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# Copyright (c) 2013 Red Hat, Inc.
#
# Licensed 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.
"""Implements a message controller that understands Zaqar messages."""
from zaqarclient.queues.v2 import core
class Message(object):
"""A handler for Zaqar server Message resources.
Attributes are only downloaded once - at creation time.
"""
def __init__(self, queue, ttl, age, body, href=None, id=None,
claim_id=None, claim_count=0, checksum=None):
self.queue = queue
self.href = href
self.ttl = ttl
self.age = age
self.body = body
self.claim_count = claim_count
self.checksum = checksum
# NOTE(flaper87): Is this really
# necessary? Should this be returned
# by Zaqar?
# The url has two forms depending on if it has been claimed.
# /v2/queues/worker-jobs/messages/5c6939a8?claim_id=63c9a592
# or
# /v2/queues/worker-jobs/messages/5c6939a8
if id is None:
self.id = href.split('/')[-1]
if '?' in self.id:
self.id = self.id.split('?')[0]
else:
self.id = id
def __repr__(self):
return '<Message id:{id} ttl:{ttl}>'.format(id=self.id,
ttl=self.ttl)
@property
def claim_id(self):
if '=' in self.href:
return self.href.split('=')[-1]
def delete(self):
req, trans = self.queue.client._request_and_transport()
core.message_delete(trans, req, self.queue._name,
self.id, self.claim_id)
def create_object(parent):
return lambda args: Message(parent, **args)
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