Bases: wrapt.ObjectProxy
PluginGroup plugin group.
This wrapper returns instances of other loaded plugin groups.
In the esoteric case that you need to access the actual plugingroup class
that gives out classes instead of instances (like all other plugingroups),
request the "plugingroup" plugingroup. But usually you will not want this.
Source code in src/metador_core/plugins.py
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73 | class PGPluginGroup(wrapt.ObjectProxy):
"""PluginGroup plugin group.
This wrapper returns instances of other loaded plugin groups.
In the esoteric case that you need to access the actual plugingroup class
that gives out *classes* instead of instances (like all other plugingroups),
request the "plugingroup" plugingroup. But usually you will not want this.
"""
_self_groups: Dict[AnyPluginRef, PluginGroup]
def __reset__(self):
self._self_groups.clear()
self.__init__()
def __init__(self):
# initialize the meta-plugingroup
from .plugin.interface import _plugin_groups, create_pg
create_pg(PluginGroup)
pgpg_ref = AnyPluginRef(
group=PG_GROUP_NAME,
name=PluginGroup.Plugin.name,
version=PluginGroup.Plugin.version,
)
# wire it up with this wrapper
self._self_groups = _plugin_groups
self.__wrapped__ = _plugin_groups[pgpg_ref]
# ----
def get(self, key, version=None):
"""Get a registered plugin group by name."""
key_, vers = plugin_args(key, version)
if key_ == self.name and (vers is None or vers == self.Plugin.version):
return self
try:
if grp_cls := self.__wrapped__._get_unsafe(key_, vers):
# now if the PG was not existing, it is + is stored in _self_groups
return cast(S, self._self_groups.get(grp_cls.Plugin.ref()))
except KeyError:
return None
def __getitem__(self, key) -> PluginGroup:
# call wrapped '__getitem__' with this object to use its 'get'
return PluginGroup.__getitem__(self, key) # type: ignore
def values(self):
# same idea, this uses '__getitem__'
return PluginGroup.values(self)
def items(self):
# same idea, this uses '__getitem__'
return PluginGroup.items(self)
def is_plugin(self, obj):
return obj in self.values()
|
Source code in src/metador_core/plugins.py
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45 | def __init__(self):
# initialize the meta-plugingroup
from .plugin.interface import _plugin_groups, create_pg
create_pg(PluginGroup)
pgpg_ref = AnyPluginRef(
group=PG_GROUP_NAME,
name=PluginGroup.Plugin.name,
version=PluginGroup.Plugin.version,
)
# wire it up with this wrapper
self._self_groups = _plugin_groups
self.__wrapped__ = _plugin_groups[pgpg_ref]
|
Get a registered plugin group by name.
Source code in src/metador_core/plugins.py
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58 | def get(self, key, version=None):
"""Get a registered plugin group by name."""
key_, vers = plugin_args(key, version)
if key_ == self.name and (vers is None or vers == self.Plugin.version):
return self
try:
if grp_cls := self.__wrapped__._get_unsafe(key_, vers):
# now if the PG was not existing, it is + is stored in _self_groups
return cast(S, self._self_groups.get(grp_cls.Plugin.ref()))
except KeyError:
return None
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