Class StringConverter


  • public class StringConverter
    extends Object
    Helper class for converting various data types to and from strings. Supported types include:
    • boolean
    • int
    • long
    • float
    • double
    • org.eclipse.swt.graphics.Point
    • org.eclipse.swt.graphics.Rectangle
    • org.eclipse.swt.graphics.RGB
    • org.eclipse.swt.graphics.FontData

    All methods declared on this class are static. This class cannot be instantiated.

    Restriction:
    This class is not intended to be subclassed by clients.
    Restriction:
    This class is not intended to be instantiated by clients.
    • Method Detail

      • asArray

        public static String[] asArray​(String value)
                                throws DataFormatException
        Breaks out space-separated words into an array of words. For example: "no comment" into an array a[0]="no" and a[1]= "comment".
        Parameters:
        value - the string to be converted
        Returns:
        the list of words
        Throws:
        DataFormatException - thrown if request string could not seperated
      • asArray

        public static String[] asArray​(String value,
                                       String[] dflt)
        /** Breaks out space-separated words into an array of words. For example: "no comment" into an array a[0]="no" and a[1]= "comment". Returns the given default value if the value cannot be parsed.
        Parameters:
        value - the string to be converted
        dflt - the default value
        Returns:
        the list of words, or the default value
      • asBoolean

        public static boolean asBoolean​(String value)
                                 throws DataFormatException
        Converts the given value into a boolean. This method fails if the value does not represent a boolean.

        Valid representations of true include the strings "t", "true", or equivalent in mixed or upper case. Similarly, valid representations of false include the strings "f", "false", or equivalent in mixed or upper case.

        Parameters:
        value - the value to be converted
        Returns:
        the value as a boolean
        Throws:
        DataFormatException - if the given value does not represent a boolean
      • asBoolean

        public static boolean asBoolean​(String value,
                                        boolean dflt)
        Converts the given value into a boolean. Returns the given default value if the value does not represent a boolean.
        Parameters:
        value - the value to be converted
        dflt - the default value
        Returns:
        the value as a boolean, or the default value
      • asDouble

        public static double asDouble​(String value)
                               throws DataFormatException
        Converts the given value into a double. This method fails if the value does not represent a double.
        Parameters:
        value - the value to be converted
        Returns:
        the value as a double
        Throws:
        DataFormatException - if the given value does not represent a double
      • asDouble

        public static double asDouble​(String value,
                                      double dflt)
        Converts the given value into a double. Returns the given default value if the value does not represent a double.
        Parameters:
        value - the value to be converted
        dflt - the default value
        Returns:
        the value as a double, or the default value
      • asFloat

        public static float asFloat​(String value)
                             throws DataFormatException
        Converts the given value into a float. This method fails if the value does not represent a float.
        Parameters:
        value - the value to be converted
        Returns:
        the value as a float
        Throws:
        DataFormatException - if the given value does not represent a float
      • asFloat

        public static float asFloat​(String value,
                                    float dflt)
        Converts the given value into a float. Returns the given default value if the value does not represent a float.
        Parameters:
        value - the value to be converted
        dflt - the default value
        Returns:
        the value as a float, or the default value
      • asFontData

        public static FontData asFontData​(String value)
                                   throws DataFormatException
        Converts the given value into an SWT font data object. This method fails if the value does not represent font data.

        A valid font data representation is a string of the form fontname-style-height where fontname is the name of a font, style is a font style (one of "regular", "bold", "italic", or "bold italic") and height is an integer representing the font height. Example: Times New Roman-bold-36.

        Parameters:
        value - the value to be converted
        Returns:
        the value as font data
        Throws:
        DataFormatException - if the given value does not represent font data
      • asFontDataArray

        public static FontData[] asFontDataArray​(String value)
        Convert the given value into an array of SWT font data objects.
        Parameters:
        value - the font list string
        Returns:
        the value as a font list
        Since:
        3.0
      • asFontData

        public static FontData asFontData​(String value,
                                          FontData dflt)
        Converts the given value into an SWT font data object. Returns the given default value if the value does not represent a font data object.
        Parameters:
        value - the value to be converted
        dflt - the default value
        Returns:
        the value as a font data object, or the default value
      • asInt

        public static int asInt​(String value)
                         throws DataFormatException
        Converts the given value into an int. This method fails if the value does not represent an int.
        Parameters:
        value - the value to be converted
        Returns:
        the value as an int
        Throws:
        DataFormatException - if the given value does not represent an int
      • asInt

        public static int asInt​(String value,
                                int dflt)
        Converts the given value into an int. Returns the given default value if the value does not represent an int.
        Parameters:
        value - the value to be converted
        dflt - the default value
        Returns:
        the value as an int, or the default value
      • asLong

        public static long asLong​(String value)
                           throws DataFormatException
        Converts the given value into a long. This method fails if the value does not represent a long.
        Parameters:
        value - the value to be converted
        Returns:
        the value as a long
        Throws:
        DataFormatException - if the given value does not represent a long
      • asLong

        public static long asLong​(String value,
                                  long dflt)
        Converts the given value into a long. Returns the given default value if the value does not represent a long.
        Parameters:
        value - the value to be converted
        dflt - the default value
        Returns:
        the value as a long, or the default value
      • asPoint

        public static Point asPoint​(String value)
                             throws DataFormatException
        Converts the given value into an SWT point. This method fails if the value does not represent a point.

        A valid point representation is a string of the form x,y where x and y are valid ints.

        Parameters:
        value - the value to be converted
        Returns:
        the value as a point
        Throws:
        DataFormatException - if the given value does not represent a point
      • asPoint

        public static Point asPoint​(String value,
                                    Point dflt)
        Converts the given value into an SWT point. Returns the given default value if the value does not represent a point.
        Parameters:
        value - the value to be converted
        dflt - the default value
        Returns:
        the value as a point, or the default value
      • asRectangle

        public static Rectangle asRectangle​(String value)
                                     throws DataFormatException
        Converts the given value into an SWT rectangle. This method fails if the value does not represent a rectangle.

        A valid rectangle representation is a string of the form x,y,width,height where x, y, width, and height are valid ints.

        Parameters:
        value - the value to be converted
        Returns:
        the value as a rectangle
        Throws:
        DataFormatException - if the given value does not represent a rectangle
      • asRectangle

        public static Rectangle asRectangle​(String value,
                                            Rectangle dflt)
        Converts the given value into an SWT rectangle. Returns the given default value if the value does not represent a rectangle.
        Parameters:
        value - the value to be converted
        dflt - the default value
        Returns:
        the value as a rectangle, or the default value
      • asRGB

        public static RGB asRGB​(String value)
                         throws DataFormatException
        Converts the given value into an SWT RGB color value. This method fails if the value does not represent an RGB color value.

        A valid RGB color value representation is a string of the form red,green,blue where red,green and blue are valid ints.

        Parameters:
        value - the value to be converted
        Returns:
        the value as an RGB color value
        Throws:
        DataFormatException - if the given value does not represent an RGB color value
      • asRGB

        public static RGB asRGB​(String value,
                                RGB dflt)
        Converts the given value into an SWT RGB color value. Returns the given default value if the value does not represent an RGB color value.
        Parameters:
        value - the value to be converted
        dflt - the default value
        Returns:
        the value as a RGB color value, or the default value
      • asString

        public static String asString​(double value)
        Converts the given double value to a string. Equivalent to String.valueOf(value).
        Parameters:
        value - the double value
        Returns:
        the string representing the given double
      • asString

        public static String asString​(float value)
        Converts the given float value to a string. Equivalent to String.valueOf(value).
        Parameters:
        value - the float value
        Returns:
        the string representing the given float
      • asString

        public static String asString​(int value)
        Converts the given int value to a string. Equivalent to String.valueOf(value).
        Parameters:
        value - the int value
        Returns:
        the string representing the given int
      • asString

        public static String asString​(long value)
        Converts the given long value to a string. Equivalent to String.valueOf(value).
        Parameters:
        value - the long value
        Returns:
        the string representing the given long
      • asString

        public static String asString​(Boolean value)
        Converts the given boolean object to a string. Equivalent to String.valueOf(value.booleanValue()).
        Parameters:
        value - the boolean object
        Returns:
        the string representing the given boolean value
      • asString

        public static String asString​(Double value)
        Converts the given double object to a string. Equivalent to String.valueOf(value.doubleValue()).
        Parameters:
        value - the double object
        Returns:
        the string representing the given double value
      • asString

        public static String asString​(Float value)
        Converts the given float object to a string. Equivalent to String.valueOf(value.floatValue()).
        Parameters:
        value - the float object
        Returns:
        the string representing the given float value
      • asString

        public static String asString​(Integer value)
        Converts the given integer object to a string. Equivalent to String.valueOf(value.intValue()).
        Parameters:
        value - the integer object
        Returns:
        the string representing the given integer value
      • asString

        public static String asString​(Long value)
        Converts the given long object to a string. Equivalent to String.valueOf(value.longValue()).
        Parameters:
        value - the long object
        Returns:
        the string representing the given long value
      • asString

        public static String asString​(FontData[] value)
        Converts a font data array to a string. The string representation is that of asString(FontData) seperated by ';'
        Parameters:
        value - The font data.
        Returns:
        The string representation of the font data arra.
        Since:
        3.0
      • asString

        public static String asString​(FontData value)
        Converts a font data object to a string. The string representation is "font name-style-height" (for example "Times New Roman-bold-36").
        Parameters:
        value - The font data.
        Returns:
        The string representation of the font data object.
      • asString

        public static String asString​(Point value)
        Converts the given SWT point object to a string.

        The string representation of a point has the form x,y where x and y are string representations of integers.

        Parameters:
        value - the point object
        Returns:
        the string representing the given point
      • asString

        public static String asString​(Rectangle value)
        Converts the given SWT rectangle object to a string.

        The string representation of a rectangle has the form x,y,width,height where x, y, width, and height are string representations of integers.

        Parameters:
        value - the rectangle object
        Returns:
        the string representing the given rectangle
      • asString

        public static String asString​(RGB value)
        Converts the given SWT RGB color value object to a string.

        The string representation of an RGB color value has the form red,green,blue where red,green and blue are string representations of integers.

        Parameters:
        value - the RGB color value object
        Returns:
        the string representing the given RGB color value
      • asString

        public static String asString​(boolean value)
        Converts the given boolean value to a string. Equivalent to String.valueOf(value).
        Parameters:
        value - the boolean value
        Returns:
        the string representing the given boolean
      • removeWhiteSpaces

        public static String removeWhiteSpaces​(String s)
        Returns the given string with all whitespace characters removed.

        All characters that have codes less than or equal to '\u0020' (the space character) are considered to be a white space.

        Parameters:
        s - the source string
        Returns:
        the string with all whitespace characters removed
      • asDisplayableString

        @Deprecated
        public static String asDisplayableString​(FontData value)
        Deprecated.
        use asString(FontData)
        Converts a font data object to a string representation for display. The string representation is "font name-style-height" (for example "Times New Roman-bold-36").
        Parameters:
        value - The font data.
        Returns:
        The string representation of the font data object.