| 1 | #include "file_reader_source_filter.hpp" |
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| 2 | #include "grid.hpp" |
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| 3 | #include "exception.hpp" |
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| 4 | #include "calendar_util.hpp" |
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| 5 | #include "context.hpp" |
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| 6 | #include "field.hpp" |
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| 7 | #include "file.hpp" |
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| 8 | #include "context.hpp" |
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| 9 | |
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| 10 | |
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| 11 | namespace xios |
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| 12 | { |
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| 13 | CFileReaderSourceFilter::CFileReaderSourceFilter(CGarbageCollector& gc, CField* field) |
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| 14 | : COutputPin(gc) |
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| 15 | { |
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| 16 | field_ = field ; |
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| 17 | grid_ = field->getGrid() ; |
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| 18 | file_ = field->getFileIn() ; |
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| 19 | if (!file_->cyclic.isEmpty()) isCyclic_ = file_->cyclic ; |
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| 20 | if (!field_->scale_factor.isEmpty()) { hasScaleFactor_=true ; scaleFactor_ = field_->scale_factor ; } |
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| 21 | if (!field_->add_offset.isEmpty()) { hasAddOffset_=true ; addOffset_ = field_->add_offset ; } |
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| 22 | } |
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| 23 | |
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| 24 | void CFileReaderSourceFilter::streamData() |
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| 25 | { |
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| 26 | Time timeStamp ; |
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| 27 | CDataPacketPtr packet(new CDataPacket); |
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| 28 | packet->date = CContext::getCurrent()->getCalendar()->getCurrentDate(); |
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| 29 | packet->timestamp = timeStamp; |
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| 30 | packet->status = CDataPacket::NO_ERROR; |
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| 31 | |
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| 32 | if (!isInitialized_) initialize() ; |
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| 33 | CField::EReadField readState = CField::RF_DATA; |
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| 34 | if ( nStepMax_==0 || (nStep_ >= nStepMax_ && !isCyclic_)) readState = CField::RF_EOF; |
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| 35 | |
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| 36 | if (CField::RF_EOF != readState) |
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| 37 | { |
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| 38 | if (!file_->isEmptyZone()) readData(packet->data) ; |
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| 39 | else readState = CField::RF_NODATA; |
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| 40 | } |
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| 41 | nStep_++ ; |
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| 42 | |
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| 43 | if (readState == CField::RF_DATA) packet->status = CDataPacket::NO_ERROR; |
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| 44 | else packet->status = CDataPacket::END_OF_STREAM; |
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| 45 | |
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| 46 | info(20)<<"Read data from file : FieldId "<<field_->getId()<<" nStep "<<nStep_<<" date : "<<packet->date<<endl ; |
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| 47 | |
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| 48 | onOutputReady(packet); |
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| 49 | } |
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| 50 | |
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| 51 | void CFileReaderSourceFilter::initialize() |
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| 52 | { |
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| 53 | CContext* context = CContext::getCurrent(); |
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| 54 | file_->initRead(); |
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| 55 | if (!file_->isEmptyZone()) |
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| 56 | { |
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| 57 | file_->checkReadFile(); |
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| 58 | nStepMax_ = file_->getDataInput()->getFieldNbRecords(field_); |
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| 59 | nStep_ = file_->record_offset.isEmpty() ? 0 : file_->record_offset; ; |
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| 60 | } |
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| 61 | MPI_Allreduce(MPI_IN_PLACE, &nStepMax_, 1, MPI_INT, MPI_MAX, context->getIntraComm()); |
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| 62 | isInitialized_=true; |
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| 63 | } |
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| 64 | |
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| 65 | void CFileReaderSourceFilter::readData(CArray<double,1>& data) |
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| 66 | { |
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| 67 | CGridLocalConnector* connector = grid_->getFullToWorkflowConnector() ; |
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| 68 | CArray<double,1> dataIn(connector->getSrcSize()) ; |
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| 69 | file_->getDataInput()->readFieldData(field_, nStep_%nStepMax_, dataIn); |
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| 70 | data.resize(connector->getDstSize()) ; |
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| 71 | connector->transfer(dataIn, data) ; |
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| 72 | |
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| 73 | if (hasScaleFactor_ || hasAddOffset_) data = data * scaleFactor_ + addOffset_; // possibility of optimization |
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| 74 | } |
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| 75 | |
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| 76 | |
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| 77 | } // namespace xios |
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