1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
#!/usr/bin/env python
# --------------------------------------------------------------------------------------------
# Copyright (c) Microsoft Corporation. All rights reserved.
# Licensed under the MIT License. See License.txt in the project root for license information.
# --------------------------------------------------------------------------------------------
"""
Example to show scheduling messages to and cancelling messages from a Service Bus Queue.
"""
import os
import datetime
from azure.servicebus import ServiceBusClient, ServiceBusMessage
from azure.identity import DefaultAzureCredential
FULLY_QUALIFIED_NAMESPACE = os.environ["SERVICEBUS_FULLY_QUALIFIED_NAMESPACE"]
TOPIC_NAME = os.environ["SERVICEBUS_TOPIC_NAME"]
def schedule_single_message(sender):
message = ServiceBusMessage("Message to be scheduled")
scheduled_time_utc = datetime.datetime.utcnow() + datetime.timedelta(seconds=30)
sequence_number = sender.schedule_messages(message, scheduled_time_utc)
return sequence_number
def schedule_multiple_messages(sender):
messages_to_schedule = []
for _ in range(10):
messages_to_schedule.append(ServiceBusMessage("Message to be scheduled"))
scheduled_time_utc = datetime.datetime.utcnow() + datetime.timedelta(seconds=30)
sequence_numbers = sender.schedule_messages(messages_to_schedule, scheduled_time_utc)
return sequence_numbers
def main():
credential = DefaultAzureCredential()
servicebus_client = ServiceBusClient(FULLY_QUALIFIED_NAMESPACE, credential, logging_enable=True)
with servicebus_client:
sender = servicebus_client.get_topic_sender(topic_name=TOPIC_NAME)
with sender:
sequence_number = schedule_single_message(sender)
print("Single message is scheduled and sequence number is {}".format(sequence_number))
sequence_numbers = schedule_multiple_messages(sender)
print("Multiple messages are scheduled and sequence numbers are {}".format(sequence_numbers))
sender.cancel_scheduled_messages(sequence_number)
sender.cancel_scheduled_messages(sequence_numbers)
print("All scheduled messages are cancelled.")
if __name__ == "__main__":
main()
|
