de.uni_hildesheim.sse.monitoring.runtime.utils

Class Formatter

java.lang.Object

de.uni_hildesheim.sse.monitoring.runtime.utils.Formatter

public class Formatter
extends java.lang.Object

An utility class for some basic formattings.

Since:

1.00

Version:

1.00

Author:

Holger Eichelberger

Constructor Summary

Constructors

Modifier	Constructor and Description
private	Formatter() Prevents this class from being instantiated from outside.

Method Summary

Modifier and Type	Method and Description
static java.lang.String	formatPercentage(double fraction, double total) Formats a percentage calculated from fraction and total.
static java.lang.String	formatPercentage(double fraction, double total, java.lang.String prefix) Formats a percentage calculated from fraction and total.
static java.lang.String	formatPercentage(long fraction, long total) Formats a percentage calculated from fraction and total.
static java.lang.String	formatPercentage(long fraction, long total, java.lang.String prefix) Formats a percentage calculated from fraction and total.
static java.lang.String	formatPercentageOrValue(long fraction, long total, boolean showPercentage) Formats fraction or returns the percentage dependent on showPercentage.
static java.lang.String	nanoToUsualTime(long nano) Formats nano time to milliseconds, seconds or minutes.
static void	printStackTace() A helper method for printing the current stack trace in the order of call to the standard output stream.

Methods inherited from class java.lang.Object

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

Constructor Detail

Formatter

private Formatter()

Prevents this class from being instantiated from outside.

Since:

1.00

Method Detail

nanoToUsualTime

public static java.lang.String nanoToUsualTime(long nano)

Formats nano time to milliseconds, seconds or minutes.

Parameters:

nano - the time (difference) in nano seconds to be formatted

Returns:

the formatted time including a suffix indicating the time dimension

Since:

1.00

formatPercentageOrValue

public static java.lang.String formatPercentageOrValue(long fraction,
                                                       long total,
                                                       boolean showPercentage)

Formats fraction or returns the percentage dependent on showPercentage.

Parameters:

fraction - the part of total

total - a number representing 100%

showPercentage - if true show the percentage, if false the value of fraction

Returns:

the formatted number

Since:

1.00

formatPercentage

public static java.lang.String formatPercentage(double fraction,
                                                double total)

Formats a percentage calculated from fraction and total. Percentages are given in 2 digits after the floating point separator.

Parameters:

fraction - the part of total

total - a number representing 100%

Returns:

the formatted percentage

Since:

1.00

formatPercentage

public static java.lang.String formatPercentage(double fraction,
                                                double total,
                                                java.lang.String prefix)

Formats a percentage calculated from fraction and total. Percentages are given in 2 digits after the floating point separator.

Parameters:

fraction - the part of total

total - a number representing 100%

prefix - if not present (null), return fraction as value and percentage, else return the prefix and the percentage

Returns:

the formatted percentage

Since:

1.00

formatPercentage

public static java.lang.String formatPercentage(long fraction,
                                                long total)

Formats a percentage calculated from fraction and total. Percentages are given in 2 digits after the floating point separator.

Parameters:

fraction - the part of total

total - a number representing 100%

Returns:

the formatted percentage

Since:

1.00

formatPercentage

public static java.lang.String formatPercentage(long fraction,
                                                long total,
                                                java.lang.String prefix)

Formats a percentage calculated from fraction and total. Percentages are given in 2 digits after the floating point separator.

Parameters:

fraction - the part of total

total - a number representing 100%

prefix - if not present (null), return fraction as value and percentage, else return the prefix and the percentage

Returns:

the formatted percentage

Since:

1.00

printStackTace

public static void printStackTace()

A helper method for printing the current stack trace in the order of call to the standard output stream.

Since:

1.00