import org.HdrHistogram.Histogram;

import org.HdrHistogram.HistogramLogReader;

import org.kohsuke.args4j.CmdLineParser;

import org.kohsuke.args4j.Option;

import java.io.File;

import java.io.FileNotFoundException;

import java.nio.file.Paths;

import java.util.Locale;

public class HdrToCsv

{

@Option(name = "--input-file",

aliases = "-i",

usage = "Relative or absolute path to the input file to read",

required = true)

public void setInputFile(String fileName)

{

File in = Paths.get(fileName).toFile();

if (!in.exists())

{

throw new IllegalArgumentException(

"Input file " + fileName + " does not exist");

}

inputFile = in;

}

private File inputFile;

public static void main(String[] args)

{

HdrToCsv app = new HdrToCsv();

CmdLineParser parser = new CmdLineParser(app);

try

{

parser.parseArgument(args);

app.execute();

}

catch (Exception e)

{

System.out.println(e.getMessage());

parser.printUsage(System.out);

}

}

private void execute() throws FileNotFoundException

{

HistogramLogReader reader = new HistogramLogReader(inputFile);

System.out.println(

"#Timestamp,Throughput,Min,Avg,p50,p90,p95,p99,p999,p9999,Max");

while (reader.hasNext())

{

Histogram interval = (Histogram) reader.nextIntervalHistogram();

System.out.printf(Locale.US,

"%.3f,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d%n",

interval.getStartTimeStamp() / 1000.0,

interval.getTotalCount(), interval.getMinValue(),

(long) interval.getMean(),

interval.getValueAtPercentile(50),

interval.getValueAtPercentile(90),

interval.getValueAtPercentile(95),

interval.getValueAtPercentile(99),

interval.getValueAtPercentile(99.9),

interval.getValueAtPercentile(99.99),

interval.getMaxValue());

}

}

}