/*
 *                 Sun Public License Notice
 * 
 * The contents of this file are subject to the Sun Public License
 * Version 1.0 (the "License"). You may not use this file except in
 * compliance with the License. A copy of the License is available at
 * http://www.sun.com/
 * 
 * The Original Code is NetBeans. The Initial Developer of the Original
 * Code is Sun Microsystems, Inc. Portions Copyright 1997-2003 Sun
 * Microsystems, Inc. All Rights Reserved.
 */

package org.netbeans.modules.tomcat5.ide;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.UnknownHostException;
import java.util.*;
import org.netbeans.api.web.dd.*;
import org.netbeans.modules.j2ee.deployment.plugins.api.InstanceProperties;
import org.netbeans.modules.tomcat5.TomcatFactory;
import org.netbeans.modules.tomcat5.TomcatManager;

import org.openide.filesystems.*;
import org.openide.nodes.Node;
import org.openide.modules.ModuleInfo;
import org.openide.util.*;

import org.openide.ErrorManager;
import org.openide.modules.InstalledFileLocator;
import org.openide.util.NbBundle;
import org.xml.sax.SAXException;


/** Debug support addition for Tomcat5
 *
 * @author Martin Grebac
 */
public class DebugSupport {
        
    private static final String JSP_SERVLET_NAME  = "jsp";                          //NOI18N
    private static final String JSP_SERVLET_CLASS = "org.apache.jasper.servlet.JspServlet"; //NOI18N

    private static final String MAPPED_PARAM_NAME =  "mappedfile"; //NOI18N
    private static final String MAPPED_PARAM_VALUE = "true"; //NOI18N

    public static void allowDebugging(TomcatManager tm) throws IOException, SAXException {
        String url = TomcatFactory.tomcatUriPrefix + tm.getUri();
        
        // find the web.xml file
        File webXML = getDefaultWebXML(tm);
        if (webXML == null) {
            ErrorManager.getDefault().notify(ErrorManager.INFORMATIONAL, new Exception(url));
            return;
        }
        WebApp webApp = DDProvider.getDefault().getDDRoot(webXML);
        if (webApp == null) {
            ErrorManager.getDefault().notify(ErrorManager.INFORMATIONAL, new Exception(url));
            return;
        }
        boolean needsSave = setMappedProperty(webApp);
        if (needsSave) {
            OutputStream os = new FileOutputStream(webXML);
            try {
                webApp.write(os);
            } finally {
                os.close();
            }
        }
    }
    
    private static File getDefaultWebXML(TomcatManager tm) {
        File cb = tm.getCatalinaBaseDir();
        if (cb == null)
            cb = tm.getCatalinaHomeDir();
        File webXML = new File(cb, "conf" + File.separator + "web.xml");
        if (webXML.exists())
            return webXML;
        return null;
    }
    
    private static boolean setMappedProperty(WebApp webApp) {

        boolean changed=false;
        boolean isServlet=false;
        
        Servlet[] servlets = webApp.getServlet();
        int i;
        for(i=0;i