Synnefo

# Copyright 2012 GRNET S.A. All rights reserved.

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from synnefo.settings import BACKEND_PREFIX_ID, DEBUG, EXCHANGE_GANETI

try:

    prefix = BACKEND_PREFIX_ID.split('-')[0]

except TypeError, IndexError:

    raise Exception("Invalid BACKEND_PREFIX_ID")

# EXCHANGES

EXCHANGES = (EXCHANGE_GANETI,)

# QUEUES

QUEUE_OP = "%s-events-op" % prefix

QUEUE_NETWORK = "%s-events-network" % prefix

QUEUE_NET = "%s-events-net" % prefix

QUEUE_PROGRESS = "%s-events-progress" % prefix

QUEUES = (QUEUE_OP,

          QUEUE_NETWORK,

          QUEUE_NET,

          QUEUE_PROGRESS)

# ROUTING KEYS

# notifications of type "ganeti-op-status"

KEY_OP = 'ganeti.%s.event.op' % prefix

# notifications of type "ganeti-network-status"

KEY_NETWORK = 'ganeti.%s.event.network' % prefix

# notifications of type "ganeti-net-status"

KEY_NET = 'ganeti.%s.event.net' % prefix

# notifications of type "ganeti-create-progress"

KEY_PROGRESS = 'ganeti.%s.event.progress' % prefix

# BINDINGS:

BINDINGS = (

# Queue             # Exchange          # RouteKey    # Handler

(QUEUE_OP,          EXCHANGE_GANETI,    KEY_OP,       'update_db'),

(QUEUE_NETWORK,     EXCHANGE_GANETI,    KEY_NETWORK,  'update_network'),

(QUEUE_NET,         EXCHANGE_GANETI,    KEY_NET,      'update_net'),

(QUEUE_PROGRESS,    EXCHANGE_GANETI,    KEY_PROGRESS, 'update_build_progress'),

)

## Extra for DEBUG:

if DEBUG is True:

    # Debug queue, retrieves all messages

    QUEUE_DEBUG = "%s-debug" % prefix

    QUEUES += (QUEUE_DEBUG,)

    BINDINGS += ((QUEUE_DEBUG, EXCHANGE_GANETI, "#", "dummy_proc"),)

def convert_queue_to_dead(queue):

    """Convert the name of a queue to the corresponding dead-letter one"""

    return queue + "-dl"

def convert_exchange_to_dead(exchange):

    """Convert the name of an exchange to the corresponding dead-letter one"""

    return exchange + "-dl"