51 | (SparseArrayIterator.SparseArrayEntry<Integer> entry) -> |
| 52 | builder.addIntSensor(entry.key, entry.value)); |
| 53 | new SparseArrayIterator<>(floatValues) |
| 54 | .forEach( |
| 55 | (SparseArrayIterator.SparseArrayEntry<Float> entry) -> |
| 56 | builder.addFloatSensor(entry.key, entry.value)); |
| 57 | builder.setDTC(dtc); |
| 58 | VehiclePropValue vehiclePropValue = builder.build(timestamp); |
| 59 | builder.clear(); |
| 60 | return vehiclePropValue; |
| 61 | } |
| 62 | |
| 63 | static class Builder { |
| 64 | public static final String TAG = Builder.class.getSimpleName(); |
| 65 | |
| 66 | static class WriteOnce<T> { |
| 67 | private Optional<T> mValue = Optional.empty(); |
| 68 | |
| 69 | void write(T value) { |
| 70 | if (mValue.isPresent()) throw new IllegalStateException("WriteOnce already stored"); |
| 71 | mValue = Optional.of(value); |
| 72 | } |
| 73 | |
| 74 | T get() { |
| 75 | if (!mValue.isPresent()) throw new IllegalStateException("WriteOnce never stored"); |
| 76 | return mValue.get(); |
| 77 | } |
| 78 | |
| 79 | T get(T defaultValue) { |
| 80 | return mValue.isPresent() ? mValue.get() : defaultValue; |
| 81 | } |
| 82 | } |
| 83 | |
Enrico Granata | ce7ee20 | 2017-04-05 14:31:41 -0700 | [diff] [blame^] | 84 | final WriteOnce<String> mType = new WriteOnce<>(); |
Enrico Granata | 3a3850c | 2017-03-27 12:40:13 -0700 | [diff] [blame] | 85 | final WriteOnce<Long> mTimestamp = new WriteOnce<>(); |
| 86 | final SparseArray<Integer> mIntValues = new SparseArray<>(); |
| 87 | final SparseArray<Float> mFloatValues = new SparseArray<>(); |
| 88 | final WriteOnce<String> mDtc = new WriteOnce<>(); |
| 89 | |
| 90 | private void readIntValues(JsonReader jsonReader) throws IOException { |
| 91 | while (jsonReader.hasNext()) { |
| 92 | int id = 0; |
| 93 | int value = 0; |
| 94 | jsonReader.beginObject(); |
| 95 | while (jsonReader.hasNext()) { |
| 96 | String name = jsonReader.nextName(); |
| 97 | if (name.equals("id")) id = jsonReader.nextInt(); |
| 98 | else if (name.equals("value")) value = jsonReader.nextInt(); |
| 99 | } |
| 100 | jsonReader.endObject(); |
| 101 | mIntValues.put(id, value); |
| 102 | } |
| 103 | } |
| 104 | |
| 105 | private void readFloatValues(JsonReader jsonReader) throws IOException { |
| 106 | while (jsonReader.hasNext()) { |
| 107 | int id = 0; |
| 108 | float value = 0.0f; |
| 109 | jsonReader.beginObject(); |
| 110 | while (jsonReader.hasNext()) { |
| 111 | String name = jsonReader.nextName(); |
| 112 | if (name.equals("id")) id = jsonReader.nextInt(); |
| 113 | else if (name.equals("value")) value = (float) jsonReader.nextDouble(); |
| 114 | } |
| 115 | jsonReader.endObject(); |
| 116 | mFloatValues.put(id, value); |
| 117 | } |
| 118 | } |
| 119 | |
| 120 | Builder(JsonReader jsonReader) throws IOException { |
| 121 | jsonReader.beginObject(); |
Enrico Granata | 3a3850c | 2017-03-27 12:40:13 -0700 | [diff] [blame] | 122 | while (jsonReader.hasNext()) { |
| 123 | String name = jsonReader.nextName(); |
| 124 | switch (name) { |
| 125 | case "type": |
Enrico Granata | ce7ee20 | 2017-04-05 14:31:41 -0700 | [diff] [blame^] | 126 | mType.write(jsonReader.nextString()); |
Enrico Granata | 3a3850c | 2017-03-27 12:40:13 -0700 | [diff] [blame] | 127 | break; |
| 128 | case "timestamp": |
| 129 | mTimestamp.write(jsonReader.nextLong()); |
| 130 | break; |
| 131 | case "intValues": |
| 132 | jsonReader.beginArray(); |
| 133 | readIntValues(jsonReader); |
| 134 | jsonReader.endArray(); |
| 135 | break; |
| 136 | case "floatValues": |
| 137 | jsonReader.beginArray(); |
| 138 | readFloatValues(jsonReader); |
| 139 | jsonReader.endArray(); |
| 140 | break; |
| 141 | case "stringValue": |
| 142 | mDtc.write(jsonReader.nextString()); |
| 143 | break; |
| 144 | default: |
| 145 | Log.w(TAG, "Unknown name in diagnostic JSON: " + name); |
| 146 | } |
| 147 | } |
| 148 | jsonReader.endObject(); |
| 149 | } |
| 150 | |
| 151 | DiagnosticJson build() { |
| 152 | return new DiagnosticJson( |
| 153 | mType.get(), mTimestamp.get(), mIntValues, mFloatValues, mDtc.get(null)); |
| 154 | } |
Enrico Granata | ce7ee20 | 2017-04-05 14:31:41 -0700 | [diff] [blame^] | 155 | } |
Enrico Granata | 3a3850c | 2017-03-27 12:40:13 -0700 | [diff] [blame] | 156 | |
Enrico Granata | ce7ee20 | 2017-04-05 14:31:41 -0700 | [diff] [blame^] | 157 | public static DiagnosticJson build(JsonReader jsonReader) throws IOException { |
| 158 | return new Builder(jsonReader).build(); |
Enrico Granata | 3a3850c | 2017-03-27 12:40:13 -0700 | [diff] [blame] | 159 | } |
| 160 | } |