import java.applet.Applet; 
import java.awt.*;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.net.URLConnection;
import java.util.UUID;


import javax.swing.JOptionPane;


@SuppressWarnings("serial")
public class appopen extends Applet {
        
    @Override 
    public void init() {
        
    }//ENDE function..
        
    //Öffnet Datei aus p_path..
    public void openFile (String p_path) {
        
        String pathToFile = p_path;
        File file = null;
        URL fileURL = null;
        Desktop desktop = null;
        
        int FileNameLength = pathToFile.length(); 
        
        String trimedFile = pathToFile.trim().substring(0, 4);
        if (trimedFile.equals("http")) {
            try {
                fileURL = new URL(pathToFile);
                
                URLConnection urlc = fileURL.openConnection();
                InputStream  is = urlc.getInputStream();
                
                UUID uuid = UUID.randomUUID();
                String tmpFileName = uuid.toString();
                int lastDotPosition = pathToFile.lastIndexOf(".");
                String FileEndung = pathToFile.substring(lastDotPosition, FileNameLength);
                //String tmpFolder = System.getProperty("TMP");        //In Sys-Var tmp-Ordner
                
                file = new File("C:\\temp\\" + tmpFileName + "." + FileEndung);             
                FileOutputStream os = new FileOutputStream(file); 
             
                copy( is, os ); 
                
                if ( is != null ) 
                    try { is.close(); } catch ( IOException e ) { } 
                  if ( os != null ) 
                    try { os.close(); } catch ( IOException e ) { } 

            } catch (Exception e1) {
                System.out.print("Bei URL-Convert \n" + e1.getMessage());
                JOptionPane.showMessageDialog(null, "FEHLER \n" + e1.getMessage(), "Fehler", JOptionPane.OK_OPTION);
            }
        } else {
            file = new File(pathToFile);
        }
        
        try {
            desktop = Desktop.getDesktop();
            desktop.open(file);
        } catch (Exception e) {
            JOptionPane.showMessageDialog(null, "Die Datei " + pathToFile + " konnte nicht geöffnet werden \n" + e.getMessage(), "Fehler beim Öffnen", JOptionPane.OK_CANCEL_OPTION);
        }      
    }//ENDE function..
    
    
    static void copy( InputStream in, OutputStream out ) throws IOException 
      { 
        byte[] buffer = new byte[ 0xFFFF ]; 
     
        for ( int len; (len = in.read(buffer)) != -1; )
            try {
                out.write( buffer, 0, len );
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } 
      } 
}