org.apache.camel.util

Class StringHelper

java.lang.Object

org.apache.camel.util.StringHelper

public final class StringHelper
extends Object

Helper methods for working with Strings.

Method Summary

Methods

Modifier and Type	Method and Description
static int	countChar(String s, char ch) Counts the number of times the given char is in the string
static boolean	hasStartToken(String expression, String language) Does the expression have the language start token?
static boolean	hasUpperCase(String text) Determines if the string has at least one letter in upper case
static boolean	isQuoted(String s)
static String	removeLeadingAndEndingQuotes(String s)
static String	removeQuotes(String s)
static String	replaceAll(String input, String from, String to) Replaces all the from tokens in the given input string.
static String	sanitize(String s) Ensures that s is friendly for a URL or file system.
static String	xmlEncode(String text) Encodes the text into safe XML by replacing < > and & with XML tokens

Methods inherited from class java.lang.Object

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

Method Detail

sanitize

public static String sanitize(String s)

Ensures that s is friendly for a URL or file system.

Parameters:

s - String to be sanitized.

Returns:

sanitized version of s.

Throws:

NullPointerException - if s is null.

countChar

public static int countChar(String s,
            char ch)

Counts the number of times the given char is in the string

Parameters:

s - the string

ch - the char

Returns:

number of times char is located in the string

removeQuotes

public static String removeQuotes(String s)

removeLeadingAndEndingQuotes

public static String removeLeadingAndEndingQuotes(String s)

isQuoted

public static boolean isQuoted(String s)

xmlEncode

public static String xmlEncode(String text)

Encodes the text into safe XML by replacing < > and & with XML tokens

Parameters:

text - the text

Returns:

the encoded text

hasUpperCase

public static boolean hasUpperCase(String text)

Determines if the string has at least one letter in upper case

Parameters:

text - the text

Returns:

true if at least one letter is upper case, false otherwise

hasStartToken

public static boolean hasStartToken(String expression,
                    String language)

Does the expression have the language start token?

Parameters:

expression - the expression

language - the name of the language, such as simple

Returns:

true if the expression contains the start token, false otherwise

replaceAll

public static String replaceAll(String input,
                String from,
                String to)

Replaces all the from tokens in the given input string.

This implementation is not recursive, not does it check for tokens in the replacement string.

Parameters:

input - the input string

from - the from string, must not be null or empty

to - the replacement string, must not be empty

Returns:

the replaced string, or the input string if no replacement was needed

Throws:

IllegalArgumentException - if the input arguments is invalid