Not able to write to multidimensional arrays using Milo SDK

[jchirantan]

Hi @kevinherron,

I am using latest version of Milo SDK i.e., v_1.1.0
I want to write to specific index of an element which is 2D array.

I am passing array of values in writeValues() and index range I have set is "1,1:3". But I am getting Bad_IndexRangeInvalid error.
I also tried passing 2D array of values in writeValues(), but then also, it didn't work.

May I know what is the exact way of passing index range and DataValue if I want to write to multidimensional array (Matrix).

[kevinherron]

What are you trying to write? "1,1:3" isn't a valid index range. Either specify a range for both dimensions (1:3,1:3), or specify a single element in both (1,1).

[jchirantan]

Hi @kevinherron ,I want to write 3 elements from 1st row i.e. array[1][1], array[1][2] and array[1][3]

[kevinherron]

This works for me:

    NodeId nodeId = NodeId.parse("ns=2;s=CTT.Static.AllProfiles.Matrix.Int32Matrix");

    String indexRange = "1,1:3";
    int[][] is = {{9, 9, 9}};
    Variant v = Variant.ofMatrix(Matrix.ofInt32(is));

    WriteResponse response = client.write(
        List.of(
            new WriteValue(nodeId, AttributeId.Value.uid(), indexRange, DataValue.valueOnly(v))));

    System.out.println(Arrays.toString(response.getResults()));

but if the server you are connected to returns Bad_IndexRangeInvalid that is out of your control.

[jchirantan]

@kevinherron, How can we generalise this Matrix.ofInt32() method? Like is there Matrix.ofObject() or something?

[kevinherron]

Use one of the Matrix constructors instead. You lose type safety.

[jchirantan]

Thanks. I will check and let you know