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Add finalizer to Connection #242

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merged 1 commit into from
Oct 22, 2024
Merged

Add finalizer to Connection #242

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7 changes: 6 additions & 1 deletion python/hsml/connection.py
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,7 @@
#

import os
import weakref

from hsml import client
from hsml.core import model_api, model_registry_api, model_serving_api
Expand Down Expand Up @@ -165,6 +166,7 @@ def connect(self):
```
"""
self._connected = True
finalizer = weakref.finalize(self, self.close)
try:
# init client
if client.hopsworks.base.Client.REST_ENDPOINT not in os.environ:
Expand All @@ -185,6 +187,7 @@ def connect(self):
self._model_serving_api.load_default_configuration() # istio client, default resources,...
except (TypeError, ConnectionError):
self._connected = False
finalizer.detach()
raise
print("Connected. Call `.close()` to terminate connection gracefully.")

Expand All @@ -194,8 +197,10 @@ def close(self):
This will clean up any materialized certificates on the local file system of
external environments.

Usage is recommended but optional.
Usage is optional.
"""
if not self._connected:
return # the connection is already closed
client.stop()
self._model_api = None
self._connected = False
Expand Down