Package org.sentrysoftware.metricshub.engine.common.helpers

Class NumberHelper

java.lang.Object

org.sentrysoftware.metricshub.engine.common.helpers.NumberHelper

public class NumberHelper
extends Object

Helper class for number-related operations.

Field Summary

Fields

Modifier and Type	Field	Description
static final Pattern	INTEGER_DETECT_PATTERN	Pattern to detect integers with trailing zeros.

Method Summary

Modifier and Type	Method	Description
static String	cleanUpEnumInput(String state)	Removes the fractional part and the decimal point of the given state if the fractional part contains only 0 after the decimal point.
static String	formatNumber(Number n)	Format the given value as String
static String	formatNumber(Number n, @NonNull String format)	Format the given value as String
static Double	parseDouble(String value, Double defaultValue)	Parse the given double value, if the parsing fails return the default value
static Integer	parseInt(String value, Integer defaultValue)	Parse the given integer value, if the parsing fails return the default value
static double	round(double value, int places, RoundingMode roundingMode)	Round the given double value using the specified decimal places

Methods inherited from class java.lang.Object

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

Field Details

INTEGER_DETECT_PATTERN

public static final Pattern INTEGER_DETECT_PATTERN

Pattern to detect integers with trailing zeros.

Method Details

parseDouble

public static Double parseDouble(String value,
 Double defaultValue)

Parse the given double value, if the parsing fails return the default value

Parameters:

value - The value we wish to parse

defaultValue - The default value to return if the parsing fails

Returns:

Double value

parseInt

public static Integer parseInt(String value,
 Integer defaultValue)

Parse the given integer value, if the parsing fails return the default value

Parameters:

value - The value we wish to parse

defaultValue - The default value to return if the parsing fails

Returns:

Integer value

round

public static double round(double value,
 int places,
 RoundingMode roundingMode)

Round the given double value using the specified decimal places

Parameters:

value - The value we wish to round

places - The required decimal places expected as positive

roundingMode - The rounding behavior used by the BigDecimal object for the numerical operations

Returns:

double value

cleanUpEnumInput

public static String cleanUpEnumInput(String state)

Removes the fractional part and the decimal point of the given state if the fractional part contains only 0 after the decimal point. The state is trimmed and converted to lower case

Parameters:

state - the value we wish to process

Returns:

String value

formatNumber

public static String formatNumber(Number n,
 @NonNull
 @NonNull String format)

Format the given value as String

Parameters:

n - numeric value to format

format - string format used to format decimal parts

Returns:

String value

formatNumber

public static String formatNumber(Number n)

Format the given value as String

Parameters:

n - numeric value to format

Returns:

String value