static UA_StatusCode
instantiateObjectNode(UA_Server *server, UA_Session *session,
const UA_NodeId *nodeId, const UA_NodeId *typeId,
UA_InstantiationCallback *instantiationCallback) {
const UA_ObjectTypeNode *typenode = (const UA_ObjectTypeNode*)UA_NodeStore_get(server->nodestore, typeId);
if(!typenode)
return UA_STATUSCODE_BADNODEIDINVALID;
if(typenode->nodeClass != UA_NODECLASS_OBJECTTYPE)
return UA_STATUSCODE_BADNODECLASSINVALID;
/* Add all the child nodes */
UA_BrowseDescription browseChildren;
UA_BrowseDescription_init(&browseChildren);
browseChildren.nodeId = *typeId;
browseChildren.referenceTypeId = UA_NODEID_NUMERIC(0, UA_NS0ID_AGGREGATES);
browseChildren.includeSubtypes = UA_TRUE;
browseChildren.browseDirection = UA_BROWSEDIRECTION_FORWARD;
browseChildren.nodeClassMask = UA_NODECLASS_OBJECT | UA_NODECLASS_VARIABLE | UA_NODECLASS_METHOD;
browseChildren.resultMask = UA_BROWSERESULTMASK_REFERENCETYPEID | UA_BROWSERESULTMASK_NODECLASS;
UA_BrowseResult browseResult;
UA_BrowseResult_init(&browseResult);
// todo: continuation points if there are too many results
Service_Browse_single(server, session, NULL, &browseChildren, 100, &browseResult);
for(size_t i = 0; i < browseResult.referencesSize; i++) {
UA_ReferenceDescription *rd = &browseResult.references[i];
if(rd->nodeClass == UA_NODECLASS_METHOD) {
/* add a reference to the method in the objecttype */
UA_AddReferencesItem item;
UA_AddReferencesItem_init(&item);
item.sourceNodeId = *nodeId;
item.referenceTypeId = rd->referenceTypeId;
item.isForward = UA_TRUE;
item.targetNodeId = rd->nodeId;
item.targetNodeClass = UA_NODECLASS_METHOD;
Service_AddReferences_single(server, session, &item);
} else if(rd->nodeClass == UA_NODECLASS_VARIABLE)
copyExistingVariable(server, session, &rd->nodeId.nodeId, &rd->referenceTypeId, nodeId, instantiationCallback);
else if(rd->nodeClass == UA_NODECLASS_OBJECT)
copyExistingObject(server, session, &rd->nodeId.nodeId, &rd->referenceTypeId, nodeId, instantiationCallback);
}
/* add a hastypedefinition reference */
UA_AddReferencesItem addref;
UA_AddReferencesItem_init(&addref);
addref.sourceNodeId = *nodeId;
addref.referenceTypeId = UA_NODEID_NUMERIC(0, UA_NS0ID_HASTYPEDEFINITION);
addref.isForward = UA_TRUE;
addref.targetNodeId.nodeId = *typeId;
addref.targetNodeClass = UA_NODECLASS_OBJECTTYPE;
Service_AddReferences_single(server, session, &addref);
/* call the constructor */
const UA_ObjectLifecycleManagement *olm = &typenode->lifecycleManagement;
if(olm->constructor)
UA_Server_editNode(server, session, nodeId,
(UA_EditNodeCallback)setObjectInstanceHandle, olm->constructor(*nodeId));
return UA_STATUSCODE_GOOD;
}
UA_StatusCode
Service_DeleteNodes_single(UA_Server *server, UA_Session *session, const UA_NodeId *nodeId,
UA_Boolean deleteReferences) {
UA_MT_CONST UA_Node *node = UA_NodeStore_get(server->nodestore, nodeId);
if(!node)
return UA_STATUSCODE_BADNODEIDINVALID;
if(deleteReferences == UA_TRUE) {
UA_DeleteReferencesItem delItem;
UA_DeleteReferencesItem_init(&delItem);
delItem.deleteBidirectional = UA_FALSE;
delItem.targetNodeId.nodeId = *nodeId;
for(size_t i = 0; i < node->referencesSize; i++) {
delItem.sourceNodeId = node->references[i].targetId.nodeId;
delItem.isForward = node->references[i].isInverse;
Service_DeleteReferences_single(server, session, &delItem);
}
}
/* destroy an object before removing it */
if(node->nodeClass == UA_NODECLASS_OBJECT) {
/* find the object type(s) */
UA_BrowseDescription bd;
UA_BrowseDescription_init(&bd);
bd.browseDirection = UA_BROWSEDIRECTION_INVERSE;
bd.nodeId = *nodeId;
bd.referenceTypeId = UA_NODEID_NUMERIC(0, UA_NS0ID_HASSUBTYPE);
bd.includeSubtypes = UA_TRUE;
bd.nodeClassMask = UA_NODECLASS_OBJECTTYPE;
/* browse type definitions with admin rights */
UA_BrowseResult result;
UA_BrowseResult_init(&result);
Service_Browse_single(server, &adminSession, NULL, &bd, UA_UINT32_MAX, &result);
for(size_t i = 0; i < result.referencesSize; i++) {
/* call the destructor */
UA_ReferenceDescription *rd = &result.references[i];
const UA_ObjectTypeNode *type =
(const UA_ObjectTypeNode*)UA_NodeStore_get(server->nodestore, &rd->nodeId.nodeId);
if(!type)
continue;
if(type->nodeClass != UA_NODECLASS_OBJECTTYPE || !type->lifecycleManagement.destructor)
continue;
/* if there are several types with lifecycle management, call all the destructors */
type->lifecycleManagement.destructor(*nodeId, ((const UA_ObjectNode*)node)->instanceHandle);
}
UA_BrowseResult_deleteMembers(&result);
}
return UA_NodeStore_remove(server->nodestore, nodeId);
}
static UA_StatusCode
instantiateVariableNode(UA_Server *server, UA_Session *session, const UA_NodeId *nodeId,
const UA_NodeId *typeId) {
const UA_ObjectTypeNode *type = (const UA_ObjectTypeNode*)UA_NodeStore_get(server->nodestore, typeId);
if(!type)
return UA_STATUSCODE_BADNODEIDINVALID;
if(type->nodeClass != UA_NODECLASS_VARIABLETYPE)
return UA_STATUSCODE_BADNODECLASSINVALID;
/* get the references to child properties */
UA_BrowseDescription browseChildren;
UA_BrowseDescription_init(&browseChildren);
browseChildren.nodeId = *typeId;
browseChildren.referenceTypeId = UA_NODEID_NUMERIC(0, UA_NS0ID_HASPROPERTY);
browseChildren.includeSubtypes = UA_TRUE;
browseChildren.browseDirection = UA_BROWSEDIRECTION_FORWARD;
browseChildren.nodeClassMask = UA_NODECLASS_VARIABLE;
browseChildren.resultMask = UA_BROWSERESULTMASK_REFERENCETYPEID | UA_BROWSERESULTMASK_NODECLASS;
UA_BrowseResult browseResult;
UA_BrowseResult_init(&browseResult);
// todo: continuation points if there are too many results
Service_Browse_single(server, session, NULL, &browseChildren, 100, &browseResult);
/* add the child properties */
for(size_t i = 0; i < browseResult.referencesSize; i++) {
UA_ReferenceDescription *rd = &browseResult.references[i];
copyExistingVariable(server, session, &rd->nodeId.nodeId, &rd->referenceTypeId, nodeId);
}
/* add a hastypedefinition reference */
UA_AddReferencesItem addref;
UA_AddReferencesItem_init(&addref);
addref.sourceNodeId = *nodeId;
addref.referenceTypeId = UA_NODEID_NUMERIC(0, UA_NS0ID_HASTYPEDEFINITION);
addref.isForward = UA_TRUE;
addref.targetNodeId.nodeId = *typeId;
addref.targetNodeClass = UA_NODECLASS_OBJECTTYPE;
Service_AddReferences_single(server, session, &addref);
return UA_STATUSCODE_GOOD;
}
