public void ValidateUadpPubSubConnectionNetworkMessagePublishMulticast()
{
//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
PubSubConfigurationDataType publisherConfiguration = UaPubSubConfigurationHelper.LoadConfiguration(PublisherConfigurationFileName);
Assert.IsNotNull(publisherConfiguration, "publisherConfiguration is null");
IPAddress multicastIPAddress = new IPAddress(new byte[4] {
239, 0, 0, 1
});
Assert.IsNotNull(multicastIPAddress, "multicastIPAddress is null");
NetworkAddressUrlDataType publisherAddress = new NetworkAddressUrlDataType();
publisherAddress.Url = "opc.udp://" + multicastIPAddress.ToString() + ":4840";
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");
UadpPubSubConnection publisherConnection = publisherApplication.PubSubConnections[0] as UadpPubSubConnection;
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, 4840);
udpMulticastClient.BeginReceive(new AsyncCallback(OnReceive), udpMulticastClient);
// prepare a network message
WriterGroupDataType writerGroup0 = publisherConnection.PubSubConnectionConfiguration.WriterGroups[0];
UaNetworkMessage networkMessage = publisherConnection.CreateNetworkMessage(writerGroup0);
//Act
publisherConnection.Start();
publisherConnection.PublishNetworkMessage(networkMessage);
//Assert
if (!m_shutdownEvent.WaitOne(EstimatedPublishingTime))
{
Assert.Fail("The UADP message was not received");
}
publisherConnection.Stop();
udpMulticastClient.Close();
udpMulticastClient.Dispose();
}
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");
}
}