helm/xsltd/xaland-java/xaland.java

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