Source code for tvb.interfaces.rest.server.facades.operation_facade

# -*- coding: utf-8 -*-
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import os

from tvb.basic.logger.builder import get_logger
from tvb.core.adapters.abcadapter import ABCAdapter
from tvb.core.adapters.abcuploader import ABCUploader
from tvb.core.neocom import h5
from tvb.core.neotraits.h5 import ViewModelH5
from tvb.core.services.algorithm_service import AlgorithmService
from tvb.core.services.exceptions import ProjectServiceException
from tvb.core.services.operation_service import OperationService
from tvb.core.services.project_service import ProjectService
from tvb.core.services.user_service import UserService
from tvb.interfaces.rest.commons.dtos import DataTypeDto
from tvb.interfaces.rest.commons.exceptions import InvalidIdentifierException, ServiceException
from tvb.interfaces.rest.commons.files_helper import create_temp_folder, save_temporary_file


[docs] class OperationFacade: def __init__(self): self.logger = get_logger(self.__class__.__module__) self.operation_service = OperationService() self.project_service = ProjectService() self.user_service = UserService()
[docs] @staticmethod def get_operation_status(operation_gid): operation = ProjectService.load_operation_by_gid(operation_gid) if operation is None: get_logger().warning("Invalid operation GID: {}".format(operation_gid)) raise InvalidIdentifierException() return operation.status
[docs] @staticmethod def get_operations_results(operation_gid): operation = ProjectService.load_operation_lazy_by_gid(operation_gid) if operation is None: get_logger().warning("Invalid operation GID: {}".format(operation_gid)) raise InvalidIdentifierException() data_types = ProjectService.get_results_for_operation(operation.id) if data_types is None: return [] return [DataTypeDto(datatype) for datatype in data_types]
[docs] def launch_operation(self, current_user_id, model_file, project_gid, algorithm_module, algorithm_classname, fetch_file): temp_folder = create_temp_folder() model_h5_path = save_temporary_file(model_file, temp_folder) try: project = self.project_service.find_project_lazy_by_gid(project_gid) except ProjectServiceException: raise InvalidIdentifierException() try: algorithm = AlgorithmService.get_algorithm_by_module_and_class(algorithm_module, algorithm_classname) if algorithm is None: raise InvalidIdentifierException( 'No algorithm found for: %s.%s' % (algorithm_module, algorithm_classname)) adapter_instance = ABCAdapter.build_adapter(algorithm) view_model = h5.load_view_model_from_file(model_h5_path) if isinstance(adapter_instance, ABCUploader): with ViewModelH5(model_h5_path, view_model) as view_model_h5: for key, value in adapter_instance.get_form_class().get_upload_information().items(): data_file = fetch_file(request_file_key=key, file_extension=value) data_file_path = save_temporary_file(data_file, temp_folder) view_model_h5.store_metadata_param(key, data_file_path) view_model = h5.load_view_model_from_file(model_h5_path) operation = self.operation_service.prepare_operation(current_user_id, project, algorithm, view_model=view_model) if os.path.exists(model_h5_path): os.remove(model_h5_path) OperationService().launch_operation(operation.id, True) return operation.gid except Exception as excep: self.logger.error(excep, exc_info=True) raise ServiceException(str(excep))