/*
* Eoulsan development code
*
* This code may be freely distributed and modified under the
* terms of the GNU Lesser General Public License version 2.1 or
* later and CeCILL-C. This should be distributed with the code.
* If you do not have a copy, see:
*
* http://www.gnu.org/licenses/lgpl-2.1.txt
* http://www.cecill.info/licences/Licence_CeCILL-C_V1-en.txt
*
* Copyright for this code is held jointly by the Genomic platform
* of the Institut de Biologie de l'École normale supérieure and
* the individual authors. These should be listed in @author doc
* comments.
*
* For more information on the Eoulsan project and its aims,
* or to join the Eoulsan Google group, visit the home page
* at:
*
* http://outils.genomique.biologie.ens.fr/eoulsan
*
*/
package fr.ens.biologie.genomique.eoulsan.data;
/**
* This class define source metadata
* @since 1.0
* @author Laurent Jourdren
*/
public interface DataFileMetadata {
/**
* Get the content length of the file.
* @return the content length or -1 if unavailable
*/
long getContentLength();
/**
* Get the content type of the file.
* @return the content type or null if unavailable
*/
String getContentType();
/**
* Get the content type of the file.
* @return the content type or null if unavailable
*/
String getContentEncoding();
/**
* Get the content MD5 of the file.
* @return the content MD5 or null if unavailable
*/
String getContentMD5();
/**
* Get the date of the last modification of the file.
* @return the last modified date in seconds since epoch of -1 if unavailable
*/
long getLastModified();
/**
* Test if the file is a directory.
* @return true if the file is a directory
*/
boolean isDir();
/**
* Test if the file is a symbolic link.
* @return true if the file is symbolic link
*/
boolean isSymbolicLink();
/**
* Get the DataFormat of the file.
* @return the DataFormat of the source
*/
DataFormat getDataFormat();
/**
* Get the symbolic link target.
* @return The target of the symbolic link as DataFile
*/
DataFile getLinkTarget();
}