| # Licensed to the Apache Software Foundation (ASF) under one or more |
| # contributor license agreements. See the NOTICE file distributed with |
| # this work for additional information regarding copyright ownership. |
| # The ASF licenses this file to You under the Apache License, Version 2.0 |
| # (the "License"); you may not use this file except in compliance with |
| # the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| """ |
| Environment (private) |
| """ |
| |
| import os |
| import shutil |
| |
| from .config import config |
| from .logger import Logging |
| from .. import (application_model_storage, application_resource_storage) |
| from ..orchestrator.plugin import PluginManager |
| from ..storage.sql_mapi import SQLAlchemyModelAPI |
| from ..storage.filesystem_rapi import FileSystemResourceAPI |
| |
| |
| ARIA_DEFAULT_WORKDIR_NAME = '.aria' |
| |
| |
| class _Environment(object): |
| |
| def __init__(self, workdir): |
| |
| self._workdir = workdir |
| self._init_workdir() |
| |
| self._config = config.CliConfig.create_config(workdir) |
| self._logging = Logging(self._config) |
| |
| self._model_storage_dir = os.path.join(workdir, 'models') |
| self._resource_storage_dir = os.path.join(workdir, 'resources') |
| self._plugins_dir = os.path.join(workdir, 'plugins') |
| |
| # initialized lazily |
| self._model_storage = None |
| self._resource_storage = None |
| self._plugin_manager = None |
| |
| @property |
| def workdir(self): |
| return self._workdir |
| |
| @property |
| def config(self): |
| return self._config |
| |
| @property |
| def logging(self): |
| return self._logging |
| |
| @property |
| def model_storage(self): |
| if not self._model_storage: |
| self._model_storage = self._init_sqlite_model_storage() |
| return self._model_storage |
| |
| @property |
| def resource_storage(self): |
| if not self._resource_storage: |
| self._resource_storage = self._init_fs_resource_storage() |
| return self._resource_storage |
| |
| @property |
| def plugin_manager(self): |
| if not self._plugin_manager: |
| self._plugin_manager = self._init_plugin_manager() |
| return self._plugin_manager |
| |
| def reset(self, reset_config): |
| if reset_config: |
| shutil.rmtree(self._workdir) |
| else: |
| _, dirs, files = next(os.walk(self._workdir)) |
| files.remove(config.CONFIG_FILE_NAME) |
| |
| for dir_ in dirs: |
| shutil.rmtree(os.path.join(self._workdir, dir_)) |
| for file_ in files: |
| os.remove(os.path.join(self._workdir, file_)) |
| |
| def _init_workdir(self): |
| if not os.path.exists(self._workdir): |
| os.makedirs(self._workdir) |
| |
| def _init_sqlite_model_storage(self): |
| if not os.path.exists(self._model_storage_dir): |
| os.makedirs(self._model_storage_dir) |
| |
| initiator_kwargs = dict(base_dir=self._model_storage_dir) |
| return application_model_storage( |
| SQLAlchemyModelAPI, |
| initiator_kwargs=initiator_kwargs) |
| |
| def _init_fs_resource_storage(self): |
| if not os.path.exists(self._resource_storage_dir): |
| os.makedirs(self._resource_storage_dir) |
| |
| fs_kwargs = dict(directory=self._resource_storage_dir) |
| return application_resource_storage( |
| FileSystemResourceAPI, |
| api_kwargs=fs_kwargs) |
| |
| def _init_plugin_manager(self): |
| if not os.path.exists(self._plugins_dir): |
| os.makedirs(self._plugins_dir) |
| |
| return PluginManager(self.model_storage, self._plugins_dir) |
| |
| |
| env = _Environment(os.path.join( |
| os.environ.get('ARIA_WORKDIR', os.path.expanduser('~')), ARIA_DEFAULT_WORKDIR_NAME)) |
| |
| logger = env.logging.logger |