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require 'geocoder/lookups/base'
require "geocoder/results/bing"
module Geocoder::Lookup
class Bing < Base
def name
"Bing"
end
def map_link_url(coordinates)
"http://www.bing.com/maps/default.aspx?cp=#{coordinates.join('~')}"
end
def required_api_key_parts
["key"]
end
private # ---------------------------------------------------------------
def base_query_url(query)
text = ERB::Util.url_encode(query.sanitized_text.strip)
url = "#{protocol}://dev.virtualearth.net/REST/v1/Locations/"
if query.reverse_geocode?
url + "#{text}?"
else
if r = query.options[:region]
url << "#{r}/"
end
# use the more forgiving 'unstructured' query format to allow special
# chars, newlines, brackets, typos.
url + "?q=#{text}&"
end
end
def results(query)
return [] unless doc = fetch_data(query)
if doc['statusCode'] == 200
return doc['resourceSets'].first['estimatedTotal'] > 0 ? doc['resourceSets'].first['resources'] : []
elsif doc['statusCode'] == 401 and doc["authenticationResultCode"] == "InvalidCredentials"
raise_error(Geocoder::InvalidApiKey) || Geocoder.log(:warn, "Invalid Bing API key.")
elsif doc['statusCode'] == 403
raise_error(Geocoder::RequestDenied) || Geocoder.log(:warn, "Bing Geocoding API error: Forbidden Request")
elsif [500, 503].include?(doc['statusCode'])
raise_error(Geocoder::ServiceUnavailable) ||
Geocoder.log(:warn, "Bing Geocoding API error: Service Unavailable")
else
Geocoder.log(:warn, "Bing Geocoding API error: #{doc['statusCode']} (#{doc['statusDescription']}).")
end
return []
end
def query_url_params(query)
{
key: configuration.api_key,
culture: (query.language || configuration.language)
}.merge(super)
end
def check_response_for_errors!(response)
super
if server_overloaded?(response)
raise_error(Geocoder::ServiceUnavailable) ||
Geocoder.log(:warn, "Bing Geocoding API error: Service Unavailable")
end
end
def valid_response?(response)
super(response) and not server_overloaded?(response)
end
def server_overloaded?(response)
# Occasionally, the servers processing service requests can be overloaded,
# and you may receive some responses that contain no results for queries that
# you would normally receive a result. To identify this situation,
# check the HTTP headers of the response. If the HTTP header X-MS-BM-WS-INFO is set to 1,
# it is best to wait a few seconds and try again.
response['x-ms-bm-ws-info'].to_i == 1
end
end
end
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