Package net.obvj.performetrics.util

Enum DurationFormat

java.lang.Object

java.lang.Enum<DurationFormat>

net.obvj.performetrics.util.DurationFormat

All Implemented Interfaces:

Serializable, Comparable<DurationFormat>

public enum DurationFormat
extends Enum<DurationFormat>

Enumerates different duration format styles, each one with particular characteristics.

Examples:

• DurationFormat.FULL: 0:00:03.200000000
• DurationFormat.SHORT: 3.200000000 second(s)
• DurationFormat.SHORTER: 3.2 second(s)
• DurationFormat.ISO_8601: PT3.2S
• DurationFormat.LINUX: 0m3.200s

Since:

2.2.0

Author:

oswaldo.bapvic.jr

Enum Constant Summary

Enum Constants

Enum Constant	Description
FULL	Formats a time duration in the following format: H:M:S.ns.
ISO_8601	Formats a time duration using ISO-8601 seconds-based representation.
LINUX	Formats a time duration in Linux style, applying the form M'm':S.ms's'.
SHORT	Formats a time duration in any of the following formats: H:M:S.ns, M:S.ns, or S.ns, always choosing the shortest possible format.
SHORTER	Formats a time duration in any of the following formats: H:M:S.ns, M:S.ns, or S.ns, always choosing the shortest possible format and suppressing trailing zeros from the nanoseconds part.

Method Summary

Modifier and Type	Method	Description
String	format(Duration duration, boolean printLegend)	Formats a given duration.
Duration	parse(String string)	Parses a textual representation of a Duration.
static DurationFormat	valueOf(String name)	Returns the enum constant of this type with the specified name.
static DurationFormat[]	values()	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

compareTo, equals, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

FULL

public static final DurationFormat FULL

Formats a time duration in the following format: H:M:S.ns. For example: 1:59:59.987654321.

SHORT

public static final DurationFormat SHORT

Formats a time duration in any of the following formats: H:M:S.ns, M:S.ns, or S.ns, always choosing the shortest possible format.

Examples:

• 0.001000000 second(s)
• 3.200000000 second(s)
• 15:00.005890000 minute(s)

SHORTER

public static final DurationFormat SHORTER

Formats a time duration in any of the following formats: H:M:S.ns, M:S.ns, or S.ns, always choosing the shortest possible format and suppressing trailing zeros from the nanoseconds part.

Examples:

• 0.001 second(s)
• 3.2 second(s)
• 15:00.00589 minute(s)

ISO_8601

public static final DurationFormat ISO_8601

Formats a time duration using ISO-8601 seconds-based representation.

For example: PT8H6M12.345S, where:

• P is the duration designator (referred to as "period"), and is always placed at the beginning of the duration
• T is the time designator that precedes the time components
• H is the hour designator that follows the value for the number of hours
• M is the minute designator that follows the value for the number of minutes
• S is the second designator that follows the value for the number of seconds

Additional examples:

• PT0.001S
• PT3.2S
• PT15M0.00589S

Note: The printLegend flag has no effect in this format style.

LINUX

public static final DurationFormat LINUX

Formats a time duration in Linux style, applying the form M'm':S.ms's'.

Examples:

• 0m0.125s
• 0m4.999s
• 3m12.038s

Note: The printLegend flag has no effect in this format style.

Since:

2.4.0

Method Detail

values

public static DurationFormat[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (DurationFormat c : DurationFormat.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static DurationFormat valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

format

public String format(Duration duration,
                     boolean printLegend)

Formats a given duration.

Parameters:

duration - the Duration to be formatted, not null

printLegend - a flag indicating whether or not to include the legend in the generated string

Returns:

a string representing the specified duration, formatted

Throws:

NullPointerException - if the specified duration is null

parse

public Duration parse(String string)

Parses a textual representation of a Duration.

Parameters:

string - the string to parse, not null

Returns:

the parsed Duration, not null

Throws:

NullPointerException - if the specified string is null

IllegalArgumentException - if the string cannot be parsed as Duration

Since:

2.4.0