com.github.wuic.util

Class StringUtils

java.lang.Object

com.github.wuic.util.StringUtils

public final class StringUtils
extends Object

Utility class providing helper constants and static methods around strings.

Since:

0.3.4

Version:

1.2

Author:

Guillaume DROUET

Field Summary

Fields

Modifier and Type	Field and Description
static char[]	HEX_ARRAY Hexadecimal possibles characters.

Method Summary

Methods

Modifier and Type	Method and Description
static String	merge(String[] merge, String separator) Merges all the given String into one String separated with the separator.
static String	removeTrailing(String str, String trailing) Removes all trailing String at the beginning and at the end of the specified String.
static String	simplifyPathWithDoubleDot(String toSimplify) Simplifies the given string representation of a path by removing substring like '/foo/bar/..
static String	simplifyPathWithDoubleDot(String toSimplify, String separator) Simplifies the given string representation of a path by removing substring like '/foo/bar/..
static String	toHexString(byte[] bytes) Converts bytes to hexadecimal String.

Methods inherited from class java.lang.Object

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

Field Detail

HEX_ARRAY

public static final char[] HEX_ARRAY

Hexadecimal possibles characters.

Method Detail

toHexString

public static String toHexString(byte[] bytes)

Converts bytes to hexadecimal String. See: http://stackoverflow.com/questions/9655181/convert-from-byte-array-to-hex-string-in-java

Parameters:

bytes - bytes

Returns:

hexadecimal string

simplifyPathWithDoubleDot

public static String simplifyPathWithDoubleDot(String toSimplify)

Simplifies the given string representation of a path by removing substring like '/foo/bar/../dir' by '/foo/dir', considering the '..' substring as a reference to the parent path and the IOUtils.STD_SEPARATOR as separator.

Parameters:

toSimplify - the path to simplify

Returns:

the simplified path, null if it is not possible to simplify

See Also:

simplifyPathWithDoubleDot(String, String)

simplifyPathWithDoubleDot

public static String simplifyPathWithDoubleDot(String toSimplify,
                               String separator)

Simplifies the given string representation of a path by removing substring like '/foo/bar/../dir' by '/foo/dir', considering the '..' substring as a reference to the parent path. In this case, the path separator must be '/'. Not that the separator must not contain regex keywords.

If a parent path is not found in the string, then null is returned. For instance, '../bar' can't be simplified.

Parameters:

toSimplify - the path to simplify

separator - the path separator

Returns:

the simplified path, null if it is not possible to simplify

removeTrailing

public static String removeTrailing(String str,
                    String trailing)

Removes all trailing String at the beginning and at the end of the specified String.

Parameters:

str - the string to be treated

trailing - the trailing string to remove

Returns:

the str without trailing string

merge

public static String merge(String[] merge,
           String separator)

Merges all the given String into one String separated with the separator.

For example, merge(new String[] { "foo", "oof", }, ":") results in "foo:oof".

If the separator is null, then no separator is inserted. If only one is specified, then this is directly returned. If no element is given, an empty String will be returned.

Finally, the method ensure that the separator has only one occurrence between words. For example : merge(new String[] { "foo:", ":oof", }, ":") results in "foo:oof".

Parameters:

merge - to merge

separator - the separator

Returns:

the result of merge operation