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;
}
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;
}
/* 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);
}
Esempio n. 4
0
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;
}