Not understand how to know the objectType value

[Valter Henrique]

I have some objects that I must to know which is the exactly the value of this object, if it's analog OUTPUT or analog INPUT, got it ?

For example:
If you I did this :

            System.out.println("oi.getObjectType().intValue(): " + oi.getObjectType().intValue());
            
            System.out.println("ObjectType.analogOutput.intValue(): " + ObjectType.analogOutput.intValue());
            System.out.println("ObjectType.analogInput.intValue(): " + ObjectType.analogInput.intValue());
            System.out.println("ObjectType.analogValue.intValue(): " + ObjectType.analogValue.intValue());

Which the answer gonna be:

oi.getObjectType().intValue(): 2
ObjectType.analogOutput.intValue(): 1
ObjectType.analogInput.intValue(): 0
ObjectType.analogValue.intValue(): 2

But I need to know if is OUTPUT (1) or INPUT (0).
How can I do that ?

[mlohbihler]

That object, "oi", is not an "output" or an "input"; it is a "value", which is a valid third type of bacnet input. "Value"s are basically both input and output.

[Valter Henrique]

@mlohbihler said:

That object, "oi", is not an "output" or an "input"; it is a "value", which is a valid third type of bacnet input. "Value"s are basically both input and output.
So, what should I do to get the exact type of the object ?
I mean, how do I know if is a analog output or analog input ?

[mlohbihler]

Valter,

You are incorrect in thinking that an analog can only be an input or an output. There are three possible analog types: input, output, and value. Your object is a value.

[Valter Henrique]

@mlohbihler said:

Valter,

You are incorrect in thinking that an analog can only be an input or an output. There are three possible analog types: input, output, and value. Your object is a value.
Ow, got it mlohbihler.

There's some way to get the values from the input and output objects ?

This is how I'm doing to get these values :

    private List<ObjectIdentifier> getListObjectIdentifier(LocalDevice localDevice) throws Exception {
        ReadPropertyRequest rpr = new ReadPropertyRequest(new ObjectIdentifier(ObjectType.device, deviceID), PropertyIdentifier.objectList);
        ReadPropertyAck rpa = (ReadPropertyAck) localDevice.send(isa, null, 1476, Segmentation.segmentedBoth, rpr);

        SequenceOf<ObjectIdentifier> sOis = (SequenceOf<ObjectIdentifier>) rpa.getValue();

        List<ObjectIdentifier> ois = new ArrayList<ObjectIdentifier>();
        for (ObjectIdentifier oi : sOis) {
            ois.add(oi);
        }

        return ois;
    }

[mlohbihler]

Use read property requests with the present value property identifier.

[Valter Henrique]

@mlohbihler said:

Use read property requests with the present value property identifier.

I did as you said :

    public String getPresentValue(LocalDevice localDevice, ObjectIdentifier oid) throws Exception {
        ReadPropertyRequest rpr = new ReadPropertyRequest(oid, PropertyIdentifier.presentValue);
        ReadPropertyAck rpa = (ReadPropertyAck) localDevice.send(isa, null, 1476, Segmentation.segmentedReceive, rpr);

        SequenceOf<ObjectIdentifier> sOis = (SequenceOf<ObjectIdentifier>) rpa.getValue();

        List<ObjectIdentifier> ois = new ArrayList<ObjectIdentifier>();
        for (ObjectIdentifier oi : sOis) {
            System.out.println("--> " + oi.getObjectType().intValue());
        }
        
        
        return rpa.getValue().toString();
    }

But it gives this follow error:

java.lang.ClassCastException: com.serotonin.bacnet4j.type.primitive.Real cannot be cast to com.serotonin.bacnet4j.type.constructed.SequenceOf
	at brainset.bacnet4j.Supervisory.getPresentValue(Supervisory.java:123)

What I'm trying to do is scan my device and know what kind of points I have, if is a analog output, analog input, etc.
And store these points values in my List<...>.