1 | #ifndef __XIOS_CStoreFilter__ |
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2 | #define __XIOS_CStoreFilter__ |
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3 | |
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4 | #include "input_pin.hpp" |
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5 | |
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6 | namespace xios |
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7 | { |
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8 | class CContext; |
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9 | class CGrid; |
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10 | |
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11 | /*! |
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12 | * A terminal filter which stores all the packets it receives. |
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13 | */ |
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14 | class CStoreFilter : public CInputPin |
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15 | { |
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16 | public: |
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17 | /*! |
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18 | * Constructs the filter with one input slot and an associated |
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19 | * garbage collector for the specified grid and context. |
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20 | * |
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21 | * \param gc the garbage collector associated with this input pin |
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22 | * \param context the context to which the data belongs |
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23 | * \param grid the grid to which the data is attached |
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24 | */ |
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25 | CStoreFilter(CGarbageCollector& gc, CContext* context, CGrid* grid); |
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26 | |
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27 | /*! |
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28 | * Accesses the filter storage and retuns the packet corresponding |
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29 | * to the specified timestamp. If there is no packet available for |
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30 | * the specified timestamp, the function waits until the data is |
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31 | * received or a timeout occurs. |
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32 | * |
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33 | * \param timestamp the timestamp of the requested packet |
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34 | * \return a pointer to a read-only packet |
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35 | */ |
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36 | CConstDataPacketPtr getPacket(Time timestamp); |
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37 | |
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38 | /*! |
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39 | * Accesses the filter storage and retuns the data corresponding |
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40 | * to the specified timestamp. If there is no data available for |
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41 | * the specified timestamp, the function waits until the data is |
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42 | * received or a timeout occurs. |
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43 | * |
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44 | * \param timestamp the timestamp of the requested data |
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45 | * \param data the array where the data is to be copied |
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46 | * \return the status code associated with the data |
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47 | */ |
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48 | template <int N> |
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49 | CDataPacket::StatusCode getData(Time timestamp, CArray<double, N>& data); |
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50 | |
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51 | /*! |
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52 | * Tests whether data is expected for the specified date. |
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53 | * |
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54 | * \param date the date associated to the data |
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55 | */ |
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56 | bool virtual isDataExpected(const CDate& date) const; |
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57 | |
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58 | /*! |
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59 | * Removes all pending packets which are older than the specified timestamp. |
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60 | * |
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61 | * \param timestamp the timestamp used for invalidation |
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62 | */ |
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63 | void virtual invalidate(Time timestamp); |
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64 | |
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65 | protected: |
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66 | /*! |
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67 | * Stores the packet for later access. |
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68 | * |
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69 | * \param data a vector of packets corresponding to each slot |
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70 | */ |
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71 | void virtual onInputReady(std::vector<CDataPacketPtr> data); |
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72 | |
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73 | private: |
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74 | CGarbageCollector& gc; //!< The garbage collector associated to the filter |
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75 | CContext* context; //!< The context to which the data belongs |
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76 | CGrid* grid; //!< The grid attached to the data the filter can accept |
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77 | std::map<Time, CDataPacketPtr> packets; //<! The stored packets |
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78 | }; // class CStoreFilter |
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79 | } // namespace xios |
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80 | |
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81 | #endif //__XIOS_CStoreFilter__ |
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