def search(provider_id, generic_filters, meta_filters, skip_store):
"""Return information on existing machine(s).
"""
provider = _retrieve_provider(provider_id)
if not skip_store:
if generic_filters or meta_filters:
raise ConfigurationError(
"Filters are only supported when the 'skip_store' option "
"is set.")
machines = Machine.machines(provider.provider_id)
else:
generic_filters, meta_filters = \
_preprocess_filters(generic_filters, meta_filters)
manager = provider.get_provider_machine()
if issubclass(manager, AbstractDatabaseManager):
meta_filters = {}
manager = _retrieve_database_manager(provider_id)
elif issubclass(manager, AbstractMachineManager):
manager = _retrieve_machine_manager(provider_id)
machines = manager.search(generic_filters, meta_filters)
rset = ResultSet(names=('uuid', 'provider_id', 'av_zone', 'addresses'),
types=(str, str, str, str))
for machine in machines:
row = (str(machine.uuid), machine.provider_id, machine.av_zone,
machine.addresses)
rset.append_row(row)
return CommandResult(None, results=rset)
def execute(self,
provider_id,
generic_filters=None,
meta_filters=None,
skip_store=False):
"""Return information on existing machine(s).
:param provider_id: Provider's Id.
:param generic_filters: Filter returned machines by some properites
but metadata properties.
:param meta_filters: Filter returned machines by metadata properties.
:param skip_store: Proceed anyway if there is no information on
the machine in the state store. Default is False.
"""
rset = ResultSet(names=('uuid', 'provider_id', 'av_zone', 'addresses'),
types=(str, str, str, str))
if not skip_store:
if generic_filters or meta_filters:
raise _errors.ConfigurationError(
"Filters are only supported when the 'skip_store' option "
"is set.")
provider = _retrieve_provider(provider_id)
for mc in Machine.machines(provider.provider_id):
rset.append_row(
(str(mc.uuid), mc.provider_id, mc.av_zone, mc.addresses))
else:
generic_filters, meta_filters = \
_preprocess_filters(generic_filters, meta_filters)
manager = _retrieve_manager(provider_id)
for mc in manager.search_machines(generic_filters, meta_filters):
rset.append_row(
(str(mc.uuid), mc.provider_id, mc.av_zone, mc.addresses))
return CommandResult(None, results=rset)
def _retrieve_database_manager(provider_id):
"""Retrive machine manager for a provider.
"""
provider = _retrieve_provider(provider_id)
DatabaseManager = provider.get_provider_machine()
if not issubclass(DatabaseManager, AbstractDatabaseManager):
raise ConfigurationError(
"Provider (%s) does not allow to manage machine databases "
"directly." % (provider_id, ))
return DatabaseManager(provider)
def _retrieve_snapshot_manager(provider_id):
"""Retrive snapshot manager for a provider.
"""
provider = _retrieve_provider(provider_id)
SnapshotManager = provider.get_provider_snapshot()
if not issubclass(SnapshotManager, AbstractSnapshotManager):
raise ConfigurationError(
"Provider (%s) does not allow to manage machine snapshots "
"directly." % (provider_id, ))
return SnapshotManager(provider)
def _retrieve_database_manager(provider_id):
"""Retrive machine manager for a provider.
"""
provider = _retrieve_provider(provider_id)
DatabaseManager = provider.get_provider_machine()
if not issubclass(DatabaseManager, AbstractDatabaseManager):
raise ConfigurationError(
"Provider (%s) does not allow to manage machine databases "
"directly." % (provider_id, )
)
return DatabaseManager(provider)
def _retrieve_snapshot_manager(provider_id):
"""Retrive snapshot manager for a provider.
"""
provider = _retrieve_provider(provider_id)
SnapshotManager = provider.get_provider_snapshot()
if not issubclass(SnapshotManager, AbstractSnapshotManager):
raise ConfigurationError(
"Provider (%s) does not allow to manage machine snapshots "
"directly." % (provider_id, )
)
return SnapshotManager(provider)
def _decide_destroy_event(provider_id):
"""Decide whether it should call a machine or a database provider.
"""
provider = _retrieve_provider(provider_id)
manager = provider.get_provider_machine()
if issubclass(manager, AbstractMachineManager):
return 'DESTROY_MACHINE'
elif issubclass(manager, AbstractDatabaseManager):
return 'DESTROY_DATABASE'
assert False
def _decide_destroy_event(provider_id):
"""Decide whether it should call a machine or a database provider.
"""
provider = _retrieve_provider(provider_id)
manager = provider.get_provider_machine()
if issubclass(manager, AbstractMachineManager):
return 'DESTROY_MACHINE'
elif issubclass(manager, AbstractDatabaseManager):
return 'DESTROY_DATABASE'
assert False
def search(provider_id, generic_filters, meta_filters, skip_store):
"""Return information on existing machine(s).
"""
provider = _retrieve_provider(provider_id)
if not skip_store:
if generic_filters or meta_filters:
raise ConfigurationError(
"Filters are only supported when the 'skip_store' option "
"is set."
)
machines = Machine.machines(provider.provider_id)
else:
generic_filters, meta_filters = \
_preprocess_filters(generic_filters, meta_filters)
manager = provider.get_provider_machine()
if issubclass(manager, AbstractDatabaseManager):
meta_filters = {}
manager = _retrieve_database_manager(provider_id)
elif issubclass(manager, AbstractMachineManager):
manager = _retrieve_machine_manager(provider_id)
machines = manager.search(generic_filters, meta_filters)
rset = ResultSet(
names=('uuid', 'provider_id', 'av_zone', 'addresses'),
types=(str, str, str, str)
)
for machine in machines:
row = (
str(machine.uuid), machine.provider_id, machine.av_zone,
machine.addresses
)
rset.append_row(row)
return CommandResult(None, results=rset)
def _retrieve_manager(provider_id):
"""Retrive the manager for a provider.
"""
provider = _retrieve_provider(provider_id)
MachineManager = provider.get_provider_manager()
return MachineManager(provider)
