com.pow2.util
Class Util

java.lang.Object
  com.pow2.util.Util

public class Util

extends Object

Utility class.

Author:

Luca Fossato

Constructor Summary

Util()

Method Summary

static String	addURLParameter(String URL, String parameter) Add a new parameter to the input URL string representation.
static String	addURLParameter(String URL, String paramName, String paramValue) Add a new parameter to the input URL string representation.
static String	dbString(String v) Delimit the input string with single quote characters (').
static String	dumpHashTable(Hashtable table, boolean html) Dump the content of the input hash table.
static String	getLastToken(String str, String tokenSeparator) Get the last token from the input string.
static boolean	isNull(String s) Test if the input string is null or empty (has 0 characters)
static boolean	isNull(String s, String val) Test if the input string is null or empty or if it's equal to the input val parameter.
static String	remove(String str, String until) Remove the substring starting from the first character of the input string to the input until string included.
static String	stackTrace(Throwable t) Return the string representation of the input exception stack trace.

Methods inherited from class java.lang.Object

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

Constructor Detail

Util

public Util()

Method Detail

getLastToken

public static String getLastToken(String str,
                                  String tokenSeparator)

Get the last token from the input string.

Parameters:

str - the string containing the token

tokenSeparator - the token separator string (i.e.: "'", ":", etc)

Returns:

the last token from the input string

isNull

public static boolean isNull(String s)

Test if the input string is null or empty (has 0 characters)

Parameters:

s - the input string to test

Returns:

true if the input string is null; false otherwise

isNull

public static boolean isNull(String s,
                             String val)

Test if the input string is null or empty or if it's equal to the input val parameter.

Parameters:

s - the input string to test

val - the value string to compare to s

Returns:

true if s is null, or empty, or if it's equal to the val string; false otherwise.

stackTrace

public static String stackTrace(Throwable t)

Return the string representation of the input exception stack trace.

Parameters:

t - the input throwable object

Returns:

the string representation of the stack trace of the input throwable object

dbString

public static String dbString(String v)

Delimit the input string with single quote characters (').

Parameters:

v - The new string value

Returns:

the input string delimited with single quote characters;

dumpHashTable

public static String dumpHashTable(Hashtable table,
                                   boolean html)

Dump the content of the input hash table.

Parameters:

table - table the hash table to dump

html - true to set the eof as "
\n", false to set it as "\n"

Returns:

Description of the Return Value

addURLParameter

public static String addURLParameter(String URL,
                                     String paramName,
                                     String paramValue)

Add a new parameter to the input URL string representation.

Parameters:

URL - the URL string representation

paramName - the parameter name

paramValue - the parameter value

addURLParameter

public static String addURLParameter(String URL,
                                     String parameter)

Add a new parameter to the input URL string representation.

Parameters:

URL - the URL string representation

parameter - the parameter string, encoded as "${paramName}=${paramValue}"

remove

public static String remove(String str,
                            String until)

Remove the substring starting from the first character of the input string to the input until string included.

Parameters:

str - the string to process

until - the string to reach (it will removed, too)

Returns:

the substring starting from the first characther after the input until string, or null if until token isn't found