212 lines
6.9 KiB
Python
212 lines
6.9 KiB
Python
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from functools import partial
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from urllib.parse import urlencode
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from geopy.geocoders.base import DEFAULT_SENTINEL, Geocoder
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from geopy.location import Location
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from geopy.util import logger
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__all__ = ("MapQuest", )
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class MapQuest(Geocoder):
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"""Geocoder using the MapQuest API based on Licensed data.
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Documentation at:
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https://developer.mapquest.com/documentation/geocoding-api/
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MapQuest provides two Geocoding APIs:
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- :class:`geopy.geocoders.OpenMapQuest` Nominatim-alike API
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which is based on Open data from OpenStreetMap.
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- :class:`geopy.geocoders.MapQuest` (this class) MapQuest's own API
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which is based on Licensed data.
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"""
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geocode_path = '/geocoding/v1/address'
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reverse_path = '/geocoding/v1/reverse'
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def __init__(
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self,
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api_key,
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*,
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scheme=None,
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timeout=DEFAULT_SENTINEL,
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proxies=DEFAULT_SENTINEL,
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user_agent=None,
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ssl_context=DEFAULT_SENTINEL,
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adapter_factory=None,
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domain='www.mapquestapi.com'
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):
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"""
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:param str api_key: The API key required by Mapquest to perform
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geocoding requests. API keys are managed through MapQuest's "Manage Keys"
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page (https://developer.mapquest.com/user/me/apps).
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:param str scheme:
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See :attr:`geopy.geocoders.options.default_scheme`.
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:param int timeout:
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See :attr:`geopy.geocoders.options.default_timeout`.
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:param dict proxies:
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See :attr:`geopy.geocoders.options.default_proxies`.
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:param str user_agent:
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See :attr:`geopy.geocoders.options.default_user_agent`.
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:type ssl_context: :class:`ssl.SSLContext`
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:param ssl_context:
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See :attr:`geopy.geocoders.options.default_ssl_context`.
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:param callable adapter_factory:
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See :attr:`geopy.geocoders.options.default_adapter_factory`.
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.. versionadded:: 2.0
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:param str domain: base api domain for mapquest
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"""
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super().__init__(
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scheme=scheme,
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timeout=timeout,
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proxies=proxies,
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user_agent=user_agent,
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ssl_context=ssl_context,
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adapter_factory=adapter_factory,
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)
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self.api_key = api_key
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self.domain = domain.strip('/')
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self.geocode_api = (
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'%s://%s%s' % (self.scheme, self.domain, self.geocode_path)
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)
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self.reverse_api = (
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'%s://%s%s' % (self.scheme, self.domain, self.reverse_path)
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)
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def _parse_json(self, json, exactly_one=True):
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'''Returns location, (latitude, longitude) from json feed.'''
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features = json['results'][0]['locations']
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if features == []:
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return None
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def parse_location(feature):
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addr_keys = [
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'street',
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'adminArea6',
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'adminArea5',
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'adminArea4',
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'adminArea3',
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'adminArea2',
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'adminArea1',
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'postalCode'
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]
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location = [feature[k] for k in addr_keys if feature.get(k)]
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return ", ".join(location)
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def parse_feature(feature):
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location = parse_location(feature)
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longitude = feature['latLng']['lng']
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latitude = feature['latLng']['lat']
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return Location(location, (latitude, longitude), feature)
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if exactly_one:
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return parse_feature(features[0])
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else:
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return [parse_feature(feature) for feature in features]
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def geocode(
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self,
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query,
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*,
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exactly_one=True,
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timeout=DEFAULT_SENTINEL,
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limit=None,
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bounds=None
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):
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"""
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Return a location point by address.
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:param str query: The address or query you wish to geocode.
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:param bool exactly_one: Return one result or a list of results, if
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available.
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:param int timeout: Time, in seconds, to wait for the geocoding service
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to respond before raising a :class:`geopy.exc.GeocoderTimedOut`
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exception. Set this only if you wish to override, on this call
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only, the value set during the geocoder's initialization.
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:param int limit: Limit the maximum number of items in the
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response. This will be reset to one if ``exactly_one`` is True.
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:param bounds: The bounding box of the viewport within which
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to bias geocode results more prominently.
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Example: ``[Point(22, 180), Point(-22, -180)]``.
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:type bounds: list or tuple of 2 items of :class:`geopy.point.Point` or
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``(latitude, longitude)`` or ``"%(latitude)s, %(longitude)s"``.
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:rtype: ``None``, :class:`geopy.location.Location` or a list of them, if
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``exactly_one=False``.
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"""
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params = {}
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params['key'] = self.api_key
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params['location'] = query
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if limit is not None:
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params['maxResults'] = limit
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if exactly_one:
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params["maxResults"] = 1
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if bounds:
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params['boundingBox'] = self._format_bounding_box(
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bounds, "%(lat2)s,%(lon1)s,%(lat1)s,%(lon2)s"
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)
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url = '?'.join((self.geocode_api, urlencode(params)))
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logger.debug("%s.geocode: %s", self.__class__.__name__, url)
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callback = partial(self._parse_json, exactly_one=exactly_one)
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return self._call_geocoder(url, callback, timeout=timeout)
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def reverse(
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self,
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query,
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*,
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exactly_one=True,
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timeout=DEFAULT_SENTINEL
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):
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"""
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Return an address by location point.
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:param query: The coordinates for which you wish to obtain the
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closest human-readable addresses.
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:type query: :class:`geopy.point.Point`, list or tuple of ``(latitude,
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longitude)``, or string as ``"%(latitude)s, %(longitude)s"``.
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:param bool exactly_one: Return one result or a list of results, if
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available.
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:param int timeout: Time, in seconds, to wait for the geocoding service
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to respond before raising a :class:`geopy.exc.GeocoderTimedOut`
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exception. Set this only if you wish to override, on this call
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only, the value set during the geocoder's initialization.
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:rtype: ``None``, :class:`geopy.location.Location` or a list of them, if
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``exactly_one=False``.
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"""
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params = {}
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params['key'] = self.api_key
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point = self._coerce_point_to_string(query, "%(lat)s,%(lon)s")
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params['location'] = point
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url = '?'.join((self.reverse_api, urlencode(params)))
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logger.debug("%s.reverse: %s", self.__class__.__name__, url)
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callback = partial(self._parse_json, exactly_one=exactly_one)
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return self._call_geocoder(url, callback, timeout=timeout)
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