org.mmbase.util.magicfile
Class MagicFile

java.lang.Object
  org.mmbase.util.magicfile.MagicFile

public class MagicFile
extends Object

Tries to determine the mime-type of a byte array (or a file).

Version:

$Id: MagicFile.java 41717 2010-04-01 11:43:17Z michiel $

Author:

cjr@dds.nl, Michiel Meeuwissen

Field Summary

protected static int	BUFSIZE
protected DetectorProvider	detectors
static String	FAILED

Method Summary

String	extensionToMimeType(String extension)
List<Detector>	getDetectors() Returns a list of detectors used by this MagicFile instance
static MagicFile	getInstance() Return the current instance of MagicFile.
String	getMimeType(byte[] input) Tests the byte[] array for the mime type.
String	getMimeType(byte[] data, String extension)
String	getMimeType(File file)
String	getMimeType(InputStream input)
static void	main(String[] argv) e.g.: java -Dmmbase.config=/home/mmbase/mmbase-app/WEB-INF/config org.mmbase.util.MagicFile test.doc
String	mimeTypeToExtension(String mimeType) Given a mime-type string, this function tries to create a common extension for it.
protected String	test(String path)

Methods inherited from class java.lang.Object

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

Field Detail

BUFSIZE

protected static final int BUFSIZE

See Also:

Constant Field Values

FAILED

public static final String FAILED

See Also:

Constant Field Values

detectors

protected final DetectorProvider detectors

Method Detail

getInstance

public static MagicFile getInstance()

Return the current instance of MagicFile. If no instance exists, one is created.

getDetectors

public List<Detector> getDetectors()

Returns a list of detectors used by this MagicFile instance

test

protected String test(String path)

getMimeType

public String getMimeType(File file)
                   throws IOException

Parameters:

file - Location of file to be checked

Returns:

Type of the file as determined by the magic file

Throws:

IOException

getMimeType

public String getMimeType(byte[] input)

Tests the byte[] array for the mime type.

Returns:

The found mime-type or FAILED

getMimeType

public String getMimeType(InputStream input)
                   throws IOException

Throws:

IOException

Since:

MMBase-1.9.2

extensionToMimeType

public String extensionToMimeType(String extension)

Javadoc:

mimeTypeToExtension

public String mimeTypeToExtension(String mimeType)

Given a mime-type string, this function tries to create a common extension for it.

Returns:

An extension (without the dot), or an empty string if the mime-type is unknown, or '???' if no valid extension for it is found.

Since:

MMBase-1.7.1

getMimeType

public String getMimeType(byte[] data,
                          String extension)

Javadoc:

main

public static void main(String[] argv)

e.g.: java -Dmmbase.config=/home/mmbase/mmbase-app/WEB-INF/config org.mmbase.util.MagicFile test.doc

Javadoc: