Sindbad~EG File Manager

<?php
/*
 * Copyright (c) 2013, 2014 MasterCard International Incorporated
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification, are 
 * permitted provided that the following conditions are met:
 * 
 * Redistributions of source code must retain the above copyright notice, this list of 
 * conditions and the following disclaimer.
 * Redistributions in binary form must reproduce the above copyright notice, this list of 
 * conditions and the following disclaimer in the documentation and/or other materials 
 * provided with the distribution.
 * Neither the name of the MasterCard International Incorporated nor the names of its 
 * contributors may be used to endorse or promote products derived from this software 
 * without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY 
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
 * SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 
 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
 * SUCH DAMAGE.
 */

/**
 * Simplify_Authentication - encapsulates the credentials needed to make a request to the Simplify API.
 *
 * @var $publicKey - this is your API public key
 * @var $privateKey - this is your API private key
 * @var $accessToken - Oauth access token that is needed to make API requests on behalf of another user
 */
class Simplify_Authentication {

    public $privateKey;
    public $publicKey;
    public $accessToken;

    function __construct() {
        $args = func_get_args();
        switch( func_num_args() ) {
            case 1:
                self::__construct1( $args[0] );
                break;
            case 2:
                self::__construct2( $args[0], $args[1] );
                break;
            case 3:
                self::__construct3( $args[0], $args[1], $args[2] );
        }
    }

    function __construct1($accessToken) {
        $this->accessToken = $accessToken;
    }

    function __construct2($publicKey, $privateKey) {
        $this->publicKey = $publicKey;
        $this->privateKey = $privateKey;
    }

    function __construct3($publicKey, $privateKey, $accessToken) {
        $this->publicKey = $publicKey;
        $this->privateKey = $privateKey;
        $this->accessToken = $accessToken;
    }
}