ossdbtoolsservice/query_execution/query_execution_service.py [177:190]:
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        try:
            conn = self._get_connection(params.owner_uri, ConnectionType.QUERY)
        except Exception as e:
            if self._service_provider.logger is not None:
                self._service_provider.logger.exception(
                    'Encountered exception while handling query request')  # TODO: Localize
            request_context.send_unhandled_error_response(e)
            return

        worker_args = ExecuteRequestWorkerArgs(params.owner_uri, conn, request_context, ResultSetStorageType.FILE_STORAGE, before_query_initialize,
                                               on_batch_start, on_message_notification, on_resultset_complete,
                                               on_batch_complete, on_query_complete)

        self._start_query_execution_thread(request_context, params, worker_args)
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ossdbtoolsservice/query_execution/query_execution_service.py [217:230]:
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        try:
            conn = self._get_connection(params.owner_uri, ConnectionType.QUERY)
        except Exception as e:
            if self._service_provider.logger is not None:
                self._service_provider.logger.exception(
                    'Encountered exception while handling query request')  # TODO: Localize
            request_context.send_unhandled_error_response(e)
            return

        worker_args = ExecuteRequestWorkerArgs(params.owner_uri, conn, request_context, ResultSetStorageType.FILE_STORAGE, before_query_initialize,
                                               on_batch_start, on_message_notification, on_resultset_complete,
                                               on_batch_complete, on_query_complete)

        self._start_query_execution_thread(request_context, params, worker_args)
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