/* Copyright (C) 2004 J.F.Dockes
* 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.
*/
#ifndef _MH_NULL_H_INCLUDED_
#define _MH_NULL_H_INCLUDED_
#include <string>
#include "cstr.h"
#include "mimehandler.h"
/// Null input handler always returning empty data.
///
/// It may make sense in some cases to set this null filter (no output)
/// instead of using recoll_noindex or leaving the default filter in
/// case one doesn't want to install it: this will avoid endless retries
/// to reindex the affected files, as recoll will think it has succeeded
/// indexing them. Downside: the files won't be indexed when one
/// actually installs the real filter, will need a -z
/// Actually used for empty files.
/// Associated to application/x-zerosize, so use the following in mimeconf:
/// <mimetype> = internal application/x-zerosize
class MimeHandlerNull : public RecollFilter {
public:
MimeHandlerNull(RclConfig *cnf, const std::string& id)
: RecollFilter(cnf, id) {
}
virtual ~MimeHandlerNull() {}
virtual bool is_data_input_ok(DataInput input) const {
return true;
}
virtual bool next_document()
{
if (m_havedoc == false)
return false;
m_havedoc = false;
m_metaData[cstr_dj_keycontent] = cstr_null;
m_metaData[cstr_dj_keymt] = cstr_textplain;
return true;
}
};
#endif /* _MH_NULL_H_INCLUDED_ */