Hello @terrypacker, thank you for answering! :)
I am using:
<dependency>
<groupId>com.infiniteautomation</groupId>
<artifactId>bacnet4j</artifactId>
<version>5.0.2</version>
</dependency>
As I followd the stacktrace I found in the "DefaultTransport" that at the line 769 "Segmentation" is needed. So the "Segmentation" is the object which is null in the "extended" class.
If I try:
static class Listener extends DeviceEventAdapter {
@Override
public void iAmReceived(RemoteDevice d) {
//Not null
d.getSegmentationSupported();
Device device = new Device(localDevice,d.getInstanceNumber(),d.getAddress());
//Here happens a null pointer
device.getSegmentationSupported();
}
}
Therefore I was thinking of override this property and tried this:
public class DeviceTest {
static LocalDevice localDevice;
public static void main(String[] args) throws Exception {
int localDevice_ID = 10001;
IpNetworkBuilder ipNetworkBuilder = new IpNetworkBuilder();
ipNetworkBuilder.withLocalBindAddress(IpNetwork.DEFAULT_BIND_IP);
ipNetworkBuilder.withBroadcast("255.255.255.255", IpNetwork.BVLC_TYPE);
ipNetworkBuilder.withPort(47808);
DefaultTransport transport = new DefaultTransport(ipNetworkBuilder.build());
localDevice = new LocalDevice(localDevice_ID, transport);
localDevice.getEventHandler().addListener(new Listener());
localDevice.initialize();
localDevice.startRemoteDeviceDiscovery();
}
static class Listener extends DeviceEventAdapter {
@Override
public void iAmReceived(RemoteDevice d) {
Device device = new Device(localDevice, d.getInstanceNumber(), d.getAddress(), d.getSegmentationSupported());
try {
Map<PropertyIdentifier, Encodable> values = RequestUtils.getProperties(
localDevice, device, device.getObjectIdentifier(),null,
PropertyIdentifier.objectList);
System.out.println(values);
} catch (BACnetException e) {
e.printStackTrace();
}
}
}
static class Device extends RemoteDevice{
Segmentation segmentation;
public Device(LocalDevice localDevice, int instanceNumber, Address address, Segmentation segmentation) {
super(localDevice, instanceNumber, address);
this.segmentation = segmentation;
}
@Override
public Segmentation getSegmentationSupported() {
return this.segmentation;
}
}
}
But I am running in a new exception:
10:32:31.350 [BACnet4J transport for device 10001] ERROR com.serotonin.bacnet4j.transport.DefaultTransport - Error during send: OutgoingConfirmed [maxAPDULengthAccepted=-1, segmentationSupported=segmented-both, service=ReadPropertyRequest [objectIdentifier=device 2098177, propertyIdentifier=object-list, propertyArrayIndex=null], consumer=com.serotonin.bacnet4j.transport.ServiceFutureImpl@36f5e9d5, address=Address [networkNumber=0, macAddress=[c0,a8,1,b1,ba,c0]], linkService=null]
java.lang.NegativeArraySizeException: -7
at com.serotonin.bacnet4j.transport.DefaultTransport$OutgoingConfirmed.sendImpl(DefaultTransport.java:392)
at com.serotonin.bacnet4j.transport.DefaultTransport$Outgoing.send(DefaultTransport.java:336)
at com.serotonin.bacnet4j.transport.DefaultTransport.run(DefaultTransport.java:486)
at java.base/java.lang.Thread.run(Thread.java:830)
10:32:31.350 [BACnet4J transport for device 10001] ERROR com.serotonin.bacnet4j.transport.DefaultTransport - Original send stack
java.lang.Exception: null
at com.serotonin.bacnet4j.transport.DefaultTransport.send(DefaultTransport.java:292)
at com.serotonin.bacnet4j.transport.DefaultTransport.send(DefaultTransport.java:283)
at com.serotonin.bacnet4j.LocalDevice.send(LocalDevice.java:989)
at com.serotonin.bacnet4j.util.RequestUtils.sendOneAtATime(RequestUtils.java:425)
at com.serotonin.bacnet4j.util.RequestUtils.readProperties(RequestUtils.java:396)
at com.serotonin.bacnet4j.util.RequestUtils.readProperties(RequestUtils.java:257)
at com.serotonin.bacnet4j.util.RequestUtils.getProperties(RequestUtils.java:141)
at com.serotonin.bacnet4j.util.RequestUtils.getProperties(RequestUtils.java:136)
at com.bacnetbrowser.schoko.DeviceTest$Listener.iAmReceived(DeviceTest.java:41)
at com.serotonin.bacnet4j.event.DeviceEventHandler.fireIAmReceived(DeviceEventHandler.java:97)
at com.serotonin.bacnet4j.service.unconfirmed.IAmRequest.lambda$handle$0(IAmRequest.java:118)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:830)
This time there sems a problem with the getMaxAPDULengthAccepted() of the Remote Device so I overrided this property as well:
public class DeviceTest {
static LocalDevice localDevice;
public static void main(String[] args) throws Exception {
int localDevice_ID = 10001;
IpNetworkBuilder ipNetworkBuilder = new IpNetworkBuilder();
ipNetworkBuilder.withLocalBindAddress(IpNetwork.DEFAULT_BIND_IP);
ipNetworkBuilder.withBroadcast("255.255.255.255", IpNetwork.BVLC_TYPE);
ipNetworkBuilder.withPort(47808);
DefaultTransport transport = new DefaultTransport(ipNetworkBuilder.build());
localDevice = new LocalDevice(localDevice_ID, transport);
localDevice.getEventHandler().addListener(new Listener());
localDevice.initialize();
localDevice.startRemoteDeviceDiscovery();
}
static class Listener extends DeviceEventAdapter {
@Override
public void iAmReceived(RemoteDevice d) {
Device device = new Device(localDevice, d.getInstanceNumber(), d.getAddress(), d.getSegmentationSupported());
try {
Map<PropertyIdentifier, Encodable> values = RequestUtils.getProperties(
localDevice, device, device.getObjectIdentifier(),null,
PropertyIdentifier.objectList);
System.out.println(values);
} catch (BACnetException e) {
e.printStackTrace();
}
}
}
static class Device extends RemoteDevice{
Segmentation segmentation;
int maxAPDULengthAccepted = 1476;
public Device(LocalDevice localDevice, int instanceNumber, Address address, Segmentation segmentation) {
super(localDevice, instanceNumber, address);
this.segmentation = segmentation;
}
@Override
public Segmentation getSegmentationSupported() {
return this.segmentation;
}
@Override
public int getMaxAPDULengthAccepted() {
return maxAPDULengthAccepted;
}
}
}
This is working but I do not know if I am on the right way.
BR
Andreas
