def construct_index(cls, opts, bases):
i = None
if opts is None:
# Inherit Index from base classes
for b in bases:
if getattr(b, "_index", DEFAULT_INDEX) is not DEFAULT_INDEX:
parent_index = b._index
i = Index(
parent_index._name,
doc_type=parent_index._mapping.doc_type,
using=parent_index._using,
)
i._settings = parent_index._settings.copy()
i._aliases = parent_index._aliases.copy()
i._analysis = parent_index._analysis.copy()
i._doc_types = parent_index._doc_types[:]
break
if i is None:
i = Index(
getattr(opts, "name", "*"),
doc_type=getattr(opts, "doc_type", "doc"),
using=getattr(opts, "using", "default"),
)
i.settings(**getattr(opts, "settings", {}))
i.aliases(**getattr(opts, "aliases", {}))
for a in getattr(opts, "analyzers", ()):
i.analyzer(a)
return i
