def start_receiving(self,
on_message_received_callback): # pragma: no cover
self.loop = asyncio.get_event_loop()
try:
host = EventProcessorHost(EventProcessor,
self.eph_client,
self.storage_manager,
ep_params=[on_message_received_callback],
eph_options=self.eh_options,
loop=self.loop)
self.tasks = asyncio.gather(
host.open_async(), self.wait_and_close(host, self.timeout))
self.loop.run_until_complete(self.tasks)
except KeyboardInterrupt:
self.logger.info(
"Handling keyboard interrupt or SIGINT gracefully.")
# Canceling pending tasks and stopping the loop
for task in asyncio.Task.all_tasks():
task.cancel()
self.loop.run_forever()
self.tasks.exception()
raise
finally:
if self.loop.is_running():
self.loop.stop()
def get():
"""
Main method of this module
"""
try:
loop = asyncio.get_event_loop()
# Storage Account Credentials
storage_account_name = os.environ.get('AZURE_STORAGE_ACCOUNT')
storage_key = os.environ.get('AZURE_STORAGE_ACCESS_KEY')
storage_container_lease = os.environ.get('EVENT_HUB_STORAGE_CONTAINER')
# namespace = os.environ.get('EVENT_HUB_NAMESPACE')
# eventhub = os.environ.get('EVENT_HUB_NAME')
# user = os.environ.get('EVENT_HUB_SAS_POLICY')
# key = os.environ.get('EVENT_HUB_SAS_KEY')
# consumer_group = os.environ.get('EVENT_HUB_CONSUMER_GROUP')
namespace = '' # os.environ.get('address')
eventhub = os.environ.get('address')
user = os.environ.get('user')
key = os.environ.get('key')
consumer_group = os.environ.get('consumergroup')
# Eventhub config and storage manager
eh_config = EventHubConfig(namespace,
eventhub,
user,
key,
consumer_group=consumer_group)
pprint(eh_config)
eh_options = EPHOptions()
eh_options.release_pump_on_timeout = True
# eh_options.
eh_options.debug_trace = False
storage_manager = AzureStorageCheckpointLeaseManager(\
storage_account_name, storage_key, storage_container_lease)
# Event loop and host
host = EventProcessorHost(EventProcessor,
eh_config,
storage_manager,
ep_params=[],
eph_options=eh_options,
loop=loop)
tasks = asyncio.gather(host.open_async(), wait_and_close(host))
loop.run_until_complete(tasks)
except KeyboardInterrupt:
# Canceling pending tasks and stopping the loop
for task in asyncio.Task.all_tasks():
task.cancel()
loop.run_forever()
tasks.exception()
finally:
loop.stop()
def run(self):
try:
print('Loading EventHub Config...')
ehConfig = self.loadEventHubConfig()
print('Loading Storage Manager...')
storageManager = self.loadStorageManager()
print('Clear Storage Old Data...')
self.clearStorageOldData()
print('Loading Event Host Options...')
ehOptions = self.loadEventHostOptions()
except Exception as ex:
print('Exception on loading config. Error:' + str(ex))
return
try:
# Event loop and host
print('Start Event Processor Host Loop...')
loop = asyncio.get_event_loop()
host = EventProcessorHost(
EventProcessor,
ehConfig,
storageManager,
ep_params=[self.webAppURL,self.rtMessageRoomId],
eph_options=ehOptions,
loop=loop)
# Below line was must for China Azure
storageManager.storage_client = BlockBlobService(account_name=self.storageAccountName,
account_key=self.storageAccountKey,
endpoint_suffix=self.storageEndpointSuffix)
tasks = asyncio.gather(
host.open_async(),
noneStop(host))
loop.run_until_complete(tasks)
except Exception as ex:
# Canceling pending tasks and stopping the loop
print('Exception, leave loop. Error:' + str(ex))
for task in asyncio.Task.all_tasks():
task.cancel()
loop.run_forever()
tasks.exception()
finally:
loop.stop()
def start_receiving(self, on_message_received_callback): # pragma: no cover
loop = asyncio.get_event_loop()
try:
host = EventProcessorHost(
EventProcessor,
self.eph_client,
self.storage_manager,
ep_params=[on_message_received_callback],
eph_options=self.eh_options,
loop=loop)
tasks = asyncio.gather(host.open_async(),
self.wait_and_close(host, self.timeout))
loop.run_until_complete(tasks)
finally:
loop.stop()
def eph():
try:
storage_clm = AzureStorageCheckpointLeaseManager(
os.environ['AZURE_STORAGE_ACCOUNT'],
os.environ['AZURE_STORAGE_ACCESS_KEY'], "lease")
NAMESPACE = os.environ.get('EVENT_HUB_NAMESPACE')
EVENTHUB = os.environ.get('EVENT_HUB_NAME')
USER = os.environ.get('EVENT_HUB_SAS_POLICY')
KEY = os.environ.get('EVENT_HUB_SAS_KEY')
eh_config = EventHubConfig(NAMESPACE,
EVENTHUB,
USER,
KEY,
consumer_group="$default")
host = EventProcessorHost(MockEventProcessor, eh_config, storage_clm)
except KeyError:
pytest.skip("Live EventHub configuration not found.")
return host
def consume(self):
try:
loop = asyncio.get_event_loop()
# Eventhub config and storage manager
eh_config = EventHubConfig(self.namespace,
self.evenhub,
self.user,
self.key,
consumer_group=self.consumer_group)
eh_options = EPHOptions()
eh_options.release_pump_on_timeout = False
eh_options.debug_trace = False
if self._is_storage_checkpoint_enabled():
storage_manager = AzureStorageCheckpointLeaseManager(
self.storage_account, self.storage_key,
self.storage_container)
else:
storage_manager = DummyStorageCheckpointLeaseManager()
# Event loop and host
host = EventProcessorHost(EventProcessor,
eh_config,
storage_manager,
ep_params=[self.on_receive_callback],
eph_options=eh_options,
loop=loop)
tasks = asyncio.gather(host.open_async(), wait_and_close(host))
loop.run_until_complete(tasks)
except KeyboardInterrupt:
# Canceling pending tasks and stopping the loop
for task in asyncio.Task.all_tasks():
task.cancel()
loop.run_forever()
tasks.exception()
finally:
loop.stop()
def start_receiving(self, on_message_received_callback):
"""
Receive messages from an EventHubStreamingClient.
:param on_message_received_callback: Callback function.
"""
loop = asyncio.get_event_loop()
try:
host = EventProcessorHost(EventProcessor,
self.eph_client,
self.storage_manager,
ep_params=[on_message_received_callback],
eph_options=self.eh_options,
loop=loop)
tasks = asyncio.gather(host.open_async(),
self.wait_and_close(host, self.timeout))
loop.run_until_complete(tasks)
finally:
loop.stop()
def run(self):
try:
print('Loading EventHub Config...')
ehConfig = self.loadEventHubConfig()
print('Loading Storage Manager...')
storageManager = self.loadStorageManager()
print('Clear Storage Old Data...')
self.clearStorageOldData()
print('Loading Event Host Options...')
ehOptions = self.loadEventHostOptions()
except Exception as ex:
print('Exception on loading config. Error:' + str(ex))
return
try:
# Event loop and host
print('Start Event Processor Host Loop...')
loop = asyncio.get_event_loop()
host = EventProcessorHost(EventProcessor,
ehConfig,
storageManager,
ep_params=["param1", "param2"],
eph_options=ehOptions,
loop=loop)
tasks = asyncio.gather(host.open_async(), noneStop(host))
loop.run_until_complete(tasks)
except Exception as ex:
# Canceling pending tasks and stopping the loop
print('Exception, leave loop. Error:' + str(ex))
for task in asyncio.Task.all_tasks():
task.cancel()
loop.run_forever()
tasks.exception()
finally:
loop.stop()
USER = os.environ.get('EVENT_HUB_SAS_POLICY')
KEY = os.environ.get('EVENT_HUB_SAS_KEY')
# Eventhub config and storage manager
eh_config = EventHubConfig(NAMESPACE, EVENTHUB, USER, KEY, consumer_group="$default")
eh_options = EPHOptions()
eh_options.release_pump_on_timeout = True
eh_options.debug_trace = False
storage_manager = AzureStorageCheckpointLeaseManager(
STORAGE_ACCOUNT_NAME, STORAGE_KEY, LEASE_CONTAINER_NAME)
# Event loop and host
host = EventProcessorHost(
EventProcessor,
eh_config,
storage_manager,
ep_params=["param1","param2"],
eph_options=eh_options,
loop=loop)
tasks = asyncio.gather(
host.open_async(),
wait_and_close(host))
loop.run_until_complete(tasks)
except KeyboardInterrupt:
# Canceling pending tasks and stopping the loop
for task in asyncio.Task.all_tasks():
task.cancel()
loop.run_forever()
tasks.exception()
# Set algunas opciones
ehOptions.release_pump_on_timeout = True
ehOptions.debug_trace = False
"""
Configuración del Storage
Párametros:
storage_account_name = Nombre del storage
storage_account_key = Llave del storage
lease_container_name = Nombre del contenedor
"""
stgManager = AzureStorageCheckpointLeaseManager(stgName, stgKey, blobName)
# Host del Event Hub Processor
ehHost = EventProcessorHost(EventProcessor,
ehConfig,
stgManager,
ep_params=["param1", "param2"],
eph_options=ehOptions,
loop=ephLoop)
# Prepara los procedimientos a ejecutar en loop
ephTasks = asyncio.gather(ehHost.open_async(), wait_and_close(ehHost))
# Corre el loop
ephLoop.run_until_complete(ephTasks)
# En caso de ocurrri excepciones de teclado
except KeyboardInterrupt:
# Cancela las tareas y el loop
for task in asyncio.Task.all_tasks():
task.cancel()
ephLoop.run_forever()
def test_long_running_eph():
parser = argparse.ArgumentParser()
parser.add_argument("--duration",
help="Duration in seconds of the test",
type=int,
default=30)
parser.add_argument("--storage-account",
help="Storage account name",
default=os.environ.get('AZURE_STORAGE_ACCOUNT'))
parser.add_argument("--storage-key",
help="Storage account access key",
default=os.environ.get('AZURE_STORAGE_ACCESS_KEY'))
parser.add_argument("--container",
help="Lease container name",
default="leases")
parser.add_argument("--eventhub",
help="Name of EventHub",
default=os.environ.get('EVENT_HUB_NAME'))
parser.add_argument("--namespace",
help="Namespace of EventHub",
default=os.environ.get('EVENT_HUB_NAMESPACE'))
parser.add_argument("--suffix",
help="Namespace of EventHub",
default="servicebus.windows.net")
parser.add_argument(
"--sas-policy",
help="Name of the shared access policy to authenticate with",
default=os.environ.get('EVENT_HUB_SAS_POLICY'))
parser.add_argument("--sas-key",
help="Shared access key",
default=os.environ.get('EVENT_HUB_SAS_KEY'))
loop = asyncio.get_event_loop()
args, _ = parser.parse_known_args()
if not args.namespace or not args.eventhub:
try:
import pytest
pytest.skip("Must specify '--namespace' and '--eventhub'")
except ImportError:
raise ValueError("Must specify '--namespace' and '--eventhub'")
# Eventhub config and storage manager
eh_config = EventHubConfig(args.namespace,
args.eventhub,
args.sas_policy,
args.sas_key,
consumer_group="$default",
namespace_suffix=args.suffix)
eh_options = EPHOptions()
eh_options.release_pump_on_timeout = True
eh_options.debug_trace = False
eh_options.receive_timeout = 120
storage_manager = AzureStorageCheckpointLeaseManager(
storage_account_name=args.storage_account,
storage_account_key=args.storage_key,
lease_renew_interval=30,
lease_container_name=args.container,
lease_duration=60)
# Event loop and host
host = EventProcessorHost(EventProcessor,
eh_config,
storage_manager,
ep_params=["param1", "param2"],
eph_options=eh_options,
loop=loop)
tasks = asyncio.gather(host.open_async(),
wait_and_close(host, args.duration),
return_exceptions=True)
results = loop.run_until_complete(tasks)
assert not any(results)
async def test_long_running_context_eph(live_eventhub):
parser = argparse.ArgumentParser()
parser.add_argument("--duration",
help="Duration in seconds of the test",
type=int,
default=30)
parser.add_argument("--storage-account",
help="Storage account name",
default=os.environ.get('AZURE_STORAGE_ACCOUNT'))
parser.add_argument("--storage-key",
help="Storage account access key",
default=os.environ.get('AZURE_STORAGE_ACCESS_KEY'))
parser.add_argument("--container",
help="Lease container name",
default="contextleases")
parser.add_argument("--eventhub",
help="Name of EventHub",
default=live_eventhub['event_hub'])
parser.add_argument("--namespace",
help="Namespace of EventHub",
default=live_eventhub['namespace'])
parser.add_argument("--suffix",
help="Namespace of EventHub",
default="servicebus.windows.net")
parser.add_argument(
"--sas-policy",
help="Name of the shared access policy to authenticate with",
default=live_eventhub['key_name'])
parser.add_argument("--sas-key",
help="Shared access key",
default=live_eventhub['access_key'])
loop = asyncio.get_event_loop()
args, _ = parser.parse_known_args()
if not args.namespace or not args.eventhub:
try:
import pytest
pytest.skip("Must specify '--namespace' and '--eventhub'")
except ImportError:
raise ValueError("Must specify '--namespace' and '--eventhub'")
# Queue up some events in the Eventhub
conn_str = "Endpoint=sb://{}/;SharedAccessKeyName={};SharedAccessKey={};EntityPath={}".format(
live_eventhub['hostname'], live_eventhub['key_name'],
live_eventhub['access_key'], live_eventhub['event_hub'])
send_client = EventHubClient.from_connection_string(conn_str)
pumps = []
for pid in ["0", "1"]:
sender = send_client.create_producer(partition_id=pid, send_timeout=0)
pumps.append(pump(pid, sender, 15))
results = await asyncio.gather(*pumps, return_exceptions=True)
assert not any(results)
# Eventhub config and storage manager
eh_config = EventHubConfig(args.namespace,
args.eventhub,
args.sas_policy,
args.sas_key,
consumer_group="$default",
namespace_suffix=args.suffix)
eh_options = EPHOptions()
eh_options.release_pump_on_timeout = True
eh_options.debug_trace = False
eh_options.receive_timeout = 120
storage_manager = AzureStorageCheckpointLeaseManager(
storage_account_name=args.storage_account,
storage_account_key=args.storage_key,
lease_renew_interval=30,
lease_container_name=args.container,
lease_duration=60)
# Event loop and host
host = EventProcessorHost(EventProcessor,
eh_config,
storage_manager,
ep_params=["param1", "param2"],
eph_options=eh_options,
loop=loop)
tasks = asyncio.gather(host.open_async(),
wait_and_close(host, args.duration),
return_exceptions=True)
results = await tasks
assert not any(results)
Párametros:
lease_container_name = Nombre del contenedor
connection_string = Link de conexión al storage account
"""
STG_Manager = AzureStorageCheckpointLeaseManager(
lease_container_name=Credentials.STG_BlobName,
connection_string=Credentials.STG_ConnectionString)
# while True:
# Regresa un loop asincrono
EPH_Loop = asyncio.get_event_loop()
# Host del Event Hub Processor
EPH_Host = EventProcessorHost(EventProcessor,
EPH_Config,
STG_Manager,
ep_params=["param1", "param2"],
eph_options=EPH_Options,
loop=EPH_Loop)
# Prepara los procedimientos a ejecutar en loop
EPH_Tasks = asyncio.gather(EPH_Host.open_async(), wait_and_close(EPH_Host))
# Corre el loop
EPH_Loop.run_until_complete(EPH_Tasks)
# En caso de ocurrri excepciones de teclado
except KeyboardInterrupt:
# Cancela las tareas y el loop
for task in asyncio.Task.all_tasks():
task.cancel()
EPH_Loop.run_forever()