package at.gv.egovernment.moa.spss.server.tools;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;

import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;

/**
 * A tool for converting a MOA SPSS Version 1.0 configuration file into
 * a Version 1.3 configuration file.
 * 
 * @author Gregor Karlinger
 * @version $Id$
 */
public class ConfigTool
{
 	public static void main(String[] args)
  {  
    if (args == null || args.length != 2)
    {
      System.out.println("Usage: ConfigTool <MOA.SPSS.1-0.ConfigFile.xml> <MOA.SPSS.1-3.ConfigFile.xml>");
      System.out.println("  <MOA.SPSS.1-0.ConfigFile.xml> ... Old config file to be transformed");
      System.out.println("  <MOA.SPSS.1-3.ConfigFile.xml> ... New config file resulting from the transform");
      System.exit(-1);
    }
 	  
 	  try
    {
 	    TransformerFactory tFactory = TransformerFactory.newInstance();
 	    Transformer transformer = tFactory.newTransformer(new StreamSource(
 	      ConfigTool.class.getResourceAsStream("/resources/tools/ConfigurationMapper.xsl")));
      transformer.transform(new StreamSource(args[0]), new StreamResult(new FileOutputStream(args[1])));
    	
    	System.out.println("Successfully mapped configuration file.");
    }
    catch (TransformerConfigurationException e)
    {
      System.err.println("An error occurred during mapping the configuration file:");
      System.err.println("  Cannot initialize XSLT transform.");
      System.err.println("  " + e.getMessage());
    }
    catch (FileNotFoundException e)
    {
      System.err.println("An error occurred during mapping the configuration file:");
      System.err.println("  There is a problem with the filename for the new configuration file.");
      System.err.println("  " + e.getMessage());
    }
    catch (TransformerException e)
    {
      System.err.println("An error occurred during mapping the configuration file:");
      System.err.println("  " + e.getMessage());
    }
  }
}