static UA_NodeId
findSingleChildNode(UA_QualifiedName targetName,
UA_NodeId referenceTypeId, UA_NodeId startingNode){
UA_NodeId resultNodeId;
UA_RelativePathElement rpe;
UA_RelativePathElement_init(&rpe);
rpe.referenceTypeId = referenceTypeId;
rpe.isInverse = false;
rpe.includeSubtypes = false;
rpe.targetName = targetName;
UA_BrowsePath bp;
UA_BrowsePath_init(&bp);
bp.startingNode = startingNode;
bp.relativePath.elementsSize = 1;
bp.relativePath.elements = &rpe;
UA_BrowsePathResult bpr =
UA_Server_translateBrowsePathToNodeIds(server, &bp);
if(bpr.statusCode != UA_STATUSCODE_GOOD ||
bpr.targetsSize < 1)
return UA_NODEID_NULL;
if(UA_NodeId_copy(&bpr.targets[0].targetId.nodeId, &resultNodeId) != UA_STATUSCODE_GOOD){
UA_BrowsePathResult_deleteMembers(&bpr);
return UA_NODEID_NULL;
}
UA_BrowsePathResult_deleteMembers(&bpr);
return resultNodeId;
}
static UA_StatusCode eventSetup(UA_NodeId *eventNodeId) {
UA_StatusCode retval;
retval = UA_Server_createEvent(server, eventType, eventNodeId);
ck_assert_uint_eq(retval, UA_STATUSCODE_GOOD);
// add a severity to the event
UA_Variant value;
UA_RelativePathElement rpe;
UA_RelativePathElement_init(&rpe);
rpe.referenceTypeId = UA_NODEID_NUMERIC(0, UA_NS0ID_HASPROPERTY);
rpe.isInverse = false;
rpe.includeSubtypes = false;
UA_BrowsePath bp;
UA_BrowsePath_init(&bp);
bp.startingNode = *eventNodeId;
bp.relativePath.elementsSize = 1;
bp.relativePath.elements = &rpe;
rpe.targetName = UA_QUALIFIEDNAME(0, "Severity");
UA_BrowsePathResult bpr = UA_Server_translateBrowsePathToNodeIds(server, &bp);
// number with no special meaning
UA_UInt16 eventSeverity = 1000;
UA_Variant_setScalar(&value, &eventSeverity, &UA_TYPES[UA_TYPES_UINT16]);
UA_Server_writeValue(server, bpr.targets[0].targetId.nodeId, value);
UA_BrowsePathResult_deleteMembers(&bpr);
//add a message to the event
rpe.targetName = UA_QUALIFIEDNAME(0, "Message");
bpr = UA_Server_translateBrowsePathToNodeIds(server, &bp);
UA_LocalizedText message = UA_LOCALIZEDTEXT("en-US", "Generated Event");
UA_Variant_setScalar(&value, &message, &UA_TYPES[UA_TYPES_LOCALIZEDTEXT]);
UA_Server_writeValue(server, bpr.targets[0].targetId.nodeId, value);
UA_BrowsePathResult_deleteMembers(&bpr);
return retval;
}
END_TEST
START_TEST(Service_TranslateBrowsePathsToNodeIds) {
UA_Client *client = UA_Client_new(UA_ClientConfig_default);
UA_StatusCode retVal = UA_Client_connect(client, "opc.tcp://localhost:4840");
ck_assert_int_eq(retVal, UA_STATUSCODE_GOOD);
// Just for testing we want to translate the following path to its corresponding node id
// /Objects/Server/ServerStatus/State
// Equals the following node IDs:
// /85/2253/2256/2259
#define BROWSE_PATHS_SIZE 3
char *paths[BROWSE_PATHS_SIZE] = {"Server", "ServerStatus", "State"};
UA_UInt32 ids[BROWSE_PATHS_SIZE] = {UA_NS0ID_ORGANIZES, UA_NS0ID_HASCOMPONENT, UA_NS0ID_HASCOMPONENT};
UA_BrowsePath browsePath;
UA_BrowsePath_init(&browsePath);
browsePath.startingNode = UA_NODEID_NUMERIC(0, UA_NS0ID_OBJECTSFOLDER);
browsePath.relativePath.elements = (UA_RelativePathElement*)UA_Array_new(BROWSE_PATHS_SIZE, &UA_TYPES[UA_TYPES_RELATIVEPATHELEMENT]);
browsePath.relativePath.elementsSize = BROWSE_PATHS_SIZE;
for(size_t i = 0; i < BROWSE_PATHS_SIZE; i++) {
UA_RelativePathElement *elem = &browsePath.relativePath.elements[i];
elem->referenceTypeId = UA_NODEID_NUMERIC(0, ids[i]);
elem->targetName = UA_QUALIFIEDNAME_ALLOC(0, paths[i]);
}
UA_TranslateBrowsePathsToNodeIdsRequest request;
UA_TranslateBrowsePathsToNodeIdsRequest_init(&request);
request.browsePaths = &browsePath;
request.browsePathsSize = 1;
UA_TranslateBrowsePathsToNodeIdsResponse response = UA_Client_Service_translateBrowsePathsToNodeIds(client, request);
ck_assert_int_eq(response.responseHeader.serviceResult, UA_STATUSCODE_GOOD);
ck_assert_int_eq(response.resultsSize, 1);
ck_assert_int_eq(response.results[0].targetsSize, 1);
ck_assert_int_eq(response.results[0].targets[0].targetId.nodeId.identifierType, UA_NODEIDTYPE_NUMERIC);
ck_assert_int_eq(response.results[0].targets[0].targetId.nodeId.identifier.numeric, UA_NS0ID_SERVER_SERVERSTATUS_STATE);
UA_BrowsePath_deleteMembers(&browsePath);
UA_TranslateBrowsePathsToNodeIdsResponse_deleteMembers(&response);
retVal = UA_Client_disconnect(client);
ck_assert_int_eq(retVal, UA_STATUSCODE_GOOD);
UA_Client_delete(client);
}
/* finds the NodeId of a StateNumber child of a given node id */
static void findChildId(UA_NodeId stateId, UA_NodeId referenceType, const UA_QualifiedName targetName, UA_NodeId *result) {
UA_RelativePathElement rpe;
UA_RelativePathElement_init(&rpe);
rpe.referenceTypeId = referenceType;
rpe.isInverse = false;
rpe.includeSubtypes = false;
rpe.targetName = targetName;
UA_BrowsePath bp;
UA_BrowsePath_init(&bp);
bp.startingNode = stateId;
bp.relativePath.elementsSize = 1;
bp.relativePath.elements = &rpe; //clion complains but is ok
UA_BrowsePathResult bpr = UA_Server_translateBrowsePathToNodeIds(server, &bp);
ck_assert_uint_eq(bpr.statusCode, UA_STATUSCODE_GOOD);
UA_NodeId_copy(&bpr.targets[0].targetId.nodeId, result);
UA_BrowsePathResult_deleteMembers(&bpr);
}
static UA_StatusCode
pumpTypeConstructor(UA_Server *server,
const UA_NodeId *sessionId, void *sessionContext,
const UA_NodeId *typeId, void *typeContext,
const UA_NodeId *nodeId, void **nodeContext) {
UA_LOG_INFO(UA_Log_Stdout, UA_LOGCATEGORY_USERLAND, "New pump created");
/* Find the NodeId of the status child variable */
UA_RelativePathElement rpe;
UA_RelativePathElement_init(&rpe);
rpe.referenceTypeId = UA_NODEID_NUMERIC(0, UA_NS0ID_HASCOMPONENT);
rpe.isInverse = false;
rpe.includeSubtypes = false;
rpe.targetName = UA_QUALIFIEDNAME(1, "Status");
UA_BrowsePath bp;
UA_BrowsePath_init(&bp);
bp.startingNode = *nodeId;
bp.relativePath.elementsSize = 1;
bp.relativePath.elements = &rpe;
UA_BrowsePathResult bpr =
UA_Server_translateBrowsePathToNodeIds(server, &bp);
if(bpr.statusCode != UA_STATUSCODE_GOOD ||
bpr.targetsSize < 1)
return bpr.statusCode;
/* Set the status value */
UA_Boolean status = true;
UA_Variant value;
UA_Variant_setScalar(&value, &status, &UA_TYPES[UA_TYPES_BOOLEAN]);
UA_Server_writeValue(server, bpr.targets[0].targetId.nodeId, value);
UA_BrowsePathResult_clear(&bpr);
/* At this point we could replace the node context .. */
return UA_STATUSCODE_GOOD;
}
