kuroshiro-analyzer-yahoo-webapi/lib/index.js

Yahoo WebAPI morphological analyzer for kuroshiro

"use strict";

Object.defineProperty(exports, "__esModule", {
    value: true
});

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _axios = require("axios");

var _axios2 = _interopRequireDefault(_axios);

var _querystring = require("querystring");

var _querystring2 = _interopRequireDefault(_querystring);

var _fastXmlParser = require("fast-xml-parser");

var _fastXmlParser2 = _interopRequireDefault(_fastXmlParser);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var API_URL = "https://jlp.yahooapis.jp/MAService/V1/parse";

/**
 * Yahoo WebAPI Analyzer
 */

var Analyzer = function () {
    /**
     * Constructor
     * @param {string} [appId] Your Yahoo application ID.
     * @param {Number} [timeout] Request timeout in millisecond.
     */
    function Analyzer() {
        var _ref = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
            appId = _ref.appId,
            timeout = _ref.timeout;

        _classCallCheck(this, Analyzer);

        this._analyzer = null;
        this._appId = appId;
        this._timeout = timeout || 5000;
    }

    /**
     * Initialize the analyzer
     * @returns {Promise} Promise object represents the result of initialization
     */


    _createClass(Analyzer, [{
        key: "init",
        value: function init() {
            var _this = this;

            return new Promise(function (resolve, reject) {
                if (_this._analyzer == null) {
                    _this._analyzer = "yahoo";
                    resolve();
                } else {
                    reject(new Error("This analyzer has already been initialized."));
                }
            });
        }

        /**
         * Parse the given string
         * @param {*} str input string
         * @returns {Promise} Promise object represents the result of parsing
         */

    }, {
        key: "parse",
        value: function parse() {
            var str = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : "";

            var self = this;
            return new Promise(function (resolve, reject) {
                var paramJson = {
                    appid: self._appId,
                    sentence: str,
                    results: "ma"
                };
                (0, _axios2.default)({
                    method: "post",
                    url: API_URL,
                    data: _querystring2.default.stringify(paramJson),
                    timeout: self._timeout
                }).then(function (res) {
                    var result = [];
                    var resObj = _fastXmlParser2.default.parse(res.data, {
                        trimValues: false // in case of the whitespace character
                    });
                    if (resObj.ResultSet.ma_result.total_count === 0) return resolve(result);
                    if (resObj.ResultSet.ma_result.total_count === 1) {
                        result.push({
                            surface_form: resObj.ResultSet.ma_result.word_list.word.surface,
                            pos: resObj.ResultSet.ma_result.word_list.word.pos,
                            reading: resObj.ResultSet.ma_result.word_list.word.reading
                        });
                    } else {
                        for (var i = 0; i < resObj.ResultSet.ma_result.word_list.word.length; i++) {
                            result.push({
                                surface_form: resObj.ResultSet.ma_result.word_list.word[i].surface,
                                pos: resObj.ResultSet.ma_result.word_list.word[i].pos,
                                reading: resObj.ResultSet.ma_result.word_list.word[i].reading
                            });
                        }
                    }
                    resolve(result);
                }).catch(function (err) {
                    reject(err);
                });
            });
        }
    }]);

    return Analyzer;
}();

exports.default = Analyzer;
module.exports = exports["default"];