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   1  <?php
   2  //
   3  // Definition of eZGZIPCompressionHandler class
   4  //
   5  // Created on: <13-Aug-2003 16:20:19 amos>
   6  //
   7  // SOFTWARE NAME: eZ publish
   8  // SOFTWARE RELEASE: 3.9.0
   9  // BUILD VERSION: 17785
  10  // COPYRIGHT NOTICE: Copyright (C) 1999-2006 eZ systems AS
  11  // SOFTWARE LICENSE: GNU General Public License v2.0
  12  // NOTICE: >
  13  //   This program is free software; you can redistribute it and/or
  14  //   modify it under the terms of version 2.0  of the GNU General
  15  //   Public License as published by the Free Software Foundation.
  16  //
  17  //   This program is distributed in the hope that it will be useful,
  18  //   but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  //   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  //   GNU General Public License for more details.
  21  //
  22  //   You should have received a copy of version 2.0 of the GNU General
  23  //   Public License along with this program; if not, write to the Free
  24  //   Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  25  //   MA 02110-1301, USA.
  26  //
  27  //
  28  
  29  /*! \file ezgzipcompressionhandler.php
  30  */
  31  
  32  /*!
  33    \class eZGZIPCompressionHandler ezgzipcompressionhandler.php
  34    \brief Handles files compressed with gzip
  35  
  36    This class is a wrapper of the eZGZIPZLIBCompressionHandler and
  37    eZGZIPShellCompressionHandler classes.
  38  
  39    Duplication of this handler is done by the eZForwardCompressionHandler class.
  40  */
  41  
  42  include_once ( 'lib/ezfile/classes/ezforwardcompressionhandler.php' );
  43  include_once ( 'lib/ezfile/classes/ezgzipzlibcompressionhandler.php' );
  44  include_once ( 'lib/ezfile/classes/ezgzipshellcompressionhandler.php' );
  45  include_once ( 'lib/ezfile/classes/eznocompressionhandler.php' );
  46  
  47  class eZGZIPCompressionHandler extends eZForwardCompressionHandler
  48  {
  49      /*!
  50       See eZCompressionHandler::eZCompressionHandler and eZForwardCompressionHandler::eZForwardCompressionHandler.
  51      */
  52      function eZGZIPCompressionHandler()
  53      {
  54          if ( eZGZIPZLIBCompressionHandler::isAvailable() )
  55              $handler = new eZGZIPZLIBCompressionHandler();
  56          else if ( eZGZIPShellCompressionHandler::isAvailable() )
  57              $handler = new eZGZIPShellCompressionHandler();
  58          else
  59              $handler = new eZNoCompressionHandler();
  60          $this->eZForwardCompressionHandler( $handler,
  61                                              'GZIP', 'gzip' );
  62      }
  63  
  64      /*!
  65       Forwards the compression level to the current handler.
  66      */
  67      function setCompressionLevel( $level )
  68      {
  69          $handler =& $this->handler();
  70          if ( method_exists( $handler, 'setCompressionLevel' ) )
  71              $handler->setCompressionLevel( $level );
  72      }
  73  
  74      /*!
  75       Forwards the request for compression level to the current handler and returns the value.
  76      */
  77      function compressionLevel()
  78      {
  79          $handler =& $this->handler();
  80          if ( method_exists( $handler, 'compressionLevel' ) )
  81              return $handler->compressionLevel();
  82          return false;
  83      }
  84  }
  85  
  86  ?>