def describe_provider_process(request):
# type: (Request) -> Process
"""
Obtains a remote service process description in a compatible local process format.
Note: this processes won't be stored to the local process storage.
"""
provider_id = request.matchdict.get("provider_id")
process_id = request.matchdict.get("process_id")
store = get_db(request).get_store(StoreServices)
service = store.fetch_by_name(provider_id)
# FIXME: support other providers (https://github.com/crim-ca/weaver/issues/130)
wps = get_wps_client(service.url, request)
process = wps.describeprocess(process_id)
return Process.convert(process, service, get_settings(request))
def _add_process(self, process, upsert=False):
# type: (AnyProcess, bool) -> None
"""
Stores the specified process to the database.
The operation assumes that any conflicting or duplicate process definition was pre-validated.
Parameter ``upsert=True`` can be employed to allow exact replacement and ignoring duplicate errors.
When using ``upsert=True``, it is assumed that whichever the result (insert, update, duplicate error)
arises, the final result of the stored process should be identical in each case.
.. note::
Parameter ``upsert=True`` is useful for initialization-time of the storage with default processes that
can sporadically generate clashing-inserts between multi-threaded/workers applications that all try adding
builtin processes around the same moment.
"""
new_process = Process.convert(
process, processEndpointWPS1=self.default_wps_endpoint)
if not isinstance(new_process, Process):
raise ProcessInstanceError("Unsupported process type '{}'".format(
type(process)))
# apply defaults if not specified
new_process["type"] = self._get_process_type(new_process)
new_process["identifier"] = self._get_process_id(new_process)
new_process["processEndpointWPS1"] = self._get_process_endpoint_wps1(
new_process)
new_process["visibility"] = new_process.visibility
if upsert:
search = {"identifier": new_process["identifier"]}
try:
result = self.collection.replace_one(search,
new_process.params(),
upsert=True)
if result.matched_count != 0 and result.modified_count != 0:
LOGGER.warning(
"Duplicate key in collection: %s index: %s "
"was detected during replace with upsert, but permitted for process without modification.",
self.collection.full_name, search)
except DuplicateKeyError:
LOGGER.warning(
"Duplicate key in collection: %s index: %s "
"was detected during internal insert retry, but ignored for process without modification.",
self.collection.full_name, search)
else:
self.collection.insert_one(new_process.params())