/// <summary> /// Prepare data /// </summary> /// <param name="publisherConnection"></param> /// <returns></returns> private byte[] PrepareData(UdpPubSubConnection publisherConnection, UdpConnectionType udpConnectionType = UdpConnectionType.Networking, int networkMessageIndex = 0) { try { WriterGroupDataType writerGroup0 = publisherConnection.PubSubConnectionConfiguration.WriterGroups.First(); IList <UaNetworkMessage> networkMessages = null; if (udpConnectionType == UdpConnectionType.Discovery) { List <UInt16> dataSetWriterIds = new List <UInt16>(); foreach (DataSetWriterDataType dataSetWriterDataType in writerGroup0.DataSetWriters) { dataSetWriterIds.Add(dataSetWriterDataType.DataSetWriterId); } networkMessages = publisherConnection.CreateDataSetMetaDataNetworkMessages(dataSetWriterIds.ToArray()); } else { networkMessages = publisherConnection.CreateNetworkMessages(writerGroup0, new WriterGroupPublishState()); } Assert.IsNotNull(networkMessages, "CreateNetworkMessages returned null"); Assert.IsTrue(networkMessages.Count > networkMessageIndex, "networkMessageIndex is outside of bounds"); UaNetworkMessage message = networkMessages[networkMessageIndex]; byte[] bytes = message.Encode(ServiceMessageContext.GlobalContext); return(bytes); } catch { return(Array.Empty <byte>()); } }
public void ValidateUdpPubSubConnectionNetworkMessageDiscoveryPublish() { //Arrange var localhost = GetFirstNic(); Assert.IsNotNull(localhost, "localhost is null"); Assert.IsNotNull(localhost.Address, "localhost.Address is null"); //create publisher configuration object with modified port string configurationFile = Utils.GetAbsoluteFilePath(PublisherConfigurationFileName, true, true, false); PubSubConfigurationDataType publisherConfiguration = UaPubSubConfigurationHelper.LoadConfiguration(configurationFile); Assert.IsNotNull(publisherConfiguration, "publisherConfiguration is null"); Assert.Greater(publisherConfiguration.Connections.Count, 1, "publisherConfiguration.Connection should be > 0"); //discovery IP adress 224.0.2.14 IPAddress[] multicastIPAddresses = Dns.GetHostAddresses(UdpDiscoveryIp); IPAddress multicastIPAddress = multicastIPAddresses.First(); Assert.IsNotNull(multicastIPAddress, "multicastIPAddress is null"); NetworkAddressUrlDataType publisherAddress = new NetworkAddressUrlDataType(); publisherAddress.Url = string.Format(UdpUrlFormat, Utils.UriSchemeOpcUdp, multicastIPAddress.ToString()); publisherConfiguration.Connections[0].Address = new ExtensionObject(publisherAddress); //create publisher UaPubSubApplication with changed configuration settings UaPubSubApplication publisherApplication = UaPubSubApplication.Create(publisherConfiguration); Assert.IsNotNull(publisherApplication, "publisherApplication is null"); UdpPubSubConnection publisherConnection = publisherApplication.PubSubConnections.First() as UdpPubSubConnection; Assert.IsNotNull(publisherConnection, "publisherConnection is null"); // will signal that the uadp message was received from local ip m_shutdownEvent = new ManualResetEvent(false); //setup uadp client for receiving from multicast (simulate a subscriber multicast) UdpClient udpMulticastClient = new UdpClientMulticast(localhost.Address, multicastIPAddress, DiscoveryPortNo); udpMulticastClient.BeginReceive(new AsyncCallback(OnReceive), udpMulticastClient); // prepare a network message WriterGroupDataType writerGroup0 = publisherConnection.PubSubConnectionConfiguration.WriterGroups.First(); List <UInt16> dataSetWriterIds = new List <UInt16>(); foreach (DataSetWriterDataType dataSetWriterDataType in writerGroup0.DataSetWriters) { dataSetWriterIds.Add(dataSetWriterDataType.DataSetWriterId); } IList <UaNetworkMessage> networkMessages = publisherConnection.CreateDataSetMetaDataNetworkMessages(dataSetWriterIds.ToArray()); Assert.IsNotNull(networkMessages, "connection.CreateNetworkMessages shall not return null"); //Act publisherConnection.Start(); if (networkMessages != null) { foreach (UaNetworkMessage uaNetworkMessage in networkMessages) { if (uaNetworkMessage != null) { publisherConnection.PublishNetworkMessage(uaNetworkMessage); } } } //Assert bool noMessageReceived = false; if (!m_shutdownEvent.WaitOne(EstimatedPublishingTime)) { noMessageReceived = true; } publisherConnection.Stop(); udpMulticastClient.Close(); udpMulticastClient.Dispose(); if (noMessageReceived) { Assert.Fail("The UDP message was not received"); } }