Contents

module Geokit
  module Geocoders
    class FCCGeocoder < Geocoder
      self.secure = true

      private

      # Template method which does the reverse-geocode lookup.
      def self.do_reverse_geocode(latlng)
        latlng = LatLng.normalize(latlng)
        url = "#{protocol}://data.fcc.gov/api/block/find?format=json&latitude=#{Geokit::Inflector.url_escape(latlng.lat.to_s)}&longitude=#{Geokit::Inflector.url_escape(latlng.lng.to_s)}"
        process :json, url
      end

      # Template method which does the geocode lookup.
      #
      # ==== EXAMPLES
      # ll=Geokit::LatLng.new(40, -85)
      # Geokit::Geocoders::FCCGeocoder.geocode(ll) #

      # JSON result looks like this
      # => {"County"=>{"name"=>"Wayne", "FIPS"=>"18177"},
      # "Block"=>{"FIPS"=>"181770103002004"},
      # "executionTime"=>"0.099",
      # "State"=>{"name"=>"Indiana", "code"=>"IN", "FIPS"=>"18"},
      # "status"=>"OK"}

      def self.parse_json(results)
        if results.key?("Err") && results["Err"]["msg"] == "There are no results for this location"
          return GeoLoc.new
        end
        # this should probably be smarter.
        raise Geokit::Geocoders::GeocodeError if !results["status"] == "OK"

        loc = new_loc
        loc.success       = true
        loc.precision     = "block"
        loc.country_code  = "US"
        loc.district      = results["County"]["name"]
        loc.district_fips = results["County"]["FIPS"]
        loc.state         = results["State"]["code"]
        loc.state_fips    = results["State"]["FIPS"]
        loc.block_fips    = results["Block"]["FIPS"]
        loc
      end
    end
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
geokit-1.10.0	lib/geokit/geocoders/fcc.rb