org.onlab.util

Class Tools

java.lang.Object

org.onlab.util.Tools

public abstract class Tools
extends Object

Method Summary

Modifier and Type	Method and Description
static void	delay(int ms) Suspends the current thread for a specified number of millis.
static long	fromHex(String string) Converts a string from hex to long.
static ThreadFactory	minPriority(ThreadFactory factory) Returns a thread factory that produces threads with MIN_PRIORITY.
static ThreadFactory	namedThreads(String pattern) Returns a thread factory that produces threads named according to the supplied name pattern.
static List<String>	slurp(File path) Slurps the contents of a file into a list of strings, one per line.
static String	toHex(long value) Converts a long value to hex string; 16 wide and sans 0x.
static String	toHex(long value, int width) Converts a long value to hex string; 16 wide and sans 0x.

Methods inherited from class java.lang.Object

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

Method Detail

namedThreads

public static ThreadFactory namedThreads(String pattern)

Returns a thread factory that produces threads named according to the supplied name pattern.

Parameters:

pattern - name pattern

Returns:

thread factory

minPriority

public static ThreadFactory minPriority(ThreadFactory factory)

Returns a thread factory that produces threads with MIN_PRIORITY.

Parameters:

factory - backing ThreadFactory

Returns:

thread factory

fromHex

public static long fromHex(String string)

Converts a string from hex to long.

Parameters:

string - hex number in string form; sans 0x

Returns:

long value

toHex

public static String toHex(long value)

Converts a long value to hex string; 16 wide and sans 0x.

Parameters:

value - long value

Returns:

hex string

toHex

public static String toHex(long value,
                           int width)

Converts a long value to hex string; 16 wide and sans 0x.

Parameters:

value - long value

width - string width; zero padded

Returns:

hex string

delay

public static void delay(int ms)

Suspends the current thread for a specified number of millis.

Parameters:

ms - number of millis

slurp

public static List<String> slurp(File path)

Slurps the contents of a file into a list of strings, one per line.

Parameters:

path - file path

Returns:

file contents