public DBusSignal()

in dbus-java/src/main/java/org/freedesktop/dbus/messages/DBusSignal.java [63:123]
55 lines of code
7 McCabe index (conditional complexity)

    public DBusSignal(String source, String path, String iface, String member, String sig, Object... args)
            throws DBusException {
        super(DBusConnection.getEndianness(), Message.MessageType.SIGNAL, (byte) 0);

        if (null == path || null == member || null == iface) {
            throw new MessageFormatException("Must specify object path, interface and signal name to Signals.");
        }
        getHeaders().put(Message.HeaderField.PATH, path);
        getHeaders().put(Message.HeaderField.MEMBER, member);
        getHeaders().put(Message.HeaderField.INTERFACE, iface);

        List<Object> hargs = new ArrayList<>();
        hargs.add(new Object[] {
                Message.HeaderField.PATH, new Object[] {
                        ArgumentType.OBJECT_PATH_STRING, path
                }
        });
        hargs.add(new Object[] {
                Message.HeaderField.INTERFACE, new Object[] {
                        ArgumentType.STRING_STRING, iface
                }
        });
        hargs.add(new Object[] {
                Message.HeaderField.MEMBER, new Object[] {
                        ArgumentType.STRING_STRING, member
                }
        });

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

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

        blen = new byte[4];
        appendBytes(blen);
        long newSerial = getSerial() + 1;
        setSerial(newSerial);
        append("ua(yv)", newSerial, hargs.toArray());
        pad((byte) 8);

        long counter = getByteCounter();
        if (null != sig) {
            append(sig, args);
        }
        marshallint(getByteCounter() - counter, blen, 0, 4);
        bodydone = true;
    }