src/nominatim_api/v1/format.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 Output formatters for API version v1.
   9 """
  10 from typing import List, Dict, Mapping, Any
  11 import collections
  12 import datetime as dt
  13
  14 from nominatim_core.utils.json_writer import JsonWriter
  15 from ..status import StatusResult
  16 from ..results import DetailedResult, ReverseResults, SearchResults, \
  17                       AddressLines, AddressLine
  18 from ..localization import Locales
  19 from ..result_formatting import FormatDispatcher
  20 from .classtypes import ICONS
  21 from . import format_json, format_xml
  22
  23 class RawDataList(List[Dict[str, Any]]):
  24     """ Data type for formatting raw data lists 'as is' in json.
  25     """
  26
  27 dispatch = FormatDispatcher()
  28
  29 @dispatch.format_func(StatusResult, 'text')
  30 def _format_status_text(result: StatusResult, _: Mapping[str, Any]) -> str:
  31     if result.status:
  32         return f"ERROR: {result.message}"
  33
  34     return 'OK'
  35
  36
  37 @dispatch.format_func(StatusResult, 'json')
  38 def _format_status_json(result: StatusResult, _: Mapping[str, Any]) -> str:
  39     out = JsonWriter()
  40
  41     out.start_object()\
  42          .keyval('status', result.status)\
  43          .keyval('message', result.message)\
  44          .keyval_not_none('data_updated', result.data_updated,
  45                           lambda v: v.isoformat())\
  46          .keyval('software_version', str(result.software_version))\
  47          .keyval_not_none('database_version', result.database_version, str)\
  48        .end_object()
  49
  50     return out()
  51
  52
  53 def _add_address_row(writer: JsonWriter, row: AddressLine,
  54                      locales: Locales) -> None:
  55     writer.start_object()\
  56             .keyval('localname', locales.display_name(row.names))\
  57             .keyval_not_none('place_id', row.place_id)
  58
  59     if row.osm_object is not None:
  60         writer.keyval('osm_id', row.osm_object[1])\
  61               .keyval('osm_type', row.osm_object[0])
  62
  63     if row.extratags:
  64         writer.keyval_not_none('place_type', row.extratags.get('place_type'))
  65
  66     writer.keyval('class', row.category[0])\
  67           .keyval('type', row.category[1])\
  68           .keyval_not_none('admin_level', row.admin_level)\
  69           .keyval('rank_address', row.rank_address)\
  70           .keyval('distance', row.distance)\
  71           .keyval('isaddress', row.isaddress)\
  72         .end_object()
  73
  74
  75 def _add_address_rows(writer: JsonWriter, section: str, rows: AddressLines,
  76                       locales: Locales) -> None:
  77     writer.key(section).start_array()
  78     for row in rows:
  79         _add_address_row(writer, row, locales)
  80         writer.next()
  81     writer.end_array().next()
  82
  83
  84 def _add_parent_rows_grouped(writer: JsonWriter, rows: AddressLines,
  85                              locales: Locales) -> None:
  86     # group by category type
  87     data = collections.defaultdict(list)
  88     for row in rows:
  89         sub = JsonWriter()
  90         _add_address_row(sub, row, locales)
  91         data[row.category[1]].append(sub())
  92
  93     writer.key('hierarchy').start_object()
  94     for group, grouped in data.items():
  95         writer.key(group).start_array()
  96         grouped.sort() # sorts alphabetically by local name
  97         for line in grouped:
  98             writer.raw(line).next()
  99         writer.end_array().next()
 100
 101     writer.end_object().next()
 102
 103
 104 @dispatch.format_func(DetailedResult, 'json')
 105 def _format_details_json(result: DetailedResult, options: Mapping[str, Any]) -> str:
 106     locales = options.get('locales', Locales())
 107     geom = result.geometry.get('geojson')
 108     centroid = result.centroid.to_geojson()
 109
 110     out = JsonWriter()
 111     out.start_object()\
 112          .keyval_not_none('place_id', result.place_id)\
 113          .keyval_not_none('parent_place_id', result.parent_place_id)
 114
 115     if result.osm_object is not None:
 116         out.keyval('osm_type', result.osm_object[0])\
 117            .keyval('osm_id', result.osm_object[1])
 118
 119     out.keyval('category', result.category[0])\
 120          .keyval('type', result.category[1])\
 121          .keyval('admin_level', result.admin_level)\
 122          .keyval('localname', result.locale_name or '')\
 123          .keyval('names', result.names or {})\
 124          .keyval('addresstags', result.address or {})\
 125          .keyval_not_none('housenumber', result.housenumber)\
 126          .keyval_not_none('calculated_postcode', result.postcode)\
 127          .keyval_not_none('country_code', result.country_code)\
 128          .keyval_not_none('indexed_date', result.indexed_date, lambda v: v.isoformat())\
 129          .keyval_not_none('importance', result.importance)\
 130          .keyval('calculated_importance', result.calculated_importance())\
 131          .keyval('extratags', result.extratags or {})\
 132          .keyval_not_none('calculated_wikipedia', result.wikipedia)\
 133          .keyval('rank_address', result.rank_address)\
 134          .keyval('rank_search', result.rank_search)\
 135          .keyval('isarea', 'Polygon' in (geom or result.geometry.get('type') or ''))\
 136          .key('centroid').raw(centroid).next()\
 137          .key('geometry').raw(geom or centroid).next()
 138
 139     if options.get('icon_base_url', None):
 140         icon = ICONS.get(result.category)
 141         if icon:
 142             out.keyval('icon', f"{options['icon_base_url']}/{icon}.p.20.png")
 143
 144     if result.address_rows is not None:
 145         _add_address_rows(out, 'address', result.address_rows, locales)
 146
 147     if result.linked_rows:
 148         _add_address_rows(out, 'linked_places', result.linked_rows, locales)
 149
 150     if result.name_keywords is not None or result.address_keywords is not None:
 151         out.key('keywords').start_object()
 152
 153         for sec, klist in (('name', result.name_keywords), ('address', result.address_keywords)):
 154             out.key(sec).start_array()
 155             for word in (klist or []):
 156                 out.start_object()\
 157                      .keyval('id', word.word_id)\
 158                      .keyval('token', word.word_token)\
 159                    .end_object().next()
 160             out.end_array().next()
 161
 162         out.end_object().next()
 163
 164     if result.parented_rows is not None:
 165         if options.get('group_hierarchy', False):
 166             _add_parent_rows_grouped(out, result.parented_rows, locales)
 167         else:
 168             _add_address_rows(out, 'hierarchy', result.parented_rows, locales)
 169
 170     out.end_object()
 171
 172     return out()
 173
 174
 175 @dispatch.format_func(ReverseResults, 'xml')
 176 def _format_reverse_xml(results: ReverseResults, options: Mapping[str, Any]) -> str:
 177     return format_xml.format_base_xml(results,
 178                                       options, True, 'reversegeocode',
 179                                       {'querystring': options.get('query', '')})
 180
 181
 182 @dispatch.format_func(ReverseResults, 'geojson')
 183 def _format_reverse_geojson(results: ReverseResults,
 184                             options: Mapping[str, Any]) -> str:
 185     return format_json.format_base_geojson(results, options, True)
 186
 187
 188 @dispatch.format_func(ReverseResults, 'geocodejson')
 189 def _format_reverse_geocodejson(results: ReverseResults,
 190                                 options: Mapping[str, Any]) -> str:
 191     return format_json.format_base_geocodejson(results, options, True)
 192
 193
 194 @dispatch.format_func(ReverseResults, 'json')
 195 def _format_reverse_json(results: ReverseResults,
 196                          options: Mapping[str, Any]) -> str:
 197     return format_json.format_base_json(results, options, True,
 198                                         class_label='class')
 199
 200
 201 @dispatch.format_func(ReverseResults, 'jsonv2')
 202 def _format_reverse_jsonv2(results: ReverseResults,
 203                            options: Mapping[str, Any]) -> str:
 204     return format_json.format_base_json(results, options, True,
 205                                         class_label='category')
 206
 207
 208 @dispatch.format_func(SearchResults, 'xml')
 209 def _format_search_xml(results: SearchResults, options: Mapping[str, Any]) -> str:
 210     extra = {'querystring': options.get('query', '')}
 211     for attr in ('more_url', 'exclude_place_ids', 'viewbox'):
 212         if options.get(attr):
 213             extra[attr] = options[attr]
 214     return format_xml.format_base_xml(results, options, False, 'searchresults',
 215                                       extra)
 216
 217
 218
 219 @dispatch.format_func(SearchResults, 'geojson')
 220 def _format_search_geojson(results: SearchResults,
 221                             options: Mapping[str, Any]) -> str:
 222     return format_json.format_base_geojson(results, options, False)
 223
 224
 225 @dispatch.format_func(SearchResults, 'geocodejson')
 226 def _format_search_geocodejson(results: SearchResults,
 227                                 options: Mapping[str, Any]) -> str:
 228     return format_json.format_base_geocodejson(results, options, False)
 229
 230
 231 @dispatch.format_func(SearchResults, 'json')
 232 def _format_search_json(results: SearchResults,
 233                          options: Mapping[str, Any]) -> str:
 234     return format_json.format_base_json(results, options, False,
 235                                         class_label='class')
 236
 237
 238 @dispatch.format_func(SearchResults, 'jsonv2')
 239 def _format_search_jsonv2(results: SearchResults,
 240                            options: Mapping[str, Any]) -> str:
 241     return format_json.format_base_json(results, options, False,
 242                                         class_label='category')
 243
 244 @dispatch.format_func(RawDataList, 'json')
 245 def _format_raw_data_json(results: RawDataList,  _: Mapping[str, Any]) -> str:
 246     out = JsonWriter()
 247     out.start_array()
 248     for res in results:
 249         out.start_object()
 250         for k, v in res.items():
 251             if isinstance(v, dt.datetime):
 252                 out.keyval(k, v.isoformat(sep= ' ', timespec='seconds'))
 253             else:
 254                 out.keyval(k, v)
 255         out.end_object().next()
 256
 257     out.end_array()
 258
 259     return out()