Python session.EngineFacade方法代码示例

# 需要导入模块: from oslo_db.sqlalchemy import session [as 别名]
# 或者: from oslo_db.sqlalchemy.session import EngineFacade [as 别名]
def _create_facade(conf_group):
    # This fragment is copied from oslo.db
    return db_session.EngineFacade(
        sql_connection=conf_group.connection,
        slave_connection=conf_group.slave_connection,
        sqlite_fk=False,
        autocommit=True,
        expire_on_commit=False,
        mysql_sql_mode=conf_group.mysql_sql_mode,
        idle_timeout=conf_group.idle_timeout,
        connection_debug=conf_group.connection_debug,
        max_pool_size=conf_group.max_pool_size,
        max_overflow=conf_group.max_overflow,
        pool_timeout=conf_group.pool_timeout,
        sqlite_synchronous=conf_group.sqlite_synchronous,
        connection_trace=conf_group.connection_trace,
        max_retries=conf_group.max_retries,
        retry_interval=conf_group.retry_interval) 

# 需要导入模块: from oslo_db.sqlalchemy import session [as 别名]
# 或者: from oslo_db.sqlalchemy.session import EngineFacade [as 别名]
def __init__(self, url):
        options = dict(CONF.database.items())
        # set retries to 0 , since reconnection is already implemented
        # in storage.__init__.get_connection_from_config function
        options['max_retries'] = 0
        # add vitrage opts to database group
        for opt in storage.OPTS:
            options.pop(opt.name, None)
        self._engine_facade = db_session.EngineFacade(self._dress_url(url),
                                                      **options)
        self._active_actions = ActiveActionsConnection(self._engine_facade)
        self._events = EventsConnection(self._engine_facade)
        self._templates = TemplatesConnection(self._engine_facade)
        self._graph_snapshots = GraphSnapshotsConnection(self._engine_facade)
        self._webhooks = WebhooksConnection(
            self._engine_facade)
        self._alarms = AlarmsConnection(
            self._engine_facade)
        self._edges = EdgesConnection(
            self._engine_facade)
        self._changes = ChangesConnection(
            self._engine_facade)
        self._history_facade = HistoryFacadeConnection(
            self._engine_facade, self._alarms, self._edges, self._changes) 

# 需要导入模块: from oslo_db.sqlalchemy import session [as 别名]
# 或者: from oslo_db.sqlalchemy.session import EngineFacade [as 别名]
def test_slave_connection(self):
        paths = self.create_tempfiles([('db.master', ''), ('db.slave', '')],
                                      ext='')
        master_path = 'sqlite:///' + paths[0]
        slave_path = 'sqlite:///' + paths[1]

        facade = session.EngineFacade(
            sql_connection=master_path,
            slave_connection=slave_path
        )

        master = facade.get_engine()
        self.assertEqual(master_path, str(master.url))
        slave = facade.get_engine(use_slave=True)
        self.assertEqual(slave_path, str(slave.url))

        master_session = facade.get_session()
        self.assertEqual(master_path, str(master_session.bind.url))
        slave_session = facade.get_session(use_slave=True)
        self.assertEqual(slave_path, str(slave_session.bind.url)) 

# 需要导入模块: from oslo_db.sqlalchemy import session [as 别名]
# 或者: from oslo_db.sqlalchemy.session import EngineFacade [as 别名]
def __init__(self, conf, url):
        # Set max_retries to 0, since oslo.db in certain cases may attempt
        # to retry making the db connection retried max_retries ^ 2 times
        # in failure case and db reconnection has already been implemented
        # in storage.__init__.get_connection_from_config function
        options = dict(conf.database.items())
        options['max_retries'] = 0
        # oslo.db doesn't support options defined by Aodh
        for opt in storage.OPTS:
            options.pop(opt.name, None)
        self._engine_facade = db_session.EngineFacade(self.dress_url(url),
                                                      **options)

        if osprofiler_sqlalchemy:
            osprofiler_sqlalchemy.add_tracing(sqlalchemy,
                                              self._engine_facade.get_engine(),
                                              'db')
        self.conf = conf 

# 需要导入模块: from oslo_db.sqlalchemy import session [as 别名]
# 或者: from oslo_db.sqlalchemy.session import EngineFacade [as 别名]
def _create_facade_lazily(cfg_group, connection=None, discriminator=None):
    connection = connection or cfg.CONF[cfg_group].connection
    cache_name = "%s:%s" % (cfg_group, discriminator)

    if cache_name not in _FACADES:
        conf = dict(cfg.CONF[cfg_group].items())
        _FACADES[cache_name] = session.EngineFacade(
            connection,
            **conf
        )

    return _FACADES[cache_name] 

# 需要导入模块: from oslo_db.sqlalchemy import session [as 别名]
# 或者: from oslo_db.sqlalchemy.session import EngineFacade [as 别名]
def get_facade():
    global _facade
    if not _facade:
        # TODO: investigate why the CONF.database.connection is None!
        # _facade = db_session.EngineFacade(CONF.database.connection)
        # _facade = db_session.EngineFacade.from_config(CONF)
        _facade = db_session.EngineFacade(
            "mysql://vdibroker:Passw0rd@localhost/vdibroker")
    return _facade 

# 需要导入模块: from oslo_db.sqlalchemy import session [as 别名]
# 或者: from oslo_db.sqlalchemy.session import EngineFacade [as 别名]
def _create_facade_lazily():
    global _FACADE
    if _FACADE is None:
        _FACADE = db_session.EngineFacade(
            CONF.database.connection,
            **dict(CONF.database))
    return _FACADE 

# 需要导入模块: from oslo_db.sqlalchemy import session [as 别名]
# 或者: from oslo_db.sqlalchemy.session import EngineFacade [as 别名]
def setUp(self):
        super(EngineFacadeTestCase, self).setUp()

        self.facade = session.EngineFacade('sqlite://') 

# 需要导入模块: from oslo_db.sqlalchemy import session [as 别名]
# 或者: from oslo_db.sqlalchemy.session import EngineFacade [as 别名]
def test_direct_invocation_deprecated_args(self):
        facade = session.EngineFacade("sqlite://", idle_timeout=59)
        self.assertEqual(59, facade.get_engine().pool._recycle) 

# 需要导入模块: from oslo_db.sqlalchemy import session [as 别名]
# 或者: from oslo_db.sqlalchemy.session import EngineFacade [as 别名]
def test_creation_from_config(self, create_engine, get_maker):
        conf = cfg.ConfigOpts()
        conf.register_opts(db_options.database_opts, group='database')

        overrides = {
            'connection': 'sqlite:///:memory:',
            'slave_connection': None,
            'connection_debug': 100,
            'max_pool_size': 10,
            'mysql_sql_mode': 'TRADITIONAL',
        }
        for optname, optvalue in overrides.items():
            conf.set_override(optname, optvalue, group='database')

        session.EngineFacade.from_config(conf,
                                         autocommit=False,
                                         expire_on_commit=True)

        create_engine.assert_called_once_with(
            sql_connection='sqlite:///:memory:',
            connection_debug=100,
            max_pool_size=10,
            mysql_sql_mode='TRADITIONAL',
            mysql_enable_ndb=False,
            sqlite_fk=False,
            connection_recycle_time=mock.ANY,
            retry_interval=mock.ANY,
            max_retries=mock.ANY,
            max_overflow=mock.ANY,
            connection_trace=mock.ANY,
            sqlite_synchronous=mock.ANY,
            pool_timeout=mock.ANY,
            thread_checkin=mock.ANY,
            json_serializer=None,
            json_deserializer=None,
            connection_parameters='',
            logging_name=mock.ANY,
        )
        get_maker.assert_called_once_with(engine=create_engine(),
                                          autocommit=False,
                                          expire_on_commit=True) 

# 需要导入模块: from oslo_db.sqlalchemy import session [as 别名]
# 或者: from oslo_db.sqlalchemy.session import EngineFacade [as 别名]
def test_slave_connection_string_not_provided(self):
        master_path = 'sqlite:///' + self.create_tempfiles(
            [('db.master', '')], ext='')[0]

        facade = session.EngineFacade(sql_connection=master_path)

        master = facade.get_engine()
        slave = facade.get_engine(use_slave=True)
        self.assertIs(master, slave)
        self.assertEqual(master_path, str(master.url))

        master_session = facade.get_session()
        self.assertEqual(master_path, str(master_session.bind.url))
        slave_session = facade.get_session(use_slave=True)
        self.assertEqual(master_path, str(slave_session.bind.url)) 

# 需要导入模块: from oslo_db.sqlalchemy import session [as 别名]
# 或者: from oslo_db.sqlalchemy.session import EngineFacade [as 别名]
def get_facade():
    global _facade
    if not _facade:
        _facade = db_session.EngineFacade(CONF.database.connection)
    return _facade 

# 需要导入模块: from oslo_db.sqlalchemy import session [as 别名]
# 或者: from oslo_db.sqlalchemy.session import EngineFacade [as 别名]
def _create_facade_lazily():
    global _LOCK
    with _LOCK:
        global _FACADE
        if _FACADE is None:
            _FACADE = db_session.EngineFacade(
                CONF.database.connection,
                **dict(CONF.database)
            )

        return _FACADE