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   1  <?php
   2  /*
   3   *  $Id: Clob.php,v 1.6 2004/07/27 23:15:13 hlellelid Exp $
   4   *
   5   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   6   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   7   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   8   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   9   * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  10   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  11   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  12   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  13   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  14   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  15   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  16   *
  17   * This software consists of voluntary contributions made by many individuals
  18   * and is licensed under the LGPL. For more information please see
  19   * <http://creole.phpdb.org>.
  20   */
  21  
  22  require_once 'creole/util/Lob.php';
  23  
  24  /**
  25   * A class for handling character (ASCII) LOBs.
  26   *
  27   * @author    Hans Lellelid <hans@xmpl.org>
  28   * @version   $Revision: 1.6 $
  29   * @package   creole.util
  30   */
  31  class Clob extends Lob {
  32  
  33      /**
  34       * Read LOB data from file.
  35       * @param string $file Filename may also be specified here (if not specified using setInputFile()).
  36       * @return void
  37       * @throws Exception - if no file specified or error on read.
  38       * @see setInputFile()
  39       */
  40      public function readFromFile($file = null)
  41      {
  42          if ($file !== null) {
  43              $this->setInputFile($file);
  44          }
  45          if (!$this->inFile) {
  46              throw Exception('No file specified for read.');
  47          }
  48          $data = null;
  49          $file = fopen($this->inFile, "rt");
  50          while (!feof($file)) $data .= fgets($file, 4096);
  51          fclose($file);
  52          if ($data === false) {
  53              throw new Exception('Unable to read from file: '.$this->inFile);
  54          }
  55          $this->setContents($data);
  56      }
  57  
  58  
  59      /**
  60       * Write LOB data to file.
  61       * @param string $file Filename may also be specified here (if not set using setOutputFile()).
  62       * @throws Exception - if no file specified, no contents to write, or error on write.
  63       * @see setOutputFile()
  64       */
  65      public function writeToFile($file = null)
  66      {
  67          if ($file !== null) {
  68              $this->setOutputFile($file);
  69          }
  70          if (!$this->outFile) {
  71              throw new Exception('No file specified for write');
  72          }
  73          if ($this->data === null) {
  74              throw new Exception('No data to write to file');
  75          }
  76          $file = fopen($this->inFile, "wt");
  77          if (fputs($file, $this->data) === false)
  78              throw new Exception('Unable to write to file: '.$this->outFile);
  79          fclose($file);
  80      }
  81  
  82      /**
  83       * Dump the contents of the file using fpassthru().
  84       *
  85       * @return void
  86       * @throws Exception if no file or contents.
  87       */
  88      function dump()
  89      {
  90          if (!$this->data) {
  91  
  92              // is there a file name set?
  93              if ($this->inFile) {
  94                  $fp = @fopen($this->inFile, "r");
  95                  if (!$fp) {
  96                      throw new Exception('Unable to open file: '.$this->inFile);
  97                  }
  98                  fpassthru($fp);
  99                  @fclose($fp);
 100              } else {
 101                  throw new Exception('No data to dump');
 102              }
 103  
 104          } else {
 105              echo $this->data;
 106          }
 107  
 108      }
 109  
 110  
 111  
 112  }