<?php
  /**
   * RODS keyval type class. This class is conresponding to iRODS's keyval type
   * @author Sifang Lu <sifang@sdsc.edu>
   * @copyright Copyright &copy; 2007, TBD
   * @package RODSConn
   */
  
  
  require_once("autoload.inc.php");
  
  class RODSKeyValPair
  {
      private $keys;
      private $vals;
  
      public function __construct(array $arr = array())
      {
          $this->keys = array_keys($arr);
          $this->vals = array_values($arr);
      }
  
      public function addPair($key, $val)
      {
          $this->keys[] = $key;
          $this->vals[] = $val;
      }
  
      /**
       * Make a RP_KeyValPair
       * @return RP_KeyValPair a RP_KeyValPair object
       */
      public function makePacket()
      {
          return new RP_KeyValPair(count($this->keys), $this->keys, $this->vals);
      }
  
      /**
       * make a RODSKeyValPair from a RP_KeyValPair
       */
      public static function fromPacket(RP_KeyValPair $RP_KeyValPair)
      {
          $new_keyval = new RODSKeyValPair();
          $new_keyval->keys = $RP_KeyValPair->keyWord;
          $new_keyval->vals = $RP_KeyValPair->svalue;
          return $new_keyval;
      }
  }