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All rights reserved.

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"""
A registry for lookup apis, so that they can be managed, cached, etc.
"""

from typing import Dict, Optional

[docs]
class LookupApiRegistry:
"""HERE platform lookup api registry."""

def init(self):
"""Instantiate HERE platform schema registry."""
self._resource_registry =

[docs]
def register(self, catalog_hrn: str, resources_apis: dict):
"""Register a new resource lookup api for a given hrn."""
self._resource_registry[catalog_hrn] = resources_apis

[docs]
def has_resources_apis(self, catalog_hrn: str) -> bool:
"""
Check whether a given schema has already been registered.

:param catalog_hrn: Catalog HRN
:return: a bool flag indicating if schema is already registered.
"""
result: bool = catalog_hrn in self._resource_registry
return result

[docs]
def resources_apis(self, catalog_hrn: str) -> Optional[Dict]:
"""
Return a schema by the provided schema HRN identifier.

:param catalog_hrn: Catalog HRN
:return: Schema instance for the given hrn.
"""
if self.has_resources_apis(catalog_hrn):
resource_registry: dict = self._resource_registry[catalog_hrn]
return resource_registry
else:
return None