qgssensorthingsprovider.h

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/***************************************************************************
      qgssensorthingsprovider.h
      ----------------
    begin                : November 2023
    copyright            : (C) 2013 Nyall Dawson
    email                : nyall dot dawson at gmail dot com
 ***************************************************************************/
 
/***************************************************************************
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 ***************************************************************************/
 
#ifndef QGSSENSORTHINGSPROVIDER_H
#define QGSSENSORTHINGSPROVIDER_H
 
#include "qgsvectordataprovider.h"
#include "qgssensorthingsshareddata.h"
#include "qgsprovidermetadata.h"
 
#define SIP_NO_FILE
 
class CORE_EXPORT QgsSensorThingsProvider final : public QgsVectorDataProvider
{
    Q_OBJECT
 
  public:
 
    static const inline QString SENSORTHINGS_PROVIDER_KEY = QStringLiteral( "sensorthings" );
    static const inline QString SENSORTHINGS_PROVIDER_DESCRIPTION = QStringLiteral( "OGC SensorThings API data provider" );
 
    QgsSensorThingsProvider( const QString &uri, const QgsDataProvider::ProviderOptions &providerOptions, QgsDataProvider::ReadFlags flags = QgsDataProvider::ReadFlags() );
 
    QgsAbstractFeatureSource *featureSource() const final;
    QString storageType() const final;
    QgsFeatureIterator getFeatures( const QgsFeatureRequest &request = QgsFeatureRequest() ) const final;
    Qgis::WkbType wkbType() const final;
    long long featureCount() const final;
    QgsFields fields() const final;
    QgsLayerMetadata layerMetadata() const final;
    QString htmlMetadata() const final;
 
    Qgis::DataProviderFlags flags() const final;
    QgsVectorDataProvider::Capabilities capabilities() const final;
    bool supportsSubsetString() const final;
    QString subsetString() const final;
    bool setSubsetString( const QString &subset, bool updateFeatureCount = true ) final;
    QgsCoordinateReferenceSystem crs() const final;
    void setDataSourceUri( const QString &uri ) final;
    QgsRectangle extent() const final;
    bool isValid() const final { return mValid; }
 
    QString name() const final;
    QString description() const final;
    bool renderInPreview( const QgsDataProvider::PreviewContext &context ) final;
 
    static QString providerKey();
 
    void handlePostCloneOperations( QgsVectorDataProvider *source ) final;
 
  private:
    bool mValid = false;
    std::shared_ptr<QgsSensorThingsSharedData> mSharedData;
 
    QgsLayerMetadata mLayerMetadata;
 
    void reloadProviderData() final;
};
 
class QgsSensorThingsProviderMetadata final: public QgsProviderMetadata
{
    Q_OBJECT
 
  public:
    QgsSensorThingsProviderMetadata();
    QIcon icon() const final;
    QList<QgsDataItemProvider *> dataItemProviders() const final;
    QVariantMap decodeUri( const QString &uri ) const final;
    QString encodeUri( const QVariantMap &parts ) const final;
    QgsSensorThingsProvider *createProvider( const QString &uri, const QgsDataProvider::ProviderOptions &options, QgsDataProvider::ReadFlags flags = QgsDataProvider::ReadFlags() ) final;
    QList< Qgis::LayerType > supportedLayerTypes() const final;
 
    // handling of stored connections
 
    QMap<QString, QgsAbstractProviderConnection *> connections( bool cached ) final;
    QgsAbstractProviderConnection *createConnection( const QString &name ) final;
    void deleteConnection( const QString &name ) final;
    void saveConnection( const QgsAbstractProviderConnection *connection, const QString &name ) final;
 
};
 
#endif // QGSSENSORTHINGSPROVIDER_H