def test_pro_sort_AttrSorter(self):
"""Test AttrSorter postprocessor."""
candidates_in = [self.better, self.best, self.good]
candidates_exp = [self.good, self.better, self.best]
candidates_out = AttrSorter(
self.locators_worse_to_better).process(candidates_in)
self.assertEqual_(candidates_out, candidates_exp)
class _EsriNAGeocodeService():
"""
Defaults for the _EsriNAGeocodeService
"""
LOCATOR_MAP = {
'RoofTop': 'rooftop',
'Streets': 'interpolation',
}
DEFAULT_PREPROCESSORS = [CountryPreProcessor(['US', 'CA'])]
DEFAULT_POSTPROCESSORS = [
AttrRename('locator', LOCATOR_MAP),
AttrFilter(['rooftop', 'interpolation'], 'locator'),
AttrSorter(['rooftop', 'interpolation'], 'locator'),
UseHighScoreIfAtLeast(99.8),
GroupBy('match_addr'),
ScoreSorter(),
]
class EsriWGS(GeocodeService):
"""
Class to geocode using the `ESRI World Geocoding service
<http://geocode.arcgis.com/arcgis/geocoding.html>`_.
This uses two endpoints -- one for single-line addresses,
and one for multi-part addresses.
An optional (key) parameter can be passed to the PlaceQuery
which will be passed as a magicKey to the find endpoint if
using a single line address/text search. This allows omgeo
to be used with the `Esri suggest endpoint
<https://developers.arcgis.com/rest/geocode/api-reference/geocoding-suggest.htm>`_.
Note: Based on tests using the magicKey parameter, it is
recommended that a viewbox not be used with in conjuction
with the magicKey. Additionally, address/search text passed
via the query may be ignored when using a magicKey.
"""
LOCATOR_MAP = {
'PointAddress': 'rooftop',
'StreetAddress': 'interpolation',
'PostalExt': 'postal_specific', # accept ZIP+4
'Postal': 'postal'
}
DEFAULT_PREPROCESSORS = [CancelIfPOBox()]
DEFAULT_POSTPROCESSORS = [
AttrFilter(
[
'PointAddress',
'StreetAddress',
#'PostalExt',
#'Postal'
],
'locator_type'),
#AttrExclude(['USA_Postal'], 'locator'), #accept postal from everywhere but US (need PostalExt)
AttrSorter(
[
'PointAddress',
'StreetAddress',
#'PostalExt',
#'Postal'
],
'locator_type'),
AttrRename(
'locator',
LOCATOR_MAP), # after filter to avoid searching things we toss out
UseHighScoreIfAtLeast(99.8),
ScoreSorter(),
GroupBy('match_addr'),
GroupBy(('x', 'y')),
]
_endpoint = 'http://geocode.arcgis.com/arcgis/rest/services/World/GeocodeServer'
def _geocode(self, pq):
"""
:arg PlaceQuery pq: PlaceQuery object to use for geocoding
:returns: list of location Candidates
"""
#: List of desired output fields
#: See `ESRI docs <http://geocode.arcgis.com/arcgis/geocoding.html#output>_` for details
outFields = (
'Loc_name',
#'Shape',
'Score',
'Match_Addr', #based on address standards for the country
#'Address', # returned by default
#'Country' # 3-digit ISO 3166-1 code for a country. Example: Canada = "CAN"
#'Admin',
#'DepAdmin',
#'SubAdmin',
#'Locality',
#'Postal',
#'PostalExt',
'Addr_Type',
#'Type',
#'Rank',
'AddNum',
'StPreDir',
'StPreType',
'StName',
'StType',
'StDir',
#'Side',
#'AddNumFrom',
#'AddNumTo',
#'AddBldg',
'City',
'Subregion',
'Region',
'Postal',
'Country',
#'Ymax',
#'Ymin',
#'Xmin',
#'Xmax',
#'X',
#'Y',
'DisplayX',
'DisplayY',
#'LangCode',
#'Status',
)
outFields = ','.join(outFields)
query = dict(
f='json', # default HTML. Other options are JSON and KMZ.
outFields=outFields,
#outSR=WKID, defaults to 4326
maxLocations=20, # default 1; max is 20
)
# Postal-code only searches work in the single-line but not multipart geocoder
# Remember that with the default postprocessors, postcode-level results will be eliminated
if pq.query == pq.address == '' and pq.postal != '':
pq.query = pq.postal
if pq.query == '': # multipart
method = 'findAddressCandidates'
query = dict(
query,
Address=pq.
address, # commonly represents the house number and street name of a complete address
Neighborhood=pq.neighborhood,
City=pq.city,
Subregion=pq.subregion,
Region=pq.state,
Postal=pq.postal,
#PostalExt=
CountryCode=pq.
country, # full country name or ISO 3166-1 2- or 3-digit country code
)
if pq.bounded and pq.viewbox is not None:
query = dict(query, searchExtent=pq.viewbox.to_esri_wgs_json())
else: # single-line
method = 'find'
magic_key = pq.key if hasattr(pq, 'key') else ''
query = dict(
query,
text=pq.
query, # This can be a street address, place name, postal code, or POI.
sourceCountry=pq.
country, # full country name or ISO 3166-1 2- or 3-digit country code
)
if magic_key:
query[
'magicKey'] = magic_key # This is a lookup key returned from the suggest endpoint.
if pq.bounded and pq.viewbox is not None:
query = dict(query, bbox=pq.viewbox.to_esri_wgs_json())
endpoint = self._endpoint + '/' + method
response_obj = self._get_json_obj(endpoint, query)
returned_candidates = [] # this will be the list returned
try:
if method == 'find':
locations = response_obj['locations']
else:
locations = response_obj['candidates']
for location in locations:
c = Candidate()
if method == 'find': # singlepart
attributes = location['feature']['attributes']
else: # findAddressCandidates / multipart
attributes = location['attributes']
c.match_addr = attributes['Match_Addr']
c.locator = attributes['Loc_name']
c.locator_type = attributes['Addr_Type']
c.score = attributes['Score']
c.x = attributes[
'DisplayX'] # represents the actual location of the address.
c.y = attributes['DisplayY']
c.wkid = response_obj['spatialReference']['wkid']
c.geoservice = self.__class__.__name__
# Optional address component fields.
for in_key, out_key in [('City', 'match_city'),
('Subregion', 'match_subregion'),
('Region', 'match_region'),
('Postal', 'match_postal'),
('Country', 'match_country')]:
setattr(c, out_key, attributes.get(in_key, ''))
setattr(c, 'match_streetaddr',
self._street_addr_from_response(attributes))
returned_candidates.append(c)
except KeyError:
pass
return returned_candidates
def _street_addr_from_response(self, attributes):
"""Construct a street address (no city, region, etc.) from a geocoder response.
:param attributes: A dict of address attributes as returned by the Esri geocoder.
"""
# The exact ordering of the address component fields that should be
# used to reconstruct the full street address is not specified in the
# Esri documentation, but the examples imply that it is this.
ordered_fields = [
'AddNum', 'StPreDir', 'StPreType', 'StName', 'StType', 'StDir'
]
result = []
for field in ordered_fields:
result.append(attributes.get(field, ''))
if any(result):
return ' '.join([s for s in result
if s]) # Filter out empty strings.
else:
return ''
def __init__(self, preprocessors=None, postprocessors=None, settings=None):
preprocessors = EsriWGS.DEFAULT_PREPROCESSORS if preprocessors is None else preprocessors
postprocessors = EsriWGS.DEFAULT_POSTPROCESSORS if postprocessors is None else postprocessors
GeocodeService.__init__(self, preprocessors, postprocessors, settings)
class Bing(GeocodeService):
"""
Class to geocode using Bing services:
* `Find a Location by Query <http://msdn.microsoft.com/en-us/library/ff701711.aspx>`_
* `Find a Location by Address <http://msdn.microsoft.com/en-us/library/ff701714.aspx>`_
Settings used by the Bing GeocodeService object may include:
* api_key -- The API key used to access Bing services.
"""
_endpoint = 'http://dev.virtualearth.net/REST/v1/Locations'
DEFAULT_PREPROCESSORS = [ReplaceRangeWithNumber()]
DEFAULT_POSTPROCESSORS = [
AttrMigrator('confidence', 'score', {
'High': 100,
'Medium': 85,
'Low': 50
}),
UseHighScoreIfAtLeast(100),
AttrFilter([
'Address', 'AdministrativeBuilding', 'AgriculturalStructure',
'BusinessName', 'BusinessStructure', 'BusStation', 'Camp',
'Church', 'CityHall', 'CommunityCenter', 'ConventionCenter',
'Courthouse', 'Factory', 'FerryTerminal', 'FishHatchery', 'Fort',
'Garden', 'Geyser', 'Heliport', 'IndustrialStructure',
'InformationCenter', 'Junction', 'LandmarkBuilding', 'Library',
'Lighthouse', 'Marina', 'MedicalStructure', 'MetroStation', 'Mine',
'Mission', 'Monument', 'Mosque', 'Museum', 'NauticalStructure',
'NavigationalStructure', 'OfficeBuilding', 'ParkAndRide',
'PlayingField', 'PoliceStation', 'PostOffice', 'PowerStation',
'Prison', 'RaceTrack', 'ReligiousStructure', 'RestArea', 'Ruin',
'ShoppingCenter', 'Site', 'SkiArea', 'Spring', 'Stadium', 'Temple',
'TouristStructure'
], 'entity'),
AttrRename(
'locator',
dict(Rooftop='rooftop',
Parcel='parcel',
ParcelCentroid='parcel',
Interpolation='interpolation',
InterpolationOffset='interpolation_offset')),
AttrSorter(
['rooftop', 'parcel', 'interpolation_offset', 'interpolation'],
'locator'),
AttrSorter(['Address'], 'entity'),
ScoreSorter(),
GroupBy(('x', 'y')),
GroupBy('match_addr')
]
DEFAULT_POSTPROCESSORS = []
def __init__(self, preprocessors=None, postprocessors=None, settings=None):
preprocessors = Bing.DEFAULT_PREPROCESSORS if preprocessors is None else preprocessors
postprocessors = Bing.DEFAULT_POSTPROCESSORS if postprocessors is None else postprocessors
GeocodeService.__init__(self, preprocessors, postprocessors, settings)
def _geocode(self, pq):
if pq.query.strip() == '':
# No single line query string; use address elements:
query = {
'addressLine': pq.address,
'locality': pq.city,
'adminDistrict': pq.state,
'postalCode': pq.postal,
'countryRegion': pq.country
}
else:
query = {'query': pq.query}
if pq.viewbox is not None:
query = dict(query, **{'umv': pq.viewbox.to_bing_str()})
if hasattr(pq, 'culture'):
query = dict(query, c=pq.culture)
if hasattr(pq, 'user_ip'):
query = dict(query, uip=pq.user_ip)
if hasattr(pq, 'user_lat') and hasattr(pq, 'user_lon'):
query = dict(query, **{'ul': '%f,%f' % (pq.user_lat, pq.user_lon)})
addl_settings = {'key': self._settings['api_key']}
query = dict(query, **addl_settings)
response_obj = self._get_json_obj(self._endpoint, query)
returned_candidates = [] # this will be the list returned
for r in response_obj['resourceSets'][0]['resources']:
c = Candidate()
c.entity = r['entityType']
c.locator = r['geocodePoints'][0][
'calculationMethod'] # ex. "Parcel"
c.confidence = r['confidence'] # High|Medium|Low
c.match_addr = r[
'name'] # ex. "1 Microsoft Way, Redmond, WA 98052"
c.x = r['geocodePoints'][0]['coordinates'][1] # long, ex. -122.13
c.y = r['geocodePoints'][0]['coordinates'][0] # lat, ex. 47.64
c.wkid = 4326
c.geoservice = self.__class__.__name__
returned_candidates.append(c)
return returned_candidates
def setUp(self):
# Viewbox objects - callowhill is from BSS Spring Garden station to Wash. Sq.
vb = {
'callowhill': Viewbox(-75.162628, 39.962769, -75.150963, 39.956322)
}
# PlaceQuery objects
self.pq = { # North American Addresses:
'azavea': PlaceQuery('340 N 12th St Ste 402 Philadelphia PA'),
'ambiguous_azavea': PlaceQuery('340 12th St Ste 402 Philadelphia PA'),
'zip_plus_4_in_postal_plus_country': PlaceQuery(postal='19127-1115', country='US'),
'wolf': PlaceQuery('Wolf Building'),
'wolf_philly': PlaceQuery('Wolf Building, Philadelphia PA'),
'wolf_bounded': PlaceQuery('Wolf Building', bounded=True, viewbox=vb['callowhill']),
'bounded_340_12th': PlaceQuery('340 12th St, Philadelphia PA',
bounded=True, viewbox=vb['callowhill']),
'alpha_774R_W_Central_Ave': PlaceQuery('774R W Central Ave Alpha NJ'),
'alpha_774_W_Central_Ave_Rear': PlaceQuery('774 W Central Ave Rear, Alpha NJ'),
'8_kirkbride': PlaceQuery('8 Kirkbride Rd 08822'),
'george_washington': PlaceQuery('201 W Montmorency Blvd, George, Washington'),
'pine_needles_dr': PlaceQuery('11761 pine needles providence forge'),
'pine_needles_ct': PlaceQuery('5328 pine needles providence forge'),
'pine_needles_terr': PlaceQuery('5359 pine needles providence forge'),
'moorestown_hyphenated': PlaceQuery('111-113 W Main St Moorestown NJ'),
'willow_street': PlaceQuery('2819F Willow Street Pike Willow Street PA'),
'willow_street_parts': PlaceQuery(address='2819F Willow Street Pike',
city='Willow Street', state='PA', country='US'),
'quebec': PlaceQuery('756 Rue Berri Montreal QC', country='CA'),
'quebec_accent': PlaceQuery('527 Ch. Beauséjour, Saint-Elzéar-de-Témiscouata QC'),
'quebec_hyphenated': PlaceQuery('227-227A Rue Commerciale, Saint-Louis-du-Ha! Ha! QC'),
'senado_mx': PlaceQuery('Paseo de la Reforma 135, Tabacalera, Cuauhtémoc, Distrito Federal, 06030'),
'senado_mx_struct': PlaceQuery(address='Paseo de la Reforma 135', neighborhood='Tabacalera, Cuauhtémoc', subregion='', state='Distrito Federal', postal='06030', country='MX'),
'robert_cheetham': PlaceQuery('Robert Cheetham, Philadelphia'),
# European Addresses:
'london_pieces': PlaceQuery(address='31 Maiden Lane', city='London', country='UK'),
'london_one_line': PlaceQuery('31 Maiden Lane, London WC2E', country='UK'),
'london_pieces_hyphenated': PlaceQuery(address='31-32 Maiden Lane', city='London',
country='UK'),
'london_one_line_hyphenated': PlaceQuery('31-32 Maiden Lane London WC2E', country='UK'),
# Oceanian Addresses:
'karori': PlaceQuery('102 Karori Road Karori Wellington', country='NZ'),
}
if BING_MAPS_API_KEY is not None:
bing_settings = dict(api_key=BING_MAPS_API_KEY)
self.g_bing = Geocoder(
[['omgeo.services.Bing', {
'settings': bing_settings
}]])
if MAPQUEST_API_KEY is not None:
mapquest_settings = dict(api_key=MAPQUEST_API_KEY)
self.g_mapquest = Geocoder(
[['omgeo.services.MapQuest', {
'settings': mapquest_settings
}]])
self.g_mapquest_ssl = Geocoder([[
'omgeo.services.MapQuestSSL', {
'settings': mapquest_settings
}
]])
if PELIAS_API_KEY is not None:
pelias_settings = dict(api_key=PELIAS_API_KEY)
self.g_pelias = Geocoder(
[['omgeo.services.Pelias', {
'settings': pelias_settings
}]])
if GOOGLE_API_KEY is not None:
self.g_google = Geocoder([[
'omgeo.services.Google', {
'settings': {
'api_key': GOOGLE_API_KEY
}
}
]])
self.g_google_wo_postprocess = Geocoder([[
'omgeo.services.Google', {
'settings': {
'api_key': GOOGLE_API_KEY
},
'postprocessors': []
}
]])
#: main geocoder used for tests, using default APIs
self.g = Geocoder()
# geocoders using individual services
self.g_esri_wgs = Geocoder([['omgeo.services.EsriWGS', {}]])
if ESRI_CLIENT_ID is not None and ESRI_CLIENT_SECRET is not None:
self.g_esri_wgs_auth = Geocoder([[
'omgeo.services.EsriWGS', {
'settings': {
'client_id': ESRI_CLIENT_ID,
'client_secret': ESRI_CLIENT_SECRET
}
}
]])
if MAPQUEST_API_KEY is not None: # MapQuest's open Nominatime API now also requires a key
self.g_nom = Geocoder([['omgeo.services.Nominatim', {}]])
self.g_census = Geocoder([['omgeo.services.USCensus', {}]])
ESRI_WGS_LOCATOR_MAP = {
'PointAddress': 'rooftop',
'StreetAddress': 'interpolation',
'PostalExt': 'postal_specific', # accept ZIP+4
'Postal': 'postal'
}
ESRI_WGS_POSTPROCESSORS_POSTAL_OK = [
AttrExclude(
['USA.Postal'], 'locator'
), # accept postal from everywhere but US (need PostalExt)
AttrFilter(
['PointAddress', 'StreetAddress', 'PostalExt', 'Postal'],
'locator_type'),
AttrSorter(
['PointAddress', 'StreetAddress', 'PostalExt', 'Postal'],
'locator_type'),
AttrRename('locator', ESRI_WGS_LOCATOR_MAP
), # after filter to avoid searching things we toss out
UseHighScoreIfAtLeast(99.8),
ScoreSorter(),
GroupBy('match_addr'),
GroupBy(('x', 'y')),
]
GEOCODERS_POSTAL_OK = [[
'omgeo.services.EsriWGS', {
'postprocessors': ESRI_WGS_POSTPROCESSORS_POSTAL_OK
}
]]
self.g_esri_wgs_postal_ok = Geocoder(GEOCODERS_POSTAL_OK)
#: geocoder with fast timeout
self.impatient_geocoder = Geocoder(
[['omgeo.services.EsriWGS', {
'settings': {
'timeout': 0.001
}
}]])
class EsriWGS(GeocodeService):
"""
Class to geocode using the `ESRI World Geocoding service
<https://developers.arcgis.com/features/geocoding/>`_.
This uses two endpoints -- one for single-line addresses,
and one for multi-part addresses.
An optional ``key`` parameter can be passed to the :class:`~omgeo.places.PlaceQuery`
which will be passed as a ``magicKey`` to the find endpoint if
using a single line address/text search. This allows omgeo
to be used with the `Esri suggest endpoint
<https://developers.arcgis.com/rest/geocode/api-reference/geocoding-suggest.htm>`_.
.. warning::
Based on tests using the magicKey parameter, it is
recommended that a viewbox not be used with in conjuction
with the magicKey. Additionally, address/search text passed
via the query may be ignored when using a magicKey.
An optional ``for_storage`` flag can be passed to the :class:`~omgeo.places.PlaceQuery` which
will cause ``findStorage=true`` to be passed to the find endpoint.
The Esri terms of service requires this if the returned point will be stored
in a database.
If you pass this flag, you `must` set the client_id and client_secret settings.
Settings used by the EsriWGS GeocodeService object may include:
* client_id -- The Client ID used to access Esri services.
* client_secret -- The Client Secret used to access Esri services.
"""
LOCATOR_MAP = {
'PointAddress': 'rooftop',
'StreetAddress': 'interpolation',
'PostalExt': 'postal_specific', # accept ZIP+4
'Postal': 'postal'
}
DEFAULT_PREPROCESSORS = [CancelIfPOBox()]
DEFAULT_POSTPROCESSORS = [
AttrFilter(
[
'PointAddress',
'StreetAddress',
# 'PostalExt',
# 'Postal'
],
'locator_type'),
# AttrExclude(['USA_Postal'], 'locator'), #accept postal from everywhere but US (need PostalExt)
AttrSorter(
[
'PointAddress',
'StreetAddress',
# 'PostalExt',
# 'Postal'
],
'locator_type'),
AttrRename(
'locator',
LOCATOR_MAP), # after filter to avoid searching things we toss out
UseHighScoreIfAtLeast(99.8),
ScoreSorter(),
GroupBy('match_addr'),
GroupBy(('x', 'y')),
]
_endpoint = 'https://geocode.arcgis.com/arcgis/rest/services/World/GeocodeServer'
def __init__(self, preprocessors=None, postprocessors=None, settings=None):
preprocessors = EsriWGS.DEFAULT_PREPROCESSORS if preprocessors is None else preprocessors
postprocessors = EsriWGS.DEFAULT_POSTPROCESSORS if postprocessors is None else postprocessors
settings = {} if settings is None else settings
if 'client_id' in settings and 'client_secret' in settings:
self._authenticated = True
self._client_id = settings['client_id']
self._client_secret = settings['client_secret']
self._token = None
elif 'client_id' not in settings and 'client_secret' not in settings:
self._authenticated = False
else:
raise Exception(
'Must specify both client_id and client_secret to use authentication'
)
GeocodeService.__init__(self, preprocessors, postprocessors, settings)
def _geocode(self, pq):
"""
:arg PlaceQuery pq: PlaceQuery object to use for geocoding
:returns: list of location Candidates
"""
#: List of desired output fields
#: See `ESRI docs <https://developers.arcgis.com/rest/geocode/api-reference/geocoding-geocode-addresses.htm>_` for details
outFields = (
'Loc_name',
# 'Shape',
'Score',
'Match_addr', # based on address standards for the country
# 'Address', # returned by default
# 'Country' # 3-digit ISO 3166-1 code for a country. Example: Canada = "CAN"
# 'Admin',
# 'DepAdmin',
# 'SubAdmin',
# 'Locality',
# 'Postal',
# 'PostalExt',
'Addr_type',
# 'Type',
# 'Rank',
'AddNum',
'StPreDir',
'StPreType',
'StName',
'StType',
'StDir',
# 'Side',
# 'AddNumFrom',
# 'AddNumTo',
# 'AddBldg',
'City',
'Subregion',
'Region',
'Postal',
'Country',
# 'Ymax',
# 'Ymin',
# 'Xmin',
# 'Xmax',
# 'X',
# 'Y',
'DisplayX',
'DisplayY',
# 'LangCode',
# 'Status',
)
outFields = ','.join(outFields)
query = dict(
f='json', # default HTML. Other options are JSON and KMZ.
outFields=outFields,
# outSR=WKID, defaults to 4326
maxLocations=20, # default 1; max is 20
)
# Postal-code only searches work in the single-line but not multipart geocoder
# Remember that with the default postprocessors, postcode-level results will be eliminated
if pq.query == pq.address == '' and pq.postal != '':
pq.query = pq.postal
if pq.query == '': # multipart
query = dict(
query,
Address=pq.
address, # commonly represents the house number and street name of a complete address
Neighborhood=pq.neighborhood,
City=pq.city,
Subregion=pq.subregion,
Region=pq.state,
Postal=pq.postal,
# PostalExt=
CountryCode=pq.
country, # full country name or ISO 3166-1 2- or 3-digit country code
)
else: # single-line
magic_key = pq.key if hasattr(pq, 'key') else ''
query = dict(
query,
singleLine=pq.
query, # This can be a street address, place name, postal code, or POI.
sourceCountry=pq.
country, # full country name or ISO 3166-1 2- or 3-digit country code
)
if magic_key:
query[
'magicKey'] = magic_key # This is a lookup key returned from the suggest endpoint.
if pq.bounded and pq.viewbox is not None:
query = dict(query, searchExtent=pq.viewbox.to_esri_wgs_json())
if self._authenticated:
if self._token is None or self._token_expiration < datetime.utcnow(
):
expiration = timedelta(hours=2)
self._token = self.get_token(expiration)
self._token_expiration = datetime.utcnow() + expiration
query['token'] = self._token
if getattr(pq, 'for_storage', False):
query['forStorage'] = 'true'
endpoint = self._endpoint + '/findAddressCandidates'
response_obj = self._get_json_obj(endpoint, query)
returned_candidates = [] # this will be the list returned
try:
locations = response_obj['candidates']
for location in locations:
c = Candidate()
attributes = location['attributes']
c.match_addr = attributes['Match_addr']
c.locator = attributes['Loc_name']
c.locator_type = attributes['Addr_type']
c.score = attributes['Score']
c.x = attributes[
'DisplayX'] # represents the actual location of the address.
c.y = attributes['DisplayY']
c.wkid = response_obj['spatialReference']['wkid']
c.geoservice = self.__class__.__name__
# Optional address component fields.
for in_key, out_key in [('City', 'match_city'),
('Subregion', 'match_subregion'),
('Region', 'match_region'),
('Postal', 'match_postal'),
('Country', 'match_country')]:
setattr(c, out_key, attributes.get(in_key, ''))
setattr(c, 'match_streetaddr',
self._street_addr_from_response(attributes))
returned_candidates.append(c)
except KeyError:
pass
return returned_candidates
def _street_addr_from_response(self, attributes):
"""Construct a street address (no city, region, etc.) from a geocoder response.
:param attributes: A dict of address attributes as returned by the Esri geocoder.
"""
# The exact ordering of the address component fields that should be
# used to reconstruct the full street address is not specified in the
# Esri documentation, but the examples imply that it is this.
ordered_fields = [
'AddNum', 'StPreDir', 'StPreType', 'StName', 'StType', 'StDir'
]
result = []
for field in ordered_fields:
result.append(attributes.get(field, ''))
if any(result):
return ' '.join([s for s in result
if s]) # Filter out empty strings.
else:
return ''
def get_token(self, expires=None):
"""
:param expires: The time until the returned token expires.
Must be an instance of :class:`datetime.timedelta`.
If not specified, the token will expire in 2 hours.
:returns: A token suitable for use with the Esri geocoding API
"""
endpoint = 'https://www.arcgis.com/sharing/rest/oauth2/token/'
query = {
'client_id': self._client_id,
'client_secret': self._client_secret,
'grant_type': 'client_credentials'
}
if expires is not None:
if not isinstance(expires, timedelta):
raise Exception(
'If expires is provided it must be a timedelta instance')
query['expiration'] = int(expires.total_seconds() / 60)
response_obj = self._get_json_obj(endpoint, query, is_post=True)
return response_obj['access_token']