198 Zeilen
5,4 KiB
PHP
198 Zeilen
5,4 KiB
PHP
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<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_Filter
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* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id$
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*/
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/**
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* @see Zend_Filter_Interface
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*/
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require_once 'Zend/Filter/Interface.php';
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/**
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* Compresses a given string
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*
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* @category Zend
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* @package Zend_Filter
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* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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class Zend_Filter_Compress implements Zend_Filter_Interface
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{
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/**
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* Compression adapter
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*/
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protected $_adapter = 'Gz';
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/**
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* Compression adapter constructor options
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*/
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protected $_adapterOptions = array();
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/**
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* Class constructor
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*
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* @param string|array $options (Optional) Options to set
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*/
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public function __construct($options = null)
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{
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if ($options instanceof Zend_Config) {
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$options = $options->toArray();
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}
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if (is_string($options)) {
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$this->setAdapter($options);
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} elseif ($options instanceof Zend_Filter_Compress_CompressInterface) {
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$this->setAdapter($options);
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} elseif (is_array($options)) {
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$this->setOptions($options);
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}
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}
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/**
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* Set filter setate
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*
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* @param array $options
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* @return Zend_Filter_Compress
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*/
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public function setOptions(array $options)
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{
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foreach ($options as $key => $value) {
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if ($key == 'options') {
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$key = 'adapterOptions';
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}
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$method = 'set' . ucfirst($key);
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if (method_exists($this, $method)) {
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$this->$method($value);
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}
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}
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return $this;
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}
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/**
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* Returns the current adapter, instantiating it if necessary
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*
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* @return string
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*/
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public function getAdapter()
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{
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if ($this->_adapter instanceof Zend_Filter_Compress_CompressInterface) {
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return $this->_adapter;
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}
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$adapter = $this->_adapter;
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$options = $this->getAdapterOptions();
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if (!class_exists($adapter)) {
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require_once 'Zend/Loader.php';
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if (Zend_Loader::isReadable('Zend/Filter/Compress/' . ucfirst($adapter) . '.php')) {
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$adapter = 'Zend_Filter_Compress_' . ucfirst($adapter);
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}
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Zend_Loader::loadClass($adapter);
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}
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$this->_adapter = new $adapter($options);
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if (!$this->_adapter instanceof Zend_Filter_Compress_CompressInterface) {
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require_once 'Zend/Filter/Exception.php';
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throw new Zend_Filter_Exception("Compression adapter '" . $adapter . "' does not implement Zend_Filter_Compress_CompressInterface");
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}
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return $this->_adapter;
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}
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/**
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* Retrieve adapter name
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*
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* @return string
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*/
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public function getAdapterName()
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{
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return $this->getAdapter()->toString();
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}
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/**
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* Sets compression adapter
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*
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* @param string|Zend_Filter_Compress_CompressInterface $adapter Adapter to use
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* @return Zend_Filter_Compress
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*/
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public function setAdapter($adapter)
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{
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if ($adapter instanceof Zend_Filter_Compress_CompressInterface) {
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$this->_adapter = $adapter;
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return $this;
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}
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if (!is_string($adapter)) {
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require_once 'Zend/Filter/Exception.php';
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throw new Zend_Filter_Exception('Invalid adapter provided; must be string or instance of Zend_Filter_Compress_CompressInterface');
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}
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$this->_adapter = $adapter;
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return $this;
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}
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/**
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* Retrieve adapter options
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*
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* @return array
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*/
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public function getAdapterOptions()
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{
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return $this->_adapterOptions;
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}
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/**
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* Set adapter options
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*
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* @param array $options
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* @return void
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*/
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public function setAdapterOptions(array $options)
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{
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$this->_adapterOptions = $options;
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return $this;
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}
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/**
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* Calls adapter methods
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*
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* @param string $method Method to call
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* @param string|array $options Options for this method
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*/
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public function __call($method, $options)
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{
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$adapter = $this->getAdapter();
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if (!method_exists($adapter, $method)) {
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require_once 'Zend/Filter/Exception.php';
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throw new Zend_Filter_Exception("Unknown method '{$method}'");
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}
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return call_user_func_array(array($adapter, $method), $options);
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}
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/**
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* Defined by Zend_Filter_Interface
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*
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* Compresses the content $value with the defined settings
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*
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* @param string $value Content to compress
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* @return string The compressed content
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*/
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public function filter($value)
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{
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return $this->getAdapter()->compress($value);
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}
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}
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