[places] Place config with dropout probabilities for admin boundaries by country, exceptions by OSM relation id

scripts/geodata/places/config.py

@@ -0,0 +1,91 @@
+import copy
+import os
+import random
+import six
+import yaml
+
+from collections import Mapping
+
+from geodata.address_expansions.address_dictionaries import address_phrase_dictionaries
+from geodata.configs.utils import nested_get, DoesNotExist, recursive_merge
+from geodata.math.sampling import cdf, check_probability_distribution
+
+from geodata.encoding import safe_encode
+
+this_dir = os.path.realpath(os.path.dirname(__file__))
+
+PLACE_CONFIG_FILE = os.path.join(this_dir, os.pardir, os.pardir, os.pardir,
+                                 'resources', 'places', 'countries', 'global.yaml')
+
+
+class PlaceConfig(object):
+    def __init__(self, config_file=PLACE_CONFIG_FILE):
+        self.cache = {}
+        place_config = yaml.load(open(config_file))
+
+        self.global_config = place_config['global']
+        self.country_configs = {}
+
+        countries = place_config.pop('countries', {})
+
+        for k, v in six.iteritems(countries):
+            country_config = countries[k]
+            global_config_copy = copy.deepcopy(self.global_config)
+            self.country_configs[k] = recursive_merge(global_config_copy, country_config)
+
+    def get_property(self, key, country=None, default=None):
+        if isinstance(key, six.string_types):
+            key = key.split('.')
+
+        config = self.global_config
+
+        if country:
+            country_config = self.country_configs.get(country, {})
+            if country_config:
+                config = country_config
+
+        return nested_get(config, key, default=default)
+
+    def include_component(self, component, containing_ids, country=None):
+        containing = self.get_property(('components', component, 'containing'), country=country, default=None)
+
+        if containing is not None:
+            for c in containing:
+                if (c['type'], safe_encode(c['id'])) in containing_ids:
+                    return random.random() < c['probability']
+
+        probability = self.get_property(('components', component, 'probability'), country=country, default=0.0)
+
+        return random.random() < probability
+
+    def drop_components(self, components, boundaries=(), country=None):
+        containing_ids = set()
+        for boundary in boundaries:
+            object_type = boundary.get('type')
+            object_id = safe_encode(boundary.get('id', ''))
+            containing_ids.add((object_type, object_id))
+
+        return {c: v for c, v in six.iteritems(components) if self.include_component(c, containing_ids, country=country)}
+
+        all_ids = set()
+
+        for component in components:
+            object_type = component.get('type')
+            object_id = safe_encode(component.get('id', ''))
+            all_ids.add((object_type, object_id))
+
+        for object_type, object_id in list(all_ids):
+            if (object_type, object_id) in self.omit_conditions:
+                conditions = self.omit_conditions[(object_type, object_id)]
+                if all_ids & conditions:
+                    all_ids.remove((object_type, object_id))
+
+            if (object_type, object_id) in self.include_probabilities and random.random() > self.include_probabilities[(object_type, object_id)]:
+                all_ids.remove((object_type, object_id))
+
+        if len(all_ids) == len(components):
+            return components
+
+        return [c for c in components if (c.get('type'), safe_encode(c.get('id', ''))) in all_ids]
+
+place_config = PlaceConfig()