calimero-project/calimero-device

Calimero network stack for a KNX device

calimero-device's Issues

Saving interface object server fails and leaves empty XML file (Windows 10 64-Bit)

I am using the calimero-server on my Windows 10 with a TPUART connection.
Everything seem to work fine except when it comes to saving and load of the interface object server data.

When closing the calimero-server I get the following error:

10:36:43:267 DEBUG calimero.device.knx-server - saving interface object server to file:///C:/Users/User/Documents/calimero-server/knx-server-ios.xml
10:36:43:267 INFO calimero.server.knx-server - knx-server control endpoint COM5 closed
10:36:43:267 TRACE calimero.xml - using StaX XMLStreamWriter com.sun.xml.internal.stream.writers.XMLStreamWriterImpl
10:36:43:267 ERROR calimero.device.knx-server - saving interface object server
tuwien.auto.calimero.xml.KNXMLException: writeStartDocument
        at tuwien.auto.calimero.xml.XmlStreamWriterProxy.writeStartDocument(XmlStreamWriterProxy.java:341)
        at tuwien.auto.calimero.device.ios.InterfaceObjectServer$XmlSerializer.save(InterfaceObjectServer.java:860)
        at tuwien.auto.calimero.device.ios.InterfaceObjectServer$XmlSerializer.saveInterfaceObjects(InterfaceObjectServer.java:846)
        at tuwien.auto.calimero.device.ios.InterfaceObjectServer.saveInterfaceObjects(InterfaceObjectServer.java:256)
        at tuwien.auto.calimero.device.BaseKnxDevice.saveIos(BaseKnxDevice.java:557)
        at tuwien.auto.calimero.device.BaseKnxDevice.close(BaseKnxDevice.java:544)
        at tuwien.auto.calimero.server.knxnetip.KNXnetIPServer.shutdown(KNXnetIPServer.java:776)
        at tuwien.auto.calimero.server.Launcher.close(Launcher.java:672)
        at tuwien.auto.calimero.server.Launcher.quit(Launcher.java:664)
        at tuwien.auto.calimero.server.Launcher.run(Launcher.java:641)
        at tuwien.auto.calimero.server.Launcher.main(Launcher.java:609)
Caused by: javax.xml.stream.XMLStreamException: Underlying stream encoding 'Cp1252' and input paramter for writeStartDocument() method 'UTF-8' do not match.
        at java.xml/com.sun.xml.internal.stream.writers.XMLStreamWriterImpl.verifyEncoding(XMLStreamWriterImpl.java:1246)
        at java.xml/com.sun.xml.internal.stream.writers.XMLStreamWriterImpl.writeStartDocument(XMLStreamWriterImpl.java:1184)
        at java.xml/com.sun.xml.internal.stream.writers.XMLStreamWriterImpl.writeStartDocument(XMLStreamWriterImpl.java:1167)
        at tuwien.auto.calimero.xml.XmlStreamWriterProxy.writeStartDocument(XmlStreamWriterProxy.java:338)
        ... 10 more
10:36:43:283 DEBUG calimero.device.knx-server - saving device memory to C:\Users\User\Documents\calimero-server\knx-server-ios.mem

This leaves an empty "knx-server-ios.xml" file with 0 bytes.

On next startup the calimero-server fails while trying to read the IOS data:

10:56:09:564 DEBUG calimero.device.knx-server - loading interface object server from file:///C:/Users/User/Documents/calimero-server/knx-server-ios.xml
10:56:09:576 TRACE calimero.xml - resolve file:///C:/Users/User/Documents/calimero-server/knx-server-ios.xml
10:56:09:580 TRACE calimero.xml - using StaX XMLStreamReader com.sun.org.apache.xerces.internal.impl.XMLStreamReaderImpl
Exception in thread "main" tuwien.auto.calimero.xml.KNXMLException: ParseError at [row,col]:[1,1]
Message: Premature end of file.
        at tuwien.auto.calimero.xml.XmlStreamReaderProxy.wrapped(XmlStreamReaderProxy.java:204)
        at tuwien.auto.calimero.xml.XmlStreamReaderProxy.nextTag(XmlStreamReaderProxy.java:98)
        at tuwien.auto.calimero.device.ios.InterfaceObjectServer$XmlSerializer.load(InterfaceObjectServer.java:821)
        at tuwien.auto.calimero.device.ios.InterfaceObjectServer$XmlSerializer.loadInterfaceObjects(InterfaceObjectServer.java:802)
        at tuwien.auto.calimero.device.ios.InterfaceObjectServer.load(InterfaceObjectServer.java:221)
        at tuwien.auto.calimero.device.ios.InterfaceObjectServer.loadInterfaceObjects(InterfaceObjectServer.java:207)
        at tuwien.auto.calimero.device.BaseKnxDevice.loadIosFromResource(BaseKnxDevice.java:685)
        at tuwien.auto.calimero.device.BaseKnxDevice.initIos(BaseKnxDevice.java:649)
        at tuwien.auto.calimero.device.BaseKnxDevice.<init>(BaseKnxDevice.java:242)
        at tuwien.auto.calimero.server.knxnetip.KNXnetIPServer.<init>(KNXnetIPServer.java:364)
        at tuwien.auto.calimero.server.Launcher.<init>(Launcher.java:621)
        at tuwien.auto.calimero.server.Launcher.main(Launcher.java:606)
Caused by: javax.xml.stream.XMLStreamException: ParseError at [row,col]:[1,1]
Message: Premature end of file.
        at java.xml/com.sun.org.apache.xerces.internal.impl.XMLStreamReaderImpl.next(XMLStreamReaderImpl.java:652)
        at java.xml/com.sun.org.apache.xerces.internal.impl.XMLStreamReaderImpl.nextTag(XMLStreamReaderImpl.java:1346)
        ... 11 more

Removing the empty knx-server-ios.xml before starting the server makes the server start properly again.

Adding group objects to a device without a predefined group address

Hi!

I am currently trying to implement a KNX device which is based on an existing ETS KNX product database file.
So far, I am able to program the individual address and the full application. ETS-5.7.6 does not complain and shows success.

Now I am trying to add the first group object to the device. Looking at the provided interface of BaseKnxDevice, it seems that I can only add a group object with a group address predefined. The datapoint interface seems to require this.

 public final void addGroupObject(final Datapoint dp, final DataSecurity security, final boolean update) 

My requirement would be to add my own group object by also specifiying the group object index and solely rely on the group addresses that were written by ETS.

Can you give a pointer on how to achieve this?
My current assumption is that this is not possible with the current implementation.