Notification not working

[Markus]

Hello!

First, thanks for the great XML API to get Data from the eid.

In the current Release 0.0.1.28 you implement the Notification API. So I can receive notify informations after an component changed the value. Maybe a Component named "test01" at gad 0/0/2 switched the value from on to off. So the XML Server should send an notify on port 1028 (default port).

But it doesn't work. Here a simple linknx.xml file:

<?xml version="1.0" ?>
<config>
    <objects>
        <object id="schalter02" gad="0/0/2"  type="1.001">Schalter 02</object>

    </objects>
    <services>
  
        <knxconnection url="ip:192.168.100.10" />
        <xmlserver type="inet" port="1028" />
        
    </services>
    
</config>

So I have a Component called schalter02. I can change the value with <write><object id="schalter02" value="on" /></write> and read with <read>…</read>. Everything works fine.

So if I try so register a notification for the element. <admin><notification><register id=\"schalter02\"/></notification></admin> I get <admin status="success"/>. So it should work. After changing the value with the write command. The logs of the linKNX shows:

2011-05-31 12:35:28  KnxConnection: write(gad=0/0/2, buf, len=2)
2011-05-31 12:35:28  Object: New value on for object schalter02 (type: 1.001)
2011-05-31 12:35:28  Object: New value off for object schalter02 (type: 1.001)
2011-05-31 12:35:28  Object: New value on for object schalter02 (type: 1.001)

The value would be changed, but no notify. I connect with telnet to listen at the port. No result.

I try to listen with java:

socket = new Socket("192.168.100.10", 1028);

                        Writer writer = new StringWriter();
                        in = socket.getInputStream();

                        Reader reader = new BufferedReader(new InputStreamReader(in, "UTF-8"));
                        int n;
                        n = reader.read();
                        while ((n = reader.read()) != -1) {
                            if(n == (char)4) {
                                writer.flush();
                                System.err.println("Message: " + writer.toString());
                                writer = new StringWriter();
                            } else {
                                writer.write(n);
                            }
                        }

No receiving anything. It the Feature not finale or I just had an error in my work flow?

Regards, Markus

[jef2000]

Hi,

The notifications come on the same socket on which you send the "<admin><notification><register id="schalter02"/></notification></admin>" command.

If you use a telnet session on port 1028 to send "<admin><notification><register id="schalter02"/></notification></admin>", just keep the session open and switch the group address on and off. You should see the notification.

For the java example, I guess you just have to get an output  stream from the socket and send "<admin><notification><register id="schalter02"/></notification></admin>" on it, followed by special character 0x04 before you enter the while  loop

Jean-François

[Markus]

Thank you!

Now I send the notification command and listen at the same port. I received every change <notify id='schalter02>off</notify>.

Regards, Markus

[knaller]

Is there a way to do something similar in JavaScript, not Java?

[Markus]

Every languages that supports sockets is possible.

Javascript Socket http://code.google.com/p/jsocket/