Beispiel #1
0
    def on_post(self, req, resp, project_id, queue_name):
        LOG.debug(
            u'Claims collection POST - queue: %(queue)s, '
            u'project: %(project)s', {
                'queue': queue_name,
                'project': project_id
            })

        # Check for an explicit limit on the # of messages to claim
        limit = req.get_param_as_int('limit')
        claim_options = {} if limit is None else {'limit': limit}

        # NOTE(kgriffs): Clients may or may not actually include the
        # Content-Length header when the body is empty; the following
        # check works for both 0 and None.
        if not req.content_length:
            # No values given, so use defaults
            metadata = self._default_meta
        else:
            # Read claim metadata (e.g., TTL) and raise appropriate
            # HTTP errors as needed.
            document = wsgi_utils.deserialize(req.stream, req.content_length)
            metadata = wsgi_utils.sanitize(document, self._claim_post_spec)

        # Claim some messages
        try:
            self._validate.claim_creation(metadata, limit=limit)

            cid, msgs = self._claim_controller.create(queue_name,
                                                      metadata=metadata,
                                                      project=project_id,
                                                      **claim_options)

            # Buffer claimed messages
            # TODO(kgriffs): optimize, along with serialization (below)
            resp_msgs = list(msgs)

        except validation.ValidationFailed as ex:
            LOG.debug(ex)
            raise wsgi_errors.HTTPBadRequestAPI(six.text_type(ex))

        except Exception as ex:
            LOG.exception(ex)
            description = _(u'Claim could not be created.')
            raise wsgi_errors.HTTPServiceUnavailable(description)

        # Serialize claimed messages, if any. This logic assumes
        # the storage driver returned well-formed messages.
        if len(resp_msgs) != 0:
            base_path = req.path.rpartition('/')[0]
            resp_msgs = [
                wsgi_utils.format_message_v1_1(msg, base_path, cid)
                for msg in resp_msgs
            ]

            resp.location = req.path + '/' + cid
            resp.body = utils.to_json({'messages': resp_msgs})
            resp.status = falcon.HTTP_201
        else:
            resp.status = falcon.HTTP_204
Beispiel #2
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    def on_get(self, req, resp, project_id, queue_name, claim_id):
        LOG.debug(u'Claim item GET - claim: %(claim_id)s, '
                  u'queue: %(queue_name)s, project: %(project_id)s',
                  {'queue_name': queue_name,
                   'project_id': project_id,
                   'claim_id': claim_id})
        try:
            meta, msgs = self._claim_controller.get(
                queue_name,
                claim_id=claim_id,
                project=project_id)

            # Buffer claimed messages
            # TODO(kgriffs): Optimize along with serialization (see below)
            meta['messages'] = list(msgs)

        except storage_errors.DoesNotExist as ex:
            LOG.debug(ex)
            raise falcon.HTTPNotFound()
        except Exception as ex:
            LOG.exception(ex)
            description = _(u'Claim could not be queried.')
            raise wsgi_errors.HTTPServiceUnavailable(description)

        # Serialize claimed messages
        # TODO(kgriffs): Optimize
        meta['messages'] = [wsgi_utils.format_message_v1(
            msg, req.path.rsplit('/', 2)[0], meta['id'])
            for msg in meta['messages']]

        meta['href'] = req.path
        del meta['id']

        resp.content_location = req.relative_uri
        resp.body = utils.to_json(meta)
Beispiel #3
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    def on_get(self, req, resp, project_id, queue_name, message_id):
        LOG.debug(
            u'Messages item GET - message: %(message)s, '
            u'queue: %(queue)s, project: %(project)s', {
                'message': message_id,
                'queue': queue_name,
                'project': project_id
            })
        try:
            message = self.message_controller.get(queue_name,
                                                  message_id,
                                                  project=project_id)

        except storage_errors.DoesNotExist as ex:
            LOG.debug(ex)
            raise falcon.HTTPNotFound()

        except Exception as ex:
            LOG.exception(ex)
            description = _(u'Message could not be retrieved.')
            raise wsgi_errors.HTTPServiceUnavailable(description)

        # Prepare response
        message['href'] = req.path
        del message['id']

        resp.content_location = req.relative_uri
        resp.body = utils.to_json(message)
Beispiel #4
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    def on_delete(self, req, resp, project_id, queue_name, message_id):
        LOG.debug(
            u'Messages item DELETE - message: %(message)s, '
            u'queue: %(queue)s, project: %(project)s', {
                'message': message_id,
                'queue': queue_name,
                'project': project_id
            })
        try:
            self.message_controller.delete(queue_name,
                                           message_id=message_id,
                                           project=project_id,
                                           claim=req.get_param('claim_id'))

        except storage_errors.NotPermitted as ex:
            LOG.exception(ex)
            title = _(u'Unable to delete')
            description = _(u'This message is claimed; it cannot be '
                            u'deleted without a valid claim_id.')
            raise falcon.HTTPForbidden(title, description)

        except Exception as ex:
            LOG.exception(ex)
            description = _(u'Message could not be deleted.')
            raise wsgi_errors.HTTPServiceUnavailable(description)

        # Alles guete
        resp.status = falcon.HTTP_204
Beispiel #5
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    def on_put(self, req, resp, project_id, queue_name):
        LOG.debug(
            u'Queue item PUT - queue: %(queue)s, '
            u'project: %(project)s', {
                'queue': queue_name,
                'project': project_id
            })

        try:
            # Place JSON size restriction before parsing
            self.validate.queue_metadata_length(req.content_length)
        except validation.ValidationFailed as ex:
            LOG.debug(ex)
            raise wsgi_errors.HTTPBadRequestAPI(six.text_type(ex))

        # Deserialize queue metadata
        metadata = None
        if req.content_length:
            document = wsgi_utils.deserialize(req.stream, req.content_length)
            metadata = wsgi_utils.sanitize(document, spec=None)

        try:
            created = self.queue_controller.create(queue_name,
                                                   metadata=metadata,
                                                   project=project_id)

        except Exception as ex:
            LOG.exception(ex)
            description = _(u'Queue could not be created.')
            raise wsgi_errors.HTTPServiceUnavailable(description)

        resp.status = falcon.HTTP_201 if created else falcon.HTTP_204
        resp.location = req.path
Beispiel #6
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    def on_get(self, req, resp, project_id, queue_name, message_id):
        LOG.debug(
            u'Messages item GET - message: %(message)s, '
            u'queue: %(queue)s, project: %(project)s', {
                'message': message_id,
                'queue': queue_name,
                'project': project_id
            })
        try:
            message = self._message_controller.get(queue_name,
                                                   message_id,
                                                   project=project_id)

        except storage_errors.DoesNotExist as ex:
            LOG.debug(ex)
            raise falcon.HTTPNotFound()

        except Exception as ex:
            LOG.exception(ex)
            description = _(u'Message could not be retrieved.')
            raise wsgi_errors.HTTPServiceUnavailable(description)

        # Prepare response
        message['href'] = req.path
        message = wsgi_utils.format_message_v1_1(message,
                                                 req.path.rsplit('/', 2)[0],
                                                 message['claim_id'])

        resp.body = utils.to_json(message)
Beispiel #7
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    def on_get(self, req, resp, project_id, queue_name):
        try:
            resp_dict = self.queue_ctrl.stats(queue_name,
                                              project=project_id)

            message_stats = resp_dict['messages']

            if message_stats['total'] != 0:
                base_path = req.path[:req.path.rindex('/')] + '/messages/'

                newest = message_stats['newest']
                newest['href'] = base_path + newest['id']
                del newest['id']

                oldest = message_stats['oldest']
                oldest['href'] = base_path + oldest['id']
                del oldest['id']

            resp.content_location = req.path
            resp.body = utils.to_json(resp_dict)
            # status defaults to 200

        except storage_errors.DoesNotExist as ex:
            LOG.debug(ex)
            raise falcon.HTTPNotFound()

        except Exception as ex:
            LOG.exception(ex)
            description = _(u'Queue stats could not be read.')
            raise wsgi_errors.HTTPServiceUnavailable(description)
Beispiel #8
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    def _get_by_id(self, base_path, project_id, queue_name, ids):
        """Returns one or more messages from the queue by ID."""
        try:
            self._validate.message_listing(limit=len(ids))
            messages = self.message_controller.bulk_get(queue_name,
                                                        message_ids=ids,
                                                        project=project_id)

        except validation.ValidationFailed as ex:
            LOG.debug(ex)
            raise wsgi_errors.HTTPBadRequestAPI(six.text_type(ex))

        except Exception as ex:
            LOG.exception(ex)
            description = _(u'Message could not be retrieved.')
            raise wsgi_errors.HTTPServiceUnavailable(description)

        # Prepare response
        messages = list(messages)
        if not messages:
            return None

        base_path += '/'
        for each_message in messages:
            each_message['href'] = base_path + each_message['id']
            del each_message['id']

        return messages
Beispiel #9
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    def _pop_messages(self, queue_name, project_id, pop_limit):
        try:
            LOG.debug(
                u'POP messages - queue: %(queue)s, '
                u'project: %(project)s', {
                    'queue': queue_name,
                    'project': project_id
                })

            messages = self._message_controller.pop(queue_name,
                                                    project=project_id,
                                                    limit=pop_limit)

        except Exception as ex:
            LOG.exception(ex)
            description = _(u'Messages could not be popped.')
            raise wsgi_errors.HTTPServiceUnavailable(description)

        # Prepare response
        if not messages:
            messages = []
        body = {'messages': messages}
        body = utils.to_json(body)

        return falcon.HTTP_200, body
Beispiel #10
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    def on_patch(self, req, resp, project_id, queue_name, claim_id):
        LOG.debug(
            u'Claim Item PATCH - claim: %(claim_id)s, '
            u'queue: %(queue_name)s, project:%(project_id)s' % {
                'queue_name': queue_name,
                'project_id': project_id,
                'claim_id': claim_id
            })

        # Read claim metadata (e.g., TTL) and raise appropriate
        # HTTP errors as needed.
        document = wsgi_utils.deserialize(req.stream, req.content_length)
        metadata = wsgi_utils.sanitize(document, CLAIM_PATCH_SPEC)

        try:
            self._validate.claim_updating(metadata)
            self._claim_controller.update(queue_name,
                                          claim_id=claim_id,
                                          metadata=metadata,
                                          project=project_id)

            resp.status = falcon.HTTP_204

        except validation.ValidationFailed as ex:
            LOG.debug(ex)
            raise wsgi_errors.HTTPBadRequestAPI(six.text_type(ex))

        except storage_errors.DoesNotExist as ex:
            LOG.debug(ex)
            raise falcon.HTTPNotFound()

        except Exception as ex:
            LOG.exception(ex)
            description = _(u'Claim could not be updated.')
            raise wsgi_errors.HTTPServiceUnavailable(description)
Beispiel #11
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    def on_put(self, req, resp, project_id, queue_name):
        LOG.debug(u'Queue metadata PUT - queue: %(queue)s, '
                  u'project: %(project)s',
                  {'queue': queue_name, 'project': project_id})

        try:
            # Place JSON size restriction before parsing
            self._validate.queue_metadata_length(req.content_length)
        except validation.ValidationFailed as ex:
            LOG.debug(ex)
            raise wsgi_errors.HTTPBadRequestAPI(six.text_type(ex))

        # Deserialize queue metadata
        document = wsgi_utils.deserialize(req.stream, req.content_length)
        metadata = wsgi_utils.sanitize(document, spec=None)

        try:
            self.queue_ctrl.set_metadata(queue_name,
                                         metadata=metadata,
                                         project=project_id)

        except validation.ValidationFailed as ex:
            LOG.debug(ex)
            raise wsgi_errors.HTTPBadRequestAPI(six.text_type(ex))

        except storage_errors.QueueDoesNotExist:
            raise falcon.HTTPNotFound()

        except Exception as ex:
            LOG.exception(ex)
            description = _(u'Metadata could not be updated.')
            raise wsgi_errors.HTTPServiceUnavailable(description)

        resp.status = falcon.HTTP_204
        resp.location = req.path
Beispiel #12
0
 def on_get(self, req, resp, **kwargs):
     try:
         resp_dict = self._driver.health()
         resp.body = utils.to_json(resp_dict)
     except Exception as ex:
         LOG.exception(ex)
         description = _(u'Health status could not be read.')
         raise wsgi_errors.HTTPServiceUnavailable(description)
Beispiel #13
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    def _get(self, req, project_id, queue_name):
        client_uuid = wsgi_helpers.get_client_uuid(req)
        kwargs = {}

        # NOTE(kgriffs): This syntax ensures that
        # we don't clobber default values with None.
        req.get_param('marker', store=kwargs)
        req.get_param_as_int('limit', store=kwargs)
        req.get_param_as_bool('echo', store=kwargs)
        req.get_param_as_bool('include_claimed', store=kwargs)

        try:
            self._validate.message_listing(**kwargs)
            results = self._message_controller.list(queue_name,
                                                    project=project_id,
                                                    client_uuid=client_uuid,
                                                    **kwargs)

            # Buffer messages
            cursor = next(results)
            messages = list(cursor)

        except validation.ValidationFailed as ex:
            LOG.debug(ex)
            raise wsgi_errors.HTTPBadRequestAPI(six.text_type(ex))

        except storage_errors.DoesNotExist as ex:
            LOG.debug(ex)
            raise falcon.HTTPNotFound()

        except Exception as ex:
            LOG.exception(ex)
            description = _(u'Messages could not be listed.')
            raise wsgi_errors.HTTPServiceUnavailable(description)

        if not messages:
            messages = []

        else:
            # Found some messages, so prepare the response
            kwargs['marker'] = next(results)
            base_path = req.path.rsplit('/', 1)[0]
            messages = [
                wsgi_utils.format_message_v1_1(m, base_path, m['claim_id'])
                for m in messages
            ]

        return {
            'messages':
            messages,
            'links': [{
                'rel': 'next',
                'href': req.path + falcon.to_query_str(kwargs)
            }]
        }
Beispiel #14
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    def _delete_messages_by_id(self, queue_name, ids, project_id):
        try:
            self._message_controller.bulk_delete(queue_name,
                                                 message_ids=ids,
                                                 project=project_id)

        except Exception as ex:
            LOG.exception(ex)
            description = _(u'Messages could not be deleted.')
            raise wsgi_errors.HTTPServiceUnavailable(description)

        return falcon.HTTP_204
Beispiel #15
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    def on_delete(self, req, resp, project_id, queue_name):
        LOG.debug(u'Queue item DELETE - queue: %(queue)s, '
                  u'project: %(project)s',
                  {'queue': queue_name, 'project': project_id})
        try:
            self._queue_controller.delete(queue_name, project=project_id)

        except Exception as ex:
            LOG.exception(ex)
            description = _(u'Queue could not be deleted.')
            raise wsgi_errors.HTTPServiceUnavailable(description)

        resp.status = falcon.HTTP_204
Beispiel #16
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    def on_get(self, req, resp, project_id):
        LOG.debug(u'Queue collection GET - project: %(project)s',
                  {'project': project_id})

        kwargs = {}

        # NOTE(kgriffs): This syntax ensures that
        # we don't clobber default values with None.
        req.get_param('marker', store=kwargs)
        req.get_param_as_int('limit', store=kwargs)
        req.get_param_as_bool('detailed', store=kwargs)

        try:
            self._validate.queue_listing(**kwargs)
            results = self.queue_controller.list(project=project_id, **kwargs)

        except validation.ValidationFailed as ex:
            LOG.debug(ex)
            raise wsgi_errors.HTTPBadRequestAPI(six.text_type(ex))

        except Exception as ex:
            LOG.exception(ex)
            description = _(u'Queues could not be listed.')
            raise wsgi_errors.HTTPServiceUnavailable(description)

        # Buffer list of queues
        queues = list(next(results))

        # Check for an empty list
        if len(queues) == 0:
            resp.status = falcon.HTTP_204
            return

        # Got some. Prepare the response.
        kwargs['marker'] = next(results)
        for each_queue in queues:
            each_queue['href'] = req.path + '/' + each_queue['name']

        response_body = {
            'queues': queues,
            'links': [
                {
                    'rel': 'next',
                    'href': req.path + falcon.to_query_str(kwargs)
                }
            ]
        }

        resp.content_location = req.relative_uri
        resp.body = utils.to_json(response_body)
Beispiel #17
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    def on_post(self, req, resp, project_id, queue_name):
        LOG.debug(u'Claims collection POST - queue: %(queue)s, '
                  u'project: %(project)s',
                  {'queue': queue_name, 'project': project_id})

        # Check for an explicit limit on the # of messages to claim
        limit = req.get_param_as_int('limit')
        claim_options = {} if limit is None else {'limit': limit}

        # Read claim metadata (e.g., TTL) and raise appropriate
        # HTTP errors as needed.
        document = wsgi_utils.deserialize(req.stream, req.content_length)
        metadata = wsgi_utils.sanitize(document, CLAIM_POST_SPEC)

        # Claim some messages
        try:
            self._validate.claim_creation(metadata, limit=limit)
            cid, msgs = self.claim_controller.create(
                queue_name,
                metadata=metadata,
                project=project_id,
                **claim_options)

            # Buffer claimed messages
            # TODO(kgriffs): optimize, along with serialization (below)
            resp_msgs = list(msgs)

        except validation.ValidationFailed as ex:
            LOG.debug(ex)
            raise wsgi_errors.HTTPBadRequestAPI(six.text_type(ex))

        except Exception as ex:
            LOG.exception(ex)
            description = _(u'Claim could not be created.')
            raise wsgi_errors.HTTPServiceUnavailable(description)

        # Serialize claimed messages, if any. This logic assumes
        # the storage driver returned well-formed messages.
        if len(resp_msgs) != 0:
            for msg in resp_msgs:
                msg['href'] = _msg_uri_from_claim(
                    req.path.rpartition('/')[0], msg['id'], cid)

                del msg['id']

            resp.location = req.path + '/' + cid
            resp.body = utils.to_json(resp_msgs)
            resp.status = falcon.HTTP_201
        else:
            resp.status = falcon.HTTP_204
Beispiel #18
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    def on_put(self, req, resp, project_id, queue_name):
        LOG.debug(u'Queue item PUT - queue: %(queue)s, '
                  u'project: %(project)s',
                  {'queue': queue_name, 'project': project_id})

        try:
            created = self.queue_controller.create(
                queue_name, project=project_id)

        except Exception as ex:
            LOG.exception(ex)
            description = _(u'Queue could not be created.')
            raise wsgi_errors.HTTPServiceUnavailable(description)

        resp.status = falcon.HTTP_201 if created else falcon.HTTP_204
        resp.location = req.path
Beispiel #19
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    def on_delete(self, req, resp, project_id, queue_name, claim_id):
        LOG.debug(u'Claim item DELETE - claim: %(claim_id)s, '
                  u'queue: %(queue_name)s, project: %(project_id)s' %
                  {'queue_name': queue_name,
                   'project_id': project_id,
                   'claim_id': claim_id})
        try:
            self.claim_controller.delete(queue_name,
                                         claim_id=claim_id,
                                         project=project_id)

            resp.status = falcon.HTTP_204

        except Exception as ex:
            LOG.exception(ex)
            description = _(u'Claim could not be deleted.')
            raise wsgi_errors.HTTPServiceUnavailable(description)
Beispiel #20
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    def on_delete(self, req, resp, project_id, queue_name, message_id):

        LOG.debug(
            u'Messages item DELETE - message: %(message)s, '
            u'queue: %(queue)s, project: %(project)s', {
                'message': message_id,
                'queue': queue_name,
                'project': project_id
            })

        error_title = _(u'Unable to delete')

        try:
            self._message_controller.delete(queue_name,
                                            message_id=message_id,
                                            project=project_id,
                                            claim=req.get_param('claim_id'))

        except storage_errors.MessageNotClaimed as ex:
            LOG.debug(ex)
            description = _(u'A claim was specified, but the message '
                            u'is not currently claimed.')
            raise falcon.HTTPBadRequest(error_title, description)

        except storage_errors.ClaimDoesNotExist as ex:
            LOG.debug(ex)
            description = _(u'The specified claim does not exist or '
                            u'has expired.')
            raise falcon.HTTPBadRequest(error_title, description)

        except storage_errors.NotPermitted as ex:
            LOG.debug(ex)
            description = _(u'This message is claimed; it cannot be '
                            u'deleted without a valid claim ID.')
            raise falcon.HTTPForbidden(error_title, description)

        except Exception as ex:
            LOG.exception(ex)
            description = _(u'Message could not be deleted.')
            raise wsgi_errors.HTTPServiceUnavailable(description)

        # Alles guete
        resp.status = falcon.HTTP_204
Beispiel #21
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    def on_get(self, req, resp, project_id, queue_name):
        LOG.debug(u'Queue metadata GET - queue: %(queue)s, '
                  u'project: %(project)s',
                  {'queue': queue_name, 'project': project_id})

        try:
            resp_dict = self._queue_controller.get(queue_name,
                                                   project=project_id)

        except storage_errors.DoesNotExist as ex:
            LOG.debug(ex)
            raise falcon.HTTPNotFound()

        except Exception as ex:
            LOG.exception(ex)
            description = _(u'Queue metadata could not be retrieved.')
            raise wsgi_errors.HTTPServiceUnavailable(description)

        resp.body = utils.to_json(resp_dict)
Beispiel #22
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    def on_delete(self, req, resp, project_id, queue_name):
        # NOTE(zyuan): Attempt to delete the whole message collection
        # (without an "ids" parameter) is not allowed
        ids = req.get_param_as_list('ids', required=True)

        try:
            self._validate.message_listing(limit=len(ids))
            self.message_controller.bulk_delete(queue_name,
                                                message_ids=ids,
                                                project=project_id)

        except validation.ValidationFailed as ex:
            LOG.debug(ex)
            raise wsgi_errors.HTTPBadRequestAPI(six.text_type(ex))

        except Exception as ex:
            LOG.exception(ex)
            description = _(u'Messages could not be deleted.')
            raise wsgi_errors.HTTPServiceUnavailable(description)

        resp.status = falcon.HTTP_204
Beispiel #23
0
def deserialize(stream, len):
    """Deserializes JSON from a file-like stream.

    This function deserializes JSON from a stream, including
    translating read and parsing errors to HTTP error types.

    :param stream: file-like object from which to read an object or
        array of objects.
    :param len: number of bytes to read from stream
    :raises: HTTPBadRequest, HTTPServiceUnavailable
    """

    if len is None:
        description = _(u'Request body can not be empty')
        raise errors.HTTPBadRequestBody(description)

    try:
        # TODO(kgriffs): read_json should stream the resulting list
        # of messages, returning a generator rather than buffering
        # everything in memory (bp/streaming-serialization).
        return utils.read_json(stream, len)

    except utils.MalformedJSON as ex:
        LOG.debug(ex)
        description = _(u'Request body could not be parsed.')
        raise errors.HTTPBadRequestBody(description)

    except utils.OverflowedJSONInteger as ex:
        LOG.debug(ex)
        description = _(u'JSON contains integer that is too large.')
        raise errors.HTTPBadRequestBody(description)

    except Exception as ex:
        # Error while reading from the network/server
        LOG.exception(ex)
        description = _(u'Request body could not be read.')
        raise errors.HTTPServiceUnavailable(description)
Beispiel #24
0
    def on_post(self, req, resp, project_id, queue_name):
        LOG.debug(
            u'Messages collection POST - queue:  %(queue)s, '
            u'project: %(project)s', {
                'queue': queue_name,
                'project': project_id
            })

        client_uuid = wsgi_helpers.get_client_uuid(req)

        try:
            # Place JSON size restriction before parsing
            self._validate.message_length(req.content_length)
        except validation.ValidationFailed as ex:
            LOG.debug(ex)
            raise wsgi_errors.HTTPBadRequestAPI(six.text_type(ex))

        # Deserialize and validate the incoming messages
        document = wsgi_utils.deserialize(req.stream, req.content_length)

        if 'messages' not in document:
            description = _(u'No messages were found in the request body.')
            raise wsgi_errors.HTTPBadRequestAPI(description)

        messages = wsgi_utils.sanitize(document['messages'],
                                       self._message_post_spec,
                                       doctype=wsgi_utils.JSONArray)

        try:
            self._validate.message_posting(messages)

            if not self._queue_controller.exists(queue_name, project_id):
                self._queue_controller.create(queue_name, project=project_id)

            message_ids = self._message_controller.post(
                queue_name,
                messages=messages,
                project=project_id,
                client_uuid=client_uuid)

        except validation.ValidationFailed as ex:
            LOG.debug(ex)
            raise wsgi_errors.HTTPBadRequestAPI(six.text_type(ex))

        except storage_errors.DoesNotExist as ex:
            LOG.debug(ex)
            raise falcon.HTTPNotFound()

        except storage_errors.MessageConflict as ex:
            LOG.exception(ex)
            description = _(u'No messages could be enqueued.')
            raise wsgi_errors.HTTPServiceUnavailable(description)

        except Exception as ex:
            LOG.exception(ex)
            description = _(u'Messages could not be enqueued.')
            raise wsgi_errors.HTTPServiceUnavailable(description)

        # Prepare the response
        ids_value = ','.join(message_ids)
        resp.location = req.path + '?ids=' + ids_value

        hrefs = [req.path + '/' + id for id in message_ids]
        body = {'resources': hrefs}
        resp.body = utils.to_json(body)
        resp.status = falcon.HTTP_201
Beispiel #25
0
    def on_post(self, req, resp, project_id, queue_name):
        LOG.debug(
            u'Messages collection POST - queue:  %(queue)s, '
            u'project: %(project)s', {
                'queue': queue_name,
                'project': project_id
            })

        client_uuid = wsgi_utils.get_client_uuid(req)

        try:
            # Place JSON size restriction before parsing
            self._validate.message_length(req.content_length)
        except validation.ValidationFailed as ex:
            LOG.debug(ex)
            raise wsgi_errors.HTTPBadRequestAPI(six.text_type(ex))

        # Deserialize and validate the request body
        document = wsgi_utils.deserialize(req.stream, req.content_length)
        messages = wsgi_utils.sanitize(document,
                                       MESSAGE_POST_SPEC,
                                       doctype=wsgi_utils.JSONArray)

        try:
            self._validate.message_posting(messages)

            message_ids = self.message_controller.post(queue_name,
                                                       messages=messages,
                                                       project=project_id,
                                                       client_uuid=client_uuid)

        except validation.ValidationFailed as ex:
            LOG.debug(ex)
            raise wsgi_errors.HTTPBadRequestAPI(six.text_type(ex))

        except storage_errors.DoesNotExist as ex:
            LOG.debug(ex)
            raise falcon.HTTPNotFound()

        except storage_errors.MessageConflict as ex:
            LOG.exception(ex)
            message_ids = ex.succeeded_ids

            if not message_ids:
                # TODO(kgriffs): Include error code that is different
                # from the code used in the generic case, below.
                description = _(u'No messages could be enqueued.')
                raise wsgi_errors.HTTPServiceUnavailable(description)

        except Exception as ex:
            LOG.exception(ex)
            description = _(u'Messages could not be enqueued.')
            raise wsgi_errors.HTTPServiceUnavailable(description)

        # Prepare the response
        ids_value = ','.join(message_ids)
        resp.location = req.path + '?ids=' + ids_value

        hrefs = [req.path + '/' + id for id in message_ids]

        # NOTE(kgriffs): As of the Icehouse release, drivers are
        # no longer allowed to enqueue a subset of the messages
        # submitted by the client; it's all or nothing. Therefore,
        # 'partial' is now always False in the v1.0 API, and the
        # field has been removed in v1.1.
        body = {'resources': hrefs, 'partial': False}

        resp.body = utils.to_json(body)
        resp.status = falcon.HTTP_201