nominatim/api/v1/format.py

   1 # SPDX-License-Identifier: GPL-2.0-only
   2 #
   3 # This file is part of Nominatim. (https://nominatim.org)
   4 #
   5 # Copyright (C) 2023 by the Nominatim developer community.
   6 # For a full list of authors see the git log.
   7 """
   8 Output formatters for API version v1.
   9 """
  10 from typing import Mapping, Any
  11 import collections
  12
  13 import nominatim.api as napi
  14 from nominatim.api.result_formatting import FormatDispatcher
  15 from nominatim.api.v1.classtypes import ICONS
  16 from nominatim.api.v1 import format_json, format_xml
  17 from nominatim.utils.json_writer import JsonWriter
  18
  19 dispatch = FormatDispatcher()
  20
  21 @dispatch.format_func(napi.StatusResult, 'text')
  22 def _format_status_text(result: napi.StatusResult, _: Mapping[str, Any]) -> str:
  23     if result.status:
  24         return f"ERROR: {result.message}"
  25
  26     return 'OK'
  27
  28
  29 @dispatch.format_func(napi.StatusResult, 'json')
  30 def _format_status_json(result: napi.StatusResult, _: Mapping[str, Any]) -> str:
  31     out = JsonWriter()
  32
  33     out.start_object()\
  34          .keyval('status', result.status)\
  35          .keyval('message', result.message)\
  36          .keyval_not_none('data_updated', result.data_updated,
  37                           lambda v: v.isoformat())\
  38          .keyval('software_version', str(result.software_version))\
  39          .keyval_not_none('database_version', result.database_version, str)\
  40        .end_object()
  41
  42     return out()
  43
  44
  45 def _add_address_row(writer: JsonWriter, row: napi.AddressLine,
  46                      locales: napi.Locales) -> None:
  47     writer.start_object()\
  48             .keyval('localname', locales.display_name(row.names))\
  49             .keyval_not_none('place_id', row.place_id)
  50
  51     if row.osm_object is not None:
  52         writer.keyval('osm_id', row.osm_object[1])\
  53               .keyval('osm_type', row.osm_object[0])
  54
  55     if row.extratags:
  56         writer.keyval_not_none('place_type', row.extratags.get('place_type'))
  57
  58     writer.keyval('class', row.category[0])\
  59           .keyval('type', row.category[1])\
  60           .keyval_not_none('admin_level', row.admin_level)\
  61           .keyval('rank_address', row.rank_address)\
  62           .keyval('distance', row.distance)\
  63           .keyval('isaddress', row.isaddress)\
  64         .end_object()
  65
  66
  67 def _add_address_rows(writer: JsonWriter, section: str, rows: napi.AddressLines,
  68                       locales: napi.Locales) -> None:
  69     writer.key(section).start_array()
  70     for row in rows:
  71         _add_address_row(writer, row, locales)
  72         writer.next()
  73     writer.end_array().next()
  74
  75
  76 def _add_parent_rows_grouped(writer: JsonWriter, rows: napi.AddressLines,
  77                              locales: napi.Locales) -> None:
  78     # group by category type
  79     data = collections.defaultdict(list)
  80     for row in rows:
  81         sub = JsonWriter()
  82         _add_address_row(sub, row, locales)
  83         data[row.category[1]].append(sub())
  84
  85     writer.key('hierarchy').start_object()
  86     for group, grouped in data.items():
  87         writer.key(group).start_array()
  88         grouped.sort() # sorts alphabetically by local name
  89         for line in grouped:
  90             writer.raw(line).next()
  91         writer.end_array().next()
  92
  93     writer.end_object().next()
  94
  95
  96 @dispatch.format_func(napi.DetailedResult, 'json')
  97 def _format_details_json(result: napi.DetailedResult, options: Mapping[str, Any]) -> str:
  98     locales = options.get('locales', napi.Locales())
  99     geom = result.geometry.get('geojson')
 100     centroid = result.centroid.to_geojson()
 101
 102     out = JsonWriter()
 103     out.start_object()\
 104          .keyval_not_none('place_id', result.place_id)\
 105          .keyval_not_none('parent_place_id', result.parent_place_id)
 106
 107     if result.osm_object is not None:
 108         out.keyval('osm_type', result.osm_object[0])\
 109            .keyval('osm_id', result.osm_object[1])
 110
 111     out.keyval('category', result.category[0])\
 112          .keyval('type', result.category[1])\
 113          .keyval('admin_level', result.admin_level)\
 114          .keyval('localname', locales.display_name(result.names))\
 115          .keyval_not_none('names', result.names or None)\
 116          .keyval_not_none('addresstags', result.address or None)\
 117          .keyval_not_none('housenumber', result.housenumber)\
 118          .keyval_not_none('calculated_postcode', result.postcode)\
 119          .keyval_not_none('country_code', result.country_code)\
 120          .keyval_not_none('indexed_date', result.indexed_date, lambda v: v.isoformat())\
 121          .keyval_not_none('importance', result.importance)\
 122          .keyval('calculated_importance', result.calculated_importance())\
 123          .keyval_not_none('extratags', result.extratags or None)\
 124          .keyval_not_none('calculated_wikipedia', result.wikipedia)\
 125          .keyval('rank_address', result.rank_address)\
 126          .keyval('rank_search', result.rank_search)\
 127          .keyval('isarea', 'Polygon' in (geom or result.geometry.get('type') or ''))\
 128          .key('centroid').raw(centroid).next()\
 129          .key('geometry').raw(geom or centroid).next()
 130
 131     if options.get('icon_base_url', None):
 132         icon = ICONS.get(result.category)
 133         if icon:
 134             out.keyval('icon', f"{options['icon_base_url']}/{icon}.p.20.png")
 135
 136     if result.address_rows is not None:
 137         _add_address_rows(out, 'address', result.address_rows, locales)
 138
 139     if result.linked_rows is not None:
 140         _add_address_rows(out, 'linked_places', result.linked_rows, locales)
 141
 142     if result.name_keywords is not None or result.address_keywords is not None:
 143         out.key('keywords').start_object()
 144
 145         for sec, klist in (('name', result.name_keywords), ('address', result.address_keywords)):
 146             out.key(sec).start_array()
 147             for word in (klist or []):
 148                 out.start_object()\
 149                      .keyval('id', word.word_id)\
 150                      .keyval('token', word.word_token)\
 151                    .end_object().next()
 152             out.end_array().next()
 153
 154         out.end_object().next()
 155
 156     if result.parented_rows is not None:
 157         if options.get('group_hierarchy', False):
 158             _add_parent_rows_grouped(out, result.parented_rows, locales)
 159         else:
 160             _add_address_rows(out, 'hierarchy', result.parented_rows, locales)
 161
 162     out.end_object()
 163
 164     return out()
 165
 166
 167 @dispatch.format_func(napi.ReverseResults, 'xml')
 168 def _format_reverse_xml(results: napi.ReverseResults, options: Mapping[str, Any]) -> str:
 169     return format_xml.format_base_xml(results,
 170                                       options, True, 'reversegeocode',
 171                                       {'querystring': 'TODO'})
 172
 173
 174 @dispatch.format_func(napi.ReverseResults, 'geojson')
 175 def _format_reverse_geojson(results: napi.ReverseResults,
 176                             options: Mapping[str, Any]) -> str:
 177     return format_json.format_base_geojson(results, options, True)
 178
 179
 180 @dispatch.format_func(napi.ReverseResults, 'geocodejson')
 181 def _format_reverse_geocodejson(results: napi.ReverseResults,
 182                                 options: Mapping[str, Any]) -> str:
 183     return format_json.format_base_geocodejson(results, options, True)
 184
 185
 186 @dispatch.format_func(napi.ReverseResults, 'json')
 187 def _format_reverse_json(results: napi.ReverseResults,
 188                          options: Mapping[str, Any]) -> str:
 189     return format_json.format_base_json(results, options, True,
 190                                         class_label='class')
 191
 192
 193 @dispatch.format_func(napi.ReverseResults, 'jsonv2')
 194 def _format_reverse_jsonv2(results: napi.ReverseResults,
 195                            options: Mapping[str, Any]) -> str:
 196     return format_json.format_base_json(results, options, True,
 197                                         class_label='category')