Class: GeoTagger

Inherits:
Base
  • Object
show all
Defined in:
lib/whos_using_what/data_gatherers/geo_tagger.rb

Instance Attribute Summary

Attributes inherited from Base

#set_paths

Instance Method Summary collapse

Methods inherited from Base

set_paths

Constructor Details

#initialize(log) ⇒ GeoTagger

Returns a new instance of GeoTagger.



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# File 'lib/whos_using_what/data_gatherers/geo_tagger.rb', line 11

def initialize log
  @log = log
  @mongo_client = MongoHelper.get_mongo_connection
  @companies_coll = @mongo_client['companies']
  @coords_coll = @mongo_client['coordinates']

  @locations_client = GoogleLocationsClient.new

  #todo this code should possibly be moved somewhere else for clarity / encapsulation
  @coords_coll.remove({"loc" => nil})

  @coords_coll.ensure_index([["loc", Mongo::GEO2D]])
  @companies_coll.ensure_index([["loc", Mongo::GEO2D]])

end

Instance Method Details

#insert_new_zip_entry(zip_code) ⇒ Object 



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# File 'lib/whos_using_what/data_gatherers/geo_tagger.rb', line 44

def insert_new_zip_entry zip_code

  if (zip_acceptance_predicate (zip_code))

    begin
      #todo figure how to do this now that we are using instance variables instead of class variables
      process_zip_closure = lambda {

        resp_map = @locations_client.api_get_google_location_data zip_code

        doc = {}


        doc[:zip] = zip_code

        coords = @locations_client.get_coords_from_google_location_resp_helper resp_map
        if coords[0] && coords[1]
          doc[:loc] = {"lon" => coords[0], "lat" => coords[1]}
        end


        keys_arr = ["AddressDetails", "Country", "AdministrativeArea", "Locality", "LocalityName"]
        MapDataExtractionUtil.safe_extract_helper keys_arr, resp_map, :city, doc

        keys_arr = ["AddressDetails", "Country", "AdministrativeArea", "AdministrativeAreaName"]
        MapDataExtractionUtil.safe_extract_helper keys_arr, resp_map, :state, doc

        keys_arr = ["AddressDetails", "Country", "CountryNameCode"]
        MapDataExtractionUtil.safe_extract_helper keys_arr, resp_map, :country, doc


        if (doc.size > 1 && doc[:country] == "US")
          coll = @coords_coll.find(zip: zip_code).to_a
        end

        if coll && coll.size < 1


          @coords_coll.insert(doc)

        end
      }

      process_zip_closure.call
    rescue Exception => e
      puts e.message
      puts e.backtrace

    end
  end

end

#load_geolocations_into_db ⇒ Object 



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# File 'lib/whos_using_what/data_gatherers/geo_tagger.rb', line 98

def load_geolocations_into_db

  companies = @companies_coll.find()
  companies_arr = companies.to_a
  companies_arr.each do |company|

    if !company
      next
    end


    keys_arr = ['locations', 'values']
    locations = MapDataExtractionUtil.safe_extract_helper keys_arr, company, :nil, nil

    if !locations
      next
    end
    locations.each do |location|

      zip_code = location['address']['postalCode']

      #strip off anything past 5 characters, as we only want main part of zip code
      if !zip_code || zip_code.size < 5
        next
      end

      zip_code = zip_code[0...5]

      insert_new_zip_entry zip_code
    end
  end
end

#update_companies_with_latitude_longitude ⇒ Object 



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# File 'lib/whos_using_what/data_gatherers/geo_tagger.rb', line 131

def update_companies_with_latitude_longitude

  puts "beginning updating of companies with latitude and longitude data"

  @companies_coll.find('loc' => {
      '$exists' => false
  }).to_a.each do |company|


    locations = MapDataExtractionUtil.safe_extract_helper ["locations", "values"], company, nil, nil

    if locations

      locations.each do |location|

        zip = MapDataExtractionUtil.safe_extract_helper ["address", "postalCode"], location, nil, nil

        if zip

          zip = zip[0..4]
          coords = @coords_coll.find_one({:zip => zip})
          if coords != nil

            company["loc"] = coords["loc"]

            puts "updating  geo-coordinates for company with id: " << company["_id"].to_s
            @companies_coll.update({"_id" => company["_id"]}, company)

          end
        end
      end
    end
  end
end

#zip_acceptance_predicate(zip_code) ⇒ Object 



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# File 'lib/whos_using_what/data_gatherers/geo_tagger.rb', line 28

def zip_acceptance_predicate zip_code

  if !zip_code
    return false
  end

  accept = true

  if !zip_code.start_with? ("9")
    accept = false
  end

  accept

end