private void addConfiguredNodes()

in plc4j/tools/opcua-server/src/main/java/org/apache/plc4x/java/opcuaserver/backend/Plc4xNamespace.java [100:179]
70 lines of code
7 McCabe index (conditional complexity)

    private void addConfiguredNodes(UaFolderNode rootNode, DeviceConfiguration c) {
        final List<Tag> tags = c.getTags();
        final String connectionString = c.getConnectionString();
        for (Tag item : tags) {
            logger.info("Adding Tag " + item.getAlias() + " - " + item.getAddress());
            String name = item.getAlias();
            final String tag = item.getAddress();

            Class datatype = null;
            NodeId typeId = Identifiers.String;
            UaVariableNode node = null;
            Variant variant = null;
            try {
                datatype = plc4xServer.getTag(tag, connectionString).getPlcValueType().getDefaultJavaType();
                final int length = (plc4xServer.getTag(tag, connectionString).getArrayInfo().isEmpty()) ? 1 :
                        plc4xServer.getTag(tag, connectionString).getArrayInfo().get(0).getSize();
                typeId = Plc4xCommunication.getNodeId(plc4xServer.getTag(tag, connectionString).getPlcValueType());


                if (length > 1) {
                    node = new UaVariableNode.UaVariableNodeBuilder(getNodeContext())
                            .setNodeId(newNodeId(name))
                            .setAccessLevel(AccessLevel.READ_WRITE)
                            .setUserAccessLevel(AccessLevel.READ_WRITE)
                            .setBrowseName(newQualifiedName(name))
                            .setDisplayName(LocalizedText.english(name))
                            .setDataType(typeId)
                            .setTypeDefinition(Identifiers.BaseDataVariableType)
                            .setValueRank(ValueRank.OneDimension.getValue())
                            .setArrayDimensions(new UInteger[]{uint(length)})
                            .build();

                    Object array = Array.newInstance(datatype, length);
                    for (int j = 0; j < length; j++) {
                        Array.set(array, j, false);
                    }
                    variant = new Variant(array);
                } else {
                    node = new UaVariableNode.UaVariableNodeBuilder(getNodeContext())
                            .setNodeId(newNodeId(name))
                            .setAccessLevel(AccessLevel.READ_WRITE)
                            .setUserAccessLevel(AccessLevel.READ_WRITE)
                            .setBrowseName(newQualifiedName(name))
                            .setDisplayName(LocalizedText.english(name))
                            .setDataType(typeId)
                            .setTypeDefinition(Identifiers.BaseDataVariableType)
                            .build();
                    variant = new Variant(0);
                }

                node.setValue(new DataValue(variant));

                node.getFilterChain().addLast(
                        AttributeFilters.getValue(
                                ctx -> plc4xServer.getValue(ctx, tag, connectionString)
                        )
                );

                node.getFilterChain().addLast(
                        AttributeFilters.setValue(
                                (ctx, value) -> {
                                    if (length > 1) {
                                        plc4xServer.setValue(tag, Arrays.toString((Object[]) value.getValue().getValue()), connectionString);
                                    } else {
                                        plc4xServer.setValue(tag, value.getValue().getValue().toString(), connectionString);
                                    }

                                }
                        )
                );

            } catch (PlcConnectionException e) {
                logger.info("Couldn't find data type");
                System.exit(1);
            }

            getNodeManager().addNode(node);
            rootNode.addOrganizes(node);
        }
    }