|
| 1 | +import importlib |
| 2 | +from concurrent.futures import ThreadPoolExecutor |
| 3 | +from utils import Database, Data, Metadata, ObjectStorage |
| 4 | +from constants import Constants |
| 5 | + |
| 6 | + |
| 7 | +class Parameters: |
| 8 | + __DATASET_KEY_CHARACTER = "$" |
| 9 | + __DATASET_WITH_OBJECT_KEY_CHARACTER = "." |
| 10 | + __REMOVE_KEY_CHARACTER = "" |
| 11 | + |
| 12 | + def __init__(self, database: Database, data: Data): |
| 13 | + self.__database_connector = database |
| 14 | + self.__data = data |
| 15 | + |
| 16 | + def treat(self, method_parameters: dict) -> dict: |
| 17 | + parameters = method_parameters.copy() |
| 18 | + |
| 19 | + for name, value in parameters.items(): |
| 20 | + if self.__is_dataset(value): |
| 21 | + dataset_name = self.__get_dataset_name_from_value( |
| 22 | + value) |
| 23 | + if self.__has_dot_in_dataset_name(value): |
| 24 | + object_name = self.__get_name_after_dot_from_value(value) |
| 25 | + |
| 26 | + parameters[name] = self.__data.get_object_from_dataset( |
| 27 | + dataset_name, object_name) |
| 28 | + |
| 29 | + else: |
| 30 | + parameters[name] = self.__data.get_dataset_content( |
| 31 | + dataset_name) |
| 32 | + |
| 33 | + return parameters |
| 34 | + |
| 35 | + def __is_dataset(self, value: str) -> bool: |
| 36 | + return self.__DATASET_KEY_CHARACTER in value |
| 37 | + |
| 38 | + def __get_dataset_name_from_value(self, value: str) -> str: |
| 39 | + dataset_name = value.replace(self.__DATASET_KEY_CHARACTER, |
| 40 | + self.__REMOVE_KEY_CHARACTER) |
| 41 | + return dataset_name.split(self.__DATASET_WITH_OBJECT_KEY_CHARACTER)[ |
| 42 | + Constants.FIRST_ARGUMENT] |
| 43 | + |
| 44 | + def __has_dot_in_dataset_name(self, dataset_name: str) -> bool: |
| 45 | + return self.__DATASET_WITH_OBJECT_KEY_CHARACTER in dataset_name |
| 46 | + |
| 47 | + def __get_name_after_dot_from_value(self, value: str) -> str: |
| 48 | + return value.split( |
| 49 | + self.__DATASET_WITH_OBJECT_KEY_CHARACTER)[Constants.SECOND_ARGUMENT] |
| 50 | + |
| 51 | + |
| 52 | +class Execution: |
| 53 | + __DATASET_KEY_CHARACTER = "$" |
| 54 | + __REMOVE_KEY_CHARACTER = "" |
| 55 | + |
| 56 | + def __init__(self, |
| 57 | + database_connector: Database, |
| 58 | + executor_name: str, |
| 59 | + executor_service_type: str, |
| 60 | + parent_name: str, |
| 61 | + parent_name_service_type: str, |
| 62 | + metadata_creator: Metadata, |
| 63 | + class_method: str, |
| 64 | + parameters_handler: Parameters, |
| 65 | + storage: ObjectStorage, |
| 66 | + ): |
| 67 | + self.__metadata_creator = metadata_creator |
| 68 | + self.__thread_pool = ThreadPoolExecutor() |
| 69 | + self.__database_connector = database_connector |
| 70 | + self.__storage = storage |
| 71 | + self.__parameters_handler = parameters_handler |
| 72 | + self.executor_name = executor_name |
| 73 | + self.parent_name = parent_name |
| 74 | + self.class_method = class_method |
| 75 | + self.executor_service_type = executor_service_type |
| 76 | + self.parent_name_service_type = parent_name_service_type |
| 77 | + |
| 78 | + def create(self, |
| 79 | + module_path: str, |
| 80 | + class_name: str, |
| 81 | + method_parameters: dict, |
| 82 | + description: str) -> None: |
| 83 | + |
| 84 | + self.__metadata_creator.create_file(self.parent_name, |
| 85 | + self.executor_name, |
| 86 | + module_path, |
| 87 | + class_name, |
| 88 | + self.class_method, |
| 89 | + self.executor_service_type) |
| 90 | + |
| 91 | + self.__thread_pool.submit(self.__pipeline, |
| 92 | + module_path, |
| 93 | + method_parameters, |
| 94 | + description) |
| 95 | + |
| 96 | + def update(self, |
| 97 | + module_path: str, |
| 98 | + method_parameters: dict, |
| 99 | + description: str) -> None: |
| 100 | + self.__metadata_creator.update_finished_flag(self.executor_name, False) |
| 101 | + |
| 102 | + self.__thread_pool.submit(self.__pipeline, |
| 103 | + module_path, |
| 104 | + method_parameters, |
| 105 | + description) |
| 106 | + |
| 107 | + def __pipeline(self, |
| 108 | + module_path: str, |
| 109 | + method_parameters: dict, |
| 110 | + description: str) -> None: |
| 111 | + try: |
| 112 | + importlib.import_module(module_path) |
| 113 | + model_instance = self.__storage.read(self.parent_name, |
| 114 | + self.parent_name_service_type) |
| 115 | + method_result = self.__execute_a_object_method(model_instance, |
| 116 | + self.class_method, |
| 117 | + method_parameters) |
| 118 | + self.__storage.save(method_result, self.executor_name, |
| 119 | + self.executor_service_type) |
| 120 | + self.__metadata_creator.update_finished_flag(self.executor_name, |
| 121 | + flag=True) |
| 122 | + |
| 123 | + except Exception as exception: |
| 124 | + self.__metadata_creator.create_execution_document( |
| 125 | + self.executor_name, |
| 126 | + description, |
| 127 | + method_parameters, |
| 128 | + repr(exception)) |
| 129 | + return None |
| 130 | + |
| 131 | + self.__metadata_creator.create_execution_document(self.executor_name, |
| 132 | + description, |
| 133 | + method_parameters, |
| 134 | + ) |
| 135 | + |
| 136 | + def __execute_a_object_method(self, class_instance: object, method: str, |
| 137 | + parameters: dict) -> object: |
| 138 | + model_method = getattr(class_instance, method) |
| 139 | + |
| 140 | + treated_parameters = self.__parameters_handler.treat(parameters) |
| 141 | + return model_method(**treated_parameters) |
0 commit comments