PluginItemFactory.hpp

// Copyright 2015 GEOSYSTEMS SRL
// All Rights Reserved.

#ifndef FIRE_DATA_PLUGINITEMFACTORY_HPP_INCLUDED
#define FIRE_DATA_PLUGINITEMFACTORY_HPP_INCLUDED

#include <QtCore/QLibrary>
#include <boost/filesystem.hpp>

#include <map>
#include <string>
#include <vector>
#include <exception>

#include "fire/graphics/Painter.hpp"
#include "fire/source/PluginInfo.hpp"
#include "fire/source/raster/DriverType.hpp"
#include "fire/source/raster/shared/LayerRasterSh.hpp"
#include "fire/source/vector/shared/ConnectionVectorSh.hpp"
#include "fire/source/vector/shared/ConnectionSpatialDbSh.hpp"

// OCI forward references
typedef struct OCIEnv OCIEnv;
typedef struct OCISvcCtx OCISvcCtx;

namespace fire {
namespace gis {
namespace data {
class FIRE_GIS_DLL PluginItemFactory {
 public:
  typedef std::vector< std::string > PluginNamespaceList;

  typedef std::vector< std::string > RasterManagerList;

  static PluginItemFactory& getInstance();

  PluginItemFactory();

  source::vector::ConnectionVector::ConnectionVectorShp createConnectionVector(std::string const & nmsp);

  graphics::Painter::PainterShp createPainter(std::string const & nmsp);

  source::PluginInfo::PluginInfoShp getPluginInfo(std::string const & nmsp);

  PluginNamespaceList getPluginList();

  void setPath(std::string const & paths);

  std::string getPath();

  void getRasterNamespaces(const source::raster::DriverType::DriverType & type, RasterManagerList & list);

  source::raster::LayerRaster::LayerRasterShp getLayerRaster(const std::string & name, const std::string & driverName);

  source::vector::ConnectionVector::ConnectionVectorShp createOciConnectionById(int connectionId);

  source::vector::ConnectionVector::ConnectionVectorShp createOciConnection(OCIEnv* env, OCISvcCtx* ctx);

 private:
  typedef boost::shared_ptr< QLibrary > SharedLibShp;
  typedef std::map< std::string, SharedLibShp > PluginMap;
  typedef void * (*startedHandler)();
  typedef source::PluginInfo * (*infoHandler)();
  typedef graphics::Painter * (*createPntHandler)(std::string const & nmsp);
  typedef source::vector::ConnectionVector* (*createCnnHandler)(std::string const & nmsp);
  typedef source::raster::LayerRaster* (*getLayerRasterHandler)(const  std::string& layer, const  std::string& driverManager);
  typedef void* (*getRasterNmspsHandler)(const source::raster::DriverType::DriverType & type, std::vector< std::string > & list);

  static const std::string _INFO_HANDLER_NAME;
  static const std::string _STARTED_HANDLER_NAME;
  static const std::string _BUILDCNNVCT_HANDLER_NAME;
  static const std::string _BUILDPNT_HANDLER_NAME;
  static const std::string _GETRSTNMSPS_HANDLER_NAME;
  static const std::string _GETLAYRST_HANDLER_NAME;
  static const std::string _PATHS_SEPARATOR;
  static const std::string _DLL_FILE_PATTERN;
  static std::string _SEARCH_PATH;

  static PluginItemFactory _instance;

  void _loadPlugins();
  SharedLibShp _getLibrary(std::string const & nmsp);
  void * _getHandler(std::string const & nmsp, std::string const & entry);
  void * _getHandler(SharedLibShp const &lib, std::string const & entry);
  infoHandler _getInfoHandler(std::string const & nmsp);
  infoHandler _getInfoHandler(SharedLibShp const & lib);
  startedHandler _getStartedHandler(std::string const & nmsp);
  startedHandler _getStartedHandler(SharedLibShp const & lib);
  createCnnHandler _getCreateCnnHandler(std::string const & nmsp);
  createCnnHandler _getCreateCnnHandler(SharedLibShp const & lib);
  createPntHandler _getCreatePntHandler(std::string const & nmsp);
  createPntHandler _getCreatePntHandler(SharedLibShp const & lib);
  getRasterNmspsHandler _getGetRasterNamespacesHandler(std::string const & nmsp);
  getRasterNmspsHandler _getGetRasterNamespacesHandler(SharedLibShp const & lib);
  getLayerRasterHandler _getGetLayerRastertHandler(std::string const & nmsp);
  getLayerRasterHandler _getGetLayerRastertHandler(SharedLibShp const & lib);
  source::vector::ConnectionVector::ConnectionVectorShp _createConnection(std::string const & libNmsp, std::string const & nmsp);
  graphics::Painter::PainterShp _createPainter(std::string const & libNmsp, std::string const & nmsp);
  boost::filesystem::path _getBinaryPath();
  void _findPlugin(boost::filesystem::path const & p);
  bool _verifyLib(SharedLibShp const & lib);

  boost::mutex _mtx;
  PluginMap _plugins;
};

}  // namespace data
}  // namespace gis
}  // namespace fire

#endif