Package com.sap.cds.services.utils

Class StringUtils

java.lang.Object

com.sap.cds.services.utils.StringUtils

public class StringUtils
extends Object

Helper functions providing simple String operations

Method Summary

Modifier and Type	Method	Description
static boolean	equalsMapIgnoreCase(Map<String,String> props, Map<String,String> otherProps)	Compares two string property maps.
static boolean	isEmpty(String value)	Tests if a String has content (e.g. none space characters) or not.
static String	notEmpty(String... values)	Returns the first not empty String from the parameters or null if not existing.
static String	stringifyList(List<String> values)	Converts a list of values to a string 'value1, value2, ...'
static String	stringifyMap(Map<String,Object> keyValueMap)	Converts a map of key value pairs to a string 'key1=value1, key2=value2, ...'
static String	toStringSafely(Object[] args)	Converts an array of objects into a string, while catching and handling all exception types.
static String	trim(String value, char c)	Trims a string from a certain character

Methods inherited from class java.lang.Object

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

Method Details

isEmpty

public static boolean isEmpty(String value)

Tests if a String has content (e.g. none space characters) or not.

Parameters:

value - The string to be tested

Returns:

true in case value is null or has no content.

notEmpty

public static String notEmpty(String... values)

Returns the first not empty String from the parameters or null if not existing.

Parameters:

values - The String values in sorted order

Returns:

The first not empty String or null

trim

public static String trim(String value,
 char c)

Trims a string from a certain character

Parameters:

value - the string

c - the character

Returns:

the trimmed string

equalsMapIgnoreCase

public static boolean equalsMapIgnoreCase(Map<String,String> props,
 Map<String,String> otherProps)

Compares two string property maps. The keys are compared case-insensitive. Values are compared case-sensitive.

Parameters:

props - map to be compared

otherProps - map to be compared

Returns:

true id equals and false otherwise

stringifyMap

public static String stringifyMap(Map<String,Object> keyValueMap)

Converts a map of key value pairs to a string 'key1=value1, key2=value2, ...'

Parameters:

keyValueMap - map containing key value pairs

Returns:

string representation

stringifyList

public static String stringifyList(List<String> values)

Converts a list of values to a string 'value1, value2, ...'

Parameters:

values - list of values to stringify

Returns:

string representation

toStringSafely

public static String toStringSafely(Object[] args)

Converts an array of objects into a string, while catching and handling all exception types.

Parameters:

args - the array of objects

Returns:

the stringified objects