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https://github.com/osm-search/Nominatim.git
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3185fad918
The only requirement for secondary importance is that a raster table comes out of it. The generic name leaves open where the data comes from.
184 lines
8.3 KiB
Python
184 lines
8.3 KiB
Python
# SPDX-License-Identifier: GPL-2.0-only
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#
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# This file is part of Nominatim. (https://nominatim.org)
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#
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# Copyright (C) 2022 by the Nominatim developer community.
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# For a full list of authors see the git log.
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"""
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Implementation of 'refresh' subcommand.
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"""
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from typing import Tuple, Optional
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import argparse
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import logging
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from pathlib import Path
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from nominatim.config import Configuration
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from nominatim.db.connection import connect
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from nominatim.tokenizer.base import AbstractTokenizer
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from nominatim.clicmd.args import NominatimArgs
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# Do not repeat documentation of subcommand classes.
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# pylint: disable=C0111
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# Using non-top-level imports to avoid eventually unused imports.
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# pylint: disable=E0012,C0415
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LOG = logging.getLogger()
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def _parse_osm_object(obj: str) -> Tuple[str, int]:
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""" Parse the given argument into a tuple of OSM type and ID.
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Raises an ArgumentError if the format is not recognized.
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"""
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if len(obj) < 2 or obj[0].lower() not in 'nrw' or not obj[1:].isdigit():
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raise argparse.ArgumentTypeError("Cannot parse OSM ID. Expect format: [N|W|R]<id>.")
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return (obj[0].upper(), int(obj[1:]))
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class UpdateRefresh:
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"""\
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Recompute auxiliary data used by the indexing process.
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This sub-commands updates various static data and functions in the database.
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It usually needs to be run after changing various aspects of the
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configuration. The configuration documentation will mention the exact
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command to use in such case.
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Warning: the 'update' command must not be run in parallel with other update
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commands like 'replication' or 'add-data'.
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"""
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def __init__(self) -> None:
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self.tokenizer: Optional[AbstractTokenizer] = None
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def add_args(self, parser: argparse.ArgumentParser) -> None:
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group = parser.add_argument_group('Data arguments')
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group.add_argument('--postcodes', action='store_true',
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help='Update postcode centroid table')
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group.add_argument('--word-tokens', action='store_true',
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help='Clean up search terms')
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group.add_argument('--word-counts', action='store_true',
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help='Compute frequency of full-word search terms')
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group.add_argument('--address-levels', action='store_true',
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help='Reimport address level configuration')
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group.add_argument('--functions', action='store_true',
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help='Update the PL/pgSQL functions in the database')
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group.add_argument('--wiki-data', action='store_true',
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help='Update Wikipedia/data importance numbers')
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group.add_argument('--secondary-importance', action='store_true',
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help='Update secondary importance raster data')
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group.add_argument('--importance', action='store_true',
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help='Recompute place importances (expensive!)')
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group.add_argument('--website', action='store_true',
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help='Refresh the directory that serves the scripts for the web API')
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group.add_argument('--data-object', action='append',
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type=_parse_osm_object, metavar='OBJECT',
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help='Mark the given OSM object as requiring an update'
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' (format: [NWR]<id>)')
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group.add_argument('--data-area', action='append',
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type=_parse_osm_object, metavar='OBJECT',
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help='Mark the area around the given OSM object as requiring an update'
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' (format: [NWR]<id>)')
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group = parser.add_argument_group('Arguments for function refresh')
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group.add_argument('--no-diff-updates', action='store_false', dest='diffs',
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help='Do not enable code for propagating updates')
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group.add_argument('--enable-debug-statements', action='store_true',
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help='Enable debug warning statements in functions')
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def run(self, args: NominatimArgs) -> int: #pylint: disable=too-many-branches, too-many-statements
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from ..tools import refresh, postcodes
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from ..indexer.indexer import Indexer
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if args.postcodes:
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if postcodes.can_compute(args.config.get_libpq_dsn()):
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LOG.warning("Update postcodes centroid")
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tokenizer = self._get_tokenizer(args.config)
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postcodes.update_postcodes(args.config.get_libpq_dsn(),
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args.project_dir, tokenizer)
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indexer = Indexer(args.config.get_libpq_dsn(), tokenizer,
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args.threads or 1)
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indexer.index_postcodes()
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else:
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LOG.error("The place table doesn't exist. "
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"Postcode updates on a frozen database is not possible.")
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if args.word_tokens:
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LOG.warning('Updating word tokens')
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tokenizer = self._get_tokenizer(args.config)
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tokenizer.update_word_tokens()
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if args.word_counts:
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LOG.warning('Recompute word statistics')
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self._get_tokenizer(args.config).update_statistics()
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if args.address_levels:
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LOG.warning('Updating address levels')
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with connect(args.config.get_libpq_dsn()) as conn:
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refresh.load_address_levels_from_config(conn, args.config)
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# Attention: must come BEFORE functions
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if args.secondary_importance:
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with connect(args.config.get_libpq_dsn()) as conn:
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# If the table did not exist before, then the importance code
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# needs to be enabled.
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if not conn.table_exists('secondary_importance'):
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args.functions = True
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LOG.warning('Import secondary importance raster data from %s', args.project_dir)
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if refresh.import_secondary_importance(args.config.get_libpq_dsn(),
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args.project_dir) > 0:
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LOG.fatal('FATAL: Cannot update sendary importance raster data')
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return 1
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if args.functions:
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LOG.warning('Create functions')
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with connect(args.config.get_libpq_dsn()) as conn:
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refresh.create_functions(conn, args.config,
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args.diffs, args.enable_debug_statements)
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self._get_tokenizer(args.config).update_sql_functions(args.config)
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if args.wiki_data:
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data_path = Path(args.config.WIKIPEDIA_DATA_PATH
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or args.project_dir)
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LOG.warning('Import wikipdia article importance from %s', data_path)
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if refresh.import_wikipedia_articles(args.config.get_libpq_dsn(),
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data_path) > 0:
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LOG.fatal('FATAL: Wikipedia importance dump file not found')
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return 1
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# Attention: importance MUST come after wiki data import.
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if args.importance:
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LOG.warning('Update importance values for database')
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with connect(args.config.get_libpq_dsn()) as conn:
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refresh.recompute_importance(conn)
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if args.website:
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webdir = args.project_dir / 'website'
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LOG.warning('Setting up website directory at %s', webdir)
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# This is a little bit hacky: call the tokenizer setup, so that
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# the tokenizer directory gets repopulated as well, in case it
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# wasn't there yet.
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self._get_tokenizer(args.config)
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with connect(args.config.get_libpq_dsn()) as conn:
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refresh.setup_website(webdir, args.config, conn)
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if args.data_object or args.data_area:
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with connect(args.config.get_libpq_dsn()) as conn:
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for obj in args.data_object or []:
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refresh.invalidate_osm_object(*obj, conn, recursive=False)
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for obj in args.data_area or []:
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refresh.invalidate_osm_object(*obj, conn, recursive=True)
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conn.commit()
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return 0
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def _get_tokenizer(self, config: Configuration) -> AbstractTokenizer:
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if self.tokenizer is None:
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from ..tokenizer import factory as tokenizer_factory
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self.tokenizer = tokenizer_factory.get_tokenizer_for_db(config)
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return self.tokenizer
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