public CompletableFuture<TestStackResponse> testStack(int input) {
RequestHeader header =
new RequestHeader(
NodeId.NULL_VALUE,
DateTime.now(),
uint(requestHandle.getAndIncrement()),
uint(0),
null,
uint(60),
null);
TestStackRequest request = new TestStackRequest(header, uint(0), 1, new Variant(input));
return client.sendRequest(request);
}
public ClientExample(X509Certificate certificate, KeyPair keyPair) throws Exception {
// Query endpoints and select highest security level.
EndpointDescription[] endpoints =
UaTcpStackClient.getEndpoints("opc.tcp://localhost:12685/example").get();
EndpointDescription endpoint =
Arrays.stream(endpoints)
.sorted((e1, e2) -> e2.getSecurityLevel().intValue() - e1.getSecurityLevel().intValue())
.findFirst()
.orElseThrow(() -> new Exception("no endpoints returned"));
UaTcpStackClientConfig config =
UaTcpStackClientConfig.builder()
.setApplicationName(LocalizedText.english("Stack Example Client"))
.setApplicationUri(String.format("urn:example-client:%s", UUID.randomUUID()))
.setCertificate(certificate)
.setKeyPair(keyPair)
.setEndpoint(endpoint)
.build();
client = new UaTcpStackClient(config);
}
public CompletableFuture<UaStackClient> disconnect() {
return client.disconnect();
}