TransparentFile.class.php

Go to the documentation of this file.
00001 <?php
00002 /***************************************************************************
00003  *   Copyright (C) 2007 by Ivan Y. Khvostishkov                            *
00004  *                                                                         *
00005  *   This program is free software; you can redistribute it and/or modify  *
00006  *   it under the terms of the GNU Lesser General Public License as        *
00007  *   published by the Free Software Foundation; either version 3 of the    *
00008  *   License, or (at your option) any later version.                       *
00009  *                                                                         *
00010  ***************************************************************************/
00011 
00012     final class TransparentFile
00013     {
00014         private $path       = null;
00015         private $rawData    = null;
00016         
00017         private $tempFile   = null;
00018         
00022         public static function create()
00023         {
00024             return new self;
00025         }
00026         
00030         public function setPath($path)
00031         {
00032             if (!is_readable($path))
00033                 throw new WrongArgumentException(
00034                     "cannot open source file {$path}"
00035                 );
00036             
00037             $this->path = $path;
00038             
00039             $this->tempFile = null;
00040             $this->rawData = null;
00041             
00042             return $this;
00043         }
00044         
00045         public function getPath()
00046         {
00047             if (!$this->path && $this->rawData) {
00048                 $this->tempFile = new TempFile();
00049                 
00050                 $this->path = $this->tempFile->getPath();
00051                 
00052                 file_put_contents($this->path, $this->rawData);
00053             }
00054             
00055             return $this->path;
00056         }
00057         
00061         public function setRawData($rawData)
00062         {
00063             $this->rawData = $rawData;
00064             
00065             $this->tempFile = null;
00066             $this->path = null;
00067             
00068             return $this;
00069         }
00070         
00071         public function getRawData()
00072         {
00073             if (!$this->rawData && $this->path) {
00074                 $this->rawData = file_get_contents($this->path);
00075             }
00076             
00077             return $this->rawData;
00078         }
00079         
00080         public function getSize()
00081         {
00082             if ($this->rawData)
00083                 return strlen($this->rawData);
00084             elseif ($this->path)
00085                 return filesize($this->path);
00086             
00087             return null;
00088         }
00089     }
00090 ?>