Caller.java

/*
   D-Bus Java Implementation
   Copyright (c) 2005-2006 Matthew Johnson

   This program is free software; you can redistribute it and/or modify it
   under the terms of either the GNU Lesser General Public License Version 2 or the
   Academic Free Licence Version 2.1.

   Full licence texts are included in the COPYING file with this program.
*/
package org.freedesktop.dbus.bin;

import java.lang.reflect.Constructor;
import java.lang.reflect.Type;
import java.util.Arrays;
import java.util.Vector;
import java.io.File;
import org.freedesktop.dbus.BusAddress;
import org.freedesktop.dbus.Error;
import org.freedesktop.dbus.Marshalling;
import org.freedesktop.dbus.Message;
import org.freedesktop.dbus.MethodCall;
import org.freedesktop.dbus.Transport;
import cx.ath.matthew.debug.Debug;

public class Caller
{
   @SuppressWarnings("unchecked")
   public static void main(String[] args) 
   {
      try { 
         if (Debug.debug) {
            Debug.setHexDump(true);
            Debug.loadConfig(new File("debug.conf"));
         }
         if (args.length < 4)  {
            System.out.println ("Syntax: Caller <dest> <path> <interface> <method> [<sig> <args>]");
            System.exit(1);
         }
         String addr = System.getenv("DBUS_SESSION_BUS_ADDRESS");
         BusAddress address = new BusAddress(addr);
         Transport conn = new Transport(address);

         Message m = new MethodCall("org.freedesktop.DBus", "/org/freedesktop/DBus", "org.freedesktop.DBus", "Hello", (byte) 0, null);;
         conn.mout.writeMessage(m);

         if ("".equals(args[2])) args[2] = null;
         if (args.length == 4) 
            m = new MethodCall(args[0], args[1], args[2], args[3], (byte) 0, null);
         else {
            Vector<Type> lts = new Vector<Type>();
            Marshalling.getJavaType(args[4],lts, -1);
            Type[] ts = lts.toArray(new Type[0]);
            Object[] os = new Object[args.length-5];
            for (int i = 5; i < args.length; i++) {
               if (ts[i-5] instanceof Class) {
                  try {
                     Constructor c = ((Class) ts[i-5]).getConstructor(String.class);
                     os[i-5] = c.newInstance(args[i]);
                  } catch (Exception e) {
                     os[i-5] = args[i];
                  }
               } else
                  os[i-5] = args[i];
            }
            m = new MethodCall(args[0], args[1], args[2], args[3], (byte) 0, args[4], os);
         }
         long serial = m.getSerial();
         conn.mout.writeMessage(m);
         do {
            m = conn.min.readMessage();
         } while (serial != m.getReplySerial());
         if (m instanceof Error) ((Error) m).throwException();
         else {
            Object[] os = m.getParameters();
            System.out.println(Arrays.deepToString(os));
         }
      } catch (Exception e) {
         System.out.println (e.getClass().getSimpleName()+": "+e.getMessage());
         System.exit(1);
      }
   }
}