TransparentFile.class.php

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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 /* $Id: TransparentFile.class.php 4687 2007-12-09 18:57:18Z voxus $ */
00012 
00013     final class TransparentFile
00014     {
00015         private $path       = null;
00016         private $rawData    = null;
00017         
00018         private $tempFile   = null;
00019         
00023         public static function create()
00024         {
00025             return new self;
00026         }
00027         
00031         public function setPath($path)
00032         {
00033             if (!is_readable($path))
00034                 throw new WrongArgumentException(
00035                     "cannot open source file {$path}"
00036                 );
00037             
00038             $this->path = $path;
00039             
00040             $this->tempFile = null;
00041             $this->rawData = null;
00042             
00043             return $this;
00044         }
00045         
00046         public function getPath()
00047         {
00048             if (!$this->path && $this->rawData) {
00049                 $this->tempFile = new TempFile();
00050                 
00051                 $this->path = $this->tempFile->getPath();
00052                 
00053                 file_put_contents($this->path, $this->rawData);
00054             }
00055             
00056             return $this->path;
00057         }
00058         
00062         public function setRawData($rawData)
00063         {
00064             $this->rawData = $rawData;
00065             
00066             $this->tempFile = null;
00067             $this->path = null;
00068             
00069             return $this;
00070         }
00071         
00072         public function getRawData()
00073         {
00074             if (!$this->rawData && $this->path) {
00075                 $this->rawData = file_get_contents($this->path);
00076             }
00077             
00078             return $this->rawData;
00079         }
00080         
00081         public function getSize()
00082         {
00083             if ($this->rawData)
00084                 return strlen($this->rawData);
00085             elseif ($this->path)
00086                 return filesize($this->path);
00087             
00088             return null;
00089         }
00090     }
00091 ?>

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