# Copyright (c) 2020, MD2K Center of Excellence
# - Nasir Ali <nasir.ali08@gmail.com>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice, this
# list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
import sqlalchemy as db
from sqlalchemy_utils import create_database, database_exists
from cerebralcortex.core.data_manager.sql import Base
from cerebralcortex.core.data_manager.sql.stream_handler import StreamHandler
from cerebralcortex.core.data_manager.sql.users_handler import UserHandler
from cerebralcortex.core.log_manager.log_handler import LogTypes
[docs]class SqlData(StreamHandler, UserHandler):
def __init__(self, CC):
"""
Constructor
Args:
CC (CerebralCortex): CerebralCortex object reference
Raises:
Exception: if none MySQL SQL storage is set in cerebralcortex configurations
"""
if isinstance(CC, dict):
self.config = CC
# self.study_name = self.config["study_name"]
# self.new_study = self.config["new_study"]
else:
self.config = CC.config
self.study_name = CC.study_name
self.new_study = CC.new_study
self.logtypes = LogTypes()
self.sql_store = self.config["relational_storage"]
if self.sql_store =="mysql":
self.hostIP = self.config['mysql']['host']
self.hostPort = self.config['mysql']['port']
self.database = self.config['mysql']['database']
self.dbUser = self.config['mysql']['db_user']
self.dbPassword = self.config['mysql']['db_pass']
url = 'mysql+mysqlconnector://{0}:{1}@{2}:{3}/{4}'.format(self.dbUser, self.dbPassword, self.hostIP, self.hostPort, self.database)
elif self.sql_store == "sqlite":
database_file_path = self.config["sqlite"]["file_path"]
if database_file_path[:-1]!="/":
database_file_path = database_file_path+"/"
url = 'sqlite:///{0}cc_kernel_database.db'.format(database_file_path)
else:
raise Exception(self.sql_store + ": SQL storage is not supported. Please install and configure MySQL or sqlite.")
engine = db.create_engine(url)
if not database_exists(url):
create_database(url)
Base.metadata.create_all(engine)
Session = db.orm.sessionmaker()
Session.configure(bind=engine)
self.session = Session()