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/*
* Copyright (C) 2020 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.server.powerstats;
import java.io.FileInputStream;
import java.io.IOException;
/**
* This class implements a utility to parse ODPM data out
* of incident reports contained in bugreports. The data
* is output to STDOUT in csv format.
*/
public class PowerStatsServiceProtoParser {
private static void printEnergyMeterInfo(PowerStatsServiceMeterProto proto) {
String csvHeader = new String();
for (int i = 0; i < proto.getChannelInfoCount(); i++) {
ChannelInfoProto energyMeterInfo = proto.getChannelInfo(i);
csvHeader += "Index,Timestamp," + energyMeterInfo.getChannelId()
+ "/" + energyMeterInfo.getChannelName() + ",";
}
System.out.println(csvHeader);
}
private static void printEnergyMeasurements(PowerStatsServiceMeterProto proto) {
int energyMeterInfoCount = proto.getChannelInfoCount();
if (energyMeterInfoCount > 0) {
int energyMeasurementCount = proto.getEnergyMeasurementCount();
int energyMeasurementSetCount = energyMeasurementCount / energyMeterInfoCount;
for (int i = 0; i < energyMeasurementSetCount; i++) {
String csvRow = new String();
for (int j = 0; j < energyMeterInfoCount; j++) {
EnergyMeasurementProto energyMeasurement =
proto.getEnergyMeasurement(i * energyMeterInfoCount + j);
csvRow += energyMeasurement.getChannelId() + ","
+ energyMeasurement.getTimestampMs() + ","
+ energyMeasurement.getEnergyUws() + ",";
}
System.out.println(csvRow);
}
} else {
System.out.println("Error: energyMeterInfoCount is zero");
}
}
private static void printEnergyConsumerId(PowerStatsServiceModelProto proto) {
String csvHeader = new String();
for (int i = 0; i < proto.getEnergyConsumerIdCount(); i++) {
EnergyConsumerIdProto energyConsumerId = proto.getEnergyConsumerId(i);
csvHeader += "Index,Timestamp," + energyConsumerId.getEnergyConsumerId() + ",";
}
System.out.println(csvHeader);
}
private static void printEnergyConsumerResults(PowerStatsServiceModelProto proto) {
int energyConsumerIdCount = proto.getEnergyConsumerIdCount();
if (energyConsumerIdCount > 0) {
int energyConsumerResultCount = proto.getEnergyConsumerResultCount();
int energyConsumerResultSetCount = energyConsumerResultCount / energyConsumerIdCount;
for (int i = 0; i < energyConsumerResultSetCount; i++) {
String csvRow = new String();
for (int j = 0; j < energyConsumerIdCount; j++) {
EnergyConsumerResultProto energyConsumerResult =
proto.getEnergyConsumerResult(i * energyConsumerIdCount + j);
csvRow += energyConsumerResult.getEnergyConsumerId() + ","
+ energyConsumerResult.getTimestampMs() + ","
+ energyConsumerResult.getEnergyUws() + ",";
}
System.out.println(csvRow);
}
} else {
System.out.println("Error: energyConsumerIdCount is zero");
}
}
private static void generateCsvFile(String pathToIncidentReport) {
try {
// Print power meter data.
IncidentReportMeterProto irMeterProto =
IncidentReportMeterProto.parseFrom(new FileInputStream(pathToIncidentReport));
if (irMeterProto.hasIncidentReport()) {
PowerStatsServiceMeterProto pssMeterProto = irMeterProto.getIncidentReport();
printEnergyMeterInfo(pssMeterProto);
printEnergyMeasurements(pssMeterProto);
} else {
System.out.println("Meter incident report not found. Exiting.");
}
// Print power model data.
IncidentReportModelProto irModelProto =
IncidentReportModelProto.parseFrom(new FileInputStream(pathToIncidentReport));
if (irModelProto.hasIncidentReport()) {
PowerStatsServiceModelProto pssModelProto = irModelProto.getIncidentReport();
printEnergyConsumerId(pssModelProto);
printEnergyConsumerResults(pssModelProto);
} else {
System.out.println("Model incident report not found. Exiting.");
}
} catch (IOException e) {
System.out.println("Unable to open incident report file: " + pathToIncidentReport);
System.out.println(e);
}
}
/**
* This is the entry point to parse the ODPM data out of incident reports.
* It requires one argument which is the path to the incident_report.proto
* file captured in a bugreport.
*
* @param args Path to incident_report.proto passed in from command line.
*/
public static void main(String[] args) {
if (args.length > 0) {
generateCsvFile(args[0]);
} else {
System.err.println("Usage: PowerStatsServiceProtoParser <incident_report.proto>");
System.err.println("Missing path to incident_report.proto. Exiting.");
System.exit(1);
}
}
}
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