c780569e8c
oslo.messaging is exposing a new API allow creating listener by supplying a pool name, then the listeners with that pool name will use the queue name as the pool name, multiple listeners can be listening with the same topic. Change-Id: I220d50fad8cda6f6f50f31215a7a6b98523c35dc Closes-Bug: #1388663
181 lines
6.4 KiB
Python
181 lines
6.4 KiB
Python
# Copyright 2013 IBM Corp.
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"""
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Module to contain all of the PowerVC routines
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"""
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'''
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Created on Aug 1, 2013
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@author: John Kasperski
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'''
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from neutron.openstack.common import log as logging
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from powervc.common.constants import POWERVC_OS
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from powervc.common.gettextutils import _
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from powervc.neutron.client import neutron_client_bindings
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from powervc.neutron.common import constants
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from powervc.neutron.common import utils
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from powervc.neutron.db import powervc_db_v2
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from powervc.common import config as cfg
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from powervc.common import messaging
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LOG = logging.getLogger(__name__)
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class Client(neutron_client_bindings.Client):
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"""PowerVC access methods"""
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def __init__(self, client, agent):
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if not client:
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return
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self.os = POWERVC_OS
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self.db = powervc_db_v2.PowerVCAgentDB()
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self.agent = agent
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super(Client, self).__init__(client, self.os)
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self._create_amqp_listeners()
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def _create_amqp_listeners(self):
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"""Listen for AMQP messages from PowerVC."""
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LOG.debug("Entry _create_amqp_listeners(pvc) method")
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endpoint = messaging.NotificationEndpoint(log=LOG)
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endpoint.register_handler(constants.EVENT_NETWORK_CREATE,
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self._handle_network_create)
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endpoint.register_handler(constants.EVENT_NETWORK_UPDATE,
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self._handle_network_update)
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endpoint.register_handler(constants.EVENT_NETWORK_DELETE,
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self._handle_network_delete)
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endpoint.register_handler(constants.EVENT_SUBNET_CREATE,
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self._handle_subnet_create)
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endpoint.register_handler(constants.EVENT_SUBNET_UPDATE,
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self._handle_subnet_update)
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endpoint.register_handler(constants.EVENT_SUBNET_DELETE,
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self._handle_subnet_delete)
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endpoint.register_handler(constants.EVENT_PORT_CREATE,
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self._handle_port_create)
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endpoint.register_handler(constants.EVENT_PORT_UPDATE,
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self._handle_port_update)
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endpoint.register_handler(constants.EVENT_PORT_DELETE,
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self._handle_port_delete)
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endpoints = [
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endpoint,
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]
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LOG.debug("Starting to listen...... ")
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messaging.start_listener(cfg.AMQP_POWERVC_CONF,
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constants.AMQP_EXCHANGE,
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constants.AMQP_TOPIC,
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endpoints)
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LOG.debug("Exit _create_amqp_listeners(pvc) method")
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def _handle_network_create(self,
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context=None,
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ctxt=None,
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event_type=None,
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payload=None):
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network = payload.get('network')
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network_id = network.get('id')
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if not utils.is_network_mappable(network):
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LOG.info(_("Network %s is not mappable"), network_id)
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return
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db_net = self.db.get_network(pvc_id=network_id)
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if db_net:
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LOG.info(_("DB entry for network %s already exists"), network_id)
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return
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self.agent.queue_event(self.os, event_type, network)
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def _handle_network_update(self,
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context=None,
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ctxt=None,
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event_type=None,
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payload=None):
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network = payload.get('network')
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self.agent.queue_event(self.os, event_type, network)
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def _handle_network_delete(self,
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context=None,
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ctxt=None,
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event_type=None,
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payload=None):
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network_id = payload.get('network_id')
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self.agent.queue_event(self.os, event_type, network_id)
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def _handle_subnet_create(self,
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context=None,
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ctxt=None,
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event_type=None,
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payload=None):
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subnet = payload.get('subnet')
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subnet_id = subnet.get('id')
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if not utils.is_subnet_mappable(subnet):
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LOG.info(_("Subnet %s is not mappable"), subnet_id)
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return
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db_sub = self.db.get_subnet(pvc_id=subnet_id)
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if db_sub:
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LOG.info(_("DB entry for subnet %s already exists"), subnet_id)
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return
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self.agent.queue_event(self.os, event_type, subnet)
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def _handle_subnet_update(self,
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context=None,
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ctxt=None,
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event_type=None,
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payload=None):
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subnet = payload.get('subnet')
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self.agent.queue_event(self.os, event_type, subnet)
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def _handle_subnet_delete(self,
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context=None,
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ctxt=None,
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event_type=None,
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payload=None):
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subnet_id = payload.get('subnet_id')
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self.agent.queue_event(self.os, event_type, subnet_id)
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def _handle_port_create(self,
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context=None,
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ctxt=None,
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event_type=None,
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payload=None):
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port = payload.get('port')
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port_id = port.get('id')
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if not utils.is_port_mappable(port):
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LOG.info(_("Port %s is not mappable"), port_id)
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return
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db_port = self.db.get_port(pvc_id=port_id)
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if db_port:
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LOG.info(_("DB entry for port %s already exists"), port_id)
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return
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self.agent.queue_event(self.os, event_type, port)
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def _handle_port_update(self,
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context=None,
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ctxt=None,
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event_type=None,
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payload=None):
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port = payload.get('port')
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self.agent.queue_event(self.os, event_type, port)
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def _handle_port_delete(self,
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context=None,
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ctxt=None,
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event_type=None,
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payload=None):
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port_id = payload.get('port_id')
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self.agent.queue_event(self.os, event_type, port_id)
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