helm/xsltd/xaland-java-DOM/xaland_DOM.java

   1 import org.apache.xalan.xslt.*;
   2 import org.w3c.dom.Document;
   3 import java.net.*;
   4 import java.io.*;
   5
   6 public class xaland_DOM {
   7    public static void main(String argv[]) throws  java.io.IOException, java.net.MalformedURLException, org.xml.sax.SAXException
   8    {
   9       int port    = Integer.parseInt(argv[0]);
  10       int port2   = Integer.parseInt(argv[1]);
  11       String xsl1 = argv[2];
  12       String xsl2 = argv[3];
  13       String theory_xsl1 = argv[4];
  14       String theory_xsl2 = argv[5];
  15
  16       XSLTProcessor theory_processor =
  17        XSLTProcessorFactory.getProcessor(new org.apache.xalan.xpath.xdom.XercesLiaison());
  18       StylesheetRoot theory_style1 =
  19          theory_processor.processStylesheet(theory_xsl1);
  20       theory_processor.reset();
  21       StylesheetRoot theory_style2 =
  22          theory_processor.processStylesheet(theory_xsl2);
  23       theory_processor.setStylesheet(theory_style2);
  24
  25       XSLTProcessor processor =
  26        XSLTProcessorFactory.getProcessor(new org.apache.xalan.xpath.xdom.XercesLiaison());
  27       StylesheetRoot style1 = processor.processStylesheet(xsl1);
  28       processor.reset();
  29       StylesheetRoot style2 = processor.processStylesheet(xsl2);
  30       processor.setStylesheet(style2);
  31
  32       DatagramSocket socket = new DatagramSocket(port);
  33
  34       System.out.println("Demon activated on input port " + port +
  35        " and output port " + port2);
  36       while(true) {
  37          System.out.print("Ready...");
  38
  39          /* Warning: the packet must be a fresh one! */
  40          DatagramPacket packet = new DatagramPacket(new byte[1024],1024);
  41          socket.receive(packet);
  42          byte data[] = packet.getData();
  43          int datalen = packet.getLength();
  44          String received = new String(data,0,datalen);
  45
  46          int first = received.indexOf(' ');
  47          int last  = received.lastIndexOf(' ');
  48          String mode = received.substring(0,first);
  49          String input = received.substring(first+1,last);
  50          String output = received.substring(last+1);
  51
  52          System.out.println("request received! Parameters are");
  53          System.out.println("Mode: " + mode + " ");
  54          System.out.println("Input file: \"" + input + "\"");
  55          System.out.println("Output file: \"" + output  + "\"\n");
  56
  57          if ((new File(output)).exists()) {
  58             System.out.println("Using cached version\n");
  59          } else {
  60             FileOutputStream fout = new FileOutputStream(output);
  61             if (mode.equals("cic")) {
  62 Document content_doc = new org.apache.xerces.dom.DocumentImpl();
  63 XSLTResultTarget content = new XSLTResultTarget(content_doc);
  64 /*
  65                processor.setDocumentHandler(style2.getSAXSerializer(fout));
  66                XSLTResultTarget content = new XSLTResultTarget(processor);
  67 */
  68 System.out.print("Prima...\n");
  69                style1.process(new XSLTInputSource(input), content);
  70 System.out.print("Durante...\n");
  71                style2.process(new XSLTInputSource(content_doc),new XSLTResultTarget(fout));
  72 System.out.print("Dopo...\n");
  73             } else if (mode.equals("theory")) {
  74                theory_processor.setDocumentHandler(
  75                   theory_style2.getSAXSerializer(fout));
  76                XSLTResultTarget content =
  77                   new XSLTResultTarget(theory_processor);
  78                theory_style1.process(new XSLTInputSource(input), content);
  79             }
  80          }
  81
  82          InetAddress address = InetAddress.getLocalHost();
  83          DatagramSocket socket2 = new DatagramSocket();
  84
  85          byte buf[] = new byte[0];
  86          DatagramPacket packet2 = new DatagramPacket(buf,0,address,port2);
  87
  88          socket2.send(packet2);
  89       }
  90    }
  91 }