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yacy_search_server/source/net/yacy/document/Idiom.java

117 lines
4.3 KiB

//Idiom.java
//------------------------
//part of YaCy
//(C) by Michael Peter Christen; mc@yacy.net
//first published on http://www.anomic.de
//Frankfurt, Germany, 2005
//
//this file was contributed by Martin Thelian
//last major change: $LastChangedDate$ by $LastChangedBy$
//Revision: $LastChangedRevision$
//
//This program is free software; you can redistribute it and/or modify
//it under the terms of the GNU General Public License as published by
//the Free Software Foundation; either version 2 of the License, or
//(at your option) any later version.
//
//This program is distributed in the hope that it will be useful,
//but WITHOUT ANY WARRANTY; without even the implied warranty of
//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
//GNU General Public License for more details.
//
//You should have received a copy of the GNU General Public License
//along with this program; if not, write to the Free Software
//Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
package net.yacy.document;
import java.io.File;
import java.io.InputStream;
import java.util.Set;
import net.yacy.cora.document.MultiProtocolURI;
/**
* This interface defines a list of methods that needs to be implemented
* by each content parser class.
* @author Martin Thelian
* @version $LastChangedRevision$ / $LastChangedDate$
*/
public interface Idiom {
/**
* Parsing a document available as byte array
* @param location the origin of the document
* @param mimeType the mimetype of the document
* @param charset the supposed charset of the document or <code>null</code> if unkown
* @param source the content byte array
* @return a {@link Document} containing the extracted plain text of the document
* and some additional metadata.
*
* @throws ParserException if the content could not be parsed properly
*/
public Document parse(MultiProtocolURI location, String mimeType, String charset, byte[] source)
throws ParserException, InterruptedException;
/**
* Parsing a document stored in a {@link File}
* @param location the origin of the document
* @param mimeType the mimetype of the document
* @param charset the supposed charset of the document or <code>null</code> if unkown
* @param sourceFile the file containing the content of the document
* @return a {@link Document} containing the extracted plain text of the document
* and some additional metadata.
*
* @throws ParserException if the content could not be parsed properly
*/
public Document parse(MultiProtocolURI location, String mimeType, String charset, File sourceFile)
throws ParserException, InterruptedException;
/**
* Parsing a document available as {@link InputStream}
* @param location the origin of the document
* @param mimeType the mimetype of the document
* @param charset the supposed charset of the document or <code>null</code> if unkown
* @param source the {@link InputStream} containing the document content
* @return a {@link Document} containing the extracted plain text of the document
* and some additional metadata.
*
* @throws ParserException if the content could not be parsed properly
*/
public Document parse(MultiProtocolURI location, String mimeType, String charset, InputStream source)
throws ParserException, InterruptedException;
/**
* Get the MimeType(s) that are supported by the parser
* @return a set of strings denoting the supported mime types
*/
public Set<String> supportedMimeTypes();
/**
* Get the File extension(s) that are supported by the parser
* @return a set of strings denoting the supported file extensions
*/
public Set<String> supportedExtensions();
/**
* This function should be called before reusing the parser object.
*/
public void reset();
public void setContentLength(long length);
/**
* Returns the name of the parser
* @return parser name
*/
public String getName();
public boolean equals(Object o);
public int hashCode();
}