view rdf/RDFFeatureWriter.h @ 631:3a5ee4b6c9ad

* Complete the overhaul of CSV file import; now you can pick the purpose for
  each column in the file, and SV should do the rest.  The most significant
  practical improvement here is that we can now handle files in which time
  and duration do not necessarily appear in known columns.

/* -*- 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.

    Sonic Annotator
    A utility for batch feature extraction from audio files.

    Mark Levy, Chris Sutton and Chris Cannam, Queen Mary, University of London.
    Copyright 2007-2008 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_FEATURE_WRITER_H_
#define _RDF_FEATURE_WRITER_H_

#include <string>
#include <map>
#include <set>

#include <QString>

#include "transform/FileFeatureWriter.h"

#include "PluginRDFDescription.h"

using std::string;
using std::map;
using std::set;
using std::pair;

class QTextStream;
class QFile;

class RDFFeatureWriter : public FileFeatureWriter
{
public:
    RDFFeatureWriter();
    virtual ~RDFFeatureWriter();

    virtual ParameterList getSupportedParameters() const;
    virtual void setParameters(map<string, string> &params);

    virtual void setTrackMetadata(QString trackid, TrackMetadata metadata);

    virtual void write(QString trackid,
                       const Transform &transform,
                       const Vamp::Plugin::OutputDescriptor &output,
                       const Vamp::Plugin::FeatureList &features,
                       std::string summaryType = "");

    virtual void setFixedEventTypeURI(QString uri); // something of a hack

    virtual void finish();

    virtual QString getWriterTag() const { return "rdf"; }

private:
    typedef map<QString, PluginRDFDescription> RDFDescriptionMap; // by plugin id
    RDFDescriptionMap m_rdfDescriptions;

    typedef map<QString, TrackMetadata> TrackMetadataMap;
    TrackMetadataMap m_metadata;

    QString m_fixedEventTypeURI;

    virtual void reviewFileForAppending(QString filename);

    void writePrefixes(QTextStream *);
    void writeSignalDescription(QTextStream *, QString);
    void writeLocalFeatureTypes(QTextStream *,
                                const Transform &,
                                const Vamp::Plugin::OutputDescriptor &,
                                PluginRDFDescription &);

    void writeSparseRDF(QTextStream *stream,
                        const Transform &transform,
                        const Vamp::Plugin::OutputDescriptor &output,
                        const Vamp::Plugin::FeatureList &features,
                        PluginRDFDescription &desc,
                        QString timelineURI);

    void writeTrackLevelRDF(QTextStream *stream,
                            const Transform &transform,
                            const Vamp::Plugin::OutputDescriptor &output,
                            const Vamp::Plugin::FeatureList &features,
                            PluginRDFDescription &desc,
                            QString signalURI);

    void writeDenseRDF(QTextStream *stream,
                       const Transform &transform,
                       const Vamp::Plugin::OutputDescriptor &output,
                       const Vamp::Plugin::FeatureList &features,
                       PluginRDFDescription &desc,
                       QString signalURI,
                       QString timelineURI);

    set<QString> m_startedTrackIds;

    map<QTextStream *, set<Transform> > m_startedStreamTransforms;

    map<QString, QString> m_trackTrackURIs;
    map<QString, QString> m_trackTimelineURIs;
    map<QString, QString> m_trackSignalURIs;

    map<Transform, QString> m_transformURIs;
    map<Transform, QString> m_syntheticEventTypeURIs;
    map<Transform, QString> m_syntheticSignalTypeURIs;

    typedef pair<QString, Transform> StringTransformPair;
    typedef pair<QTextStream *, QString> StreamBuffer;
    map<StringTransformPair, StreamBuffer> m_openDenseFeatures; // signal URI + transform -> stream + text
    QString m_userAudioFileUri;
    QString m_userTrackUri;
    QString m_userMakerUri;

    bool m_plain;

    bool m_network;
    bool m_networkRetrieved;

    unsigned long m_count;
};

#endif