pelias-geonames/lib/streams/featureCodeFilterStream.js

Import pipleine to bring Geonames data into the Pelias Geocoder

var filter = require('through2-filter');
var _ = require( 'lodash' );

var unwantedFcodes = [
  'RGN',   // large regions like 'Northern Europe' or 'Southern California' that don't fit well in admin hierarchies
  'RGNE',  // economic regions. consists of multiple cities and is unwanted for geocoding
  'ADM1H', // historical
  'ADM2H', // historical
  'ADM3H', // historical
  'ADM4H', // historical
  'ADMDH', // historical
  'PCLH',  // historical
  'RGNH',  // historical
  'PPLCH', // historical
  'PPLH',  // historical
  'PPLQ',  // abandoned places
  'PPLW',  // destroyed place
  'ZN',    // large multi-state regions
  'CONT',  // contenents (currently not supported)
];

function filterRecord(data) {
  return !_.includes(unwantedFcodes, data.feature_code);
}

function create() {
  return filter.obj(filterRecord);
}

module.exports = {
  filterRecord: filterRecord,
  create: create
};