ca4006-ca2/funding_agency.py

43 lines
1.4 KiB
Python

import pika
import pickle
from functions import log, save_project
from classes import *
remaining_funds = 1000000
connection = pika.BlockingConnection(pika.ConnectionParameters('localhost', 5672, '/', pika.PlainCredentials("user", "password")))
channel = connection.channel()
channel.queue_declare(queue='research_proposals')
def process_proposal(ch, method, properties, body):
project = pickle.loads(body)
if 200000 <= project.amount <= 500000 and project.amount <= remaining_funds:
channel.basic_publish(exchange='',
routing_key=properties.reply_to,
properties=pika.BasicProperties(correlation_id=properties.correlation_id),
body="approved")
project.status = 1
save_project(project)
log(f"{project.acronym} approved")
else:
channel.basic_publish(exchange='',
routing_key=properties.reply_to,
properties=pika.BasicProperties(correlation_id=properties.correlation_id),
body="rejected")
project.status = 2
save_project(project)
log(f"{project.acronym} rejected")
channel.basic_consume(queue='research_proposals', on_message_callback=process_proposal, auto_ack=True)
try:
channel.start_consuming()
except KeyboardInterrupt:
channel.stop_consuming()
connection.close()