# Source: vertx-auth-common-js/auth_provider.js

    /*
     * Copyright 2014 Red Hat, Inc.
     *
     * Red Hat licenses this file to you under the Apache License, version 2.0
     * (the "License"); you may not use this file except in compliance with the
     * License.  You may obtain a copy of the License at:
     *
     * http://www.apache.org/licenses/LICENSE-2.0
     *
     * Unless required by applicable law or agreed to in writing, software
     * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
     * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
     * License for the specific language governing permissions and limitations
     * under the License.
     */

    /** @module vertx-auth-common-js/auth_provider */
    var utils = require('vertx-js/util/utils');
    var User = require('vertx-auth-common-js/user');

    var io = Packages.io;
    var JsonObject = io.vertx.core.json.JsonObject;
    var JAuthProvider = io.vertx.ext.auth.AuthProvider;

    /**

     User-facing interface for authenticating users.

     @class
    */
    var AuthProvider = function(j_val) {

      var j_authProvider = j_val;
      var that = this;

      /**
       Authenticate a user.
       <p>
       The first argument is a JSON object containing information for authenticating the user. What this actually contains
       depends on the specific implementation. In the case of a simple username/password based
       authentication it is likely to contain a JSON object with the following structure:
       <pre>
         {
           "username": "tim",
           "password": "mypassword"
         }
       </pre>
       For other types of authentication it contain different information - for example a JWT token or OAuth bearer token.
       <p>
       If the user is successfully authenticated a {@link User} object is passed to the handler in an {@link AsyncResult}.
       The user object can then be used for authorisation.

       @public
       @param authInfo {Object} The auth information
       @param resultHandler {function} The result handler
       */
      this.authenticate = function(authInfo, resultHandler) {
        var __args = arguments;
        if (__args.length === 2 && (typeof __args[0] === 'object' && __args[0] != null) && typeof __args[1] === 'function') {
          j_authProvider["authenticate(io.vertx.core.json.JsonObject,io.vertx.core.Handler)"](utils.convParamJsonObject(authInfo), function(ar) {
          if (ar.succeeded()) {
            resultHandler(utils.convReturnVertxGen(ar.result(), User), null);
          } else {
            resultHandler(null, ar.cause());
          }
        });
        } else throw new TypeError('function invoked with invalid arguments');
      };

      // A reference to the underlying Java delegate
      // NOTE! This is an internal API and must not be used in user code.
      // If you rely on this property your code is likely to break if we change it / remove it without warning.
      this._jdel = j_authProvider;
    };

    // We export the Constructor function
    module.exports = AuthProvider;