src/nominatim_db/tokenizer/sanitizers/tag_japanese.py

   1 # SPDX-License-Identifier: GPL-3.0-or-later
   2 #
   3 # This file is part of Nominatim. (https://nominatim.org)
   4 #
   5 # Copyright (C) 2024 by the Nominatim developer community.
   6 # For a full list of authors see the git log.
   7 """
   8 This sanitizer maps OSM data to Japanese block addresses.
   9 It replaces blocknumber and housenumber with housenumber,
  10 and quarter and neighbourhood with place.
  11 """
  12
  13
  14 from typing import Callable
  15 from typing import List, Optional
  16
  17 from .base import ProcessInfo
  18 from .config import SanitizerConfig
  19 from ...data.place_name import PlaceName
  20
  21 def create(_: SanitizerConfig) -> Callable[[ProcessInfo], None]:
  22     """Set up the sanitizer
  23     """
  24     return tag_japanese
  25
  26 def reconbine_housenumber(
  27     new_address: List[PlaceName],
  28     tmp_housenumber: Optional[str],
  29     tmp_blocknumber: Optional[str]
  30 ) -> List[PlaceName]:
  31     """ Recombine the tag of housenumber by using housenumber and blocknumber
  32     """
  33     if tmp_blocknumber and tmp_housenumber:
  34         new_address.append(
  35             PlaceName(
  36                 kind='housenumber',
  37                 name=f'{tmp_blocknumber}-{tmp_housenumber}',
  38                 suffix=''
  39             )
  40         )
  41     elif tmp_blocknumber:
  42         new_address.append(
  43             PlaceName(
  44                 kind='housenumber',
  45                 name=tmp_blocknumber,
  46                 suffix=''
  47             )
  48         )
  49     elif tmp_housenumber:
  50         new_address.append(
  51             PlaceName(
  52                 kind='housenumber',
  53                 name=tmp_housenumber,
  54                 suffix=''
  55             )
  56         )
  57     return new_address
  58
  59 def reconbine_place(
  60     new_address: List[PlaceName],
  61     tmp_neighbourhood: Optional[str],
  62     tmp_quarter: Optional[str]
  63 ) -> List[PlaceName]:
  64     """ Recombine the tag of place by using neighbourhood and quarter
  65     """
  66     if tmp_neighbourhood and tmp_quarter:
  67         new_address.append(
  68             PlaceName(
  69                 kind='place',
  70                 name=f'{tmp_quarter}{tmp_neighbourhood}',
  71                 suffix=''
  72             )
  73         )
  74     elif tmp_neighbourhood:
  75         new_address.append(
  76             PlaceName(
  77                 kind='place',
  78                 name=tmp_neighbourhood,
  79                 suffix=''
  80             )
  81         )
  82     elif tmp_quarter:
  83         new_address.append(
  84             PlaceName(
  85                 kind='place',
  86                 name=tmp_quarter,
  87                 suffix=''
  88             )
  89         )
  90     return new_address
  91 def tag_japanese(obj: ProcessInfo) -> None:
  92     """Recombine kind of address
  93     """
  94     if obj.place.country_code != 'jp':
  95         return
  96     tmp_housenumber = None
  97     tmp_blocknumber = None
  98     tmp_neighbourhood = None
  99     tmp_quarter = None
 100
 101     new_address = []
 102     for item in obj.address:
 103         if item.kind == 'housenumber':
 104             tmp_housenumber = item.name
 105         elif item.kind == 'block_number':
 106             tmp_blocknumber = item.name
 107         elif item.kind == 'neighbourhood':
 108             tmp_neighbourhood = item.name
 109         elif item.kind == 'quarter':
 110             tmp_quarter = item.name
 111         else:
 112             new_address.append(item)
 113
 114     new_address = reconbine_housenumber(new_address, tmp_housenumber, tmp_blocknumber)
 115     new_address = reconbine_place(new_address, tmp_neighbourhood, tmp_quarter)
 116
 117     obj.address = [item for item in new_address if item.name is not None]