com.asprise.imaging.core.scan.twain

Class TwainUtil

java.lang.Object

com.asprise.imaging.core.scan.twain.TwainUtil

public class TwainUtil
extends java.lang.Object

Utils

Constructor Summary

Constructors

Constructor and Description
TwainUtil()

Method Summary

Modifier and Type	Method and Description
static java.lang.String	getMimeType(java.lang.String format) Returns the mime type of the given format.
static java.lang.Object	jsonDeserialize(java.lang.String s) Deserialize JSON from String.
static java.util.Map<java.lang.String,java.lang.Object>	jsonDeserializeToArray(java.lang.String s) Deserialize JSON from String.
static java.lang.String	normalizeImageFormat(java.lang.String format) Normalizes image format, e.g., TIFF to tif (Imaging.FORMAT_TIF).
static double[]	parseFrame(java.lang.String frameSpec) Parses frame value like "(0.0, 0.0, 4.0, 6.0)"
static double	toDouble(java.lang.Object object, double defaultValue) Extract the value represented by the given object (Number or String).
static int	toInteger(java.lang.Object object, int defaultValue) Extract the value represented by the given object (Number or String).
static long	toLong(java.lang.Object object, long defaultValue) Extract the value represented by the given object (Number or String).
static java.lang.Number	toNumber(java.lang.Object object, java.lang.Number defaultValue) Extract the value represented by the given object (Number or String) - trialing '.0*' will be removed.
static java.lang.String	toString(java.lang.Object object) Return null if object is null otherwise object.toString().

Methods inherited from class java.lang.Object

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

Constructor Detail

TwainUtil

public TwainUtil()

Method Detail

normalizeImageFormat

public static java.lang.String normalizeImageFormat(java.lang.String format)

Normalizes image format, e.g., TIFF to tif (Imaging.FORMAT_TIF).

Parameters:

format -

Returns:

normalized image format or original format if failed to normalize it to any of the supported formats.

getMimeType

public static java.lang.String getMimeType(java.lang.String format)

Returns the mime type of the given format.

Parameters:

format - cane be bmp, jpng, jp[e]g, tif[f], pdf, etc.

Returns:

the mime type or "application/octet-stream" if undetermined.

toInteger

public static int toInteger(java.lang.Object object,
                            int defaultValue)

Extract the value represented by the given object (Number or String).

Parameters:

object - the object to extract value from

defaultValue - default value to be returned if object is null or NumberFormatException.

Returns:

the value extracted or default value if failed to extract the value.

toLong

public static long toLong(java.lang.Object object,
                          long defaultValue)

Extract the value represented by the given object (Number or String).

Parameters:

object - the object to extract value from

defaultValue - default value to be returned if object is null or NumberFormatException.

Returns:

the value extracted or default value if failed to extract the value.

toDouble

public static double toDouble(java.lang.Object object,
                              double defaultValue)

Extract the value represented by the given object (Number or String).

Parameters:

object - the object to extract value from

defaultValue - default value to be returned if object is null or NumberFormatException.

Returns:

the value extracted or default value if failed to extract the value.

toNumber

public static java.lang.Number toNumber(java.lang.Object object,
                                        java.lang.Number defaultValue)

Extract the value represented by the given object (Number or String) - trialing '.0*' will be removed.

Parameters:

object - Integer or Double, fall back to defaultValue.

defaultValue - default value to be returned if object is null or NumberFormatException.

Returns:

the value extracted or default value if failed to extract the value.

parseFrame

public static double[] parseFrame(java.lang.String frameSpec)

Parses frame value like "(0.0, 0.0, 4.0, 6.0)"

Parameters:

frameSpec - the value in string representation

Returns:

4-element double array or null if parsing fails.

toString

public static java.lang.String toString(java.lang.Object object)

Return null if object is null otherwise object.toString().

Parameters:

object -

Returns:

jsonDeserialize

public static java.lang.Object jsonDeserialize(java.lang.String s)

Deserialize JSON from String.

Parameters:

s -

Returns:

jsonDeserializeToArray

public static java.util.Map<java.lang.String,java.lang.Object> jsonDeserializeToArray(java.lang.String s)

Deserialize JSON from String.

Parameters:

s -

Returns: