com.bigdata.jini.util
Class ConfigMath

java.lang.Object
  com.bigdata.jini.util.ConfigMath

public class ConfigMath
extends Object

A utility class to help with Configurations.

Version:

$Id$

Author:

Bryan Thompson

Constructor Summary

ConfigMath()

Method Summary

static double	add(double a, double b)
static int	add(int a, int b)
static long	add(long a, long b)
static File	getAbsoluteFile(File file) Return the absolute file for the file.
static String	getAbsolutePath(File file) Return the absolute path for the file.
static String	getURIString(File file) Convert a file into an absolute URI and return its representation.
static long	m2ms(long m) Convert minutes to milliseconds.
static long	ms2ns(long ms) Convert milliseconds to nanoseconds.
static double	multiply(double a, double b)
static int	multiply(int a, int b)
static long	multiply(long a, long b)
static String	q(String v) Quote a string value.
static long	s2ms(long s) Convert seconds to milliseconds.
static long	s2ns(long s) Convert seconds to nanoseconds.
static String	toString(Object o) Useful for enums which can't be handled otherwise.

Methods inherited from class java.lang.Object

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

Constructor Detail

ConfigMath

public ConfigMath()

Method Detail

add

public static int add(int a,
                      int b)

add

public static long add(long a,
                       long b)

add

public static double add(double a,
                         double b)

multiply

public static int multiply(int a,
                           int b)

multiply

public static long multiply(long a,
                            long b)

multiply

public static double multiply(double a,
                              double b)

toString

public static String toString(Object o)

Useful for enums which can't be handled otherwise.

Parameters:

o -

Returns:

s2ns

public static long s2ns(long s)

Convert seconds to nanoseconds.

Parameters:

s - seconds.

Returns:

Nanoseconds.

ms2ns

public static long ms2ns(long ms)

Convert milliseconds to nanoseconds.

Parameters:

ms - Milliseconds.

Returns:

Nanoseconds.

s2ms

public static long s2ms(long s)

Convert seconds to milliseconds.

Parameters:

s - seconds.

Returns:

Milliseconds.

m2ms

public static long m2ms(long m)

Convert minutes to milliseconds.

Parameters:

m - minutes.

Returns:

Milliseconds.

getAbsolutePath

public static String getAbsolutePath(File file)

Return the absolute path for the file.

Parameters:

file - The file.

Returns:

The absolute path for that file.

getAbsoluteFile

public static File getAbsoluteFile(File file)

Return the absolute file for the file.

Parameters:

file - The file.

Returns:

The absolute file for that file.

getURIString

public static String getURIString(File file)

Convert a file into an absolute URI and return its representation.

Parameters:

file - The file.

Returns:

The representation of the corresponding absolute URI.

q

public static String q(String v)

Quote a string value.

Parameters:

v - The value.

Returns:

The quoted value.

TODO:

Use ConfigUtil.stringLiteral(String) instead?