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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    This file copyright 2008 QMUL.
   
    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.  See the file
    COPYING included with this distribution for more information.
*/

#ifndef _RDF_IMPORTER_H_
#define _RDF_IMPORTER_H_

#include <QObject>
#include <QString>

#include <vector>

class Model;
class RDFImporterImpl;
class ProgressReporter;

class RDFImporter : public QObject
{
    Q_OBJECT

public:
    /**
     * Return the file extensions that we have data file readers for,
     * in a format suitable for use with QFileDialog.  For example,
     * "*.rdf *.n3".
     */
    static QString getKnownExtensions();

    RDFImporter(QString url, int sampleRate = 0);
    virtual ~RDFImporter();

    void setSampleRate(int sampleRate);

    bool isOK();
    QString getErrorString() const;

    std::vector<Model *> getDataModels(ProgressReporter *reporter);

    enum RDFDocumentType {
        AudioRefAndAnnotations,
        Annotations,
        AudioRef,
        OtherRDFDocument,
        NotRDF
    };

    static RDFDocumentType identifyDocumentType(QString url);

protected:
    RDFImporterImpl *m_d;
};

#endif