Hi,

I have doubts in order to know how can I add more code and do another things on the onWriteValue method and the listener still works, because right now, on the second write to the Server, the listener does not tell me that had writes. This is my code:

@Override
public boolean onWriteValue(ServiceContext serviceContext, NodeId nodeId, UaValueNode node,
NumericRange indexRange,
DataValue dataValue) throws StatusException {
logger.info(“onWriteValue: nodeId=” + nodeId + (node != null ? ” node=” + node.getBrowseName() : “”)
+ (indexRange != null ? ” indexRange=” + indexRange : “”) + ” value=” + dataValue);
//Object to JSON Serialization – Heartbeat
String node_Write = node.getBrowseName().toString();
if (node_Write.equals(“2:Write_to_json”) ) {
System.out.println(“Write to JSON = True”);
UnderlyingSystem_t underlyingSystem_t = new UnderlyingSystem_t();
try {
underlyingSystem_t.Heartbeat(myserver, myNodeManager2);
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
return false;
}

This is my Heartbeat method from my UnderlyingSystem_t Class:

public boolean Heartbeat(UaServer server, NodeManagerUaNode myNodeManager) throws FileNotFoundException{
IoManagerUaNode ioManagerUaNode = new IoManagerUaNode(myNodeManager);
NodeId nodeIdName = new NodeId(2,”Name”);
try {
DataValue val = new DataValue(new Variant(new Boolean(false)));
ioManagerUaNode.writeAttribute(nodeIdWrite , Attributes.Value, null, val);
} catch (StatusException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return false;
}

My method works fine, write the value correctly, but when I write again to the Server, the listener does not make the call to my method again.

Thank you!