de.intarsys.tools.file

Class MagicFileNumberTest

java.lang.Object

de.intarsys.tools.file.MagicFileNumberTest

public class MagicFileNumberTest
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	MagicFileNumberTest.Type

Method Summary

Methods

Modifier and Type	Method and Description
static void	addType(String fileSuffix, byte[] magicBytes)
static String	guessFileSuffix(byte[] data)
static String	guessFileSuffix(IRandomAccess data)
static boolean	isText(byte[] data) does the data contain only ISO-8819-x printable characters ?
static boolean	isText(IRandomAccess data) does the data contain only ISO-8819-x printable characters ?

Methods inherited from class java.lang.Object

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

Method Detail

addType

public static void addType(String fileSuffix,
           byte[] magicBytes)

Parameters:

fileSuffix - just the suffix without any starting suffix delimiters (e.g.: 'pdf')

magicBytes - any bytes, not null or zero size

guessFileSuffix

public static String guessFileSuffix(byte[] data)

Parameters:

data - any not null or zero size data

Returns:

a file suffix without a delimiter (e.g.: 'pdf') or null

guessFileSuffix

public static String guessFileSuffix(IRandomAccess data)
                              throws IOException

Parameters:

data - any not null or zero size data

Returns:

a file suffix without a delimiter (e.g.: 'pdf') or null

Throws:

IOException

isText

public static boolean isText(byte[] data)

does the data contain only ISO-8819-x printable characters ?

isText

public static boolean isText(IRandomAccess data)
                      throws IOException

does the data contain only ISO-8819-x printable characters ?

Throws:

IOException