org.bootchart.parser.linux
Class IostatParser

java.lang.Object
  org.bootchart.parser.linux.IostatParser

public class IostatParser

extends java.lang.Object

IostatParser parses log files produced by iostat. These log files contain information about hard disk utilization and throughput.

Constructor Summary

IostatParser()

Method Summary

static double	getMaxDiskTPut(java.util.List ioSampleList) Returns the maximum throughput seen in the iostat sample list.
static Stats	parseLog(java.io.InputStream is, java.util.Date endTime) Parses the iostat log file.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

IostatParser

public IostatParser()

Method Detail

parseLog

public static Stats parseLog(java.io.InputStream is,
                             java.util.Date endTime)
                      throws java.io.IOException,
                             java.text.ParseException

Parses the iostat log file. Consecutive iostat samples are parsed and returned in a list. Parsing stops when sample time exceeds endTime.

Parameters:

is - the input stream to parse

endTime - when to stop parsing

Returns:

disk I/O statistics

Throws:

java.io.IOException - if an I/O error occurs

java.text.ParseException - if a parsing error occurs

getMaxDiskTPut

public static double getMaxDiskTPut(java.util.List ioSampleList)

Returns the maximum throughput seen in the iostat sample list.

Parameters:

ioSampleList - iostat sample list

Returns:

maximum throughput