DataSource.h

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/*  Copyright (C) 2008 National Institute For Space Research (INPE) - Brazil.
 
    This file is part of the TerraLib - a Framework for building GIS enabled applications.
 
    TerraLib is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
    the Free Software Foundation, either version 3 of the License,
    or (at your option) any later version.
 
    TerraLib 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 Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
    along with TerraLib. See COPYING. If not, write to
    TerraLib Team at <terralib-team@terralib.org>.
 */
 
/*!
  \file terralib/ws/ogc/wms/dataaccess/DataSource.h
 
  \brief Data Source for WS OGC WMS
 
  \author Emerson Moraes
*/
 
#ifndef __TERRALIB_WS_OGC_WMS_DATAACCESS_DATASOURCE_H
#define __TERRALIB_WS_OGC_WMS_DATAACCESS_DATASOURCE_H
 
// STL
#include <map>
#include <string>
#include <memory>
 
//Terralib
#include "Config.h"
#include "../client/WMSClient.h"
#include "../client/DataTypes.h"
#include "../../../../dataaccess/datasource/DataSource.h"
#include "../../../../dataaccess/datasource/DataSourceCapabilities.h"
 
namespace te
{
  namespace ws
  {
    namespace ogc
    {
      namespace wms
      {
        namespace da
        {
        /*!
        \class DataSource
 
        \brief Implementation of the data source for the WMS driver.
        */
        class TEOGCWMSDATAACCESSEXPORT DataSource : public te::da::DataSource
        {
        public:
          DataSource(const std::string& connInfo);
 
          DataSource(const te::core::URI& uri);
 
          ~DataSource();
 
          std::string getType() const;
 
          std::unique_ptr<te::da::DataSourceTransactor> getTransactor();
 
          void open();
 
          void close();
 
          bool isOpened() const;
 
          bool isValid() const;
 
          const te::da::DataSourceCapabilities& getCapabilities() const;
 
          static void setCapabilities(const te::da::DataSourceCapabilities& capabilities);
 
          const te::da::SQLDialect* getDialect() const;
 
          te::ws::ogc::wms::WMSGetMapResponse getMap(const te::ws::ogc::wms::WMSGetMapRequest& request);
 
          /*!
            \brief It execute a WMS GetMap and save the result image on disk.
                   The request will be based on WMSGetMapRequest setted to this WMSLayer.
 
            \return std::string with saved image path.
            */
          const std::string saveGetMap(const te::ws::ogc::wms::WMSGetMapRequest &request, const std::string& filename);
 
          const te::ws::ogc::wms::WMSGetFeatureInfoResponse getFeatureInfo(const te::ws::ogc::wms::WMSGetFeatureInfoRequest& request);
 
          std::shared_ptr<te::ws::ogc::WMSClient> getWMSClient();
 
        protected:
 
          void create(const std::string& connInfo);
 
          void drop(const std::string& connInfo);
 
          bool exists(const std::string& connInfo);
 
          std::vector<std::string> getDataSourceNames(const std::string& connInfo);
 
          std::vector<te::core::EncodingType> getEncodings(const std::string& connInfo);
 
        private:
 
          void verifyConnectionInfo() const;
 
        private:
 
          std::shared_ptr<te::ws::ogc::WMSClient> m_wms;
          bool                                    m_isOpened;
          static te::da::DataSourceCapabilities sm_capabilities;
        };
        } // end namespace da
      } // end namespace wms
    } // end namespace ogc
  } // end namespace ws
} // end namespace te
 
#endif // __TERRALIB_WS_OGC_WMS_DATAACCESS_DATASOURCE_H