<?php
// $Revision: 1.1.2.5 $
// ------------------------------------------------------------------------- //
//  XooNIps - Neuroinformatics Base Platform System                          //
//  Copyright (C) 2005-2011 RIKEN, Japan All rights reserved.                //
//  http://xoonips.sourceforge.jp/                                           //
// ------------------------------------------------------------------------- //
//  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.                                      //
//                                                                           //
//  You may not change or alter any portion of this comment or credits       //
//  of supporting developers from this source code or any supporting         //
//  source code which is considered copyrighted (c) material of the          //
//  original comment or credit authors.                                      //
//                                                                           //
//  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 //
// ------------------------------------------------------------------------- //

class OaidcListRecordsHandler extends ListRecordsHandler{
    function OaidcListRecordsHandler( $_parser, $_baseURL ){
        parent::ListRecordsHandler( $_parser, $_baseURL, 'oai_dc' );
    }
    function __construct( $_parser, $_baseURL ){
        $this->OaidcListRecordsHandler( $_parser, $_baseURL );
    }

    function startElementHandler( $parser, $name, $attrs ){
        if( $this->getElementName( $name ) == 'DC' ) {
            $this -> _namespaces = $this -> getNamespaceArray( $attrs );
            array_push( $this->tagstack, $name );
        }else{
            parent::startElementHandler( $parser, $name, $attrs );
        }
    }
    
    function endElementHandler( $parser, $name ) {
        $support_tags = array(
            'SUBJECT',
            'DESCRIPTION',
            'PUBLISHER',
            'CONTRIBUTOR',
            'DATE',
            'TYPE',
            'FORMAT',
            'IDENTIFIER',
            'SOURCE',
            'LANGUAGE',
            'RELATION',
            'COVERAGE',
            'RIGHTS'
            );
        if( isset($this->tagstack[3])
            && $this->getElementName( $this->tagstack[3] ) == 'HEADER'
            || !in_array( $this->getElementName( end( $this->tagstack ) ),
                          $support_tags ) ){
            parent::endElementHandler( $parser, $name );
        }else if( $this->getElementName( end( $this->tagstack ) ) == 'DATE' ) {
            $this->_creation_date = $this->_cdata_buf;
            $this->search_text[] = $this->_cdata_buf;
                $this->addMetadataField(
                    end( $this->tagstack ), $this->_cdata_buf,
                    XOONIPS_METADATA_CATEGORY_CREATION_DATE);
            array_pop( $this->tagstack );
        }else if($this->getElementName(end($this->tagstack))=='IDENTIFIER'){
            $result = preg_match(
                "/^(s?https?:\\/\\/"
                ."[-_.!~*'\\(\\)a-zA-Z0-9;\\/?:\\@&=+\$,%#]+)/",
                $this->_cdata_buf );
            if( 1 == $result ){
                $this->_resource_url[] = $this->_cdata_buf;
                $this->addMetadataField(
                    end( $this->tagstack ), $this->_cdata_buf,
                    XOONIPS_METADATA_CATEGORY_RESOURCE_LINK);
            }else{
                $this->addMetadataField(
                    end( $this->tagstack ), $this->_cdata_buf);
            }
            array_pop( $this->tagstack );
        }else{
            $this->addMetadataField(end( $this->tagstack ),$this->_cdata_buf);
            array_pop( $this->tagstack );
        }
    }
}

