sqlite_recorder.py 文件源码

def record_metadata_system(self, recording_requester):
        """
        Record system metadata.

        Parameters
        ----------
        recording_requester: <System>
            The System that would like to record its metadata.
        """
        # Cannot handle PETScVector yet
        from openmdao.api import PETScVector
        if PETScVector and isinstance(recording_requester._outputs, PETScVector):
            return  # Cannot handle PETScVector yet

        # collect scaling arrays
        scaling_vecs = {}
        for kind, odict in iteritems(recording_requester._vectors):
            scaling_vecs[kind] = scaling = {}
            for vecname, vec in iteritems(odict):
                scaling[vecname] = vec._scaling
        scaling_factors = pickle.dumps(scaling_vecs,
                                       pickle.HIGHEST_PROTOCOL)
        path = recording_requester.pathname
        if not path:
            path = 'root'
        with self.con:
            self.con.execute("INSERT INTO system_metadata(id, scaling_factors) \
                              VALUES(?,?)",
                             (path, sqlite3.Binary(scaling_factors)))