add type annotations to freeze functions

[nominatim.git] / nominatim / tokenizer / factory.py

diff --git a/nominatim/tokenizer/factory.py b/nominatim/tokenizer/factory.py
index e0c06293ff56e22b9d90938bb5af923b0e279bdb..108c7841e0c7c3e4f8bf6bd25b3aa8d9c35bba42 100644 (file)
--- a/nominatim/tokenizer/factory.py
+++ b/nominatim/tokenizer/factory.py
@@ -1,3 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# This file is part of Nominatim. (https://nominatim.org)
+#
+# Copyright (C) 2022 by the Nominatim developer community.
+# For a full list of authors see the git log.
 """
 Functions for creating a tokenizer or initialising the right one for an
 existing database.
@@ -15,6 +21,7 @@ normalizer module is installed, when the tokenizer is created.
 """
 import logging
 import importlib
+from pathlib import Path
 
 from ..errors import UsageError
 from ..db import properties
@@ -25,12 +32,13 @@ LOG = logging.getLogger()
 def _import_tokenizer(name):
     """ Load the tokenizer.py module from project directory.
     """
-    try:
-        return importlib.import_module('nominatim.tokenizer.' + name + '_tokenizer')
-    except ModuleNotFoundError as exp:
+    src_file = Path(__file__).parent / (name + '_tokenizer.py')
+    if not src_file.is_file():
         LOG.fatal("No tokenizer named '%s' available. "
                   "Check the setting of NOMINATIM_TOKENIZER.", name)
-        raise UsageError('Tokenizer not found') from exp
+        raise UsageError('Tokenizer not found')
+
+    return importlib.import_module('nominatim.tokenizer.' + name + '_tokenizer')
 
 
 def create_tokenizer(config, init_db=True, module_name=None):
@@ -70,8 +78,8 @@ def get_tokenizer_for_db(config):
     """
     basedir = config.project_dir / 'tokenizer'
     if not basedir.is_dir():
-        LOG.fatal("Cannot find tokenizer data in '%s'.", basedir)
-        raise UsageError('Cannot initialize tokenizer.')
+        # Directory will be repopulated by tokenizer below.
+        basedir.mkdir()
 
     with connect(config.get_libpq_dsn()) as conn:
         name = properties.get_property(conn, 'tokenizer')
@@ -83,6 +91,6 @@ def get_tokenizer_for_db(config):
     tokenizer_module = _import_tokenizer(name)
 
     tokenizer = tokenizer_module.create(config.get_libpq_dsn(), basedir)
-    tokenizer.init_from_project()
+    tokenizer.init_from_project(config)
 
     return tokenizer