dom-parseLicenseTable.php

<?php
/***********************************************************
 Copyright (C) 2010 Hewlett-Packard Development Company, L.P.

 This program is free software; you can redistribute it and/or
 modify it under the terms of the GNU General Public License
 version 2 as published by the Free Software Foundation.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along
 with this program; if not, write to the Free Software Foundation, Inc.,
 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 ***********************************************************/

class domParseLicenseTbl
{
  public $page;
  public $hList = array();
  public $noRows = FALSE;
  public $emptyTable = FALSE;
  private $tableId;
  private $title;

  function __construct($page,$tblId,$title=1)
  {
    if (empty ($page)) { return; }
    $this->page = $page;
    if (strlen($tblId) == 0) { return; }
    $this->tableId = $tblId;
    $this->title = $title;
  }
  function parseLicenseTbl()
  {
    /*
     * Each table row has 3 td's in it. First is the license count, second
     * is the show link and third is the license name.
     */

    $dom = new domDocument;
    @$dom->loadHTML($this->page);
    /*** discard white space ***/
    $dom->preserveWhiteSpace = false;
    $table = $dom->getElementById($this->tableId);
    if(empty($table)) {
      $this->emptyTable = TRUE;
      //print "DPLTDB: table is empty, can't find table! with table id of:$this->tableId\n";
      return($this->hList=array());
    }

    foreach ($table->childNodes as $tblChildNode)
    {
      $histogram = array();
      foreach($tblChildNode->childNodes as $childNode){
        if($childNode->nodeName == 'td'){
          if(is_numeric($childNode->nodeValue)) {
            $histogram['count'] = trim($childNode->nodeValue);
          }
          if ($childNode->nodeValue == 'Show') {
            $anchorList = $childNode->getElementsByTagName('a');
            foreach($anchorList as $anchorEle) {
              $histogram['showLink'] = $anchorEle->getAttribute('href');
            }
          }
          if(is_string($childNode->nodeValue)) {
            $histogram['textOrLink'] = trim($childNode->nodeValue);
          }
        }
      } // foreach($tblChildNode
      $this->hList[] = $histogram;
      $histogram = array();
    } // foreach
    // for tables with titles, the first row is empty as no childNodes match
    // what we are looking for, remove the first row.
    if($this->title)
    {
      // remove empty 1st entry
      unset($this->hList[0]);
    }
    if(empty($this->hList)) {
      $this->noRows = TRUE;
    }
  } // parseLicenseTbl
}
?>