remove typing_extensions requirement

[nominatim.git] / nominatim / indexer / runners.py

diff --git a/nominatim/indexer/runners.py b/nominatim/indexer/runners.py
index 29261ee50ebe59aac57a260e560a6016036e5139..bbadd282ec96c538baa7ff3926e75bd5bd6cbe69 100644 (file)
--- a/nominatim/indexer/runners.py
+++ b/nominatim/indexer/runners.py
@@ -1,31 +1,55 @@
+# 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.

 """
 Mix-ins that provide the actual commands for the indexer for various indexing
 tasks.
 """
 """
 Mix-ins that provide the actual commands for the indexer for various indexing
 tasks.
 """

+from typing import Any, List

 import functools
 
 import functools
 

-import psycopg2.extras

 from psycopg2 import sql as pysql
 from psycopg2 import sql as pysql

+import psycopg2.extras
+
+from nominatim.data.place_info import PlaceInfo
+from nominatim.tokenizer.base import AbstractAnalyzer
+from nominatim.db.async_connection import DBConnection
+from nominatim.typing import Query, DictCursorResult, DictCursorResults, Protocol

 
 # pylint: disable=C0111
 
 
 # pylint: disable=C0111
 

-def _mk_valuelist(template, num):
+def _mk_valuelist(template: str, num: int) -> pysql.Composed:

     return pysql.SQL(',').join([pysql.SQL(template)] * num)
 
     return pysql.SQL(',').join([pysql.SQL(template)] * num)
 

+def _analyze_place(place: DictCursorResult, analyzer: AbstractAnalyzer) -> psycopg2.extras.Json:
+    return psycopg2.extras.Json(analyzer.process_place(PlaceInfo(place)))
+
+
+class Runner(Protocol):
+    def name(self) -> str: ...
+    def sql_count_objects(self) -> Query: ...
+    def sql_get_objects(self) -> Query: ...
+    def get_place_details(self, worker: DBConnection,
+                          ids: DictCursorResults) -> DictCursorResults: ...
+    def index_places(self, worker: DBConnection, places: DictCursorResults) -> None: ...
+
+

 class AbstractPlacexRunner:
     """ Returns SQL commands for indexing of the placex table.
     """
     SELECT_SQL = pysql.SQL('SELECT place_id FROM placex ')
     UPDATE_LINE = "(%s, %s::hstore, %s::hstore, %s::int, %s::jsonb)"
 
 class AbstractPlacexRunner:
     """ Returns SQL commands for indexing of the placex table.
     """
     SELECT_SQL = pysql.SQL('SELECT place_id FROM placex ')
     UPDATE_LINE = "(%s, %s::hstore, %s::hstore, %s::int, %s::jsonb)"
 

-    def __init__(self, rank, analyzer):
+    def __init__(self, rank: int, analyzer: AbstractAnalyzer) -> None:

         self.rank = rank
         self.analyzer = analyzer
 
 
         self.rank = rank
         self.analyzer = analyzer
 
 

-    @staticmethod

     @functools.lru_cache(maxsize=1)
     @functools.lru_cache(maxsize=1)

-    def _index_sql(num_places):
+    def _index_sql(self, num_places: int) -> pysql.Composed:

         return pysql.SQL(
             """ UPDATE placex
                 SET indexed_status = 0, address = v.addr, token_info = v.ti,
         return pysql.SQL(
             """ UPDATE placex
                 SET indexed_status = 0, address = v.addr, token_info = v.ti,


@@ -35,19 +59,21 @@ class AbstractPlacexRunner:
             """).format(_mk_valuelist(AbstractPlacexRunner.UPDATE_LINE, num_places))
 
 
             """).format(_mk_valuelist(AbstractPlacexRunner.UPDATE_LINE, num_places))
 
 

-    @staticmethod
-    def get_place_details(worker, ids):
-        worker.perform("""SELECT place_id, (placex_prepare_update(placex)).*
-                          FROM placex WHERE place_id IN %s""",
+    def get_place_details(self, worker: DBConnection, ids: DictCursorResults) -> DictCursorResults:
+        worker.perform("""SELECT place_id, extra.*
+                          FROM placex, LATERAL placex_indexing_prepare(placex) as extra
+                          WHERE place_id IN %s""",

                        (tuple((p[0] for p in ids)), ))
 
                        (tuple((p[0] for p in ids)), ))
 

+        return []
+

 
 

-    def index_places(self, worker, places):
-        values = []
+    def index_places(self, worker: DBConnection, places: DictCursorResults) -> None:
+        values: List[Any] = []

         for place in places:
             for field in ('place_id', 'name', 'address', 'linked_place_id'):
                 values.append(place[field])
         for place in places:
             for field in ('place_id', 'name', 'address', 'linked_place_id'):
                 values.append(place[field])

-            values.append(psycopg2.extras.Json(self.analyzer.process_place(place)))
+            values.append(_analyze_place(place, self.analyzer))

 
         worker.perform(self._index_sql(len(places)), values)
 
 
         worker.perform(self._index_sql(len(places)), values)
 


@@ -56,15 +82,15 @@ class RankRunner(AbstractPlacexRunner):
     """ Returns SQL commands for indexing one rank within the placex table.
     """
 
     """ Returns SQL commands for indexing one rank within the placex table.
     """
 

-    def name(self):
-        return "rank {}".format(self.rank)
+    def name(self) -> str:
+        return f"rank {self.rank}"

 
 

-    def sql_count_objects(self):
+    def sql_count_objects(self) -> pysql.Composed:

         return pysql.SQL("""SELECT count(*) FROM placex
                             WHERE rank_address = {} and indexed_status > 0
                          """).format(pysql.Literal(self.rank))
 
         return pysql.SQL("""SELECT count(*) FROM placex
                             WHERE rank_address = {} and indexed_status > 0
                          """).format(pysql.Literal(self.rank))
 

-    def sql_get_objects(self):
+    def sql_get_objects(self) -> pysql.Composed:

         return self.SELECT_SQL + pysql.SQL(
             """WHERE indexed_status > 0 and rank_address = {}
                ORDER BY geometry_sector
         return self.SELECT_SQL + pysql.SQL(
             """WHERE indexed_status > 0 and rank_address = {}
                ORDER BY geometry_sector


@@ -76,17 +102,17 @@ class BoundaryRunner(AbstractPlacexRunner):
         of a certain rank.
     """
 
         of a certain rank.
     """
 

-    def name(self):
-        return "boundaries rank {}".format(self.rank)
+    def name(self) -> str:
+        return f"boundaries rank {self.rank}"

 
 

-    def sql_count_objects(self):
+    def sql_count_objects(self) -> pysql.Composed:

         return pysql.SQL("""SELECT count(*) FROM placex
                             WHERE indexed_status > 0
                               AND rank_search = {}
                               AND class = 'boundary' and type = 'administrative'
                          """).format(pysql.Literal(self.rank))
 
         return pysql.SQL("""SELECT count(*) FROM placex
                             WHERE indexed_status > 0
                               AND rank_search = {}
                               AND class = 'boundary' and type = 'administrative'
                          """).format(pysql.Literal(self.rank))
 

-    def sql_get_objects(self):
+    def sql_get_objects(self) -> pysql.Composed:

         return self.SELECT_SQL + pysql.SQL(
             """WHERE indexed_status > 0 and rank_search = {}
                      and class = 'boundary' and type = 'administrative'
         return self.SELECT_SQL + pysql.SQL(
             """WHERE indexed_status > 0 and rank_search = {}
                      and class = 'boundary' and type = 'administrative'


@@ -99,37 +125,33 @@ class InterpolationRunner:
         location_property_osmline.
     """
 
         location_property_osmline.
     """
 

-    def __init__(self, analyzer):
+    def __init__(self, analyzer: AbstractAnalyzer) -> None:

         self.analyzer = analyzer
 
 
         self.analyzer = analyzer
 
 

-    @staticmethod
-    def name():
+    def name(self) -> str:

         return "interpolation lines (location_property_osmline)"
 
         return "interpolation lines (location_property_osmline)"
 

-    @staticmethod
-    def sql_count_objects():
+    def sql_count_objects(self) -> str:

         return """SELECT count(*) FROM location_property_osmline
                   WHERE indexed_status > 0"""
 
         return """SELECT count(*) FROM location_property_osmline
                   WHERE indexed_status > 0"""
 

-    @staticmethod
-    def sql_get_objects():
+    def sql_get_objects(self) -> str:

         return """SELECT place_id
                   FROM location_property_osmline
                   WHERE indexed_status > 0
                   ORDER BY geometry_sector"""
 
 
         return """SELECT place_id
                   FROM location_property_osmline
                   WHERE indexed_status > 0
                   ORDER BY geometry_sector"""
 
 

-    @staticmethod
-    def get_place_details(worker, ids):
+    def get_place_details(self, worker: DBConnection, ids: DictCursorResults) -> DictCursorResults:

         worker.perform("""SELECT place_id, get_interpolation_address(address, osm_id) as address
                           FROM location_property_osmline WHERE place_id IN %s""",
                        (tuple((p[0] for p in ids)), ))
         worker.perform("""SELECT place_id, get_interpolation_address(address, osm_id) as address
                           FROM location_property_osmline WHERE place_id IN %s""",
                        (tuple((p[0] for p in ids)), ))

+        return []

 
 
 
 

-    @staticmethod

     @functools.lru_cache(maxsize=1)
     @functools.lru_cache(maxsize=1)

-    def _index_sql(num_places):
+    def _index_sql(self, num_places: int) -> pysql.Composed:

         return pysql.SQL("""UPDATE location_property_osmline
                             SET indexed_status = 0, address = v.addr, token_info = v.ti
                             FROM (VALUES {}) as v(id, addr, ti)
         return pysql.SQL("""UPDATE location_property_osmline
                             SET indexed_status = 0, address = v.addr, token_info = v.ti
                             FROM (VALUES {}) as v(id, addr, ti)


@@ -137,36 +159,38 @@ class InterpolationRunner:
                          """).format(_mk_valuelist("(%s, %s::hstore, %s::jsonb)", num_places))
 
 
                          """).format(_mk_valuelist("(%s, %s::hstore, %s::jsonb)", num_places))
 
 

-    def index_places(self, worker, places):
-        values = []
+    def index_places(self, worker: DBConnection, places: DictCursorResults) -> None:
+        values: List[Any] = []

         for place in places:
             values.extend((place[x] for x in ('place_id', 'address')))
         for place in places:
             values.extend((place[x] for x in ('place_id', 'address')))

-            values.append(psycopg2.extras.Json(self.analyzer.process_place(place)))
+            values.append(_analyze_place(place, self.analyzer))

 
         worker.perform(self._index_sql(len(places)), values)
 
 
 
 
         worker.perform(self._index_sql(len(places)), values)
 
 
 

-class PostcodeRunner:
+class PostcodeRunner(Runner):

     """ Provides the SQL commands for indexing the location_postcode table.
     """
 
     """ Provides the SQL commands for indexing the location_postcode table.
     """
 

-    @staticmethod
-    def name():
+    def name(self) -> str:

         return "postcodes (location_postcode)"
 
         return "postcodes (location_postcode)"
 

-    @staticmethod
-    def sql_count_objects():
+
+    def sql_count_objects(self) -> str:

         return 'SELECT count(*) FROM location_postcode WHERE indexed_status > 0'
 
         return 'SELECT count(*) FROM location_postcode WHERE indexed_status > 0'
 

-    @staticmethod
-    def sql_get_objects():
+
+    def sql_get_objects(self) -> str:

         return """SELECT place_id FROM location_postcode
                   WHERE indexed_status > 0
                   ORDER BY country_code, postcode"""
 
         return """SELECT place_id FROM location_postcode
                   WHERE indexed_status > 0
                   ORDER BY country_code, postcode"""
 

-    @staticmethod
-    def index_places(worker, ids):
+
+    def get_place_details(self, worker: DBConnection, ids: DictCursorResults) -> DictCursorResults:
+        return ids
+
+    def index_places(self, worker: DBConnection, places: DictCursorResults) -> None:

         worker.perform(pysql.SQL("""UPDATE location_postcode SET indexed_status = 0
                                     WHERE place_id IN ({})""")
         worker.perform(pysql.SQL("""UPDATE location_postcode SET indexed_status = 0
                                     WHERE place_id IN ({})""")

-                       .format(pysql.SQL(',').join((pysql.Literal(i[0]) for i in ids))))
+                       .format(pysql.SQL(',').join((pysql.Literal(i[0]) for i in places))))