org.omnifaces.el.functions

Class Strings

java.lang.Object

org.omnifaces.el.functions.Strings

public final class Strings
extends Object

Collection of EL functions for string manipulation: of:abbreviate(), of:capitalize(), of:concat(), of:prettyURL(), of:encodeURL(), of:encodeURI(), of:encodeBase64(), of:escapeJS(), of:stripTags() and of:formatX().

Instead of of:formatX(), you can also use <o:outputFormat>.

Author:

Bauke Scholtz

Method Summary

Modifier and Type	Method and Description
static String	abbreviate(String text, int size) Abbreviate the given text on the given size limit with ellipsis.
static String	capitalize(String string) Capitalize the given string, i.e.
static String	concat(Object left, Object right) Concatenate the string representation of the given objects.
static String	encodeBase64(String string) Base64-encode the given string.
static String	encodeURI(String string) URI-encode the given string using UTF-8.
static String	encodeURL(String string) URL-encode the given string using UTF-8.
static String	escapeJS(String string) Escapes the given string according the JavaScript code rules.
static String	format1(String pattern, Object param1) Format the given string with 1 parameter using MessageFormat API.
static String	format2(String pattern, Object param1, Object param2) Format the given string with 2 parameters using MessageFormat API.
static String	format3(String pattern, Object param1, Object param2, Object param3) Format the given string with 3 parameters using MessageFormat API.
static String	format4(String pattern, Object param1, Object param2, Object param3, Object param4) Format the given string with 4 parameters using MessageFormat API.
static String	format5(String pattern, Object param1, Object param2, Object param3, Object param4, Object param5) Format the given string with 5 parameters using MessageFormat API.
static boolean	matches(String value, String pattern) Returns true if the given string matches the given pattern.
static String	parenthesize(Object object) Parenthesize the given object.
static String	prettyURL(String string) URL-prettify the given string.
static String	replaceAll(String value, String pattern, String replacement) Replace all matches of the given pattern on the given string with the given replacement.
static String	stripTags(String string) Remove XML tags from a string and return only plain text.

Methods inherited from class java.lang.Object

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

Method Detail

abbreviate

public static String abbreviate(String text,
                                int size)

Abbreviate the given text on the given size limit with ellipsis.

Parameters:

text - The text to be abbreviated.

size - The size limit of the text.

Returns:

The abbreviated text, or the unmodified text if it is shorter than the size.

concat

public static String concat(Object left,
                            Object right)

Concatenate the string representation of the given objects. This is useful when you don't know beforehand if one of the both hands is a string or is null, otherwise the new EL 2.2 #{bean.string1.concat(bean.string2)} can just be used.

Parameters:

left - The left hand.

right - The right hand.

Returns:

The concatenated strings.

capitalize

public static String capitalize(String string)

Capitalize the given string, i.e. uppercase the first character.

Parameters:

string - The string to be capitalized.

Returns:

The capitalized string.

Since:

1.1

parenthesize

public static String parenthesize(Object object)

Parenthesize the given object. This will only wrap the given object in parenthesis when it's not empty or zero.

Parameters:

object - The object to be parenthesized.

Returns:

The parenthesized object.

Since:

3.0

replaceAll

public static String replaceAll(String value,
                                String pattern,
                                String replacement)

Replace all matches of the given pattern on the given string with the given replacement.

Parameters:

value - The string to be replaced.

pattern - The regular expression pattern to be tested.

replacement - The string to be substituted for each match.

Returns:

True if the given string matches the given pattern.

Since:

1.5

See Also:

String.replaceAll(String, String)

matches

public static boolean matches(String value,
                              String pattern)

Returns true if the given string matches the given pattern.

Parameters:

value - The string to be matched.

pattern - The regular expression pattern to be tested.

Returns:

True if the given string matches the given pattern.

Since:

1.5

See Also:

String.matches(String)

prettyURL

public static String prettyURL(String string)

URL-prettify the given string. It performs the following tasks:

• Lowercase the string.
• Remove combining diacritical marks.
• Replace non-alphanumeric characters by hyphens.

This is useful when populating links with dynamic paths obtained from user controlled variables, such as blog titles.

Parameters:

string - The string to be prettified.

Returns:

The prettified string.

encodeURL

public static String encodeURL(String string)

URL-encode the given string using UTF-8. This is useful for cases where you can't use <f:param>.

Parameters:

string - The string to be URL-encoded.

Returns:

The URL-encoded string.

Throws:

UnsupportedOperationException - When this platform does not support UTF-8.

encodeURI

public static String encodeURI(String string)

URI-encode the given string using UTF-8. This is useful for cases where you need to embed path parameters in URLs.

Parameters:

string - The string to be URI-encoded.

Returns:

The URI-encoded string.

Throws:

UnsupportedOperationException - When this platform does not support UTF-8.

Since:

3.5

encodeBase64

public static String encodeBase64(String string)

Base64-encode the given string. This is useful for cases where you need to create data URLs.

Parameters:

string - The string to be Base64-encoded.

Returns:

The Base64-encoded string.

Since:

3.8

escapeJS

public static String escapeJS(String string)

Escapes the given string according the JavaScript code rules. This escapes among others the special characters, the whitespace, the quotes and the unicode characters. Useful whenever you want to use a Java string variable as a JavaScript string variable.

Parameters:

string - The string to be escaped according the JavaScript code rules.

Returns:

The escaped string according the JavaScript code rules.

stripTags

public static String stripTags(String string)

Remove XML tags from a string and return only plain text.

Parameters:

string - The string with XML tags.

Returns:

The string without XML tags.

Since:

3.7

format1

public static String format1(String pattern,
                             Object param1)

Format the given string with 1 parameter using MessageFormat API. The locale is obtained by Faces.getLocale(). Design notice: There are five formatX() methods, each taking 1 to 5 format parameters because EL functions do not support varargs methods nor overloaded function names.

Parameters:

pattern - The format pattern.

param1 - The first parameter.

Returns:

The formatted string.

See Also:

MessageFormat

format2

public static String format2(String pattern,
                             Object param1,
                             Object param2)

Format the given string with 2 parameters using MessageFormat API. The locale is obtained by Faces.getLocale(). Design notice: There are five formatX() methods, each taking 1 to 5 format parameters because EL functions do not support varargs methods nor overloaded function names.

Parameters:

pattern - The format pattern.

param1 - The first parameter.

param2 - The second parameter.

Returns:

The formatted string.

See Also:

format1(String, Object)

format3

public static String format3(String pattern,
                             Object param1,
                             Object param2,
                             Object param3)

Format the given string with 3 parameters using MessageFormat API. The locale is obtained by Faces.getLocale(). Design notice: There are five formatX() methods, each taking 1 to 5 format parameters because EL functions do not support varargs methods nor overloaded function names.

Parameters:

pattern - The format pattern.

param1 - The first parameter.

param2 - The second parameter.

param3 - The third parameter.

Returns:

The formatted string.

See Also:

format1(String, Object)

format4

public static String format4(String pattern,
                             Object param1,
                             Object param2,
                             Object param3,
                             Object param4)

Format the given string with 4 parameters using MessageFormat API. The locale is obtained by Faces.getLocale(). Design notice: There are five formatX() methods, each taking 1 to 5 format parameters because EL functions do not support varargs methods nor overloaded function names.

Parameters:

pattern - The format pattern.

param1 - The first parameter.

param2 - The second parameter.

param3 - The third parameter.

param4 - The fourth parameter.

Returns:

The formatted string.

See Also:

format1(String, Object)

format5

public static String format5(String pattern,
                             Object param1,
                             Object param2,
                             Object param3,
                             Object param4,
                             Object param5)

Format the given string with 5 parameters using MessageFormat API. The locale is obtained by Faces.getLocale(). Design notice: There are five formatX() methods, each taking 1 to 5 format parameters because EL functions do not support varargs methods nor overloaded function names.

Parameters:

pattern - The format pattern.

param1 - The first parameter.

param2 - The second parameter.

param3 - The third parameter.

param4 - The fourth parameter.

param5 - The fifth parameter.

Returns:

The formatted string.

See Also:

format1(String, Object)