Package org.apache.wayang.profiler.util

Class RrdAccessor

java.lang.Object

org.apache.wayang.profiler.util.RrdAccessor

All Implemented Interfaces:

AutoCloseable

public class RrdAccessor
extends Object
implements AutoCloseable

Utility to read from an RRD file.

Method Summary

Modifier and Type	Method	Description
void	close()
static long	convertToJavaTimestamp(long unixTimestamp)
static long	convertToUnixTimestamp(long javaTimestamp)
long	getLastUpdateMillis()
static RrdAccessor	open(String rrdPath)
double	query(String dsName, long startTimestamp, long endTimestamp, org.rrd4j.ConsolFun consolidationFunction)

Methods inherited from class java.lang.Object

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

Method Details

open

public static RrdAccessor open(String rrdPath)

query

public double query(String dsName,
 long startTimestamp,
 long endTimestamp,
 org.rrd4j.ConsolFun consolidationFunction)

getLastUpdateMillis

public long getLastUpdateMillis()

convertToUnixTimestamp

public static long convertToUnixTimestamp(long javaTimestamp)

convertToJavaTimestamp

public static long convertToJavaTimestamp(long unixTimestamp)

close

public void close()

Specified by:

close in interface AutoCloseable