Module: ADIWG::Mdtranslator::Readers::MdJson::NominalResolution

Defined in:
lib/adiwg/mdtranslator/readers/mdJson/modules/module_nominalResolution.rb

Class Method Summary collapse

Class Method Details

.unpack(hResolution, responseObj, inContext = nil) ⇒ Object 



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# File 'lib/adiwg/mdtranslator/readers/mdJson/modules/module_nominalResolution.rb', line 16

def self.unpack(hResolution, responseObj, inContext = nil)

   @MessagePath = ADIWG::Mdtranslator::Readers::MdJson::MdJson

   # return nil object if input is empty
   if hResolution.empty?
      @MessagePath.issueWarning(960, responseObj, inContext)
      return nil
   end

   # instance classes needed in script
   intMetadataClass = InternalMetadata.new
   intResolution = intMetadataClass.newNominalResolution

   outContext = 'nominal resolution'
   outContext = inContext + ' > ' + outContext unless inContext.nil?

   haveRequired = 0

   # nominal resolution - scanning resolution (required if)
   if hResolution.has_key?('scanningResolution')
      hMeasure = hResolution['scanningResolution']
      unless hMeasure.empty?
         hMeasure['type'] = 'distance'
         hReturn = Measure.unpack(hMeasure, responseObj, outContext)
         unless hReturn.nil?
            intResolution[:scanningResolution] = hReturn
            haveRequired += 1
         end
      end
   end

   # nominal resolution - ground resolution (required if)
   if hResolution.has_key?('groundResolution')
      hMeasure = hResolution['groundResolution']
      unless hMeasure.empty?
         hMeasure['type'] = 'distance'
         hReturn = Measure.unpack(hMeasure, responseObj, outContext)
         unless hReturn.nil?
            intResolution[:groundResolution] = hReturn
            haveRequired += 1
         end
      end
   end

   unless haveRequired > 0
      @MessagePath.issueError(961, responseObj, inContext)
   end

   if haveRequired == 2
      @MessagePath.issueError(962, responseObj, inContext)
   end

   return intResolution

end