All files / lib/geocoder opencagegeocoder.js

93.55% Statements 58/62
70.59% Branches 24/34
100% Functions 7/7
93.55% Lines 58/62
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 1622x 2x     2x                                 2x 9x   9x   8x 1x     7x 7x 7x     2x             2x 3x   3x 3x 1x 1x 1x           1x 1x   1x 1x   1x 1x   1x     2x     3x   1x       1x   1x 1x 1x       1x 1x             2x 2x 2x                                             2x 1x 1x   1x   1x 1x   1x 1x     1x   1x 1x 1x       1x 1x                   2x 4x 4x   4x       4x     2x  
var util = require('util'),
  AbstractGeocoder = require('./abstractgeocoder');
 
// http://geocoder.opencagedata.com/api.html#confidence
var ConfidenceInKM = {
  10: 0.25,
  9: 0.5,
  8: 1,
  7: 5,
  6: 7.5,
  5: 10,
  4: 15,
  3: 20,
  2: 25,
  1: Number.POSITIVE_INFINITY,
  0: Number.NaN
};
 
/**
 * Constructor
 */
var OpenCageGeocoder = function OpenCageGeocoder(httpAdapter, apiKey, options) {
  this.options = ['language'];
 
  OpenCageGeocoder.super_.call(this, httpAdapter, options);
 
  if (!apiKey || apiKey == 'undefined') {
    throw new Error(this.constructor.name + ' needs an apiKey');
  }
 
  this.apiKey = apiKey;
  this._endpoint = 'http://api.opencagedata.com/geocode/v1/json';
  this._ConfidenceInKM = ConfidenceInKM; // In case we need to support v1/v2 and this changes
};
 
util.inherits(OpenCageGeocoder, AbstractGeocoder);
 
/**
 * Geocode
 * @param <string>   value    Value to geocode (Address)
 * @param <function> callback Callback method
 */
OpenCageGeocoder.prototype._geocode = function (value, callback) {
  var _this = this;
 
  var params = this._getCommonParams();
  if (value.address) {
    Eif (value.bounds) {
      Eif (Array.isArray(value.bounds)) {
        params.bounds = value.bounds.join(',');
      }
      else {
        params.bounds = value.bounds;
      }
    }
    Eif (value.countryCode) {
      params.countrycode = value.countryCode;
    }
    Eif (value.limit) {
      params.limit = value.limit;
    }
    Eif (value.minConfidence) {
      params.min_confidence = value.minConfidence;
    }
    params.q = value.address;
  }
  else {
    params.q = value;
  }
 
  this.httpAdapter.get(this._endpoint, params, function (err, result) {
 
    Iif (err) {
      return callback(err);
    } else {
 
      var results = [];
 
      Eif (result && result.results instanceof Array) {
        for (var i = 0; i < result.results.length; i++) {
          results.push(_this._formatResult(result.results[i]));
        }
      }
 
      results.raw = result;
      callback(false, results);
    }
 
  });
 
};
 
OpenCageGeocoder.prototype._formatResult = function (result) {
  var confidence = result.confidence || 0;
  return {
    'latitude': result.geometry.lat,
    'longitude': result.geometry.lng,
    'country': result.components.country,
    'city': result.components.city,
    'state': result.components.state,
    'zipcode': result.components.postcode,
    'streetName': result.components.road,
    'streetNumber': result.components.house_number,
    'countryCode': result.components.country_code,
    'county': result.components.county,
    'extra': {
      confidence: confidence,
      confidenceKM: this._ConfidenceInKM[result.confidence] || Number.NaN
    }
  };
};
 
/**
 * Reverse geocoding
 * @param {lat:<number>,lon:<number>}  lat: Latitude, lon: Longitude
 * @param <function> callback Callback method
 */
OpenCageGeocoder.prototype._reverse = function (query, callback) {
  var lat = query.lat;
  var lng = query.lon;
 
  var _this = this;
 
  var params = this._getCommonParams();
  params.q = lat + ' ' + lng;
 
  this.httpAdapter.get(this._endpoint, params, function (err, result) {
    Iif (err) {
      callback(err);
    } else {
      var results = [];
 
      Eif (result && result.results instanceof Array) {
        for (var i = 0; i < result.results.length; i++) {
          results.push(_this._formatResult(result.results[i]));
        }
      }
 
      results.raw = result;
      callback(false, results);
    }
  });
};
 
/**
 * Prepare common params
 *
 * @return <Object> common params
 */
OpenCageGeocoder.prototype._getCommonParams = function () {
  var params = {};
  params.key = this.apiKey;
 
  Iif (this.options.language) {
    params.language = this.options.language;
  }
 
  return params;
};
 
module.exports = OpenCageGeocoder;