| /* |
| * Copyright (C) 2021 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.telemetry.publisher.statsconverters; |
| |
| import android.os.PersistableBundle; |
| |
| import com.android.car.telemetry.AtomsProto.Atom; |
| import com.android.car.telemetry.StatsLogProto.DimensionsValue; |
| |
| import java.util.List; |
| import java.util.Map; |
| |
| /** |
| * Class for converting atom data to {@link PersistableBundle} compatible format. Uses specific |
| * atom data converters that extend the {@link AbstractAtomConverter}. |
| */ |
| public class AtomListConverter { |
| // Map of pushed atom cases to corresponding atom converter. |
| private static Map<Atom.PushedCase, AbstractAtomConverter> sPushedCaseConverters = Map.of( |
| Atom.PushedCase.APP_START_MEMORY_STATE_CAPTURED, |
| new AppStartMemoryStateCapturedConverter(), |
| Atom.PushedCase.ACTIVITY_FOREGROUND_STATE_CHANGED, |
| new ActivityForegroundStateChangedConverter()); |
| |
| // Map of pulled atom cases to corresponding atom converter. |
| private static Map<Atom.PulledCase, AbstractAtomConverter> sPulledCaseConverters = Map.of( |
| Atom.PulledCase.PROCESS_MEMORY_STATE, new ProcessMemoryStateConverter(), |
| Atom.PulledCase.PROCESS_CPU_TIME, new ProcessCpuTimeConverter()); |
| |
| /** |
| * Converts a list of atoms to separate the atoms fields values into arrays to be put into the |
| * {@link PersistableBundle}. |
| * The list of atoms must contain atoms of same type. |
| * Only fields with types allowed in {@link PersistableBundle} are added to the bundle. |
| * |
| * @param atoms list of {@link Atom} of the same type. |
| * @param dimensionsFieldsIds field ids for fields that are encoded in {@link DimensionsValue}. |
| * @param dimensionsValuesList dimension value groups matching mDimensionsFieldsIds. |
| * @param hashToStringMap hash to string mapping for decoding the some dimension values. |
| * @return {@link PersistableBundle} that holds the converted atom fields. |
| * @throws StatsConversionException if atom field mismatch or can't convert dimension value. |
| */ |
| static PersistableBundle convert( |
| List<Atom> atoms, |
| List<Integer> dimensionsFieldsIds, |
| List<List<DimensionsValue>> dimensionsValuesList, |
| Map<Long, String> hashToStringMap) throws StatsConversionException { |
| // The atoms are either pushed or pulled type atoms. |
| if (atoms.get(0).getPushedCase() != Atom.PushedCase.PUSHED_NOT_SET) { |
| return sPushedCaseConverters.get(atoms.get(0).getPushedCase()).convert( |
| atoms, dimensionsFieldsIds, dimensionsValuesList, hashToStringMap); |
| } else { |
| return sPulledCaseConverters.get(atoms.get(0).getPulledCase()).convert( |
| atoms, dimensionsFieldsIds, dimensionsValuesList, hashToStringMap); |
| } |
| } |
| } |