/*
 * DTDCompletionParser.java
 *
 * Created on February 7, 2007, 7:41 PM
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */
package net.sf.xpontus.codecompletion.xml;

import java.io.FileReader;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.commons.vfs.FileObject;
import org.apache.commons.vfs.VFS;
import org.apache.xerces.impl.dtd.DTDGrammar;
import org.apache.xerces.impl.dtd.XMLDTDLoader;
import org.apache.xerces.xni.parser.XMLInputSource;
import java.io.Reader;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Vector;
import org.apache.xerces.util.XMLResourceIdentifierImpl;
import org.apache.xerces.xni.XMLResourceIdentifier;
import org.apache.xml.resolver.Catalog;
import org.apache.xml.resolver.CatalogManager;
import org.xml.sax.InputSource;


/**
 *
 * @author Yves Zoundi
 */
public class DTDCompletionParser implements ICompletionParser {
    private Log logger = LogFactory.getLog(DTDCompletionParser.class);
    private List tagList = new ArrayList();
    private Map nsTagListMap = new HashMap();

    /** Creates a new instance of DTDCompletionParser */
    public DTDCompletionParser() {
    }

    public void init(List tagList, Map nsTagListMap) {
        this.tagList = tagList;
        this.nsTagListMap = nsTagListMap;
    }

    public void updateCompletionInfo(String pubid, String uri, Reader in) {
        try {
            XMLDTDLoader loader = new XMLDTDLoader() {
                    public void element(java.lang.String elementName,
                        org.apache.xerces.xni.Augmentations augs)
                        throws org.apache.xerces.xni.XNIException {
                        super.element(elementName, augs);
                        if(!tagList.contains(elementName)){
                            tagList.add(elementName);
                        }
                    }
                };

//            FileObject fo = VFS.getManager().resolveFile(uri);
//
//            DTDGrammar grammar = (DTDGrammar) loader.loadGrammar((new XMLInputSource(
//                        pubid, uri, fo.getURL().toExternalForm(), in, null)));
                System.setProperty("xml.catalog.staticCatalog", "true");
        System.setProperty("xml.catalog.files", "C:\\tests\\docbook-xml-4.4\\docbook.cat");
        CatalogManager manager = new CatalogManager();
        Vector catalogs = manager.catalogFiles();
        System.out.println("number of catalogs:" + catalogs.size());
        Catalog catalog = manager.getCatalog();
        pubid = pubid.substring(1, pubid.length()-1);
        System.out.println("public id:" + pubid);
        System.out.println("uri:" + uri);
        String s = manager.getCatalog().resolvePublic(pubid, uri);
        
        s = s.substring(5, s.length());
         
        
        InputSource is = new InputSource(new FileReader(s));
         
        
        XMLResourceIdentifier identifier = new XMLResourceIdentifierImpl();
        identifier.setPublicId(pubid);
        identifier.setLiteralSystemId(s);
        identifier.setBaseSystemId(s);
         
         DTDGrammar grammar = (DTDGrammar) loader.loadGrammar(new XMLInputSource(identifier));
        } catch (Exception ex) {
            ex.printStackTrace();
            ;
        }
    }
}