node-opcua-server
Version:
pure nodejs OPCUA SDK - module server
82 lines • 4.39 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.validateFilter = validateFilter;
/**
* @module node-opcua-server
*/
const node_opcua_assert_1 = require("node-opcua-assert");
const node_opcua_data_model_1 = require("node-opcua-data-model");
const node_opcua_data_model_2 = require("node-opcua-data-model");
const node_opcua_nodeid_1 = require("node-opcua-nodeid");
const node_opcua_service_filter_1 = require("node-opcua-service-filter");
const node_opcua_service_subscription_1 = require("node-opcua-service-subscription");
const node_opcua_status_code_1 = require("node-opcua-status-code");
const node_opcua_basic_types_1 = require("node-opcua-basic-types");
const node_opcua_debug_1 = require("node-opcua-debug");
const warningLog = (0, node_opcua_debug_1.make_warningLog)(__filename);
function isNumberDataType(node) {
const n = node.dataType;
if (n.namespace === 0 && n.identifierType === node_opcua_nodeid_1.NodeIdType.NUMERIC && n.value < 22) {
switch (n.value) {
case node_opcua_basic_types_1.DataType.Float:
case node_opcua_basic_types_1.DataType.Double:
case node_opcua_basic_types_1.DataType.Byte:
case node_opcua_basic_types_1.DataType.SByte:
case node_opcua_basic_types_1.DataType.Int16:
case node_opcua_basic_types_1.DataType.Int32:
case node_opcua_basic_types_1.DataType.Int64:
case node_opcua_basic_types_1.DataType.UInt16:
case node_opcua_basic_types_1.DataType.UInt32:
case node_opcua_basic_types_1.DataType.UInt64:
return true;
default:
return false;
}
}
const dataType = node.addressSpace.findDataType(node.dataType);
const dataTypeNumber = node.addressSpace.findDataType("Number");
return dataType.isSubtypeOf(dataTypeNumber);
}
function __validateDataChangeFilter(filter, itemToMonitor, node) {
(0, node_opcua_assert_1.assert)(itemToMonitor.attributeId === node_opcua_data_model_1.AttributeIds.Value);
if (node.nodeClass !== node_opcua_data_model_2.NodeClass.Variable) {
return node_opcua_status_code_1.StatusCodes.BadNodeIdInvalid;
}
if (filter.deadbandType !== node_opcua_service_subscription_1.DeadbandType.None) {
// if node is not Numerical=> DataChangeFilter
(0, node_opcua_assert_1.assert)(node.dataType instanceof node_opcua_nodeid_1.NodeId);
if (!isNumberDataType(node)) {
return node_opcua_status_code_1.StatusCodes.BadFilterNotAllowed;
}
}
if (filter.deadbandType === node_opcua_service_subscription_1.DeadbandType.Percent) {
if (filter.deadbandValue < 0 || filter.deadbandValue > 100) {
return node_opcua_status_code_1.StatusCodes.BadDeadbandFilterInvalid;
}
// node must also have a valid euRange
if (!node.getChildByName("EURange", 0)) {
warningLog(" node has no euRange ! Dead band Percent cannot be used on node " + node.nodeId.toString());
return node_opcua_status_code_1.StatusCodes.BadMonitoredItemFilterUnsupported;
}
}
return node_opcua_status_code_1.StatusCodes.Good;
}
function validateFilter(filter, itemToMonitor, node) {
// handle filter information
if (filter && filter instanceof node_opcua_service_filter_1.EventFilter && itemToMonitor.attributeId !== node_opcua_data_model_1.AttributeIds.EventNotifier) {
// invalid filter on Event
return node_opcua_status_code_1.StatusCodes.BadFilterNotAllowed;
}
if (filter && filter instanceof node_opcua_service_filter_1.DataChangeFilter && itemToMonitor.attributeId !== node_opcua_data_model_1.AttributeIds.Value) {
// invalid DataChange filter on non Value Attribute
return node_opcua_status_code_1.StatusCodes.BadFilterNotAllowed;
}
if (filter && itemToMonitor.attributeId !== node_opcua_data_model_1.AttributeIds.EventNotifier && itemToMonitor.attributeId !== node_opcua_data_model_1.AttributeIds.Value) {
return node_opcua_status_code_1.StatusCodes.BadFilterNotAllowed;
}
if (filter instanceof node_opcua_service_filter_1.DataChangeFilter) {
return __validateDataChangeFilter(filter, itemToMonitor, node);
}
return node_opcua_status_code_1.StatusCodes.Good;
}
//# sourceMappingURL=validate_filter.js.map