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			113 lines
		
	
	
	
		
			3.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			113 lines
		
	
	
	
		
			3.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
#include <scwx/wsr88d/rpg/packet_factory.hpp>
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#include <scwx/util/logger.hpp>
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#include <scwx/wsr88d/rpg/cell_trend_data_packet.hpp>
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#include <scwx/wsr88d/rpg/cell_trend_volume_scan_times.hpp>
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#include <scwx/wsr88d/rpg/digital_precipitation_data_array_packet.hpp>
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#include <scwx/wsr88d/rpg/digital_radial_data_array_packet.hpp>
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#include <scwx/wsr88d/rpg/generic_data_packet.hpp>
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#include <scwx/wsr88d/rpg/hda_hail_symbol_packet.hpp>
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#include <scwx/wsr88d/rpg/linked_contour_vector_packet.hpp>
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#include <scwx/wsr88d/rpg/linked_vector_packet.hpp>
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#include <scwx/wsr88d/rpg/mesocyclone_symbol_packet.hpp>
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#include <scwx/wsr88d/rpg/point_feature_symbol_packet.hpp>
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#include <scwx/wsr88d/rpg/point_graphic_symbol_packet.hpp>
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#include <scwx/wsr88d/rpg/precipitation_rate_data_array_packet.hpp>
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#include <scwx/wsr88d/rpg/radial_data_packet.hpp>
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#include <scwx/wsr88d/rpg/raster_data_packet.hpp>
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#include <scwx/wsr88d/rpg/scit_data_packet.hpp>
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#include <scwx/wsr88d/rpg/set_color_level_packet.hpp>
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#include <scwx/wsr88d/rpg/sti_circle_symbol_packet.hpp>
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#include <scwx/wsr88d/rpg/storm_id_symbol_packet.hpp>
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#include <scwx/wsr88d/rpg/text_and_special_symbol_packet.hpp>
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#include <scwx/wsr88d/rpg/unlinked_contour_vector_packet.hpp>
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#include <scwx/wsr88d/rpg/unlinked_vector_packet.hpp>
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#include <scwx/wsr88d/rpg/vector_arrow_data_packet.hpp>
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#include <scwx/wsr88d/rpg/wind_barb_data_packet.hpp>
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#include <unordered_map>
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namespace scwx
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{
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namespace wsr88d
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{
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namespace rpg
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{
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static const std::string logPrefix_ = "scwx::wsr88d::rpg::packet_factory";
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static const auto        logger_    = util::Logger::Create(logPrefix_);
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typedef std::function<std::shared_ptr<Packet>(std::istream&)>
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   CreateMessageFunction;
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static const std::unordered_map<unsigned int, CreateMessageFunction> create_ {
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   {1, TextAndSpecialSymbolPacket::Create},
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   {2, TextAndSpecialSymbolPacket::Create},
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   {3, MesocycloneSymbolPacket::Create},
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   {4, WindBarbDataPacket::Create},
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   {5, VectorArrowDataPacket::Create},
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   {6, LinkedVectorPacket::Create},
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   {7, UnlinkedVectorPacket::Create},
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   {8, TextAndSpecialSymbolPacket::Create},
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   {9, LinkedVectorPacket::Create},
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   {10, UnlinkedVectorPacket::Create},
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   {11, MesocycloneSymbolPacket::Create},
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   {12, PointGraphicSymbolPacket::Create},
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   {13, PointGraphicSymbolPacket::Create},
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   {14, PointGraphicSymbolPacket::Create},
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   {15, StormIdSymbolPacket::Create},
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   {16, DigitalRadialDataArrayPacket::Create},
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   {17, DigitalPrecipitationDataArrayPacket::Create},
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   {18, PrecipitationRateDataArrayPacket::Create},
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   {19, HdaHailSymbolPacket::Create},
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   {20, PointFeatureSymbolPacket::Create},
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   {21, CellTrendDataPacket::Create},
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   {22, CellTrendVolumeScanTimes::Create},
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   {23, ScitDataPacket::Create},
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   {24, ScitDataPacket::Create},
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   {25, StiCircleSymbolPacket::Create},
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   {26, PointGraphicSymbolPacket::Create},
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   {28, GenericDataPacket::Create},
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   {29, GenericDataPacket::Create},
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   {0x0802, SetColorLevelPacket::Create},
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   {0x0E03, LinkedContourVectorPacket::Create},
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   {0x3501, UnlinkedContourVectorPacket::Create},
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   {0xAF1F, RadialDataPacket::Create},
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   {0xBA07, RasterDataPacket::Create},
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   {0xBA0F, RasterDataPacket::Create}};
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std::shared_ptr<Packet> PacketFactory::Create(std::istream& is)
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{
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   std::shared_ptr<Packet> packet      = nullptr;
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   bool                    packetValid = true;
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   uint16_t packetCode;
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   is.read(reinterpret_cast<char*>(&packetCode), 2);
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   packetCode = ntohs(packetCode);
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   if (is.eof())
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   {
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      packetValid = false;
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   }
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   is.seekg(-2, std::ios_base::cur);
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   if (packetValid && create_.find(packetCode) == create_.end())
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   {
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      logger_->warn("Unknown packet code: {0} (0x{0:x})", packetCode);
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      packetValid = false;
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   }
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   if (packetValid)
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   {
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      logger_->trace("Found packet code: {0} (0x{0:x})", packetCode);
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      packet = create_.at(packetCode)(is);
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   }
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   return packet;
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}
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} // namespace rpg
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} // namespace wsr88d
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} // namespace scwx
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