org.okkam.awesome.utils

Class OkkamStrings

java.lang.Object

org.okkam.awesome.utils.OkkamStrings

public class OkkamStrings
extends Object

Method Summary

Modifier and Type	Method and Description
static <T> StringBuilder	appendAll(StringBuilder sb, T... elements) Append to the string Builder all elements.
static boolean	isEmptyAndNotNull(String string, boolean trim) Check if the string is empty and not null.
static boolean	isEmptyOrNull(String string, boolean trim) Check if the string is null or empty.
static boolean	isOneOf(String string, boolean trim, String... ors) Check if the string is one of the specified values.
static boolean	noOneIsEmptyOrNull(boolean trim, String... strings) Check if the strings are not empty and not blank.
static <T> String	separateArrayBy(T[] array, String separator) Generate a string based on array, with a specified separator.
static <T> String	separateTreeMapValuesBy(Map<T,String> map, String separator) Generate a string based on map values, with a specified separator.
static String	trimIfNecessary(boolean trim, String src) Returns the trimmed string when not null and necessary (i.e.

Methods inherited from class java.lang.Object

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

Method Detail

isEmptyOrNull

public static boolean isEmptyOrNull(String string,
                                    boolean trim)

Check if the string is null or empty.

Parameters:

string - The input string

trim - true to trim the input string (when not null)

Returns:

The check result

isEmptyAndNotNull

public static boolean isEmptyAndNotNull(String string,
                                        boolean trim)

Check if the string is empty and not null.

Parameters:

string - The input string

trim - true to trim the input string (when not null)

Returns:

The check result

noOneIsEmptyOrNull

public static boolean noOneIsEmptyOrNull(boolean trim,
                                         String... strings)

Check if the strings are not empty and not blank.

Parameters:

trim - true to trim the strings (when not empty)

strings - The input strings

Returns:

The check result

isOneOf

public static boolean isOneOf(String string,
                              boolean trim,
                              String... ors)

Check if the string is one of the specified values. String could also be null, in this case the method will return true if there's a null element in the passed array.

Parameters:

string - The input string

trim - true to trim the strings to check for equality

ors - The values to check

Returns:

A boolean value depending on the result

trimIfNecessary

public static String trimIfNecessary(boolean trim,
                                     String src)

Returns the trimmed string when not null and necessary (i.e. trim is true).

Parameters:

trim - true to trim the passed string

src - the string to trim (maybe)

Returns:

the trimmed string (if necessary). Return null if src is null.

appendAll

@SafeVarargs
public static <T> StringBuilder appendAll(StringBuilder sb,
                                                       T... elements)

Append to the string Builder all elements.

Type Parameters:

T - The elements type

Parameters:

sb - The string builder

elements - The elements to append

Returns:

The new string builder

separateArrayBy

public static <T> String separateArrayBy(T[] array,
                                         String separator)

Generate a string based on array, with a specified separator.

Type Parameters:

T - The array type

Parameters:

array - The input array

separator - The separator

Returns:

The generated string

separateTreeMapValuesBy

public static <T> String separateTreeMapValuesBy(Map<T,String> map,
                                                 String separator)

Generate a string based on map values, with a specified separator. Use a tree map to guarantee ordering.

Type Parameters:

T - The map key type

Parameters:

map - The input map

separator - The separator

Returns:

The generated string