Browse for HasTypeDefinition References

Scratch.java

import org.eclipse.milo.opcua.sdk.client.OpcUaClient;
import org.eclipse.milo.opcua.stack.core.NodeIds;
import org.eclipse.milo.opcua.stack.core.UaException;
import org.eclipse.milo.opcua.stack.core.types.builtin.unsigned.UInteger;
import org.eclipse.milo.opcua.stack.core.types.enumerated.BrowseDirection;
import org.eclipse.milo.opcua.stack.core.types.enumerated.BrowseResultMask;
import org.eclipse.milo.opcua.stack.core.types.enumerated.NodeClass;
import org.eclipse.milo.opcua.stack.core.types.structured.BrowseDescription;
import org.eclipse.milo.opcua.stack.core.types.structured.BrowseResult;
import org.eclipse.milo.opcua.stack.core.types.structured.ReferenceDescription;

import static java.util.Objects.requireNonNull;
import static org.eclipse.milo.opcua.stack.core.types.builtin.unsigned.Unsigned.uint;

class Scratch {
    public static void main(String[] args) throws UaException {
        var client = OpcUaClient.create("opc.tcp://localhost:4840");
        client.connect();

        browseWithNodeClassMask(client, uint(NodeClass.ObjectType.getValue() | NodeClass.VariableType.getValue()));
        browseWithNodeClassMask(client, uint(0));
    }

    private static void browseWithNodeClassMask(OpcUaClient client, UInteger mask) throws UaException {
        System.out.println("Browsing with NodeClass mask: " + mask);

        BrowseResult result = client.browse(new BrowseDescription(
            NodeIds.Server_ServerStatus,
            BrowseDirection.Forward,
            NodeIds.HasTypeDefinition,
            false,
            mask,
            uint(BrowseResultMask.All.getValue())
        ));

        ReferenceDescription[] references = requireNonNull(result.getReferences());

        if (references.length > 0) {
            for (int i = 0; i < references.length; i++) {
                System.out.printf("  Reference[%d]:%n", i);
                System.out.println("    NodeId: " + references[i].getNodeId());
                System.out.println("    BrowseName: " + references[i].getBrowseName());
                System.out.println("    DisplayName: " + references[i].getDisplayName());
                System.out.println("    NodeClass: " + references[i].getNodeClass());
                System.out.println("    TypeDefinition: " + references[i].getTypeDefinition());
            }
        } else {
            System.out.println("  No references found");
        }
    }

}