com.net2plan.utils

Class StringUtils

java.lang.Object

com.net2plan.utils.StringUtils

public class StringUtils
extends java.lang.Object

Provides extra functionality for String objects.

Since:

0.2.0

Author:

Pablo Pavon-Marino, Jose-Luis Izquierdo-Zaragoza

Constructor Summary

Constructors

Constructor and Description
StringUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static void	checkAttributeName(java.lang.String key) Checks whether an attribute name is valid according to the rules defined in XML Specification 1.0 [XML].
static java.lang.String	getLineSeparator() Returns the line separator.
static java.lang.String	join(java.lang.String[] array, java.lang.String separator) Joins elements from a given array into a String.
static java.lang.String	mapToString(java.util.Map map, java.lang.String keyValueSeparator, java.lang.String entrySeparator) Outputs entries from a Map to a String
static java.lang.String[]	select(java.lang.String[] array, int[] indexes) Returns a set of selected elements from an input array.
static java.lang.String[]	split(java.lang.String string) Splits a String into an array asumming items are separated by spaces.
static java.lang.String[]	split(java.lang.String string, java.lang.String separators) Splits a String into an array according to a set of separators.
static java.lang.String[]	toArray(java.util.Collection list) Converts a collection (List, Set...) of objects to a String array.
static boolean[]	toBooleanArray(java.lang.String[] array, boolean valueForNull) Converts a String array to a boolean array.
static double[]	toDoubleArray(java.lang.String[] array) Converts a String array to a double array.
static double[]	toDoubleArray(java.lang.String[] array, double valueForNull) Converts a String array to a double array.
static int[]	toIntArray(java.lang.String[] array) Converts a String array to an int array.
static int[]	toIntArray(java.lang.String[] array, int valueForNull) Converts a String array to an int array.
static java.util.List<java.lang.String>	toList(java.lang.String[] array) Converts from a String array to a list.

Methods inherited from class java.lang.Object

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

Constructor Detail

StringUtils

public StringUtils()

Method Detail

getLineSeparator

public static java.lang.String getLineSeparator()

Returns the line separator. Each operating system uses a different one (e.g. \r\n on Microsoft Windows, \n for Unix systems...).

Returns:

The line separator

Since:

0.2.0

select

public static java.lang.String[] select(java.lang.String[] array,
                        int[] indexes)

Returns a set of selected elements from an input array. It is not backed in the input array, thus changes in this array are not reflected in the input array.

Parameters:

array - Input array

indexes - Position of elements to be selected.

Returns:

Set of elements in the order given by indexes

Since:

0.2.3

join

public static java.lang.String join(java.lang.String[] array,
                    java.lang.String separator)

Joins elements from a given array into a String.

Parameters:

array - Input array

separator - Entry separator

Returns:

A String

Since:

0.2.0

mapToString

public static java.lang.String mapToString(java.util.Map map,
                           java.lang.String keyValueSeparator,
                           java.lang.String entrySeparator)

Outputs entries from a Map to a String

Parameters:

map - Input map

keyValueSeparator - Separator between keys and values

entrySeparator - Separator between key-value pairs

Returns:

String representing the map

Since:

0.2.0

split

public static java.lang.String[] split(java.lang.String string)

Splits a String into an array asumming items are separated by spaces.

Parameters:

string - Input string

Returns:

String array

Since:

0.2.0

split

public static java.lang.String[] split(java.lang.String string,
                       java.lang.String separators)

Splits a String into an array according to a set of separators.

Parameters:

string - Input string

separators - Set of separators

Returns:

String array

Since:

0.2.0

toArray

public static java.lang.String[] toArray(java.util.Collection list)

Converts a collection (List, Set...) of objects to a String array. If objects are not instances of String, toString() will be used.

Parameters:

list - Input list

Returns:

String array

Since:

0.2.0

toBooleanArray

public static boolean[] toBooleanArray(java.lang.String[] array,
                       boolean valueForNull)

Converts a String array to a boolean array.

Parameters:

array - Input array

valueForNull - Value for null positions

Returns:

New boolean array

Since:

0.2.0

toDoubleArray

public static double[] toDoubleArray(java.lang.String[] array)

Converts a String array to a double array.

Parameters:

array - Input array

Returns:

New double array

Since:

0.2.0

toDoubleArray

public static double[] toDoubleArray(java.lang.String[] array,
                     double valueForNull)

Converts a String array to a double array.

Parameters:

array - Input array

valueForNull - Value for null positions

Returns:

New double array

Since:

0.2.0

toIntArray

public static int[] toIntArray(java.lang.String[] array)

Converts a String array to an int array.

Parameters:

array - Input array

Returns:

New int array

Since:

0.2.0

toIntArray

public static int[] toIntArray(java.lang.String[] array,
               int valueForNull)

Converts a String array to an int array.

Parameters:

array - Input array

valueForNull - Value for null positions

Returns:

New int array

Since:

0.2.0

toList

public static java.util.List<java.lang.String> toList(java.lang.String[] array)

Converts from a String array to a list.

Parameters:

array - Input array

Returns:

A list of String objects

Since:

0.2.0

checkAttributeName

public static void checkAttributeName(java.lang.String key)

Checks whether an attribute name is valid according to the rules defined in XML Specification 1.0 [XML].

Parameters:

key - Attribute name

Since:

0.2.3

See Also:

Wide Web Consortium (W3C), "Extensible Markup Language (XML) 1.0 (Fifth Edition)," W3C Recommendation, November 2008. [Online] http://www.w3.org/TR/xml/#NT-Name