--- /dev/null
+<?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_Search_Lucene
+ * @subpackage Storage
+ * @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license http://framework.zend.com/license/new-bsd New BSD License
+ * @version $Id: Filesystem.php 16541 2009-07-07 06:59:03Z bkarwin $
+ */
+
+
+/** Zend_Search_Lucene_Storage_Directory */
+require_once 'Zend/Search/Lucene/Storage/Directory.php';
+
+/** Zend_Search_Lucene_Storage_File_Filesystem */
+require_once 'Zend/Search/Lucene/Storage/File/Filesystem.php';
+
+
+/**
+ * FileSystem implementation of Directory abstraction.
+ *
+ * @category Zend
+ * @package Zend_Search_Lucene
+ * @subpackage Storage
+ * @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license http://framework.zend.com/license/new-bsd New BSD License
+ */
+class Zend_Search_Lucene_Storage_Directory_Filesystem extends Zend_Search_Lucene_Storage_Directory
+{
+ /**
+ * Filesystem path to the directory
+ *
+ * @var string
+ */
+ protected $_dirPath = null;
+
+ /**
+ * Cache for Zend_Search_Lucene_Storage_File_Filesystem objects
+ * Array: filename => Zend_Search_Lucene_Storage_File object
+ *
+ * @var array
+ * @throws Zend_Search_Lucene_Exception
+ */
+ protected $_fileHandlers;
+
+ /**
+ * Default file permissions
+ *
+ * @var integer
+ */
+ protected static $_defaultFilePermissions = 0666;
+
+
+ /**
+ * Get default file permissions
+ *
+ * @return integer
+ */
+ public static function getDefaultFilePermissions()
+ {
+ return self::$_defaultFilePermissions;
+ }
+
+ /**
+ * Set default file permissions
+ *
+ * @param integer $mode
+ */
+ public static function setDefaultFilePermissions($mode)
+ {
+ self::$_defaultFilePermissions = $mode;
+ }
+
+
+ /**
+ * Utility function to recursive directory creation
+ *
+ * @param string $dir
+ * @param integer $mode
+ * @param boolean $recursive
+ * @return boolean
+ */
+
+ public static function mkdirs($dir, $mode = 0777, $recursive = true)
+ {
+ if (($dir === null) || $dir === '') {
+ return false;
+ }
+ if (is_dir($dir) || $dir === '/') {
+ return true;
+ }
+ if (self::mkdirs(dirname($dir), $mode, $recursive)) {
+ return mkdir($dir, $mode);
+ }
+ return false;
+ }
+
+
+ /**
+ * Object constructor
+ * Checks if $path is a directory or tries to create it.
+ *
+ * @param string $path
+ * @throws Zend_Search_Lucene_Exception
+ */
+ public function __construct($path)
+ {
+ if (!is_dir($path)) {
+ if (file_exists($path)) {
+ require_once 'Zend/Search/Lucene/Exception.php';
+ throw new Zend_Search_Lucene_Exception('Path exists, but it\'s not a directory');
+ } else {
+ if (!self::mkdirs($path)) {
+ require_once 'Zend/Search/Lucene/Exception.php';
+ throw new Zend_Search_Lucene_Exception("Can't create directory '$path'.");
+ }
+ }
+ }
+ $this->_dirPath = $path;
+ $this->_fileHandlers = array();
+ }
+
+
+ /**
+ * Closes the store.
+ *
+ * @return void
+ */
+ public function close()
+ {
+ foreach ($this->_fileHandlers as $fileObject) {
+ $fileObject->close();
+ }
+
+ $this->_fileHandlers = array();
+ }
+
+
+ /**
+ * Returns an array of strings, one for each file in the directory.
+ *
+ * @return array
+ */
+ public function fileList()
+ {
+ $result = array();
+
+ $dirContent = opendir( $this->_dirPath );
+ while (($file = readdir($dirContent)) !== false) {
+ if (($file == '..')||($file == '.')) continue;
+
+ if( !is_dir($this->_dirPath . '/' . $file) ) {
+ $result[] = $file;
+ }
+ }
+ closedir($dirContent);
+
+ return $result;
+ }
+
+ /**
+ * Creates a new, empty file in the directory with the given $filename.
+ *
+ * @param string $filename
+ * @return Zend_Search_Lucene_Storage_File
+ * @throws Zend_Search_Lucene_Exception
+ */
+ public function createFile($filename)
+ {
+ if (isset($this->_fileHandlers[$filename])) {
+ $this->_fileHandlers[$filename]->close();
+ }
+ unset($this->_fileHandlers[$filename]);
+ $this->_fileHandlers[$filename] = new Zend_Search_Lucene_Storage_File_Filesystem($this->_dirPath . '/' . $filename, 'w+b');
+
+ // Set file permissions, but don't care about any possible failures, since file may be already
+ // created by anther user which has to care about right permissions
+ @chmod($this->_dirPath . '/' . $filename, self::$_defaultFilePermissions);
+
+ return $this->_fileHandlers[$filename];
+ }
+
+
+ /**
+ * Removes an existing $filename in the directory.
+ *
+ * @param string $filename
+ * @return void
+ * @throws Zend_Search_Lucene_Exception
+ */
+ public function deleteFile($filename)
+ {
+ if (isset($this->_fileHandlers[$filename])) {
+ $this->_fileHandlers[$filename]->close();
+ }
+ unset($this->_fileHandlers[$filename]);
+
+ global $php_errormsg;
+ $trackErrors = ini_get('track_errors'); ini_set('track_errors', '1');
+ if (!@unlink($this->_dirPath . '/' . $filename)) {
+ ini_set('track_errors', $trackErrors);
+ require_once 'Zend/Search/Lucene/Exception.php';
+ throw new Zend_Search_Lucene_Exception('Can\'t delete file: ' . $php_errormsg);
+ }
+ ini_set('track_errors', $trackErrors);
+ }
+
+ /**
+ * Purge file if it's cached by directory object
+ *
+ * Method is used to prevent 'too many open files' error
+ *
+ * @param string $filename
+ * @return void
+ */
+ public function purgeFile($filename)
+ {
+ if (isset($this->_fileHandlers[$filename])) {
+ $this->_fileHandlers[$filename]->close();
+ }
+ unset($this->_fileHandlers[$filename]);
+ }
+
+
+ /**
+ * Returns true if a file with the given $filename exists.
+ *
+ * @param string $filename
+ * @return boolean
+ */
+ public function fileExists($filename)
+ {
+ return isset($this->_fileHandlers[$filename]) ||
+ file_exists($this->_dirPath . '/' . $filename);
+ }
+
+
+ /**
+ * Returns the length of a $filename in the directory.
+ *
+ * @param string $filename
+ * @return integer
+ */
+ public function fileLength($filename)
+ {
+ if (isset( $this->_fileHandlers[$filename] )) {
+ return $this->_fileHandlers[$filename]->size();
+ }
+ return filesize($this->_dirPath .'/'. $filename);
+ }
+
+
+ /**
+ * Returns the UNIX timestamp $filename was last modified.
+ *
+ * @param string $filename
+ * @return integer
+ */
+ public function fileModified($filename)
+ {
+ return filemtime($this->_dirPath .'/'. $filename);
+ }
+
+
+ /**
+ * Renames an existing file in the directory.
+ *
+ * @param string $from
+ * @param string $to
+ * @return void
+ * @throws Zend_Search_Lucene_Exception
+ */
+ public function renameFile($from, $to)
+ {
+ global $php_errormsg;
+
+ if (isset($this->_fileHandlers[$from])) {
+ $this->_fileHandlers[$from]->close();
+ }
+ unset($this->_fileHandlers[$from]);
+
+ if (isset($this->_fileHandlers[$to])) {
+ $this->_fileHandlers[$to]->close();
+ }
+ unset($this->_fileHandlers[$to]);
+
+ if (file_exists($this->_dirPath . '/' . $to)) {
+ if (!unlink($this->_dirPath . '/' . $to)) {
+ require_once 'Zend/Search/Lucene/Exception.php';
+ throw new Zend_Search_Lucene_Exception('Delete operation failed');
+ }
+ }
+
+ $trackErrors = ini_get('track_errors');
+ ini_set('track_errors', '1');
+
+ $success = @rename($this->_dirPath . '/' . $from, $this->_dirPath . '/' . $to);
+ if (!$success) {
+ ini_set('track_errors', $trackErrors);
+ require_once 'Zend/Search/Lucene/Exception.php';
+ throw new Zend_Search_Lucene_Exception($php_errormsg);
+ }
+
+ ini_set('track_errors', $trackErrors);
+
+ return $success;
+ }
+
+
+ /**
+ * Sets the modified time of $filename to now.
+ *
+ * @param string $filename
+ * @return void
+ */
+ public function touchFile($filename)
+ {
+ return touch($this->_dirPath .'/'. $filename);
+ }
+
+
+ /**
+ * Returns a Zend_Search_Lucene_Storage_File object for a given $filename in the directory.
+ *
+ * If $shareHandler option is true, then file handler can be shared between File Object
+ * requests. It speed-ups performance, but makes problems with file position.
+ * Shared handler are good for short atomic requests.
+ * Non-shared handlers are useful for stream file reading (especial for compound files).
+ *
+ * @param string $filename
+ * @param boolean $shareHandler
+ * @return Zend_Search_Lucene_Storage_File
+ */
+ public function getFileObject($filename, $shareHandler = true)
+ {
+ $fullFilename = $this->_dirPath . '/' . $filename;
+
+ if (!$shareHandler) {
+ return new Zend_Search_Lucene_Storage_File_Filesystem($fullFilename);
+ }
+
+ if (isset( $this->_fileHandlers[$filename] )) {
+ $this->_fileHandlers[$filename]->seek(0);
+ return $this->_fileHandlers[$filename];
+ }
+
+ $this->_fileHandlers[$filename] = new Zend_Search_Lucene_Storage_File_Filesystem($fullFilename);
+ return $this->_fileHandlers[$filename];
+ }
+}
+