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Diffstat (limited to 'trunk/qpid/python/examples/xml-exchange/declare_queues.py')
-rwxr-xr-x | trunk/qpid/python/examples/xml-exchange/declare_queues.py | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/trunk/qpid/python/examples/xml-exchange/declare_queues.py b/trunk/qpid/python/examples/xml-exchange/declare_queues.py new file mode 100755 index 0000000000..ca40af5dc5 --- /dev/null +++ b/trunk/qpid/python/examples/xml-exchange/declare_queues.py @@ -0,0 +1,90 @@ +#!/usr/bin/env python +# +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, +# software distributed under the License is distributed on an +# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +# KIND, either express or implied. See the License for the +# specific language governing permissions and limitations +# under the License. +# +""" + declare_queues.py + + Creates and binds a queue on an AMQP direct exchange. + + All messages using the routing key "routing_key" are + sent to the queue named "message_queue". +""" + +import qpid +import sys +import os +from qpid.util import connect +from qpid.connection import Connection +from qpid.datatypes import Message, RangedSet, uuid4 +from qpid.queue import Empty + +#----- Initialization ----------------------------------- + + +# Set parameters for login + +host="127.0.0.1" +port=5672 +user="guest" +password="guest" + +# If an alternate host or port has been specified, use that instead +# (this is used in our unit tests) +if len(sys.argv) > 1 : + host=sys.argv[1] +if len(sys.argv) > 2 : + port=int(sys.argv[2]) + +# Create a connection. +socket = connect(host, port) +connection = Connection (sock=socket, username=user, password=password) +connection.start() +session = connection.session(str(uuid4())) + +#----- Create a queue ------------------------------------- + +# queue_declare() creates an AMQP queue, which is held +# on the broker. Published messages are sent to the AMQP queue, +# from which messages are delivered to consumers. +# +# queue_bind() determines which messages are routed to a queue. +# Route all messages with the routing key "routing_key" to +# the AMQP queue named "message_queue". + +session.exchange_declare(exchange="xml", type="xml") +session.queue_declare(queue="message_queue") + +binding = {} +binding["xquery"] = """ + let $w := ./weather + return $w/station = 'Raleigh-Durham International Airport (KRDU)' + and $w/temperature_f > 50 + and $w/temperature_f - $w/dewpoint > 5 + and $w/wind_speed_mph > 7 + and $w/wind_speed_mph < 20 """ + + +session.exchange_bind(exchange="xml", queue="message_queue", binding_key="weather", arguments=binding) + + +#----- Cleanup --------------------------------------------- + +session.close() + + |