Files
galaxy-integrations-python-api/src/galaxy/api/importer.py
2020-09-16 13:33:17 +02:00

103 lines
3.4 KiB
Python

import asyncio
import logging
from galaxy.api.jsonrpc import ApplicationError
from galaxy.api.errors import ImportInProgress, UnknownError
logger = logging.getLogger(__name__)
class Importer:
def __init__(
self,
task_manger,
name,
get,
prepare_context,
notification_success,
notification_failure,
notification_finished,
complete,
):
self._task_manager = task_manger
self._name = name
self._get = get
self._prepare_context = prepare_context
self._notification_success = notification_success
self._notification_failure = notification_failure
self._notification_finished = notification_finished
self._complete = complete
self._import_in_progress = False
async def _import_element(self, id_, context_):
try:
element = await self._get(id_, context_)
self._notification_success(id_, element)
except ApplicationError as error:
self._notification_failure(id_, error)
except asyncio.CancelledError:
pass
except Exception:
logger.exception("Unexpected exception raised in %s importer", self._name)
self._notification_failure(id_, UnknownError())
async def _import_elements(self, ids_, context_):
try:
imports = [self._import_element(id_, context_) for id_ in ids_]
await asyncio.gather(*imports)
self._notification_finished()
self._complete()
except asyncio.CancelledError:
logger.debug("Importing %s cancelled", self._name)
finally:
self._import_in_progress = False
async def start(self, ids):
if self._import_in_progress:
raise ImportInProgress()
self._import_in_progress = True
try:
context = await self._prepare_context(ids)
self._task_manager.create_task(
self._import_elements(ids, context),
"{} import".format(self._name),
handle_exceptions=False
)
except:
self._import_in_progress = False
raise
class CollectionImporter(Importer):
def __init__(self, notification_partially_finished, *args):
super().__init__(*args)
self._notification_partially_finished = notification_partially_finished
async def _import_element(self, id_, context_):
try:
async for element in self._get(id_, context_):
self._notification_success(id_, element)
except ApplicationError as error:
self._notification_failure(id_, error)
except asyncio.CancelledError:
pass
except Exception:
logger.exception("Unexpected exception raised in %s importer", self._name)
self._notification_failure(id_, UnknownError())
finally:
self._notification_partially_finished(id_)
class SynchroneousImporter(Importer):
async def _import_elements(self, ids_, context_):
try:
for id_ in ids_:
await self._import_element(id_, context_)
self._notification_finished()
self._complete()
except asyncio.CancelledError:
logger.debug("Importing %s cancelled", self._name)
finally:
self._import_in_progress = False