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b/snf-cyclades-app/synnefo/logic/management/commands/queue_inspect.py | ||
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# Copyright 2011-2012 GRNET S.A. All rights reserved. |
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# |
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# Redistribution and use in source and binary forms, with or without |
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# modification, are permitted provided that the following conditions |
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# are met: |
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# |
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# 1. Redistributions of source code must retain the above copyright |
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# notice, this list of conditions and the following disclaimer. |
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# |
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# 2. Redistributions in binary form must reproduce the above copyright |
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# notice, this list of conditions and the following disclaimer in the |
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# documentation and/or other materials provided with the distribution. |
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# |
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# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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# SUCH DAMAGE. |
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# |
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# The views and conclusions contained in the software and documentation are |
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# those of the authors and should not be interpreted as representing official |
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# policies, either expressed or implied, of GRNET S.A. |
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# |
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import pprint |
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from optparse import make_option |
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from django.core.management.base import BaseCommand, CommandError |
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from synnefo.lib.amqp import AMQPClient |
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class Command(BaseCommand): |
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args = "<queue name>" |
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help = "Inspect the messages of a queue. Close all other clients in "\ |
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"order to be able to inspect unacknowledged messages." |
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option_list = BaseCommand.option_list + ( |
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make_option('--no-requeue', action='store_false', dest='requeue', |
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default=True, help="Do not requeue the messages"), |
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make_option('-i', '--interactive', action='store_true', default=False, |
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dest='interactive', help="Interactive mode") |
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) |
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def handle(self, *args, **options): |
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if len(args) != 1: |
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raise CommandError("Please provide a queue") |
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queue = args[0] |
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interactive = options['interactive'] |
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requeue = options['requeue'] |
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client = AMQPClient() |
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client.connect() |
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pp = pprint.PrettyPrinter(indent=4, width=4) |
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more_msgs = True |
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counter = 0 |
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sep = '-' * 80 |
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while more_msgs: |
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msg = client.basic_get(queue=queue) |
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if msg: |
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counter += 1 |
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print sep |
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print 'Message %d:' % counter |
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print sep |
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pp.pprint(msg) |
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if not requeue or interactive: |
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if interactive and not get_user_confirmation(): |
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continue |
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# Acknowledging the message will remove it from the queue |
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client.basic_ack(msg) |
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else: |
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more_msgs = False |
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def get_user_confirmation(): |
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ans = raw_input("Do you want to delete this message (N/y):") |
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if not ans: |
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return False |
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if ans not in ['Y', 'y']: |
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return False |
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return True |
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