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;
}
void
UA_Server_addExistingNode(UA_Server *server, UA_Session *session, UA_Node *node,
const UA_NodeId *parentNodeId, const UA_NodeId *referenceTypeId,
UA_AddNodesResult *result) {
if(node->nodeId.namespaceIndex >= server->namespacesSize) {
result->statusCode = UA_STATUSCODE_BADNODEIDINVALID;
UA_NodeStore_deleteNode(node);
return;
}
const UA_Node *parent = UA_NodeStore_get(server->nodestore, parentNodeId);
if(!parent) {
result->statusCode = UA_STATUSCODE_BADPARENTNODEIDINVALID;
UA_NodeStore_deleteNode(node);
return;
}
const UA_ReferenceTypeNode *referenceType =
(const UA_ReferenceTypeNode *)UA_NodeStore_get(server->nodestore, referenceTypeId);
if(!referenceType) {
result->statusCode = UA_STATUSCODE_BADREFERENCETYPEIDINVALID;
UA_NodeStore_deleteNode(node);
return;
}
if(referenceType->nodeClass != UA_NODECLASS_REFERENCETYPE) {
result->statusCode = UA_STATUSCODE_BADREFERENCETYPEIDINVALID;
UA_NodeStore_deleteNode(node);
return;
}
if(referenceType->isAbstract == UA_TRUE) {
result->statusCode = UA_STATUSCODE_BADREFERENCENOTALLOWED;
UA_NodeStore_deleteNode(node);
return;
}
// todo: test if the referencetype is hierarchical
// todo: namespace index is assumed to be valid
result->statusCode = UA_NodeStore_insert(server->nodestore, node);
if(result->statusCode == UA_STATUSCODE_GOOD)
result->statusCode = UA_NodeId_copy(&node->nodeId, &result->addedNodeId);
else
return;
// reference back to the parent
UA_AddReferencesItem item;
UA_AddReferencesItem_init(&item);
item.sourceNodeId = node->nodeId;
item.referenceTypeId = *referenceTypeId;
item.isForward = UA_FALSE;
item.targetNodeId.nodeId = *parentNodeId;
Service_AddReferences_single(server, session, &item);
// todo: error handling. remove new node from nodestore
}
void Service_AddReferences(UA_Server *server, UA_Session *session, const UA_AddReferencesRequest *request,
UA_AddReferencesResponse *response) {
if(request->referencesToAddSize <= 0) {
response->responseHeader.serviceResult = UA_STATUSCODE_BADNOTHINGTODO;
return;
}
size_t size = request->referencesToAddSize;
if(!(response->results = UA_malloc(sizeof(UA_StatusCode) * size))) {
response->responseHeader.serviceResult = UA_STATUSCODE_BADOUTOFMEMORY;
return;
}
response->resultsSize = size;
#ifdef UA_EXTERNAL_NAMESPACES
#ifdef NO_ALLOCA
UA_Boolean isExternal[size];
UA_UInt32 indices[size];
#else
UA_Boolean *isExternal = UA_alloca(sizeof(UA_Boolean) * size);
UA_UInt32 *indices = UA_alloca(sizeof(UA_UInt32) * size);
#endif /*NO_ALLOCA */
memset(isExternal, UA_FALSE, sizeof(UA_Boolean) * size);
for(size_t j = 0; j < server->externalNamespacesSize; j++) {
size_t indicesSize = 0;
for(size_t i = 0;i < size;i++) {
if(request->referencesToAdd[i].sourceNodeId.namespaceIndex
!= server->externalNamespaces[j].index)
continue;
isExternal[i] = UA_TRUE;
indices[indicesSize] = i;
indicesSize++;
}
if (indicesSize == 0)
continue;
UA_ExternalNodeStore *ens = &server->externalNamespaces[j].externalNodeStore;
ens->addReferences(ens->ensHandle, &request->requestHeader, request->referencesToAdd,
indices, indicesSize, response->results, response->diagnosticInfos);
}
#endif
response->resultsSize = size;
for(size_t i = 0; i < response->resultsSize; i++) {
#ifdef UA_EXTERNAL_NAMESPACES
if(!isExternal[i])
#endif
Service_AddReferences_single(server, session, &request->referencesToAdd[i]);
}
}
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;
}
void
UA_Server_addExistingNode(UA_Server *server, UA_Session *session, UA_Node *node,
const UA_NodeId *parentNodeId, const UA_NodeId *referenceTypeId,
UA_AddNodesResult *result) {
if(node->nodeId.namespaceIndex >= server->namespacesSize) {
result->statusCode = UA_STATUSCODE_BADNODEIDINVALID;
return;
}
const UA_Node *parent = UA_NodeStore_get(server->nodestore, parentNodeId);
if(!parent) {
result->statusCode = UA_STATUSCODE_BADPARENTNODEIDINVALID;
return;
}
const UA_ReferenceTypeNode *referenceType =
(const UA_ReferenceTypeNode *)UA_NodeStore_get(server->nodestore, referenceTypeId);
if(!referenceType) {
result->statusCode = UA_STATUSCODE_BADREFERENCETYPEIDINVALID;
return;
}
if(referenceType->nodeClass != UA_NODECLASS_REFERENCETYPE) {
result->statusCode = UA_STATUSCODE_BADREFERENCETYPEIDINVALID;
return;
}
if(referenceType->isAbstract == UA_TRUE) {
result->statusCode = UA_STATUSCODE_BADREFERENCENOTALLOWED;
return;
}
// todo: test if the referencetype is hierarchical
// todo: namespace index is assumed to be valid
UA_MT_CONST UA_Node *managed = NULL;
UA_NodeId tempNodeid = node->nodeId;
tempNodeid.namespaceIndex = 0;
if(UA_NodeId_isNull(&tempNodeid)) {
if(UA_NodeStore_insert(server->nodestore, node, &managed) != UA_STATUSCODE_GOOD) {
result->statusCode = UA_STATUSCODE_BADOUTOFMEMORY;
return;
}
result->addedNodeId = managed->nodeId; // cannot fail as unique nodeids are numeric
} else {
if(UA_NodeId_copy(&node->nodeId, &result->addedNodeId) != UA_STATUSCODE_GOOD) {
result->statusCode = UA_STATUSCODE_BADOUTOFMEMORY;
return;
}
if(UA_NodeStore_insert(server->nodestore, node, &managed) != UA_STATUSCODE_GOOD) {
result->statusCode = UA_STATUSCODE_BADNODEIDEXISTS;
UA_NodeId_deleteMembers(&result->addedNodeId);
return;
}
}
/* Careful. The node is inserted. If the nodestore makes an expand, nodes change their address */
// reference back to the parent
UA_AddReferencesItem item;
UA_AddReferencesItem_init(&item);
item.sourceNodeId = managed->nodeId;
item.referenceTypeId = *referenceTypeId;
item.isForward = UA_FALSE;
item.targetNodeId.nodeId = *parentNodeId;
Service_AddReferences_single(server, session, &item);
// todo: error handling. remove new node from nodestore
}
