net.spy
Class SpyUtil

java.lang.Object
  net.spy.SpyUtil

public class SpyUtil

extends Object

Miscellaneous utilities.

Method Summary

static String	byteAToHexString(byte[] me) Get a string representing the hexidecimal value of the given byte array.
static String	deHTML(String contents) Remove HTML tags from a string.
static void	dumpThreads() Dump the current list of threads to stderr.
static Boolean	getBoolean(boolean b) Get a boolean instance.
static Boolean	getBoolean(String s) Returns a Boolean with a value represented by the specified String.
static String	getFileData(File file) Return the contents of a file as a string.
static String	getFileData(String file) Deprecated. use getFileData(File)
static String	getReaderAsString(Reader r) Load the contents of the given reader as a String.
static String	getStack(Exception e, int skip) Get a stack from an exception.
static Enumeration	getStackEnum(Exception e, int skip) Get a stack from an Exception.
static String	join(Collection c, String on) Join a Collection of Objects on a join string.
static String	join(Enumeration e, String on) Join an Enumeration of Strings on a join string.
static String	join(Iterator i, String on) Join an Iterator of Objects on a join string.
static void	runClass(String classname, String[] args) Class invoker (runs main(String[]) from a String array.
static Object[]	shuffle(Object[] in) Shuffle (unsort) an array.
static String[]	split(String on, String input) Split a string based on a tokenizer.

Methods inherited from class java.lang.Object

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

Method Detail

shuffle

public static Object[] shuffle(Object[] in)

Shuffle (unsort) an array.

Parameters:

in - The array of objects to shuffle.

split

public static String[] split(String on,
                             String input)

Split a string based on a tokenizer.

Parameters:

on - the string to split on (from StringTokenizer)

input - the string that needs to be split

See Also:

StringTokenizer

getFileData

public static String getFileData(String file)
                          throws IOException

Deprecated. use getFileData(File)

Throws:

IOException

getReaderAsString

public static String getReaderAsString(Reader r)
                                throws IOException

Load the contents of the given reader as a String.

Parameters:

r - a reader

Returns:

a String with the contents of the reader

Throws:

IOException

getFileData

public static String getFileData(File file)
                          throws IOException

Return the contents of a file as a string.

Parameters:

file - File to read.

Throws:

IOException - Thrown if the file cannot be opened.

join

public static String join(Enumeration e,
                          String on)

Join an Enumeration of Strings on a join string.

Parameters:

e - The enumeration

on - the join string

Returns:

a new String with all of the elements joined

join

public static String join(Iterator i,
                          String on)

Join an Iterator of Objects on a join string. Each object's toString() method will be used for stringification.

Parameters:

i - the iterator of Objects

on - the join string

Returns:

a new String with all of the elements joined

join

public static String join(Collection c,
                          String on)

Join a Collection of Objects on a join string. Each object's toString() method will be used for stringification.

Parameters:

c - the collection

on - the join string

Returns:

a String with all the elements joined

getStackEnum

public static Enumeration getStackEnum(Exception e,
                                       int skip)

Get a stack from an Exception.

Parameters:

e - Exception from which we'll be extracting the stack.

skip - Number of stack entries to skip (usually two or three)

getStack

public static String getStack(Exception e,
                              int skip)

Get a stack from an exception.

Parameters:

e - Exception from which we'll be extracting the stack.

skip - Number of stack entries to skip (usually two or three)

dumpThreads

public static void dumpThreads()

Dump the current list of threads to stderr.

byteAToHexString

public static String byteAToHexString(byte[] me)

Get a string representing the hexidecimal value of the given byte array.

Parameters:

me - the byte array that needs hexified.

runClass

public static void runClass(String classname,
                            String[] args)
                     throws Exception

Class invoker (runs main(String[]) from a String array.

Throws:

Exception

getBoolean

public static Boolean getBoolean(String s)

Returns a Boolean with a value represented by the specified String. The Boolean returned represents the value true if the string argument is not null and is equal, ignoring case, to the string "true".

Parameters:

s - the string

Returns:

the Boolean instance

getBoolean

public static Boolean getBoolean(boolean b)

Get a boolean instance.

Parameters:

b - the type of Boolean instance you want

Returns:

a shared instance of Boolean

deHTML

public static String deHTML(String contents)

Remove HTML tags from a string.

Parameters:

contents - the string whose HTML tags need removed.

Returns:

the deHTMLed string