47 lines
1.5 KiB
Python
Executable File
47 lines
1.5 KiB
Python
Executable File
#!/usr/bin/env python
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import pika
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import uuid
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class FibonacciClient(object):
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def __init__(self):
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self.connection = pika.AsyncoreConnection(pika.ConnectionParameters(
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host='localhost'))
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self.channel = self.connection.channel()
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result = self.channel.queue_declare(exclusive=True)
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self.callback_queue = result.queue
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self.requests = {}
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self.channel.basic_consume(self.on_response, no_ack=True,
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queue=self.callback_queue)
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def on_response(self, ch, method, props, body):
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corr_id = props.correlation_id
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if corr_id in self.requests:
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self.requests[corr_id] = body
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def call(self, n):
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corr_id = str(uuid.uuid4())
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self.requests[corr_id] = None
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self.channel.basic_publish(exchange='',
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routing_key='rpc_queue',
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properties=pika.BasicProperties(
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reply_to = self.callback_queue,
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correlation_id = corr_id,
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),
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body=str(n))
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while self.requests[corr_id] is None:
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pika.asyncore_loop(count=1)
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response = self.requests[corr_id]
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del self.requests[corr_id]
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return int(response)
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fibonacci_rpc = FibonacciClient()
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print " [x] Requesting fib(30)"
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response = fibonacci_rpc.call(30)
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print " [.] Got %r" % (response,)
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