org.apache.ivy.util
Class StringUtils

java.lang.Object
  org.apache.ivy.util.StringUtils

public final class StringUtils
extends java.lang.Object

Convenient class used only for uncapitalization Usually use commons lang but here we do not want to have such a dependency for only one feature

Method Summary

static java.lang.String	decrypt(java.lang.String str) Decrypts a string encrypted with encrypt.
static java.lang.String	encrypt(java.lang.String str) Encrypt the given string in a way which anybody having access to this method algorithm can easily decrypt.
static java.lang.String	getErrorMessage(java.lang.Throwable t) Returns the error message associated with the given Throwable.
static java.lang.String	getStackTrace(java.lang.Exception e) Returns the exception stack trace as a String.
static java.lang.String	join(java.lang.Object[] objs, java.lang.String sep) Joins the given object array in one string, each separated by the given separator.
static java.lang.String	repeat(java.lang.String str, int count)
static java.lang.String	uncapitalize(java.lang.String string)

Methods inherited from class java.lang.Object

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

Method Detail

uncapitalize

public static java.lang.String uncapitalize(java.lang.String string)

getErrorMessage

public static java.lang.String getErrorMessage(java.lang.Throwable t)

Returns the error message associated with the given Throwable. The error message returned will try to be as precise as possible, handling cases where e.getMessage() is not meaningful, like NullPointerException for instance.

Parameters:

t - the throwable to get the error message from

Returns:

the error message of the given exception

getStackTrace

public static java.lang.String getStackTrace(java.lang.Exception e)

Returns the exception stack trace as a String.

Parameters:

e - the exception to get the stack trace from.

Returns:

the exception stack trace

join

public static java.lang.String join(java.lang.Object[] objs,
                                    java.lang.String sep)

Joins the given object array in one string, each separated by the given separator. Example:

 join(new String[] {"one", "two", "three"}, ", ") -> "one, two, three"
 

Parameters:

objs - The array of objects (toString() is used).

sep - The separator to use.

Returns:

The concatinated string.

encrypt

public static final java.lang.String encrypt(java.lang.String str)

Encrypt the given string in a way which anybody having access to this method algorithm can easily decrypt. This is useful only to avoid clear string storage in a file for example, but shouldn't be considered as a real mean of security. This only works with simple characters (char < 256).

Parameters:

str - the string to encrypt

Returns:

the encrypted version of the string

decrypt

public static final java.lang.String decrypt(java.lang.String str)

Decrypts a string encrypted with encrypt.

Parameters:

str - the encrypted string to decrypt

Returns:

The decrypted string.

repeat

public static java.lang.String repeat(java.lang.String str,
                                      int count)