<?php

/**

 * Zend Framework

 *

 * LICENSE

 *

 * This source file is subject to the new BSD license that is bundled

 * with this package in the file LICENSE.txt.

 * It is also available through the world-wide-web at this URL:

 * http://framework.zend.com/license/new-bsd

 * If you did not receive a copy of the license and are unable to

 * obtain it through the world-wide-web, please send an email

 * to license@zend.com so we can send you a copy immediately.

 *

 * @category   Zend

 * @package    Zend_Server

 * @subpackage Method

 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 * @version    $Id: Callback.php 20096 2010-01-06 02:05:09Z bkarwin $

 */

/**

 * Method callback metadata

 *

 * @category   Zend

 * @package    Zend_Server

 * @subpackage Method

 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 */

class Zend_Server_Method_Callback

{

    /**

     * @var string Class name for class method callback

     */

    protected $_class;

    /**

     * @var string Function name for function callback

     */

    protected $_function;

    /**

     * @var string Method name for class method callback

     */

    protected $_method;

    /**

     * @var string Callback type

     */

    protected $_type;

    /**

     * @var array Valid callback types

     */

    protected $_types = array('function', 'static', 'instance');

    /**

     * Constructor

     *

     * @param  null|array $options

     * @return void

     */

    public function __construct($options = null)

    {

        if ((null !== $options) && is_array($options))  {

            $this->setOptions($options);

        }

    }

    /**

     * Set object state from array of options

     *

     * @param  array $options

     * @return Zend_Server_Method_Callback

     */

    public function setOptions(array $options)

    {

        foreach ($options as $key => $value) {

            $method = 'set' . ucfirst($key);

            if (method_exists($this, $method)) {

                $this->$method($value);

            }

        }

        return $this;

    }

    /**

     * Set callback class

     *

     * @param  string $class

     * @return Zend_Server_Method_Callback

     */

    public function setClass($class)

    {

        if (is_object($class)) {

            $class = get_class($class);

        }

        $this->_class = $class;

        return $this;

    }

    /**

     * Get callback class

     *

     * @return string|null

     */

    public function getClass()

    {

        return $this->_class;

    }

    /**

     * Set callback function

     *

     * @param  string $function

     * @return Zend_Server_Method_Callback

     */

    public function setFunction($function)

    {

        $this->_function = (string) $function;

        $this->setType('function');

        return $this;

    }

    /**

     * Get callback function

     *

     * @return null|string

     */

    public function getFunction()

    {

        return $this->_function;

    }

    /**

     * Set callback class method

     *

     * @param  string $method

     * @return Zend_Server_Method_Callback

     */

    public function setMethod($method)

    {

        $this->_method = $method;

        return $this;

    }

    /**

     * Get callback class  method

     *

     * @return null|string

     */

    public function getMethod()

    {

        return $this->_method;

    }

    /**

     * Set callback type

     *

     * @param  string $type

     * @return Zend_Server_Method_Callback

     * @throws Zend_Server_Exception

     */

    public function setType($type)

    {

        if (!in_array($type, $this->_types)) {

            require_once 'Zend/Server/Exception.php';

            throw new Zend_Server_Exception('Invalid method callback type  passed to ' . __CLASS__ . '::' . __METHOD__);

        }

        $this->_type = $type;

        return $this;

    }

    /**

     * Get callback type

     *

     * @return string

     */

    public function getType()

    {

        return $this->_type;

    }

    /**

     * Cast callback to array

     *

     * @return array

     */

    public function toArray()

    {

        $type = $this->getType();

        $array = array(

            'type' => $type,

        );

        if ('function' == $type) {

            $array['function'] = $this->getFunction();

        } else {

            $array['class']  = $this->getClass();

            $array['method'] = $this->getMethod();

        }

        return $array;

    }

}