nodesetLoader is a library written in C99 for the purpose of loading OPC UA nodesets from xml and sorting the nodes based on their hierachical references.

MPL2.0 https://github.com/matkonnerth/nodesetLoader/blob/master/LICENSE

Official release v0.4.0 is tagged. Please be aware that interface may change in future releases.

Supported operating systems: Linux, Windows (rudimentary)

Supported open62541 version: master Support for loading values with datatypes from namespace 0 or custom namespaces Support parsing of extensions (via a callback interface)

Feel free to work on issues or providing further tests to improve the quality of this library. You can start by forking this repository and opening pull requests on it.

The loader uses yxml and ziptree from the open62541 submodule. Unit tests require libcheck.

1. performance
2. memory overhead

git submodule update --init deps/open62541
mkdir build
cd build
cmake ..
make

#include <NodesetLoader/NodesetLoader.h>
#include <open62541/plugin/log_stdout.h>
#include <open62541/server.h>
#include <open62541/server_config_default.h>

static volatile UA_Boolean running = true;
static void stopHandler(int sign) {
  UA_LOG_INFO(UA_Log_Stdout, UA_LOGCATEGORY_SERVER, "received ctrl-c");
  running = false;
}

int main(int argc, const char *argv[]) {
  UA_Server *server = UA_Server_new();
  UA_ServerConfig_setDefault(UA_Server_getConfig(server));
  // Provide the server and the path to the NodeSet XML file.
  if(UA_StatusCode_isBad(UA_Server_loadNodeset(server, "../Opc.Ua.Di.NodeSet2.xml")))
  {
    UA_LOG_INFO(UA_Log_Stdout, UA_LOGCATEGORY_USERLAND, "importing the xml nodeset failed");
  }
  UA_StatusCode retval = UA_Server_run(server, &running);
  UA_Server_delete(server);
  return retval == UA_STATUSCODE_GOOD ? EXIT_SUCCESS : EXIT_FAILURE;
}

• ✔️ import of multiple nodeset files
• ✔️ nodesetLoader uses the logger from the server configuration
• ✔️ DataType import: custom datatypes
• ✔️ DataType import: optionset, union, structs with optional members supported
• ✔️ Value import: for variables with datatypes from namespace 0 and custom data types

Build with cmake.

There is an example in the open backend, can be started with backends/open62541/examples/server

Here's an example repo, consuming open62541 and NodesetLoader via cmake find_package: https://github.com/matkonnerth/nodesetLoader_usage