public class StringUtils
extends Object 

• Field Summary

  Fields

  Modifier and Type	Field and Description
  static String	COMMA_SEPARATOR
  static Charset	UTF8

• Constructor Summary

  Constructors

  Constructor and Description
  StringUtils ()

• Method Summary

  All Methods

  Modifier and Type	Method and Description
  static void	appendCompactedString (StringBuilder destination, String source) This method appends a string to a string builder and collapses contiguous white space is a single space.
  static boolean	beginsWithIgnoreCase (String data, String seq) Performs a case insensitive comparison and returns true if the data begins with the given sequence.
  static int	compare (String str1, String str2) Compare two strings with Locale.ENGLISH This method is preferred over String.compareTo() method.
  static Character	findFirstOccurrence (String s, char... charsToMatch) Searches a string for the first occurrence of a character specified by a list of characters.
  static String	fromBigDecimal (BigDecimal value)
  static String	fromBigInteger (BigInteger value)
  static String	fromBoolean (Boolean value)
  static String	fromByte (Byte b) Returns the string representation of the specified Byte.
  static String	fromByteBuffer (ByteBuffer byteBuffer) Base64 encodes the data in the specified byte buffer (from the current position to the buffer's limit) and returns it as a base64 encoded string.
  static String	fromDate (Date value) Converts the specified date to an ISO 8601 timestamp string and returns it.
  static String	fromDate (Date date, String timestampFormat)
  static String	fromDouble (Double d) Returns the string representation of the specified double.
  static String	fromFloat (Float value)
  static String	fromInteger (Integer value)
  static String	fromLong (Long value)
  static String	fromShort (Short value)
  static String	fromString (String value)
  static boolean	hasValue (String str)
  static boolean	isNullOrEmpty (String value)
  static String	join (String joiner, String... parts) Joins the strings in parts with joiner between each string
  static String	lowerCase (String str) Converts a given String to lower case with Locale.ENGLISH
  static String	replace (String originalString, String partToMatch, String replacement)
  static BigDecimal	toBigDecimal (String s)
  static BigInteger	toBigInteger (String s)
  static Boolean	toBoolean (StringBuilder value)
  static Integer	toInteger (StringBuilder value)
  static String	toString (StringBuilder value)
  static String	trim (String value) A null-safe trim method.
  static String	upperCase (String str) Converts a given String to upper case with Locale.ENGLISH

  • Methods inherited from class java.lang.Object

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

• Field Detail

  • COMMA_SEPARATOR

    public static final String COMMA_SEPARATOR

    See Also:

    Constant Field Values

  • UTF8

    public static final Charset UTF8

• Constructor Detail

  • StringUtils

    public StringUtils()

• Method Detail

  • toInteger

    public static Integer toInteger(StringBuilder value)

  • toString

    public static String toString(StringBuilder value)

  • toBoolean

    public static Boolean toBoolean(StringBuilder value)

  • fromInteger

    public static String fromInteger(Integer value)

  • fromLong

    public static String fromLong(Long value)

  • fromShort

    public static String fromShort(Short value)

  • fromString

    public static String fromString(String value)

  • fromBoolean

    public static String fromBoolean(Boolean value)

  • fromBigInteger

    public static String fromBigInteger(BigInteger value)

  • fromBigDecimal

    public static String fromBigDecimal(BigDecimal value)

  • toBigInteger

    public static BigInteger toBigInteger(String s)

  • toBigDecimal

    public static BigDecimal toBigDecimal(String s)

  • fromFloat

    public static String fromFloat(Float value)

  • fromDate

    public static String fromDate(Date value)

    Converts the specified date to an ISO 8601 timestamp string and returns it.

    Parameters:

    value - The date to format as an ISO 8601 timestamp string.

    Returns:

    An ISO 8601 timestamp string created from the specified date.

  • fromDate

    public static String fromDate(Date date,
     String timestampFormat)

  • fromDouble

    public static String fromDouble(Double d)

    Returns the string representation of the specified double.

    Parameters:

    d - The double to represent as a string.

    Returns:

    The string representation of the specified double.

  • fromByte

    public static String fromByte(Byte b)

    Returns the string representation of the specified Byte.

    Parameters:

    b - The Byte to represent as a string.

    Returns:

    The string representation of the specified Byte.

  • fromByteBuffer

    public static String fromByteBuffer(ByteBuffer byteBuffer)

    Base64 encodes the data in the specified byte buffer (from the current position to the buffer's limit) and returns it as a base64 encoded string.

    Parameters:

    byteBuffer - The data to base64 encode and return as a string; must not be null.

    Returns:

    The base64 encoded contents of the specified byte buffer.

  • replace

    public static String replace(String originalString,
     String partToMatch,
     String replacement)

  • join

    public static String join(String joiner,
     String... parts)

    Joins the strings in parts with joiner between each string

    Parameters:

    joiner - the string to insert between the strings in parts

    parts - the parts to join

  • trim

    public static String trim(String value)

    A null-safe trim method. If the input string is null, returns null; otherwise returns a trimmed version of the input.

  • isNullOrEmpty

    public static boolean isNullOrEmpty(String value)

    Returns:

    true if the given value is either null or the empty string

  • hasValue

    public static boolean hasValue(String str)

    Returns:

    true if the given value is non-null and non-empty

  • lowerCase

    public static String lowerCase(String str)

    Converts a given String to lower case with Locale.ENGLISH

    Parameters:

    str - the string to be converted to lower case

    Returns:

    the lower case of string, or itself if string is null/empty

  • upperCase

    public static String upperCase(String str)

    Converts a given String to upper case with Locale.ENGLISH

    Parameters:

    str - the string to be converted to upper case

    Returns:

    the upper case of string, or itself if string is null/empty

  • compare

    public static int compare(String str1,
     String str2)

    Compare two strings with Locale.ENGLISH This method is preferred over String.compareTo() method.

    Parameters:

    str1 - String 1

    str2 - String 2

    Returns:

    negative integer if str1 lexicographically precedes str2 positive integer if str1 lexicographically follows str2 0 if both strings are equal

    Throws:

    IllegalArgumentException - throws exception if both or either of the strings is null

  • appendCompactedString

    public static void appendCompactedString(StringBuilder destination,
     String source)

    This method appends a string to a string builder and collapses contiguous white space is a single space. This is equivalent to: destination.append(source.replaceAll("\\s+", " ")) but does not create a Pattern object that needs to compile the match string; it also prevents us from having to make a Matcher object as well.

  • beginsWithIgnoreCase

    public static boolean beginsWithIgnoreCase(String data,
     String seq)

    Performs a case insensitive comparison and returns true if the data begins with the given sequence.

  • findFirstOccurrence

    public static Character findFirstOccurrence(String s,
     char... charsToMatch)

    Searches a string for the first occurrence of a character specified by a list of characters.

    Parameters:

    s - The string to search.

    charsToMatch - A list of characters to search the string for.

    Returns:

    The character that was first matched in the string or null if none of the characters were found.