LibXmlDomReader.hxx

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/*
 * Copyright (c) 2001-2004 MUSIC TECHNOLOGY GROUP (MTG)
 *                         UNIVERSITAT POMPEU FABRA
 *
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */
#ifndef LibXmlDomReader_hxx
#define LibXmlDomReader_hxx

#include "XmlStorageErr.hxx"

#include <string>
#include <list>
#include <sstream>
#include "Assert.hxx"
#include <libxml++/parsers/domparser.h>

namespace CLAM
{

class LibXmlDomReader
{
        xmlpp::DomParser * parser;
        public:
                LibXmlDomReader()
                {
                        // TODO: This is a hack for xerces bug on adoptNode, parser should be local variable
                        // This should be done in the read method itself when the xerces but is solved
                        parser = new xmlpp::DomParser;
                }
                ~LibXmlDomReader()
                {
                        // TODO: This is a hack for xerces bug on adoptNode, parser should be local variable
                        if (parser) delete parser;
                }
                // TODO: This is a hack parser should be local variable
                xmlpp::DomParser * adoptParser()
                {
                        xmlpp::DomParser * temp = parser;
                        parser = 0;
                        return temp;
                }
                xmlpp::Document * read(std::istream & target)
                {
                        if (target.fail()) throw XmlStorageErr("Unable to open the document source");
                        parser->set_validate(false);
                        parser->set_substitute_entities();
                        try
                        {
                                parser->parse_stream(target);
                        }
                        catch (xmlpp::parse_error & e)
                        {
                                throw XmlStorageErr(
                                        std::string("\nXML Parser Errors:\n")+e.what()+"\n");
                        }
                        xmlpp::Document *doc = parser->get_document();
                        CLAM_ASSERT(doc,"No errors but document not loaded!");
                        return doc;
                }
};



}
#endif//LibXmlDomReader_hxx