Package org.apache.tomcat.util.buf

Class StringUtils

java.lang.Object

org.apache.tomcat.util.buf.StringUtils

public final class StringUtils
extends Object

Utility methods to build a separated list from a given set (not java.util.Set) of inputs and return that list as a string or append it to an existing StringBuilder. If the given set is null or empty, an empty string will be returned.

Method Summary

Modifier and Type	Method	Description
static void	join(Iterable<String> iterable, char separator, StringBuilder sb)
static <T> void	join(Iterable<T> iterable, char separator, Function<T,String> function, StringBuilder sb)
static String	join(String[] array)
static void	join(String[] array, char separator, StringBuilder sb)
static String	join(String a, String b)
static String	join(Collection<String> collection)
static String	join(Collection<String> collection, char separator)
static <T> void	join(T[] array, char separator, Function<T,String> function, StringBuilder sb)
static String[]	splitCommaSeparated(String s)	Splits a comma-separated string into an array of String values.

Methods inherited from class java.lang.Object

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

Method Details

join

public static String join(String a,
 String b)

join

public static String join(String[] array)

join

public static void join(String[] array,
 char separator,
 StringBuilder sb)

join

public static String join(Collection<String> collection)

join

public static String join(Collection<String> collection,
 char separator)

join

public static void join(Iterable<String> iterable,
 char separator,
 StringBuilder sb)

join

public static <T> void join(T[] array,
 char separator,
 Function<T,String> function,
 StringBuilder sb)

join

public static <T> void join(Iterable<T> iterable,
 char separator,
 Function<T,String> function,
 StringBuilder sb)

splitCommaSeparated

public static String[] splitCommaSeparated(String s)

Splits a comma-separated string into an array of String values. Whitespace around the commas is removed. Null or empty values will return a zero-element array.

Parameters:

s - The string to split by commas.

Returns:

An array of String values.