def __init__(self, ch_basename, osmdb_filename, profiledb_filename):
graphdb = GraphDatabase(graphdb_filename)
self.osmdb = OSMDB(osmdb_filename)
self.profiledb = ProfileDB(profiledb_filename)
self.ch = reincarnate_ch(ch_basename)
self.shortcut_cache = ShortcutCache(ch_basename + ".scc")
