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Diffstat (limited to 'qpid/python/examples/api/drain')
-rwxr-xr-x | qpid/python/examples/api/drain | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/qpid/python/examples/api/drain b/qpid/python/examples/api/drain new file mode 100755 index 0000000000..5e30153bc2 --- /dev/null +++ b/qpid/python/examples/api/drain @@ -0,0 +1,97 @@ +#!/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. +# + +import optparse +from qpid.messaging import * +from qpid.util import URL +from qpid.log import enable, DEBUG, WARN + +parser = optparse.OptionParser(usage="usage: %prog [options] ADDRESS ...", + description="Drain messages from the supplied address.") +parser.add_option("-b", "--broker", default="localhost", + help="connect to specified BROKER (default %default)") +parser.add_option("-c", "--count", type="int", + help="number of messages to drain") +parser.add_option("-f", "--forever", action="store_true", + help="ignore timeout and wait forever") +parser.add_option("-r", "--reconnect", action="store_true", + help="enable auto reconnect") +parser.add_option("-i", "--reconnect-interval", type="float", default=3, + help="interval between reconnect attempts") +parser.add_option("-l", "--reconnect-limit", type="int", + help="maximum number of reconnect attempts") +parser.add_option("-t", "--timeout", type="float", default=0, + help="timeout in seconds to wait before exiting (default %default)") +parser.add_option("-p", "--print", dest="format", default="%(M)s", + help="format string for printing messages (default %default)") +parser.add_option("-v", dest="verbose", action="store_true", + help="enable logging") + +opts, args = parser.parse_args() + +if opts.verbose: + enable("qpid", DEBUG) +else: + enable("qpid", WARN) + +if args: + addr = args.pop(0) +else: + parser.error("address is required") +if opts.forever: + timeout = None +else: + timeout = opts.timeout + +class Formatter: + + def __init__(self, message): + self.message = message + self.environ = {"M": self.message, + "P": self.message.properties, + "C": self.message.content} + + def __getitem__(self, st): + return eval(st, self.environ) + +conn = Connection(opts.broker, + reconnect=opts.reconnect, + reconnect_interval=opts.reconnect_interval, + reconnect_limit=opts.reconnect_limit) +try: + conn.open() + ssn = conn.session() + rcv = ssn.receiver(addr) + + count = 0 + while not opts.count or count < opts.count: + try: + msg = rcv.fetch(timeout=timeout) + print opts.format % Formatter(msg) + count += 1 + ssn.acknowledge() + except Empty: + break +except ReceiverError, e: + print e +except KeyboardInterrupt: + pass + +conn.close() |