Revision 9e826a59 snf-pithos-tools/pithos/tools/dispatcher.py
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from optparse import OptionParser |
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from carrot.connection import BrokerConnection |
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from carrot.messaging import Consumer |
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from carrot.messaging import Publisher |
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try: |
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from carrot.connection import BrokerConnection |
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from carrot.messaging import Consumer |
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from carrot.messaging import Publisher |
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except ImportError: |
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sys.stderr.write("Dispatcher requires 'carrot' python library to " \
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"be installed\n") |
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sys.exit(1) |
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BROKER_HOST = 'localhost' |
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DEBUG = False |
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if __name__ == '__main__':
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def main():
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parser = OptionParser() |
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parser.add_option('-v', '--verbose', action='store_true', default=False,
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dest='verbose', help='Enable verbose logging') |
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parser.add_option('--test', action='store_true', default=False,
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dest='test', help='Produce a dummy message for testing') |
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opts, args = parser.parse_args() |
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if opts.verbose: |
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DEBUG = True |
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logging.basicConfig(format='%(asctime)s [%(levelname)s] %(name)s %(message)s', |
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datefmt='%Y-%m-%d %H:%M:%S', |
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level=logging.DEBUG if DEBUG else logging.INFO) |
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logger = logging.getLogger('dispatcher')
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conn = BrokerConnection(hostname=opts.host, port=opts.port, |
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userid=opts.user, password=opts.password, |
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virtual_host=opts.vhost) |
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consumer = Consumer(connection=conn, queue=opts.queue, |
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exchange=opts.exchange, routing_key=opts.key, |
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exchange_type="topic") |
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callback = None |
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if opts.callback: |
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cb = opts.callback.rsplit('.', 1)
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__import__(cb[0]) |
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cb_module = sys.modules[cb[0]] |
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callback = getattr(cb_module, cb[1]) |
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def process_message(message_data, message): |
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logger.debug('%s', message_data)
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if callback: |
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callback(message_data) |
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message.ack() |
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consumer.register_callback(process_message) |
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try: |
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consumer.wait() |
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except KeyboardInterrupt: |
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pass |
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if __name__ == '__main__': |
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main() |
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