org.mycore.datamodel.ifs
Interface MCRFileContentTypeDetector

All Known Implementing Classes:

MCRSimpleFCTDetector

public interface MCRFileContentTypeDetector

Detects the file content type from filename and file header. The rules to do this are implementation specific, but MyCoRe provides a simple detector implementation in the class MCRSimpleFCTDetector.

Version:

$Revision: 13085 $ $Date: 2008-02-06 18:27:24 +0100 (Mi, 06 Feb 2008) $

Author:

Frank Lützenkirchen

See Also:

MCRSimpleFCTDetector

Method Summary

void	addRule(MCRFileContentType type, Element rules) Adds a detection rule from the file content type definition XML file.
MCRFileContentType	detectType(String filename, byte[] header) Detects the file content type from filename and/or file header.

Method Detail

addRule

void addRule(MCRFileContentType type,
             Element rules)

Adds a detection rule from the file content type definition XML file. The detector is responsible for parsing the <rules> element provided and registering the rules stored there with the content type given.

Parameters:

type - the file content type the rule is for

rules - the rules XML element containing the rules for detecting that type

detectType

MCRFileContentType detectType(String filename,
                              byte[] header)

Detects the file content type from filename and/or file header.

Parameters:

filename - the name of the file

header - the first bytes of the file content

Returns:

the file content type detected, or null if detection was not possible