stomp.util
Class Bench

java.lang.Object
  |
  +--stomp.util.Bench

public class Bench

extends java.lang.Object

utility class for benchmarking code. Use as storage for times of critical events, and as a simple way to find out how many milliseconds passed between marked events. This class is especially useful for marking points in a stack trace which happen to exist in different objects.

Author:

Eric Lindauer

Constructor Summary

Bench()

Method Summary

static long	diff(int key, int key2)
static long	diff(java.lang.String key, java.lang.String key2)
static long	difference(java.lang.String from, java.lang.String to) returns the difference, in milliseconds, between the times the two marks were made in the bench.
static long	get(int key)
static long	get(java.lang.String key) returns the long in the bench under the given key.
static java.lang.Object	getKey()
static void	main(java.lang.String[] args)
static java.lang.String	mark() marks the current time in the bench.
static void	mark(int key)
static void	mark(java.lang.String key) marks the current time in the bench, under the given key.
static java.lang.String	mprint(java.lang.String from, java.lang.String to)
static java.lang.String	print(int key)
static void	print(int key, int key2)
static java.lang.String	print(java.lang.String key)
static void	print(java.lang.String key, java.lang.String key2) calls Log.debug with the difference between the two keys given
static void	tab()
static void	untab()

Methods inherited from class java.lang.Object

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

Constructor Detail

Bench

public Bench()

Method Detail

tab

public static void tab()

untab

public static void untab()

mark

public static java.lang.String mark()

marks the current time in the bench. Returns the unique key used to mark this time.

getKey

public static java.lang.Object getKey()

mark

public static void mark(java.lang.String key)

marks the current time in the bench, under the given key. NOTE: Overwrites any time that was already there.

get

public static long get(java.lang.String key)

returns the long in the bench under the given key. Throws NullPointerException if the given key was never set.

difference

public static long difference(java.lang.String from,
                              java.lang.String to)

returns the difference, in milliseconds, between the times the two marks were made in the bench. Throws NullPointerException if either of the two marks was never made.

mprint

public static java.lang.String mprint(java.lang.String from,
                                      java.lang.String to)

print

public static void print(java.lang.String key,
                         java.lang.String key2)

calls Log.debug with the difference between the two keys given

print

public static java.lang.String print(java.lang.String key)

print

public static java.lang.String print(int key)

print

public static void print(int key,
                         int key2)

diff

public static long diff(java.lang.String key,
                        java.lang.String key2)

See Also:

difference

mark

public static void mark(int key)

get

public static long get(int key)

diff

public static long diff(int key,
                        int key2)

main

public static void main(java.lang.String[] args)