/*
   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;

import org.freedesktop.dbus.exceptions.DBusException;

import java.util.Vector;

public class MethodReturn extends Message {
    MethodReturn() {
    }

    public MethodReturn(String dest, long replyserial, String sig, Object... args) throws DBusException {
        this(null, dest, replyserial, sig, args);
    }

    public MethodReturn(String source, String dest, long replyserial, String sig, Object... args) throws DBusException {
        super(Message.Endian.BIG, Message.MessageType.METHOD_RETURN, (byte) 0);

        headers.put(Message.HeaderField.REPLY_SERIAL, replyserial);

        Vector<Object> hargs = new Vector<Object>();
        hargs.add(new Object[]{Message.HeaderField.REPLY_SERIAL, new Object[]{ArgumentType.UINT32_STRING, replyserial}});

        if (null != source) {
            headers.put(Message.HeaderField.SENDER, source);
            hargs.add(new Object[]{Message.HeaderField.SENDER, new Object[]{ArgumentType.STRING_STRING, source}});
        }

        if (null != dest) {
            headers.put(Message.HeaderField.DESTINATION, dest);
            hargs.add(new Object[]{Message.HeaderField.DESTINATION, new Object[]{ArgumentType.STRING_STRING, dest}});
        }

        if (null != sig) {
            hargs.add(new Object[]{Message.HeaderField.SIGNATURE, new Object[]{ArgumentType.SIGNATURE_STRING, sig}});
            headers.put(Message.HeaderField.SIGNATURE, sig);
            setArgs(args);
        }

        byte[] blen = new byte[4];
        appendBytes(blen);
        append("ua(yv)", serial, hargs.toArray());
        pad((byte) 8);

        long c = bytecounter;
        if (null != sig) append(sig, args);
        marshallint(bytecounter - c, blen, 0, 4);
    }

    public MethodReturn(MethodCall mc, String sig, Object... args) throws DBusException {
        this(null, mc, sig, args);
    }

    public MethodReturn(String source, MethodCall mc, String sig, Object... args) throws DBusException {
        this(source, mc.getSource(), mc.getSerial(), sig, args);
        this.call = mc;
    }

    MethodCall call;

    public MethodCall getCall() {
        return call;
    }

    protected void setCall(MethodCall call) {
        this.call = call;
    }
}