Module: ADIWG::Mdtranslator::Readers::MdJson::GeographicExtent

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

Class Method Summary collapse

Class Method Details

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



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# File 'lib/adiwg/mdtranslator/readers/mdJson/modules/module_geographicExtent.rb', line 21

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

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

   # return nil object if input is empty
   if hGeoExt.empty?
      @MessagePath.issueWarning(320, responseObj, inContext)
      return nil
   end

   # instance classes needed in script
   intMetadataClass = InternalMetadata.new
   intGeoExt = intMetadataClass.newGeographicExtent

   outContext = 'geographic extent'
   outContext = inContext + ' > ' + outContext unless inContext.nil?

   haveGExtent = false

   # geographic extent - description
   if hGeoExt.has_key?('description')
      if hGeoExt['description'] != ''
         intGeoExt[:description] = hGeoExt['description']
         haveGExtent = true
      end
   end

   # geographic extent - contains data
   if hGeoExt.has_key?('containsData')
      if hGeoExt['containsData'] === false
         intGeoExt[:containsData] = hGeoExt['containsData']
      end
   end

   # geographic extent - identifier
   if hGeoExt.has_key?('identifier')
      unless hGeoExt['identifier'].empty?
         hReturn = Identifier.unpack(hGeoExt['identifier'], responseObj, outContext)
         unless hReturn.nil?
            intGeoExt[:identifier] = hReturn
         end
         haveGExtent = true
      end
   end

   # geographic extent - bounding box
   if hGeoExt.has_key?('boundingBox')
      unless hGeoExt['boundingBox'].empty?
         hReturn = BoundingBox.unpack(hGeoExt['boundingBox'], responseObj, outContext)
         unless hReturn.nil?
            intGeoExt[:boundingBox] = hReturn
            haveGExtent = true
         end
      end
   end

   # geographic extent - geographic elements
   if hGeoExt.has_key?('geographicElement')
      hGeoExt['geographicElement'].each do |hElement|
         hReturn = GeoJson.unpack(hElement, responseObj, outContext)
         unless hReturn.nil?
            intGeoExt[:geographicElements] << hReturn
            haveGExtent = true
         end
      end
   end

   # save native GeoJson
   if hGeoExt.has_key?('geographicElement')
      unless hGeoExt['geographicElement'].empty?
         intGeoExt[:nativeGeoJson] = hGeoExt['geographicElement']
      end
   end

   # compute bbox for extent
   unless intGeoExt[:geographicElements].empty?
      intGeoExt[:computedBbox] = AdiwgCoordinates.computeBbox(intGeoExt[:geographicElements])
   end

   # error messages
   unless haveGExtent
      @MessagePath.issueError(321, responseObj, inContext)
   end

   return intGeoExt

end