source: other-projects/GlamED/trunk/src/org/honours/greenstone/ArchiveFileReader.java@ 26588

package org.honours.greenstone;

import java.io.File;


import org.apache.log4j.Logger;

import org.greenstone.gsdl3.util.GSXML;
import org.greenstone.gsdl3.util.XMLConverter;
import org.w3c.dom.*;

public class ArchiveFileReader {

    static Logger logger = Logger.getLogger(org.honours.greenstone.ArchiveFileReader.class.getName());
    private XMLConverter _xmlConverter;
    private Document _document;
    private String _archiveDocFile;
    
    public ArchiveFileReader(String docXML){
        _xmlConverter = new XMLConverter();
        _archiveDocFile = docXML;
        _document = _xmlConverter.getDOM(new File(_archiveDocFile));
        
    }
    
    public String obtainElementText(String metadataName){
        
        if(metadataName.equals("") || metadataName == null)
            return null;
        
        NodeList nl = _document.getDocumentElement().getElementsByTagName("Description");
        Element description = (Element)nl.item(0);
        
        nl = description.getChildNodes();
        int i = 0;
        
        while(i <= nl.getLength()){
            
            Node node = nl.item(i);
            if(node != null){
            if(node.getNodeType() == Node.ELEMENT_NODE){
                Element e = (Element)node;
                
                if(e.getTagName().equals("Metadata") && e.getAttribute("name")
                        .equals(metadataName)){
                    
                    return GSXML.getNodeText(e);    
                }
            }
            }
            i++;
        }
        
        return null;
    }
}