def update_specific_rule(self, tenantId, serverId, ruleId, rule):
"""Updates a specific rule
:param str tenantId: The id of the tenant
:param str serverId: The id of the server
:param str ruleId: The id of the rule
:param str rule: The rule description in json format
"""
rule_db = SpecificRule.objects.get(specificRule_Id__exact=ruleId,
tenantId__exact=tenantId, entity__exact=serverId)
try:
condition = self.getContition(rule)
action = self.getAction(rule)
name = self.getName(rule)
except Exception as err:
raise ValueError(str(err) + " is missing")
self.checkRule(name, condition, action)
rule_db.action = action
rule_db.name = name
rule_db.condition = condition
modifiedAction = self.pimp_rule_action(action, name, serverId)
modifiedCondition = self.pimp_rule_condition(condition, name, serverId)
rule_db.clips_action = modifiedAction
rule_db.clips_condition = modifiedCondition
rule_db.save()
ruleResult = RuleModel()
ruleResult.ruleId = str(ruleId)
ruleResult.name = name
ruleResult.condition = condition
ruleResult.action = action
logger.info("RuleId %s was updated" % str(ruleId))
return ruleResult
def updateWindowSize(self, tenantId, newSize):
"""Updates windowsize of a specified tenant."""
self.checkSize(newSize)
t = self.tenantInfo.objects.get(tenantId__exact=tenantId)
t.windowsize = newSize
t.save()
message = tenantId + " " + str(newSize)
logger.info("%s", message)
self.publish_message(message)
logger.info("%s windowsize updated to %d", tenantId, newSize)
return t
def create_specific_rule(self, tenantId, serverId, rule):
"""Creates a new specific rule for a server
:param str tenantId: The id of the tenant
:param str serverId: The id of the server
:param str rule: The rule description in json format
"""
try:
entity = Entity.objects.get(serverId__exact=serverId)
except Entity.DoesNotExist as err:
entity = Entity(serverId=serverId, tenantId=tenantId)
entity.save()
try:
condition = self.getContition(rule)
action = self.getAction(rule)
name = self.getName(rule)
except Exception as err:
raise ValueError(str(err) + " is missing")
self.checkRule(name, condition, action)
#Its necesary modify action to get subscriptionId
modifiedAction = self.pimp_rule_action(action, name, serverId)
modifiedCondition = self.pimp_rule_condition(condition, name, serverId)
createdAt = datetime.datetime.now(tz=timezone.get_default_timezone())
ruleId = uuid.uuid1()
rule = SpecificRule(specificRule_Id=ruleId,
tenantId=tenantId,
name=name,
condition=condition,
action=action,
clips_condition=modifiedCondition,
clips_action=modifiedAction,
createdAt=createdAt)
"""try:
rule = SpecificRule.objects.get(serverId__exact=serverId, )
raise ValueError("rule name already exists")
except Entity.DoesNotExist as err:
entity = Entity(serverId=serverId, tenantId=tenantId)"""
rule.save()
entity.specificrules.add(rule)
rule.save()
ruleResult = RuleModel()
ruleResult.ruleId = str(ruleId)
logger.info("RuleId %s was created for server %s" %
(str(ruleId), serverId))
return ruleResult
def delete_specific_rule(self, tenantId, serverId, ruleId):
"""Deletes a specific rule.
:param str tenantId: The id of the tenant
:param str serverId: The id of the server
:param str ruleId: The id of the rule
"""
r_query = SpecificRule.objects.get(specificRule_Id__exact=ruleId,
tenantId__exact=tenantId, entity__exact=serverId)
r_query.delete()
#Deleting subscriptions to that rule
subscriptions = Subscription.objects.filter(ruleId__exact=ruleId)
subscriptions.delete()
logger.info("RuleId %s from server %s was deleted" % (ruleId, serverId))
return True
def contextBrokerUnSubscription(self, cbSubscriptionId, serverId):
"""Unsubscribes server from Context Broker """
headers = {"Content-Type": "application/json", "Accept": "application/json"}
data = json.dumps('{"subscriptionId": "%s"}' % cbSubscriptionId)
r = self.client.post(settings.CONTEXT_BROKER_URL + "/unsubscribeContext", data, headers=headers)
if r.status_code == 200:
logger.info(
"Server %s was unsubscribed from Context Broker.--- HTTP Response: %d" % (serverId, r.status_code)
)
else:
logger.error(
"ERROR, Server %s was not unsubscribed from Context Broker.--- HTTP Response: %d"
% (serverId, r.status_code)
)
raise SystemError("ERROR, Server %s was not unsubscribed.--- HTTP Response: %d" % (serverId, r.status_code))
def unsubscribe_to_rule(self, serverId, subscriptionId):
"""Unsuscribe a server from a rule.
:param str tenantId: The id of the tenant
:param str serverId: The id of the server
:param str subscriptionId: The id of the subscription
"""
r_query = Subscription.objects.get(subscription_Id__exact=subscriptionId, serverId__exact=serverId)
if Subscription.objects.filter(serverId__exact=serverId).count() == 1:
self.orionClient.contextBrokerUnSubscription(r_query.cbSubscriptionId, r_query.serverId)
r_query.delete()
else:
r_query.delete()
logger.info("Server %s was unsubscribed to this subscription: %s"
% (serverId, subscriptionId))
return True
def subscribe_to_rule(self, tenantId, serverId, subscription):
"""Creates a server subscription to a rule.
:param str tenantId: The id of the tenant
:param str serverId: The id of the server
:param str subscription: The subscription description in json format
"""
context_broker_subscription = False
try:
entity = Entity.objects.get(serverId__exact=serverId)
except Entity.DoesNotExist as err:
entity = Entity(serverId=serverId, tenantId=tenantId)
entity.save()
ruleId = json.loads(subscription)['ruleId']
SpecificRule.objects.get(specificRule_Id__exact=ruleId,
entity__exact=serverId)
url = json.loads(subscription)['url']
#Verify that there is no more subscriptions to the rule for that server
it = entity.subscription.iterator()
for sub in it:
if sub.serverId == serverId:
context_broker_subscription = sub.cbSubscriptionId
if sub.ruleId == ruleId:
raise Conflict("Subscription already exists")
self.verify_url(url)
if not context_broker_subscription:
cbSubscriptionId = self.orionClient.contextBrokerSubscription(
tenantId, serverId)
else:
cbSubscriptionId = context_broker_subscription
subscription_Id = uuid.uuid1()
subscr = Subscription(subscription_Id=subscription_Id,
ruleId=ruleId,
url=url,
serverId=serverId,
cbSubscriptionId=cbSubscriptionId)
subscr.save()
entity.subscription.add(subscr)
entity.save()
logger.info(
"Server %s was subscribed to rule %s: cbSubscriptionId is %s and internal subscription %s"
% (serverId, ruleId, cbSubscriptionId, str(subscription_Id)))
return subscription_Id
def delete_specific_rule(self, tenantId, serverId, ruleId):
"""Deletes a specific rule.
:param str tenantId: The id of the tenant
:param str serverId: The id of the server
:param str ruleId: The id of the rule
"""
r_query = SpecificRule.objects.get(specificRule_Id__exact=ruleId,
tenantId__exact=tenantId,
entity__exact=serverId)
r_query.delete()
#Deleting subscriptions to that rule
subscriptions = Subscription.objects.filter(ruleId__exact=ruleId)
subscriptions.delete()
logger.info("RuleId %s from server %s was deleted" %
(ruleId, serverId))
return True
def unsubscribe_to_rule(self, serverId, subscriptionId):
"""Unsuscribe a server from a rule.
:param str tenantId: The id of the tenant
:param str serverId: The id of the server
:param str subscriptionId: The id of the subscription
"""
r_query = Subscription.objects.get(
subscription_Id__exact=subscriptionId, serverId__exact=serverId)
if Subscription.objects.filter(serverId__exact=serverId).count() == 1:
self.orionClient.contextBrokerUnSubscription(
r_query.cbSubscriptionId, r_query.serverId)
r_query.delete()
else:
r_query.delete()
logger.info("Server %s was unsubscribed to this subscription: %s" %
(serverId, subscriptionId))
return True
def create_specific_rule(self, tenantId, serverId, rule):
"""Creates a new specific rule for a server
:param str tenantId: The id of the tenant
:param str serverId: The id of the server
:param str rule: The rule description in json format
"""
try:
entity = Entity.objects.get(serverId__exact=serverId)
except Entity.DoesNotExist as err:
entity = Entity(serverId=serverId, tenantId=tenantId)
entity.save()
try:
condition = self.getContition(rule)
action = self.getAction(rule)
name = self.getName(rule)
except Exception as err:
raise ValueError(str(err) + " is missing")
self.checkRule(name, condition, action)
#Its necesary modify action to get subscriptionId
modifiedAction = self.pimp_rule_action(action, name, serverId)
modifiedCondition = self.pimp_rule_condition(condition, name, serverId)
createdAt = datetime.datetime.now(tz=timezone.get_default_timezone())
ruleId = uuid.uuid1()
rule = SpecificRule(specificRule_Id=ruleId,
tenantId=tenantId, name=name, condition=condition, action=action,
clips_condition=modifiedCondition, clips_action=modifiedAction, createdAt=createdAt)
"""try:
rule = SpecificRule.objects.get(serverId__exact=serverId, )
raise ValueError("rule name already exists")
except Entity.DoesNotExist as err:
entity = Entity(serverId=serverId, tenantId=tenantId)"""
rule.save()
entity.specificrules.add(rule)
rule.save()
ruleResult = RuleModel()
ruleResult.ruleId = str(ruleId)
logger.info("RuleId %s was created for server %s" % (str(ruleId), serverId))
return ruleResult
def subscribe_to_rule(self, tenantId, serverId, subscription):
"""Creates a server subscription to a rule.
:param str tenantId: The id of the tenant
:param str serverId: The id of the server
:param str subscription: The subscription description in json format
"""
context_broker_subscription = False
try:
entity = Entity.objects.get(serverId__exact=serverId)
except Entity.DoesNotExist as err:
entity = Entity(serverId=serverId, tenantId=tenantId)
entity.save()
ruleId = json.loads(subscription)['ruleId']
SpecificRule.objects.get(specificRule_Id__exact=ruleId, entity__exact=serverId)
url = json.loads(subscription)['url']
#Verify that there is no more subscriptions to the rule for that server
it = entity.subscription.iterator()
for sub in it:
if sub.serverId == serverId:
context_broker_subscription = sub.cbSubscriptionId
if sub.ruleId == ruleId:
raise Conflict("Subscription already exists")
self.verify_url(url)
if not context_broker_subscription:
cbSubscriptionId = self.orionClient.contextBrokerSubscription(tenantId, serverId)
else:
cbSubscriptionId = context_broker_subscription
subscription_Id = uuid.uuid1()
subscr = Subscription(subscription_Id=subscription_Id, ruleId=ruleId, url=url, serverId=serverId,
cbSubscriptionId=cbSubscriptionId)
subscr.save()
entity.subscription.add(subscr)
entity.save()
logger.info("Server %s was subscribed to rule %s: cbSubscriptionId is %s and internal subscription %s"
% (serverId, ruleId, cbSubscriptionId, str(subscription_Id)))
return subscription_Id
def contextBrokerSubscription(self, tenantId, serverId):
"""Subscribes server to Context Broker to get information about cpu and memory monitoring"""
headers = {CONTENT_HEADER: JSON_TYPE, ACCEPT_HEADER: JSON_TYPE}
data = '{"entities": [' \
'{"type": "Server",'\
'"isPattern": "false",' \
'"id": "' + serverId + '"' \
'}],' \
'"attributes": [' \
'"cpu",' \
'"mem"],' \
'"reference": "' + settings.NOTIFICATION_URL + '/' + \
tenantId + 'servers/' + serverId + '",' \
'"duration": "P1M",' \
'"notifyConditions": [' \
'{"type": "' + settings.NOTIFICATION_TYPE + '",' \
'"condValues": ["' + settings.NOTIFICATION_TIME + '"]}]}'
r = self.client.post(settings.CONTEXT_BROKER_URL + "/subscribeContext",
data,
headers=headers)
if r.status_code == 200:
decoded = json.loads(r.text.decode())
logger.info(
"Server %s was subscribed to Context Broker.--- HTTP Response: %d"
% (serverId, r.status_code))
else:
logger.error(
"ERROR, Server %s was not subscribed to Context Broker.--- HTTP Response: %d"
% (serverId, r.status_code))
raise SystemError(
"ERROR, Server %s was not subscribed to Context Broker.--- HTTP Response: %d"
% (serverId, r.status_code))
return decoded["subscribeResponse"]["subscriptionId"]
def contextBrokerSubscription(self, tenantId, serverId):
"""Subscribes server to Context Broker to get information about cpu and memory monitoring"""
headers = {CONTENT_HEADER: JSON_TYPE, ACCEPT_HEADER: JSON_TYPE}
data = (
'{"entities": ['
'{"type": "Server",'
'"isPattern": "false",'
'"id": "' + serverId + '"'
"}],"
'"attributes": ['
'"cpu",'
'"mem"],'
'"reference": "' + settings.NOTIFICATION_URL + "/" + tenantId + "servers/" + serverId + '",'
'"duration": "P1M",'
'"notifyConditions": ['
'{"type": "' + settings.NOTIFICATION_TYPE + '",'
'"condValues": ["' + settings.NOTIFICATION_TIME + '"]}]}'
)
r = self.client.post(settings.CONTEXT_BROKER_URL + "/subscribeContext", data, headers=headers)
if r.status_code == 200:
decoded = json.loads(r.text.decode())
logger.info("Server %s was subscribed to Context Broker.--- HTTP Response: %d" % (serverId, r.status_code))
else:
logger.error(
"ERROR, Server %s was not subscribed to Context Broker.--- HTTP Response: %d"
% (serverId, r.status_code)
)
raise SystemError(
"ERROR, Server %s was not subscribed to Context Broker.--- HTTP Response: %d"
% (serverId, r.status_code)
)
return decoded["subscribeResponse"]["subscriptionId"]
def contextBrokerUnSubscription(self, cbSubscriptionId, serverId):
"""Unsubscribes server from Context Broker """
headers = {
'Content-Type': 'application/json',
'Accept': 'application/json'
}
data = json.dumps("{\"subscriptionId\": \"%s\"}" % cbSubscriptionId)
r = self.client.post(settings.CONTEXT_BROKER_URL +
"/unsubscribeContext",
data,
headers=headers)
if r.status_code == 200:
logger.info(
"Server %s was unsubscribed from Context Broker.--- HTTP Response: %d"
% (serverId, r.status_code))
else:
logger.error(
"ERROR, Server %s was not unsubscribed from Context Broker.--- HTTP Response: %d"
% (serverId, r.status_code))
raise SystemError(
"ERROR, Server %s was not unsubscribed.--- HTTP Response: %d" %
(serverId, r.status_code))
def update_specific_rule(self, tenantId, serverId, ruleId, rule):
"""Updates a specific rule
:param str tenantId: The id of the tenant
:param str serverId: The id of the server
:param str ruleId: The id of the rule
:param str rule: The rule description in json format
"""
rule_db = SpecificRule.objects.get(specificRule_Id__exact=ruleId,
tenantId__exact=tenantId,
entity__exact=serverId)
try:
condition = self.getContition(rule)
action = self.getAction(rule)
name = self.getName(rule)
except Exception as err:
raise ValueError(str(err) + " is missing")
self.checkRule(name, condition, action)
rule_db.action = action
rule_db.name = name
rule_db.condition = condition
modifiedAction = self.pimp_rule_action(action, name, serverId)
modifiedCondition = self.pimp_rule_condition(condition, name, serverId)
rule_db.clips_action = modifiedAction
rule_db.clips_condition = modifiedCondition
rule_db.save()
ruleResult = RuleModel()
ruleResult.ruleId = str(ruleId)
ruleResult.name = name
ruleResult.condition = condition
ruleResult.action = action
logger.info("RuleId %s was updated" % str(ruleId))
return ruleResult
# This application object is used by any WSGI server configured to use this
# file. This includes Django's development server, if the WSGI_APPLICATION
# setting points here.
from fiware_cloto.environments import environment_controller
from django.core.wsgi import get_wsgi_application
application = get_wsgi_application()
import datetime
from django.utils import timezone
from fiware_cloto.cloto.models import ServerInfo
from django.conf import settings
from fiware_cloto.cloto.utils.log import logger
runningfrom = datetime.datetime.now(tz=timezone.get_default_timezone())
# Creating initial data
s = ServerInfo(id=1, owner=settings.OWNER, version=settings.VERSION,
runningfrom=runningfrom, doc=settings.API_INFO_URL)
try:
s.save()
except Exception as ex:
logger.error("Error saving initial server data into DB while server was starting: %s", ex)
# Starting environments Controller
controller = environment_controller.environment_controller()
if not controller.is_started():
controller.start_manager()
logger.info("SERVER STARTED")
from django.core.wsgi import get_wsgi_application
application = get_wsgi_application()
import datetime
from django.utils import timezone
from fiware_cloto.cloto.models import ServerInfo
from django.conf import settings
from fiware_cloto.cloto.utils.log import logger
runningfrom = datetime.datetime.now(tz=timezone.get_default_timezone())
# Creating initial data
s = ServerInfo(id=1,
owner=settings.OWNER,
version=settings.VERSION,
runningfrom=runningfrom,
doc=settings.API_INFO_URL)
try:
s.save()
except Exception as ex:
logger.error(
"Error saving initial server data into DB while server was starting: %s",
ex)
# Starting environments Controller
controller = environment_controller.environment_controller()
if not controller.is_started():
controller.start_manager()
logger.info("SERVER STARTED")