/*
 * Created on 17 Aug 2007
 *
 * Copyright (C) 2007 Royal Library of Sweden.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser 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.
 */
package se.kb.oai.pmh;

import java.util.LinkedList;
import java.util.List;

import org.dom4j.Node;
import org.w3c.dom.Document;

public class RecordsList extends ResponseBase {

    private static final String RECORD_XPATH = "oai:ListRecords/oai:record";
    
    private List<Record> records;
    
    public RecordsList(Document document) throws ErrorResponseException {
        super(document);
        
        this.records = new LinkedList<Record>();
        for (Node record : xpath.selectNodes(RECORD_XPATH)) {
            records.add(new Record(document, record));
        }      
    }
    
    public int size() {
        return records.size();
    }
    
    public List<Record> asList() {
        return records;
    }
    
    public ResumptionToken getResumptionToken() {
        if (super.resumptionToken == null 
                || super.resumptionToken.getId() == null  
                || super.resumptionToken.getId().length() == 0)
            return null;
        
        return super.resumptionToken;
    }
}