Module: ADIWG::Mdtranslator::Readers::SbJson::Extent

Defined in:
lib/adiwg/mdtranslator/readers/sbJson/modules/module_extent.rb

Class Method Summary collapse

Class Method Details

.unpack(extentId, hResponseObj) ⇒ Object 



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# File 'lib/adiwg/mdtranslator/readers/sbJson/modules/module_extent.rb', line 18

def self.unpack(extentId, hResponseObj)

   begin
      extentAdd = "http://www.sciencebase.gov/catalog/extent/#{extentId}?format=geojson"
      web_contents = open(extentAdd, :read_timeout => 30) { |f| f.read }
   rescue => readErr
      hResponseObj[:readerExecutionMessages] << 'Failed reading ScienceBase extent - see following message(s):\n'
      hResponseObj[:readerExecutionMessages] << readErr.to_s.slice(0, 300)
      return {}
   else
      # parse geoJson file
      begin
         hGeoJson = JSON.parse(web_contents)
      rescue JSON::JSONError => parseErr
         hResponseObj[:readerExecutionMessages] << 'Parsing extent failed - see following message(s):\n'
         hResponseObj[:readerExecutionMessages] << parseErr.to_s.slice(0, 300)
         return {}
      end
      mdJson = {
         'description' => 'Extent extracted from ScienceBase',
         'geographicExtent' => [
            {
               'description' => 'Geographic Extent imported from USGS ScienceBase',
               'containsData' => true,
               'identifier' => {
                  'identifier' => ''
               },
               'geographicElement' => []
            }
         ]
      }
      mdJson['geographicExtent'][0]['identifier']['identifier'] = extentId.to_s
      mdJson['geographicExtent'][0]['identifier']['namespace'] = 'gov.sciencebase.catalog'
      mdJson['geographicExtent'][0]['geographicElement'] << hGeoJson
      hExtent = ADIWG::Mdtranslator::Readers::MdJson::Extent.unpack(mdJson, hResponseObj)
      return hExtent
   end

end