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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 printRailInfo(PowerStatsServiceProto proto) {
String csvHeader = new String();
for (int i = 0; i < proto.getRailInfoCount(); i++) {
RailInfoProto railInfo = proto.getRailInfo(i);
csvHeader += "Index" + ","
+ "Timestamp" + ","
+ railInfo.getRailName() + "/" + railInfo.getSubsysName() + ",";
}
System.out.println(csvHeader);
}
private static void printEnergyData(PowerStatsServiceProto proto) {
int railInfoCount = proto.getRailInfoCount();
if (railInfoCount > 0) {
int energyDataCount = proto.getEnergyDataCount();
int energyDataSetCount = energyDataCount / railInfoCount;
for (int i = 0; i < energyDataSetCount; i++) {
String csvRow = new String();
for (int j = 0; j < railInfoCount; j++) {
EnergyDataProto energyData = proto.getEnergyData(i * railInfoCount + j);
csvRow += energyData.getIndex() + ","
+ energyData.getTimestampMs() + ","
+ energyData.getEnergyUws() + ",";
}
System.out.println(csvRow);
}
} else {
System.out.println("Error: railInfoCount is zero");
}
}
private static void generateCsvFile(String pathToIncidentReport) {
try {
IncidentReportProto irProto =
IncidentReportProto.parseFrom(new FileInputStream(pathToIncidentReport));
if (irProto.hasIncidentReport()) {
PowerStatsServiceProto pssProto = irProto.getIncidentReport();
printRailInfo(pssProto);
printEnergyData(pssProto);
} else {
System.out.println("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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