artamonova_tatyana_lab_4/Consumer1.py

@@ -1,23 +0,0 @@
-import pika
-import json
-import time
-
-credentials = pika.PlainCredentials('guest', 'guest')
-connection = pika.BlockingConnection(
-  pika.ConnectionParameters(host='localhost', credentials=credentials))
-channel = connection.channel()
-
-channel.queue_declare(queue='order_queue_1')
-
-channel.queue_bind(exchange='order_events', queue='order_queue_1')
-
-def callback(ch, method, properties, body):
-  event = json.loads(body.decode('utf-8'))
-  print(f'Получено событие (очередь 1): {event}')
-  print(f'Обработка заказа {event["order_id"]}...')
-  time.sleep(2)
-
-channel.basic_consume(queue='order_queue_1', on_message_callback=callback, auto_ack=True)
-
-print('Ожидание сообщений (очередь 1)...')
-channel.start_consuming()

artamonova_tatyana_lab_4/Consumer2.py

@@ -1,22 +0,0 @@
-import pika
-import json
-import time
-
-credentials = pika.PlainCredentials('guest', 'guest')
-connection = pika.BlockingConnection(
-  pika.ConnectionParameters(host='localhost', credentials=credentials))
-channel = connection.channel()
-
-channel.queue_declare(queue='order_queue_2')
-
-channel.queue_bind(exchange='order_events', queue='order_queue_2')
-
-def callback(ch, method, properties, body):
-  event = json.loads(body.decode('utf-8'))
-  print(f'Получено событие (очередь 2): {event}')
-  print(f'Обработка заказа {event["order_id"]} завершена.')
-
-channel.basic_consume(queue='order_queue_2', on_message_callback=callback, auto_ack=True)
-
-print('Ожидание сообщений (очередь 2)...')
-channel.start_consuming()

artamonova_tatyana_lab_4/Publisher.py

@@ -1,31 +0,0 @@
-import pika
-import json
-import time
-import random
-
-credentials = pika.PlainCredentials('guest', 'guest')
-connection = pika.BlockingConnection(
-  pika.ConnectionParameters(host='localhost', credentials=credentials))
-channel = connection.channel()
-
-channel.exchange_declare(exchange='order_events', exchange_type='fanout')
-
-while True:
-  event = {
-    'event_type': 'order_created',
-    'order_id': random.randint(1000, 9999),
-    'customer_name': f'Клиент {random.randint(1, 100)}',
-    'product_name': f'Товар {random.randint(1, 10)}',
-    'quantity': random.randint(1, 10),
-    'timestamp': time.time()
-  }
-
-  channel.basic_publish(
-    exchange='order_events',
-    routing_key='',
-    body=json.dumps(event)
-  )
-  print(f'Опубликовано событие: {event}')
-  time.sleep(1)
-
-connection.close()

artamonova_tatyana_lab_4/readme.md

@@ -1,26 +0,0 @@
-## Лабораторная работа №4 ПИбд-42 Артамонова Татьяна
-
-### Прохождение туториала
-1. ![tutorial-1.png](images/tutorial-1.png)
-2. ![tutorial-2.png](images/tutorial-2.png)
-3. ![tutorial-3.png](images/tutorial-3.png)
-
-### Запуск приложений и анализ скорости обработки
-
-1. Запуск Publisher, Consumer 1 и Consumer 2.
-* Consumer 1: Очередь order_queue_1 будет иметь некоторое количество сообщений, так как Consumer 1 обрабатывает сообщения с задержкой в 2 секунды.
-* Consumer 2: Очередь order_queue_2 будет практически пустой, так как Consumer 2 обрабатывает сообщения моментально.
-
-2. Запуск нескольких копий Consumer 1
-* Очередь order_queue_1 будет иметь меньше сообщений, так как 3 Consumer-а обрабатывают сообщения быстрее, чем 1 Consumer.
-
-![queue1.png](images/queue1.png)
-
-![queue2.png](images/queue2.png)
-
-![exchange.png](images/exchange.png)
-
-![consumers.png](images/consumers.png)
-
-### Видео
-https://vk.com/video/@artamonovat?section=upload&z=video212084908_456239359

artamonova_tatyana_lab_4/tutorial/1/receive.py

@@ -1,25 +0,0 @@
-import pika, sys, os
-
-def main():
-    connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost'))
-    channel = connection.channel()
-
-    channel.queue_declare(queue='hello')
-
-    def callback(ch, method, properties, body):
-        print(f" [x] Received {body}")
-
-    channel.basic_consume(queue='hello', on_message_callback=callback, auto_ack=True)
-
-    print(' [*] Waiting for messages. To exit press CTRL+C')
-    channel.start_consuming()
-
-if __name__ == '__main__':
-    try:
-        main()
-    except KeyboardInterrupt:
-        print('Interrupted')
-        try:
-            sys.exit(0)
-        except SystemExit:
-            os._exit(0)

artamonova_tatyana_lab_4/tutorial/1/send.py

@@ -1,11 +0,0 @@
-import pika
-
-connection = pika.BlockingConnection(
-    pika.ConnectionParameters(host='localhost'))
-channel = connection.channel()
-
-channel.queue_declare(queue='hello')
-
-channel.basic_publish(exchange='', routing_key='hello', body='Hello World!')
-print(" [x] Sent 'Hello World!'")
-connection.close()

artamonova_tatyana_lab_4/tutorial/2/new_task.py

@@ -1,19 +0,0 @@
-import pika
-import sys
-
-connection = pika.BlockingConnection(
-    pika.ConnectionParameters(host='localhost'))
-channel = connection.channel()
-
-channel.queue_declare(queue='task_queue', durable=True)
-
-message = ' '.join(sys.argv[1:]) or "Hello World!"
-channel.basic_publish(
-    exchange='',
-    routing_key='task_queue',
-    body=message,
-    properties=pika.BasicProperties(
-        delivery_mode=pika.DeliveryMode.Persistent
-    ))
-print(f" [x] Sent {message}")
-connection.close()

artamonova_tatyana_lab_4/tutorial/2/worker.py

@@ -1,22 +0,0 @@
-import pika
-import time
-
-connection = pika.BlockingConnection(
-    pika.ConnectionParameters(host='localhost'))
-channel = connection.channel()
-
-channel.queue_declare(queue='task_queue', durable=True)
-print(' [*] Waiting for messages. To exit press CTRL+C')
-
-
-def callback(ch, method, properties, body):
-    print(f" [x] Received {body.decode()}")
-    time.sleep(body.count(b'.'))
-    print(" [x] Done")
-    ch.basic_ack(delivery_tag=method.delivery_tag)
-
-
-channel.basic_qos(prefetch_count=1)
-channel.basic_consume(queue='task_queue', on_message_callback=callback)
-
-channel.start_consuming()

artamonova_tatyana_lab_4/tutorial/3/emit_log.py

@@ -1,13 +0,0 @@
-import pika
-import sys
-
-connection = pika.BlockingConnection(
-    pika.ConnectionParameters(host='localhost'))
-channel = connection.channel()
-
-channel.exchange_declare(exchange='logs', exchange_type='fanout')
-
-message = ' '.join(sys.argv[1:]) or "info: Hello World!"
-channel.basic_publish(exchange='logs', routing_key='', body=message)
-print(f" [x] Sent {message}")
-connection.close()

artamonova_tatyana_lab_4/tutorial/3/receive_logs.py

@@ -1,22 +0,0 @@
-import pika
-
-connection = pika.BlockingConnection(
-    pika.ConnectionParameters(host='localhost'))
-channel = connection.channel()
-
-channel.exchange_declare(exchange='logs', exchange_type='fanout')
-
-result = channel.queue_declare(queue='', exclusive=True)
-queue_name = result.method.queue
-
-channel.queue_bind(exchange='logs', queue=queue_name)
-
-print(' [*] Waiting for logs. To exit press CTRL+C')
-
-def callback(ch, method, properties, body):
-    print(f" [x] {body}")
-
-channel.basic_consume(
-    queue=queue_name, on_message_callback=callback, auto_ack=True)
-
-channel.start_consuming()