/*

 * Copyright 2003-2005 Sun Microsystems, Inc.  All Rights Reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code 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

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 *

 */

import javax.xml.parsers.DocumentBuilder;

import javax.xml.parsers.DocumentBuilderFactory;

import javax.xml.parsers.FactoryConfigurationError;

import javax.xml.parsers.ParserConfigurationException;

import org.xml.sax.SAXException;

import org.xml.sax.SAXParseException;

import org.w3c.dom.Document;

import org.w3c.dom.DOMException;

// For write operation

import javax.xml.transform.Transformer;

import javax.xml.transform.TransformerException;

import javax.xml.transform.TransformerFactory;

import javax.xml.transform.TransformerConfigurationException;

import javax.xml.transform.dom.DOMSource;

import javax.xml.transform.stream.StreamSource;

import javax.xml.transform.stream.StreamResult;

import java.io.*;

public class jvmtiGen

{

    /**

     * Write out usage and exit.

     */

    private static void showUsage() {

        System.err.println("usage:");

        System.err.println("  java jvmtiGen " +

                           "-IN <input XML file name> " +

                           "-XSL <XSL file> " +

                           "-OUT <output file name> " +

                           "[-PARAM <name> <expression> ...]");

        System.exit(0);         // There is no returning from showUsage()

    }

    // Global value so it can be ref'd by the tree-adapter

    static Document document;

    public static void main (String argv [])

    {

        String inFileName=null;

        String xslFileName=null;

        String outFileName=null;

        java.util.Vector<String> params=new java.util.Vector<String>();

        for (int ii = 0; ii < argv.length; ii++) {

            if (argv[ii].equals("-IN")) {

                inFileName = argv[++ii];

            } else if (argv[ii].equals("-XSL")) {

                xslFileName = argv[++ii];

            } else if (argv[ii].equals("-OUT")) {

                outFileName = argv[++ii];

            } else if (argv[ii].equals("-PARAM")) {

                if (ii + 2 < argv.length) {

                    String name = argv[++ii];

                    params.addElement(name);

                    String expression = argv[++ii];

                    params.addElement(expression);

                } else {

                    showUsage();

                }

            } else {

                showUsage();

            }

        }

        if (inFileName==null || xslFileName==null || outFileName==null){

            showUsage();

        }

        /*

         * Due to JAXP breakage in some intermediate Tiger builds, the

         * com.sun.org.apache..... parser may throw an exception:

         *   com.sun.org.apache.xml.internal.utils.WrappedRuntimeException:

         *     org.apache.xalan.serialize.SerializerToText

         *

         * To work around the problem, this program uses the

         * org.apache.xalan....  version if it is available.  It is

         * available in J2SE 1.4.x and early builds of 1.5 (Tiger).

         * It was removed at the same time the thrown exception issue

         * above was fixed, so if the class is not found we can proceed

         * and use the default parser.

         */

        final String parserProperty =

            "javax.xml.transform.TransformerFactory";

        final String workaroundParser =

            "org.apache.xalan.processor.TransformerFactoryImpl";

        try {

            java.lang.Class cls = java.lang.Class.forName(workaroundParser);

            /*

             * If we get here, we found the class.  Use it.

             */

            System.setProperty(parserProperty, workaroundParser);

            System.out.println("Info: jvmtiGen using " + parserProperty +

                               " = " + workaroundParser);

        } catch (ClassNotFoundException cnfex) {

            /*

             * We didn't find workaroundParser.  Ignore the

             * exception and proceed with default settings.

             */

        }

        DocumentBuilderFactory factory =

            DocumentBuilderFactory.newInstance();

        factory.setNamespaceAware(true);

        factory.setValidating(true);

        try {

            File datafile   = new File(inFileName);

            File stylesheet = new File(xslFileName);

            DocumentBuilder builder = factory.newDocumentBuilder();

            document = builder.parse(datafile);

            // Use a Transformer for output

            TransformerFactory tFactory =

                TransformerFactory.newInstance();

            StreamSource stylesource = new StreamSource(stylesheet);

            Transformer transformer = tFactory.newTransformer(stylesource);

            for (int ii = 0; ii < params.size(); ii += 2){

                transformer.setParameter((String) params.elementAt(ii),

                                         (String) params.elementAt(ii + 1));

            }

            DOMSource source = new DOMSource(document);

            PrintStream ps = new PrintStream( new FileOutputStream(outFileName));

            StreamResult result = new StreamResult(ps);

            transformer.transform(source, result);

        } catch (TransformerConfigurationException tce) {

           // Error generated by the parser

           System.out.println ("\n** Transformer Factory error");

           System.out.println("   " + tce.getMessage() );

           // Use the contained exception, if any

           Throwable x = tce;

           if (tce.getException() != null)

               x = tce.getException();

           x.printStackTrace();

        } catch (TransformerException te) {

           // Error generated by the parser

           System.out.println ("\n** Transformation error");

           System.out.println("   " + te.getMessage() );

           // Use the contained exception, if any

           Throwable x = te;

           if (te.getException() != null)

               x = te.getException();

           x.printStackTrace();

         } catch (SAXException sxe) {

           // Error generated by this application

           // (or a parser-initialization error)

           Exception  x = sxe;

           if (sxe.getException() != null)

               x = sxe.getException();

           x.printStackTrace();

        } catch (ParserConfigurationException pce) {

            // Parser with specified options can't be built

            pce.printStackTrace();

        } catch (IOException ioe) {

           // I/O error

           ioe.printStackTrace();

        }

    } // main

}