How to use match_request method in localstack
Best Python code snippet using localstack_python
prospective_search_stub.py
Source:prospective_search_stub.py 
1#!/usr/bin/env python2#3# Copyright 2007 Google Inc.4#5# Licensed under the Apache License, Version 2.0 (the "License");6# you may not use this file except in compliance with the License.7# You may obtain a copy of the License at8#9# http://www.apache.org/licenses/LICENSE-2.010#11# Unless required by applicable law or agreed to in writing, software12# distributed under the License is distributed on an "AS IS" BASIS,13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.14# See the License for the specific language governing permissions and15# limitations under the License.16#17"""In-memory persistent prospective_search API stub for dev_appserver."""18import base6419import bisect20import cPickle as pickle21import itertools22import logging23import os24import re25import time26import urllib27from google.appengine.api import apiproxy_stub28from google.appengine.api.prospective_search import error_pb29from google.appengine.api.prospective_search import prospective_search_pb30from google.appengine.api.search import query_parser31from google.appengine.api.search import QueryParser32from google.appengine.api.taskqueue import taskqueue_service_pb33from google.appengine.runtime import apiproxy_errors34def ValidateSubscriptionId(sub_id):35 if not sub_id:36 RaiseBadRequest('Invalid subscription id.')37def ValidateTopic(topic):38 if not topic:39 RaiseBadRequest('Invalid topic.')40def ValidateQuery(query):41 parser_return = query_parser.Parse(unicode(query, 'utf-8'))42 if parser_return.tree and parser_return.tree.getType() is QueryParser.EMPTY:43 raise query_parser.QueryException('Empty query.')44def RaiseBadRequest(message):45 raise apiproxy_errors.ApplicationError(error_pb.Error.BAD_REQUEST, message)46class ProspectiveSearchStub(apiproxy_stub.APIProxyStub):47 """Python only Prospective Search service stub."""48 def __init__(self, prospective_search_path, taskqueue_stub,49 service_name='matcher', openfile=open):50 """Initializer.51 Args:52 prospective_search_path: path for file that persists subscriptions.53 taskqueue_stub: taskqueue service stub for returning results.54 service_name: Service name expected for all calls.55 openfile: function to open the pickled subscription state.56 """57 super(ProspectiveSearchStub, self).__init__(service_name)58 self.prospective_search_path = prospective_search_path59 self.taskqueue_stub = taskqueue_stub60 self.topics = {}61 self.topics_schema = {}62 if os.path.isfile(self.prospective_search_path):63 stream = openfile(self.prospective_search_path, 'rb')64 stream.seek(0, os.SEEK_END)65 if stream.tell() != 0:66 stream.seek(0)67 self.topics, self.topics_schema = pickle.load(stream)68 def _Write(self, openfile=open):69 """Persist subscriptions."""70 persisted = openfile(self.prospective_search_path, 'wb')71 pickle.dump((self.topics, self.topics_schema), persisted)72 persisted.close()73 def _Get_Schema(self, schema_entries):74 """Converts a schema list to a schema dictionary.75 Args:76 schema_entries: list of SchemaEntry entries.77 Returns:78 Dictionary mapping field names to SchemaEntry types.79 """80 schema = {}81 for entry in schema_entries:82 schema[entry.name()] = entry.type()83 return schema84 def _Dynamic_Subscribe(self, request, response):85 """Subscribe a query.86 Args:87 request: SubscribeRequest88 response: SubscribeResponse (not used)89 """90 ValidateSubscriptionId(request.sub_id())91 ValidateTopic(request.topic())92 ValidateQuery(request.vanilla_query())93 schema = self._Get_Schema(request.schema_entry_list())94 self.topics_schema[request.topic()] = schema95 if request.lease_duration_sec() == 0:96 expires = time.time() + 0xffffffff97 else:98 expires = time.time() + request.lease_duration_sec()99 topic_subs = self.topics.setdefault(request.topic(), {})100 topic_subs[request.sub_id()] = (request.vanilla_query(), expires)101 self._Write()102 def _Dynamic_Unsubscribe(self, request, response):103 """Unsubscribe a query.104 Args:105 request: UnsubscribeRequest106 response: UnsubscribeResponse (not used)107 """108 ValidateSubscriptionId(request.sub_id())109 ValidateTopic(request.topic())110 try:111 del self.topics[request.topic()][request.sub_id()]112 except KeyError:113 pass114 self._Write()115 def _ExpireSubscriptions(self):116 """Remove expired subscriptions."""117 now = time.time()118 empty_topics = []119 for topic, topic_subs in self.topics.iteritems():120 expired_sub_ids = []121 for sub_id, entry in topic_subs.iteritems():122 _, expires = entry123 if expires < now:124 expired_sub_ids.append(sub_id)125 for sub_id in expired_sub_ids:126 del topic_subs[sub_id]127 if len(topic_subs) == 0:128 empty_topics.append(topic)129 for topic in empty_topics:130 del self.topics[topic]131 def _Dynamic_ListSubscriptions(self, request, response):132 """List subscriptions.133 Args:134 request: ListSubscriptionsRequest135 response: ListSubscriptionsResponse136 """137 ValidateTopic(request.topic())138 self._ExpireSubscriptions()139 topic_subs = self.topics.get(request.topic(), {})140 sub_ids = topic_subs.keys()141 sub_ids.sort()142 start = bisect.bisect_left(sub_ids, request.subscription_id_start())143 sub_ids = sub_ids[start:start + request.max_results()]144 for sub_id in sub_ids:145 vanilla_query, expires = topic_subs[sub_id]146 if request.has_expires_before() and expires > request.expires_before():147 continue148 record = response.add_subscription()149 record.set_id(sub_id)150 record.set_vanilla_query(vanilla_query)151 record.set_expiration_time_sec(expires)152 record.set_state(prospective_search_pb.SubscriptionRecord.OK)153 def _Dynamic_ListTopics(self, request, response):154 """List topics.155 Args:156 request: ListTopicsRequest157 response: ListTopicsResponse158 """159 topics = self.topics.keys()160 topics.sort()161 if request.has_topic_start():162 start = bisect.bisect_left(topics, request.topic_start())163 else:164 start = 0165 iter_topics = topics[start:start + request.max_results()]166 for topic in iter_topics:167 response.topic_list().append(topic)168 def _DeliverMatches(self, subscriptions, match_request):169 """Deliver list of subscriptions as batches using taskqueue.170 Args:171 subscriptions: list of subscription ids172 match_request: MatchRequest173 """174 parameters = {'topic': match_request.topic()}175 if match_request.has_result_python_document_class():176 python_document_class = match_request.result_python_document_class()177 parameters['python_document_class'] = python_document_class178 parameters['document'] = base64.urlsafe_b64encode(179 match_request.document().Encode())180 if match_request.has_result_key():181 parameters['key'] = match_request.result_key()182 taskqueue_request = taskqueue_service_pb.TaskQueueBulkAddRequest()183 batch_size = match_request.result_batch_size()184 for i in xrange(0, len(subscriptions), batch_size):185 add_request = taskqueue_request.add_add_request()186 add_request.set_queue_name(match_request.result_task_queue())187 add_request.set_task_name('')188 add_request.set_eta_usec(0)189 add_request.set_url(match_request.result_relative_url())190 add_request.set_description('prospective_search::matches')191 header = add_request.add_header()192 header.set_key('content-type')193 header.set_value('application/x-www-form-urlencoded; charset=utf-8')194 parameters['results_count'] = len(subscriptions)195 parameters['results_offset'] = i196 parameters['id'] = subscriptions[i:i+batch_size]197 add_request.set_body(urllib.urlencode(parameters, doseq=True))198 taskqueue_response = taskqueue_service_pb.TaskQueueBulkAddResponse()199 self.taskqueue_stub._Dynamic_BulkAdd(taskqueue_request, taskqueue_response)200 def _Dynamic_Match(self, request, response):201 """Match a document.202 Args:203 request: MatchRequest204 response: MatchResponse (not used)205 """206 self._ExpireSubscriptions()207 doc = {}208 properties = itertools.chain(request.document().property_list(),209 request.document().raw_property_list())210 for prop in properties:211 prop_name = unicode(prop.name(), 'utf-8')212 doc.setdefault(prop_name, [])213 if prop.value().has_int64value():214 value = prop.value().int64value()215 if (value < 2**32) and (value >= -2**32):216 doc[prop_name].append(prop.value().int64value())217 elif prop.value().has_stringvalue():218 unicode_value = unicode(prop.value().stringvalue(), 'utf-8')219 doc[prop_name].append(unicode_value)220 elif prop.value().has_doublevalue():221 doc[prop_name].append(prop.value().doublevalue())222 elif prop.value().has_booleanvalue():223 doc[prop_name].append(prop.value().booleanvalue())224 matches = []225 topic_subs = self.topics.get(request.topic(), {})226 sub_ids = topic_subs.keys()227 for sub_id in sub_ids:228 vanilla_query, _ = topic_subs[sub_id]229 if self._FindMatches(vanilla_query, doc):230 matches.append(sub_id)231 if matches:232 self._DeliverMatches(matches, request)233 def _FindMatches(self, query, doc):234 """Entry point for matching document against a query."""235 self._Debug('_FindMatches: query: %r, doc: %s' % (query, doc), 0)236 query_tree = self._Simplify(query_parser.Parse(unicode(query, 'utf-8')))237 match = self._WalkQueryTree(query_tree, doc)238 self._Debug('_FindMatches: result: %s' % match, 0)239 return match240 def ExtractGlobalEq(self, node):241 if node.getType() == QueryParser.EQ and len(node.children) >= 2:242 if node.children[0].getType() == QueryParser.GLOBAL:243 return node.children[1]244 return node245 def _WalkQueryTree(self, query_node, doc, query_field=None, level=0):246 """Recursive match of doc from query tree at the given node."""247 query_type = query_node.getType()248 query_text = query_node.getText()249 self._Debug('_WalkQueryTree: query type: %r, field: %r, text: %r'250 % (query_type, query_field, query_text), level=level)251 if query_type is QueryParser.CONJUNCTION:252 for child in query_node.children:253 if not self._WalkQueryTree(254 self.ExtractGlobalEq(child), doc, query_field, level=level + 1):255 return False256 return True257 elif query_type is QueryParser.DISJUNCTION:258 for child in query_node.children:259 if self._WalkQueryTree(260 self.ExtractGlobalEq(child), doc, query_field, level=level + 1):261 return True262 if query_type is QueryParser.NEGATION:263 self._Debug(('No such field so no match: field: %r, children: %r'264 % (query_type, query_node.children[0])),265 level)266 child = query_node.children[0]267 return not self._WalkQueryTree(268 self.ExtractGlobalEq(child), doc, query_field, level=level + 1)269 elif query_type is QueryParser.HAS:270 if query_node.children[0].getType() is not QueryParser.GLOBAL:271 query_field = query_node.children[0].getText()272 if query_field not in doc:273 self._Debug(('No such field so no match: field: %r' % query_field),274 level)275 return False276 return self._WalkQueryTree(query_node.children[1], doc, query_field,277 level=level + 1)278 elif query_type is QueryParser.VALUE or query_type is QueryParser.TEXT:279 if query_parser.IsPhrase(query_node):280 query_text = query_parser.GetQueryNodeTextUnicode(query_node)281 if query_field is not None:282 return self._MatchField(doc, query_field, query_text, level=level)283 for field_name in doc:284 if self._MatchField(doc, field_name, query_text, level=level):285 return True286 elif query_type in query_parser.COMPARISON_TYPES:287 query_field = query_node.children[0].getText()288 query_text = query_node.children[1].getText()289 if query_field is not None:290 if query_field not in doc:291 self._Debug(('No such field so no match: field: %r' % query_field),292 level)293 return False294 return self._MatchField(doc, query_field, query_text, query_type,295 level=level)296 for field_name in doc:297 if self._MatchField(doc, field_name, query_text, query_type,298 level=level):299 return True300 self._Debug('Fallthrough at %s returning false, query_node.children: %s'301 % (query_text, [n.getText() for n in query_node.children]),302 level)303 return False304 def _MatchField(self, doc, field_name, query_val, op=QueryParser.HAS,305 level=0):306 """Returns true iff 'doc[field_name] op query_val' evaluates to true."""307 field_vals = doc[field_name]308 if type(field_vals) is not list:309 field_vals = list(field_vals)310 self._Debug('_MatchField: doc[%s]: %r %s %r'311 % (field_name, field_vals, op, query_val), level)312 if (op is QueryParser.HAS313 or (op is QueryParser.EQ314 and type(field_vals[0]) is unicode)):315 if query_val.startswith('"') and query_val.endswith('"'):316 query_val = query_val[1:-1]317 query_val = re.sub(r'\s+', r'\s+', query_val)318 re_query = re.compile(u'(^\\s*|\\s+)%s(\\s+|\\s*$)'319 % query_val, re.IGNORECASE)320 for val in field_vals:321 value_text = ('%s' % val)322 if re_query.search(value_text):323 return True324 elif op is QueryParser.EQ:325 for val in field_vals:326 if (type(val) is int) or (type(val) is float):327 if val == float(query_val):328 return True329 elif type(val) is bool:330 query_bool = re.match('(?i)true', query_val) is not None331 if val == bool(query_bool):332 return True333 else:334 query_num = float(query_val)335 if op is QueryParser.GT:336 for val in field_vals:337 if val > query_num: return True338 elif op is QueryParser.GE:339 for val in field_vals:340 if val >= query_num: return True341 elif op is QueryParser.LESSTHAN:342 for val in field_vals:343 if val < query_num: return True344 elif op is QueryParser.LE:345 for val in field_vals:346 if val <= query_num: return True347 return False348 def _Simplify(self, parser_return):349 """Simplifies the output of the parser."""350 if parser_return.tree:351 return self._SimplifyNode(query_parser.SimplifyNode(parser_return.tree))352 return parser_return353 def _SimplifyNode(self, node):354 """Simplifies the node removing singleton conjunctions and others."""355 if not node.getType():356 return self._SimplifyNode(node.children[0])357 elif (node.getType() in query_parser.COMPARISON_TYPES358 and node.getChildCount() is 2359 and node.children[0].getType() is QueryParser.GLOBAL):360 return self._SimplifyNode(node.children[1])361 elif node.getType() is QueryParser.SEQUENCE:362 return self._SimplifyNode(query_parser.SequenceToConjunction(node))363 elif (node.getType() is QueryParser.VALUE364 and node.getChildCount() is 2 and365 (node.children[0].getType() is QueryParser.TEXT or366 node.children[0].getType() is QueryParser.STRING or367 node.children[0].getType() is QueryParser.NUMBER)):368 return self._SimplifyNode(node.children[1])369 elif (node.getType() is QueryParser.EQ and370 (node.children[0].getType() is QueryParser.CONJUNCTION371 or node.children[0].getType() is QueryParser.DISJUNCTION)):372 return self._SimplifyNode(node.children[0])373 for i, child in enumerate(node.children):374 node.setChild(i, self._SimplifyNode(child))375 return node376 def _Debug(self, msg, level):377 """Helper method to print out indented messages."""...
uber.py
Source:uber.py
...239 continue240 d.status = Driver.Status.MATCHING241 d.match_request = match_request242 p.status = Passenger.Status.MATCHING243 self._log_match_request(match_request)244 def _generate_match_requests(self) -> List[MatchRequest]:245 return self.matcher.match(self.drivers, self.passengers, self.map)246 def _check_graph(self, graph):247 # only allow nx.DiGraph248 if not type(graph) is nx.DiGraph:249 raise TypeError("graph should be of type nx.DiGraph")250 # only allow strongly connected graphs251 if not nx.is_strongly_connected(graph):252 raise ValueError("graph is not strongly connected")253 254 # only allow constant weights255 weight = None256 for u,v,d in graph.edges(data=True):257 try:258 edge_weight = d["weight"]259 except:260 raise ValueError("edges of the graphs should have the weight attribute")261 if weight is None:262 weight = edge_weight263 elif edge_weight != weight:264 raise ValueError("edges of the graph should have constant weight")265 return weight266 def _log(self):267 if not self.is_logging:268 return269 270 for message in self.messages:271 logging.info(message)272 273 self.messages = []274 def _log_match(self, driver: int, response: int):275 if not(response == 0 or response == 1):276 return277 if response == 0:278 message = f"Driver {driver} rejected match request."279 elif response == 1:280 message = f"Driver {driver} accepted match request."281 self.messages.append(message)282 def _log_move(self, driver: int, prev_position: int, new_position: int, arrival: bool = False, pickup: bool = False, passenger: int = None):283 284 self.messages.append(f"Driver {driver} moved from {prev_position} to {new_position}.")285 if arrival:286 self.messages.append(f"Driver {driver} arrived at passenger {passenger}'s destination.")287 288 if pickup:289 self.messages.append(f"Driver {driver} picked up the passenger {passenger}.")290 def _log_match_request(self, match_request: MatchRequest):291 self.messages.append(f"Match Request for driver {match_request.driver}, passenger {match_request.passenger} with price {match_request.price}.")292 def _log_passenger_generation(self, passenger: int, position: int, destination: int):...
serializers.py
Source:serializers.py
1from rest_framework.serializers import ModelSerializer, SerializerMethodField, CurrentUserDefault, CharField, IntegerField2from rest_framework.validators import UniqueTogetherValidator3from django.db.models import Q, Count4from .models import *5import time 6from datetime import datetime7class MeetingTypeSerializer(ModelSerializer):8 class Meta:9 model = MeetingType10 fields = ("id", "name", "created_at")11class PlaceTypeSerializer(ModelSerializer):12 class Meta:13 model = PlaceType14 fields = ("id", "name", "created_at")15class PlaceSerializer(ModelSerializer):16 class Meta:17 model = Place18 fields = ("id", "name", "place_type", "is_premium", "description", "link", "created_at")19class RatingSerializer(ModelSerializer):20 class Meta:21 model = Rating22 fields = ("id", "description", "created_at")23class MatchedMeetingSerializer(ModelSerializer):24 openby_nickname = CharField(source='openby.nickname', read_only=True)25 openby_uid = CharField(source='openby.uid', read_only=True)26 openby_age = CharField(source='openby.age', read_only=True)27 openby_belong = CharField(source='openby.belong', read_only=True)28 openby_department = CharField(source='openby.department', read_only=True)29 class Meta:30 model = Meeting31 fields= ("id", "openby_uid", "openby_nickname", "openby_age", "openby_belong", "openby_department", "rating")32class MeetingSerializer(ModelSerializer):33 place_type_name = CharField(source='place_type.name', read_only=True)34 openby_nickname = CharField(source='openby.nickname', read_only=True)35 openby_age = CharField(source='openby.age', read_only=True)36 openby_belong = CharField(source='openby.belong', read_only=True)37 openby_department = CharField(source='openby.department', read_only=True)38 openby_profile = CharField(source='openby.image', read_only=True)39 received_request = SerializerMethodField('get_received_request_prefetch_related')40 sent_request = SerializerMethodField('get_sent_request_prefetch_related')41 matched_meeting = MatchedMeetingSerializer()42 def get_received_request_prefetch_related(self, meeting):43 match_request_queryset = meeting.match_receiver.all().order_by('created_at').filter(Q(is_declined=False))44 45 data = [{'id': match_request.id,'is_selected': match_request.is_selected, 'sender': match_request.sender.id, 'receiver': match_request.receiver.id, 'manager_uid': match_request.manager.uid, 'manager_name': match_request.manager.nickname, 'manager_profile': match_request.manager.image, 'accepted_at': int(((match_request.accepted_at - datetime(1970, 1, 1)).total_seconds() - 3600 * 9)* 1000) if match_request.accepted_at != None else None46} for match_request in match_request_queryset]47 return_data = { 'count': match_request_queryset.count(), 'data': data}48 return return_data49 def get_sent_request_prefetch_related(self, meeting):50 match_request_queryset = meeting.match_sender.all().order_by('created_at').filter(Q(is_declined=False))51 data = [{'id': match_request.id,'is_selected': match_request.is_selected, 'sender': match_request.sender.id, 'receiver': match_request.receiver.id, 'manager_uid': match_request.manager.uid, 'manager_name': match_request.manager.nickname, 'manager_profile': match_request.manager.image, 'accepted_at': int(((match_request.accepted_at - datetime(1970, 1, 1)).total_seconds() - 3600 * 9)* 1000) if match_request.accepted_at != None else None} for match_request in match_request_queryset]52 return_data = { 'count': match_request_queryset.count(), 'data': data}53 return return_data 54 class Meta:55 model = Meeting56 fields = ("id", "meeting_type", "openby", "openby_nickname", "openby_age", "openby_belong", "openby_department", "openby_profile", "date", "place_type", "place_type_name", "place", "appeal", "rating", "is_matched", "created_at", "received_request", "sent_request", "matched_meeting")5758class MeetingCreateSerializer(ModelSerializer):59 class Meta:60 model = Meeting61 fields = ("id", "meeting_type", "openby", "date", "place_type", "appeal", "rating", "is_matched", "created_at")62 validators = [63 UniqueTogetherValidator(64 queryset=Meeting.objects.all(), 65 fields=['openby', 'date']66 )67 ]68class MatchRequestSerializer(ModelSerializer):69 manager_uid = IntegerField(source='manager.uid', read_only=True)70 class Meta:71 model = MatchRequest72 fields = ("id", "sender", "receiver", "manager", "manager_uid", "accepted_at", "created_at")73class MatchRequestSenderSerializer(ModelSerializer):74 sender = MeetingSerializer()75 #receiver = MeetingSerializer()76 class Meta:77 model = MatchRequest78 fields = ("id", "sender", "created_at")7980class MatchRequestReceiverSerializer(ModelSerializer):81 #sender = MeetingSerializer()82 receiver = MeetingSerializer()83 class Meta:84 model = MatchRequest85 fields = ("id", "receiver", "created_at")8687class ChattingRoomListSerializer(ModelSerializer):88 manager_info = SerializerMethodField('get_manager_info')89 meeting_info = SerializerMethodField('get_meeting_info')90 receiver_info = SerializerMethodField('get_receiver_info')91 sender_info = SerializerMethodField('get_sender_info')92 def get_manager_info(self, match):93 return {'id': match.manager.id, 'uid': match.manager.uid, 'nickname': match.manager.nickname}94 def get_meeting_info(self, match):95 return {'type': match.sender.meeting_type.name, 'date': match.sender.date, 'accepted_at': match.accepted_at}96 def get_receiver_info(self, match):97 return {'meeting_id': match.receiver.id, 'id': match.receiver.openby.id, 'uid': match.receiver.openby.uid, 'nickname': match.receiver.openby.nickname, 'age': match.receiver.openby.age, 'gender': 'ë¨' if match.receiver.openby.gender == 1 else 'ì¬', 'belong': match.receiver.openby.belong, 'department': match.receiver.openby.department }98 def get_sender_info(self, match):99 return {'meeting_id': match.sender.id, 'id': match.sender.openby.id, 'uid': match.sender.openby.uid, 'nickname': match.sender.openby.nickname, 'age': match.sender.openby.age, 'gender': 'ë¨' if match.sender.openby.gender == 1 else 'ì¬', 'belong': match.sender.openby.belong, 'department': match.sender.openby.department}100 class Meta:101 model = MatchRequest
...
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