web/Zend/Cloud/StorageService/Adapter/FileSystem.php
changeset 0 4eba9c11703f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/Zend/Cloud/StorageService/Adapter/FileSystem.php	Mon Dec 13 18:29:26 2010 +0100
@@ -0,0 +1,267 @@
+<?php
+/**
+ * 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_Cloud
+ * @subpackage StorageService
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+
+require_once 'Zend/Cloud/StorageService/Adapter.php';
+require_once 'Zend/Cloud/StorageService/Exception.php';
+
+/**
+ * FileSystem adapter for unstructured cloud storage.
+ *
+ * @category   Zend
+ * @package    Zend_Cloud
+ * @subpackage StorageService
+ * @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_Cloud_StorageService_Adapter_FileSystem implements Zend_Cloud_StorageService_Adapter
+{
+
+    /**
+     * Options array keys for the file system adapter.
+     */
+    const LOCAL_DIRECTORY = 'local_directory';
+
+    /**
+     * The directory for the data
+     * @var string
+     */
+    protected $_directory = null;
+
+    /**
+     * Constructor
+     * 
+     * @param  array|Zend_Config $options 
+     * @return void
+     */
+    public function __construct($options = array()) 
+    {
+        if ($options instanceof Zend_Config) {
+            $options = $options->toArray();
+        }
+
+        if (!is_array($options)) {
+            throw new Zend_Cloud_StorageService_Exception('Invalid options provided');
+        }
+
+        if (isset($options[self::LOCAL_DIRECTORY])) {
+            $this->_directory = $options[self::LOCAL_DIRECTORY];
+        } else {
+            $this->_directory = realpath(sys_get_temp_dir());
+        }
+    }
+
+    /**
+     * Get an item from the storage service.
+     *
+     * TODO: Support streaming
+     *
+     * @param  string $path
+     * @param  array $options
+     * @return false|string
+     */
+    public function fetchItem($path, $options = array()) 
+    {
+        $filepath = $this->_getFullPath($path);
+        $path     = realpath($filepath);
+
+        if (!$path) {
+            return false;
+        }
+
+        return file_get_contents($path);
+    }
+
+    /**
+     * Store an item in the storage service.
+     *
+     * WARNING: This operation overwrites any item that is located at
+     * $destinationPath.
+     *
+     * @TODO Support streams
+     *
+     * @param  string $destinationPath
+     * @param  mixed $data
+     * @param  array $options
+     * @return void
+     */
+    public function storeItem($destinationPath, $data, $options = array()) 
+    {
+        $path = $this->_getFullPath($destinationPath);
+        file_put_contents($path, $data);
+        chmod($path, 0777);
+    }
+
+    /**
+     * Delete an item in the storage service.
+     *
+     * @param  string $path
+     * @param  array $options
+     * @return void
+     */
+    public function deleteItem($path, $options = array()) 
+    {
+        if (!isset($path)) {
+            return;
+        }
+
+        $filepath = $this->_getFullPath($path);
+        if (file_exists($filepath)) {
+            unlink($filepath);
+        }
+    }
+
+    /**
+     * Copy an item in the storage service to a given path.
+     *
+     * WARNING: This operation is *very* expensive for services that do not
+     * support copying an item natively.
+     *
+     * @TODO Support streams for those services that don't support natively
+     *
+     * @param  string $sourcePath
+     * @param  string $destination path
+     * @param  array $options
+     * @return void
+     */
+    public function copyItem($sourcePath, $destinationPath, $options = array()) 
+    {
+        copy($this->_getFullPath($sourcePath), $this->_getFullPath($destinationPath));
+    }
+
+    /**
+     * Move an item in the storage service to a given path.
+     *
+     * WARNING: This operation is *very* expensive for services that do not
+     * support moving an item natively.
+     *
+     * @TODO Support streams for those services that don't support natively
+     *
+     * @param  string $sourcePath
+     * @param  string $destination path
+     * @param  array $options
+     * @return void
+     */
+    public function moveItem($sourcePath, $destinationPath, $options = array()) 
+    {
+        rename($this->_getFullPath($sourcePath), $this->_getFullPath($destinationPath));
+    }
+
+        /**
+     * Rename an item in the storage service to a given name.
+     *
+     *
+     * @param  string $path
+     * @param  string $name
+     * @param  array $options
+     * @return void
+     */
+    public function renameItem($path, $name, $options = null) 
+    {
+        rename(
+            $this->_getFullPath($path), 
+            dirname($this->_getFullPath($path)) . DIRECTORY_SEPARATOR . $name
+        );
+    }
+
+    /**
+     * List items in the given directory in the storage service
+     *
+     * The $path must be a directory
+     *
+     *
+     * @param  string $path Must be a directory
+     * @param  array $options
+     * @return array A list of item names
+     */
+    public function listItems($path, $options = null) 
+    {
+        $listing = scandir($this->_getFullPath($path));
+
+        // Remove the hidden navigation directories
+        $listing = array_diff($listing, array('.', '..'));
+
+        return $listing;
+    }
+
+    /**
+     * Get a key/value array of metadata for the given path.
+     *
+     * @param  string $path
+     * @param  array $options
+     * @return array
+     */
+    public function fetchMetadata($path, $options = array()) 
+    {
+        $fullPath = $this->_getFullPath($path);
+        $metadata = null;
+        if (file_exists($fullPath)) {
+            $metadata = stat(realpath($fullPath));
+        }
+
+        return isset($metadata) ? $metadata : false;
+    }
+
+    /**
+     * Store a key/value array of metadata at the given path.
+     * WARNING: This operation overwrites any metadata that is located at
+     * $destinationPath.
+     *
+     * @param  string $destinationPath
+     * @param  array $options
+     * @return void
+     */
+    public function storeMetadata($destinationPath, $metadata, $options = array()) 
+    {
+        require_once 'Zend/Cloud/OperationNotAvailableException.php';
+        throw new Zend_Cloud_OperationNotAvailableException('Storing metadata not implemented');
+    }
+
+    /**
+     * Delete a key/value array of metadata at the given path.
+     *
+     * @param  string $path
+     * @param  array $options
+     * @return void
+     */
+    public function deleteMetadata($path) 
+    {
+        require_once 'Zend/Cloud/OperationNotAvailableException.php';
+        throw new Zend_Cloud_OperationNotAvailableException('Deleting metadata not implemented');
+    }
+
+    /**
+     * Return the full path for the file.
+     * 
+     * @param string $path
+     * @return string
+     */
+    private function _getFullPath($path) 
+    {
+        return $this->_directory . DIRECTORY_SEPARATOR . $path;
+    }
+
+    /**
+     * Get the concrete client.
+     * @return strings
+     */
+    public function getClient()
+    {
+         return $this->_directory;       
+    }
+}