XmlQueryParser.class.php

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<?php
/* Copyright (C) NAVER <http://www.navercorp.com> */

if(!defined('__XE_LOADED_XML_CLASS__'))
{
    define('__XE_LOADED_XML_CLASS__', 1);
}

class XmlQueryParser extends XmlParser
{

    function __construct()
    {

    }

    function &getInstance()
    {
        static $theInstance = NULL;
        if(!isset($theInstance))
        {
            $theInstance = new XmlQueryParser();
        }
        return $theInstance;
    }

    function &parse_xml_query($query_id, $xml_file, $cache_file)
    {
        // Read xml file
        $xml_obj = $this->getXmlFileContent($xml_file);

        // insert, update, delete, select action
        $action = strtolower($xml_obj->query->attrs->action);
        if(!$action)
        {
            return;
        }

        // Write query cache file
        $parser = new QueryParser($xml_obj->query);
        FileHandler::writeFile($cache_file, $parser->toString());

        return $parser;
    }

    function parse($query_id = NULL, $xml_file = NULL, $cache_file = NULL)
    {
        $this->parse_xml_query($query_id, $xml_file, $cache_file);
    }

    function getXmlFileContent($xml_file)
    {
        $buff = FileHandler::readFile($xml_file);
        $xml_obj = parent::parse($buff);
        if(!$xml_obj)
        {
            return;
        }
        unset($buff);
        return $xml_obj;
    }

}
/* End of file XmlQueryParser.class.php */
/* Location: ./classes/xml/XmlQueryParser.class.php */