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/framework/vendor/zend/Zend/Json/Server/Cache.php

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PHP | 102 lines | 38 code | 10 blank | 54 comment | 10 complexity | f0c83e556711f956fc4d43fb252f70c4 MD5 | raw file
  1<?php
  2/**
  3 * Zend Framework
  4 *
  5 * LICENSE
  6 *
  7 * This source file is subject to the new BSD license that is bundled
  8 * with this package in the file LICENSE.txt.
  9 * It is also available through the world-wide-web at this URL:
 10 * http://framework.zend.com/license/new-bsd
 11 * If you did not receive a copy of the license and are unable to
 12 * obtain it through the world-wide-web, please send an email
 13 * to license@zend.com so we can send you a copy immediately.
 14 *
 15 * @category   Zend
 16 * @package    Zend_Json
 17 * @subpackage Server
 18 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
 19 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 20 * @version    $Id: Cache.php 20096 2010-01-06 02:05:09Z bkarwin $
 21 */
 22
 23/** Zend_Server_Cache */
 24require_once 'Zend/Server/Cache.php';
 25
 26/**
 27 * Zend_Json_Server_Cache: cache Zend_Json_Server server definition and SMD
 28 *
 29 * @category   Zend
 30 * @package    Zend_Json
 31 * @subpackage Server
 32 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
 33 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 34 */
 35class Zend_Json_Server_Cache extends Zend_Server_Cache
 36{
 37    /**
 38     * Cache a service map description (SMD) to a file
 39     *
 40     * Returns true on success, false on failure
 41     *
 42     * @param  string $filename
 43     * @param  Zend_Json_Server $server
 44     * @return boolean
 45     */
 46    public static function saveSmd($filename, Zend_Json_Server $server)
 47    {
 48        if (!is_string($filename)
 49            || (!file_exists($filename) && !is_writable(dirname($filename))))
 50        {
 51            return false;
 52        }
 53
 54        if (0 === @file_put_contents($filename, $server->getServiceMap()->toJson())) {
 55            return false;
 56        }
 57
 58        return true;
 59    }
 60
 61    /**
 62     * Retrieve a cached SMD
 63     *
 64     * On success, returns the cached SMD (a JSON string); an failure, returns
 65     * boolean false.
 66     *
 67     * @param  string $filename
 68     * @return string|false
 69     */
 70    public static function getSmd($filename)
 71    {
 72        if (!is_string($filename)
 73            || !file_exists($filename)
 74            || !is_readable($filename))
 75        {
 76            return false;
 77        }
 78
 79
 80        if (false === ($smd = @file_get_contents($filename))) {
 81            return false;
 82        }
 83
 84        return $smd;
 85    }
 86
 87    /**
 88     * Delete a file containing a cached SMD
 89     *
 90     * @param  string $filename
 91     * @return bool
 92     */
 93    public static function deleteSmd($filename)
 94    {
 95        if (is_string($filename) && file_exists($filename)) {
 96            unlink($filename);
 97            return true;
 98        }
 99
100        return false;
101    }
102}