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# Simulate MEC devices using Pandas database
import pandas as pd
from datetime import datetime, time
class mec_database:
""" Private properties """
__path__ = "/Users/yanng/Documents/workspace_titan/STF569_Mec/simu/data/" # To be updated according to the local settings
__subscribers__ = None
__registered_list__ = None
__zones__ = None
__ue_information_list__ = None
__access_point_list__ = None
__location_info__ = None
__cells__ = None
__associated__ = None
def __init__(self):
""" Default ctor: Open Pandas database. """
self.__zones__ = pd.DataFrame(pd.read_csv(self.__path__ + 'zones.csv', index_col = 'zoneId'))
self.__subscribers__ = pd.DataFrame(pd.read_csv(self.__path__ + 'subscribers.csv', index_col = 'address'))
self.__ue_information_list__ = pd.DataFrame(pd.read_csv(self.__path__ + 'ue_information_list.csv', index_col = ['appInst', 'ueTag']))
self.__access_point_list__ = pd.DataFrame(pd.read_csv(self.__path__ + 'access_point_list.csv', index_col = 'accessPointId'))
self.__location_info__ = pd.DataFrame(pd.read_csv(self.__path__ + 'location_info.csv', index_col = 'accessPointId'))
self.__cells__ = pd.DataFrame(pd.read_csv(self.__path__ + 'cells.csv', encoding = 'utf-8', index_col = 'cellId'))
self.__associated__ = pd.DataFrame(pd.read_csv(self.__path__ + 'associated.csv', encoding = 'utf-8', index_col = 'cellId'))
self.__subscriptions__ = pd.DataFrame(pd.read_csv(self.__path__ + 'subscriptions.csv', encoding = 'utf-8', index_col = 'subscription_id'))
#self.dump()
# End of __init__
def dump(self):
""" Dump database contents. For debug purpose only. """
print("Subscribers: ", self.__subscribers__.head())
print("Zones: ", self.__zones__.head())
print("UEinformation", self.__ue_information_list__.head())
print("AccessPoint: ", self.__access_point_list__.head())
print("LocationInfo: ", self.__location_info__.head())
print("Cells: ", self.__cells__.head())
print("Associated: ", self.__associated__.head())
print("subscriptions: ", self.__subscribions__.head())
# End of dump
def __to_accessPoint__(self, p_access_point, p_location):
"""
Build an AccessPointLocation Json message.
Keyword arguments:
-- p_access_point: Access point identifier
-- p_location : Access point geographical location
"""
print(">>> __to_accessPoint__: ", p_access_point)
print("__to_accessPoint__: location= ", p_location['latitude'][0])
i = 0.0
resp = "{\"accessPointId\": \"" + p_access_point[0] + \
"\",\"locationInfo\": {\"latitude\": " + str(p_location['latitude'][0]) + ",\"longitude\": " + str(p_location['longitude'][0]) + ",\"altitude\": " + str(p_location['altitude'][0]) + ",\"accuracy\": " + str(p_location['accuracy'][0]) + "}," \
"\"connectionType\": \"" + p_access_point[2] + "\"," \
"\"operationStatus\": \"" + p_access_point[3] + "\"," \
"\"numberOfUsers\": " + str(p_access_point[4]) + "," \
"\"interestRealm\": \"" + p_access_point[5] + "\"," \
"\"resourceURL\": \"" + p_access_point[6] + "\"" \
"}"
print("__to_accessPoint__: ", resp)
return resp
# End of __to_accessPoint__
def __to_zone__(self, p_zone):
"""
Build a Zones Json message.
Keyword arguments:
-- p_zone: Zone description
"""
print(">>> __to_zone__: ", p_zone)
resp = "{\t\"zoneId\": \"" + p_zone[0] + "\",\t\"numberOfAccessPoints\": \"" + str(p_zone[1]) + "\",\t\"numberOfUnserviceableAccessPoints\": \"" + str(p_zone[2]) + "\",\t\"numberOfUsers\": \"" + str(p_zone[3]) + "\",\t\"resourceURL\": \"" + p_zone[4] + "\"}"
print("__to_zone__: ", resp)
return resp
# End of __to_zone__
def __to_userInfo__(self, p_subscriber, p_location = None, p_contextLocationInfo = None):
""" Build a UserInfo Json message. """
print(">>> __to_userInfo__: ", p_subscriber)
resp = "{\t\"address\": \"" + p_subscriber[0] + "\",\t\"accessPointId\": \"" + p_subscriber[2] + "\",\t\"zoneId\": \"" + p_subscriber[3] + "\",\t\"resourceURL\": \"" + p_subscriber[4] + "\"}"
print("__to_userInfo__: ", resp)
return resp
# End of __to_userInfo__
def __to_ueIdentityTagInfo__(self, p_ue_identity_tag, p_ue):
""" Build a ueIdentityTagInfo Json message. """
print(">>> __to_ueIdentityTagInfo__: ", p_ue_identity_tag, ", ", p_ue)
resp = "{\t\"ueIdentityTagInfo\": {\t\"ueIdentityTags\": [{\t\"ueIdentityTag\": \"" + p_ue_identity_tag + "\",\t\"state\": \"" + p_ue[1] + "\"}]}}"
print("__to_ueIdentityTagInfo__: ", resp)
return resp
# End of __to_ueIdentityTagInfo__
def __to_subscriptions__(self, p_subscription):
""" Build the userTrackingSubscription response """
print(">>> __to_subscriptions__: ", p_subscription)
resp = "\t{\"userTrackingSubscription\": {\t\"clientCorrelator\": \"" + p_subscription[1] + "\",\t\"callbackReference\": {\"notifyURL\": \"" + p_subscription[3] + "\"},\t\"address\": \"" + p_subscription[2] + "\",\t\"userEventCriteria\" : ["
resp += "\"" + p_subscription[4][0] + "\""
i = 1
while i < len(p_subscription[4]):
resp += ",\"" + p_subscription[4][i] + "\""
i += 1
# End of 'while' statement
resp += "],\t\"resourceURL\":\"" + p_subscription[5] + "\"\t}}"
print("__to_subscriptions__: ", resp)
return resp
# End of __to_subscriptions__
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def getSubscriberList(self, p_uri):
""" Build a SubscriberList Json message. """
print(">>> getSubscriberList")
resp = None
try:
resp = "{\"userList\": {\t\"user\": [\t"
for r in self.__subscribers__.itertuples():
t = tuple(r)
resp += self.__to_userInfo__(t) + ","
# En of 'for' statement
resp = resp[: len(resp) - 1]
resp += "\t],\"resourceURL\": \"http://example.com" + p_uri + "\"}}"
print("getSubscriberList: ", resp)
except KeyError:
print("getSubscriberList: No subscriber list")
return resp
# End of getSubscriberList
def getZoneList(self, p_uri):
print(">>> getZoneList")
resp = None
try:
resp = "{\"zoneList\": {\t\"zone\": [\t"
for r in self.__zones__.itertuples():
t = tuple(r)
resp += self.__to_zone__(t) + ","
# En of 'for' statement
resp = resp[: len(resp) - 1]
resp += "\t],\"resourceURL\": \"http://example.com" + p_uri + "\"}}"
print("getZoneList: ", resp)
except KeyError:
print("getZoneList: No zones list")
return resp
# End of getZoneList
def getAccessPointList(self, p_zone_id, p_uri):
print(">>> getAccessPointList")
resp = None
try:
r = self.__access_point_list__.loc[self.__access_point_list__['zoneId'] == p_zone_id]
print("getAccessPointList: r= ", r)
resp = "{\"accessPointList\": {\t\"zoneId\": \"" + p_zone_id + "\",\t\"accessPoint\": [\t"
for i in r.itertuples():
t = tuple(i)
location = self.__location_info__.loc[[t[0]]]
resp += self.__to_accessPoint__(t, location) + ","
# En of 'for' statement
resp = resp[: len(resp) - 1]
resp += "\t],\"resourceURL\": \"http://example.com" + p_uri + "\"}}"
print("getAccessPointList: ", resp)
except KeyError:
print("getAccessPointList: No access point list")
return resp
# End of method getAccessPointList
def getSubscriptionLinkList(self, p_uri):
return "{\"SubscriptionLinkList\": {\"_links\": {\"self\": \"http://example.com" + p_uri + "\"},\"subscription\": [{\"href\": \"http://meAppClient.example.com/rni/v1/notifications/cell_change/77777\",\"subscriptionType\": \"CELL_CHANGE\"},{\"href\": \"http://meAppClient.example.com/rni/v1/notifications/MeasTa/77777\",\"subscriptionType\": \"MEAS_TIMING_ADVANCE\"}]}}"
# End of method getSubscriptionLinkList
def getSubscriberFromAddress(self, p_ue_address):
print(">>> getSubscriberFromAddress: ", p_ue_address)
result = None
try:
r = tuple(self.__subscribers__.loc[[p_ue_address]].itertuples(index=True, name=''))[0]
print("getSubscriberFromAddress: Find subscriber with address ", p_ue_address, ": ", r)
result = "{\"userInfo\": " + self.__to_userInfo__(r) + "}"
except KeyError:
print("getSubscriberFromAddress: No subscriber with address ", p_ue_address)
return result
# End of method getSubscriberFromAddress
def getSubscriberFromZoneId(self, p_zone_id, p_uri):
print(">>> getSubscriberFromZoneId: ", p_zone_id)
resp = None
try:
r = self.__subscribers__.loc[self.__subscribers__['zoneId'] == p_zone_id]
resp = "{\"userList\": {\t\"user\": [\t"
for i in r.itertuples():
t = tuple(i)
resp += self.__to_userInfo__(t) + ","
# En of 'for' statement
resp = resp[: len(resp) - 1]
resp += "\t],\"resourceURL\": \"http://example.com" + p_uri + "\"}}"
print("getSubscriberFromZoneId: ", resp)
except KeyError:
print("getSubscriberFromZoneId: No subscriber in zone ", p_zone_id)
return resp
# End of method getSubscriberFromAddress
def getUEidentityTagInfo(self, p_app_inst, p_ue_identity_tag):
print(">>> getUEidentityTagInfo: ", p_app_inst, ", ", p_ue_identity_tag)
resp = None
try:
r = tuple(self.__ue_information_list__.loc[p_app_inst, p_ue_identity_tag])
print("getUEidentityTagInfo: Find zoneId for appInst: ", p_app_inst, ", r= ", r)
resp = self.__to_ueIdentityTagInfo__(p_ue_identity_tag, r)
print("getUEidentityTagInfo: ", resp)
except KeyError:
print("getUEidentityTagInfo: No UE for appInst ", p_app_inst)
return resp
# End of method getUEidentityTagInfo
def registerUEidentity(self, p_app_inst, p_json_msg):
print(">>> registerUEidentity", p_json_msg)
if p_json_msg["state"] != "REGISTERED" and p_json_msg["state"] != "UNREGISTERED":
resp = None
try:
# Check the record exists
r = tuple(self.__ue_information_list__.loc[p_app_inst, p_json_msg["ueIdentityTag"]])
print("registerUEidentity: Find zoneId for appInst: ", p_app_inst, ", r= ", r)
if self.__ue_information_list__.loc[p_app_inst, p_json_msg["ueIdentityTag"]]['state'] == 'INVALID_STATE':
return '412 Precondition Failed'
self.__ue_information_list__.loc[p_app_inst, p_json_msg["ueIdentityTag"]]['state'] = p_json_msg["state"]
l = (p_json_msg["ueIdentityTag"], p_json_msg["state"])
resp = self.__to_ueIdentityTagInfo__(p_json_msg["ueIdentityTag"], l)
except KeyError:
print("registerUEidentity: No appInst/UE ", p_app_inst, "/", p_ue_identity_tag)
return resp
# End of method registerUEidentity
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def registerSubscription(self, p_json_msg, p_uri):
print(">>> registerSubscription: ", p_json_msg, "/", p_uri)
resp = None
subscription_id = "subscription" + p_json_msg["clientCorrelator"]
try:
# Check the record does not exist
self.__subscriptions__.loc[self.__subscriptions__['subscription_id'] == subscription_id]
print("registerSubscription: There is a subscription for ", subscription_id)
except KeyError:
#print("registerSubscription: Add new row in subscription")
resource_url = "http://example.com" + p_uri + "/" + subscription_id
row = pd.Series({ 'subscription_id': subscription_id, 'corr_id': p_json_msg["clientCorrelator"], 'address': p_json_msg["address"], 'callback': p_json_msg["callbackReference"]["notifyURL"], 'ue_event_criteria': p_json_msg["userEventCriteria"], 'resourceURL': resource_url })
#print("registerSubscription: row: ", row)
self.__subscriptions__ = self.__subscriptions__.append(row, ignore_index=True).reindex()
#print("registerSubscription: ", self.__subscriptions__.head())
r = tuple(self.__subscriptions__.loc[self.__subscriptions__['subscription_id'] == subscription_id].to_records())
#print("registerSubscription: New added row: ", r[0])
resp = self.__to_subscriptions__(r[0])
return resp
# End of registerSubscription
def unregisterSubscription(self, p_subscription_id):
print(">>> unregisterSubscription: ", p_subscription_id)
resp = None
try:
# Check the record exists
r = self.__subscriptions__.loc[self.__subscriptions__['subscription_id'] == p_subscription_id]
t = tuple(r.to_records())
print("unregisterSubscription: Find row: ", t)
resp = self.__to_subscriptions__(t[0])
# Remove it
self.__subscriptions__.drop(r.index)
except KeyError:
print("unregisterSubscription: No subscription for ", p_subscription_id)
return resp
# End of unregisterSubscription
def getBwAllocationAppInst(self, p_app_inst, p_ue_identity_tag):
print(">>> getBwAllocationAppInst: ", p_app_inst, ", ", p_ue_identity_tag)
resp = None
resp = "{\"bwInfo\": {\"timeStamp\": {\"seconds\": 0,\"nanoSeconds\": 0},\"appInsId\": \"string\",\"requestType\": \"APPLICATION_SPECIFIC_BW_ALLOCATION\",\"sessionFilter\": [{\"sourceIp\": \"string\",\"sourcePort\": [\"string\"],\"dstAddress\": \"string\",\"dstPort\": [\"string\"],\"protocol\": \"string\"}],\"fixedBWPriority\": \"not defined in the present document\",\"fixedAllocation\": \"string\",\"allocationDirection\": \"00 = Downlink (towards the UE)\"}}"
print("getBwAllocationAppInst: ", resp)
return resp
# End of method getBwAllocationAppInst
# End of class mec_database