/// <summary>
/// Use to get the status of an event subscription.
/// </summary>
/// <param name="endpointAddress">
/// A Uri containing the endpoint address of the service or subscription manager that is currently
/// maintaining this event subscription on behalf of the device. This address is an http uri
/// (i.e. http://ip_address:port/serviceID).
/// </param>
/// <param name="subscriptionID">
/// A subscription ID returned from a previous subscribe response. The device uses this ID
/// to identify a specific event source subscription.
/// </param>
/// <returns>
/// A WsDuration object containing the remaining subscription time for this event subscription, null = infinite.
/// </returns>
public WsDuration GetStatus(Uri endpointAddress, string subscriptionID)
{
// Performance debugging
DebugTiming timeDebuger = new DebugTiming();
long startTime = timeDebuger.ResetStartTime("");
// Build Renew request
using (XmlMemoryWriter xmlWriter = XmlMemoryWriter.Create())
{
WsXmlNodeList nodeList = new WsXmlNodeList();
nodeList.Add(new WsXmlNode(WsNamespacePrefix.Wse, "Identifier", null, subscriptionID));
WsWsaHeader header = new WsWsaHeader(
m_version.EventingNamespace + "/GetStatus", // Action
null, // RelatesTo
endpointAddress.AbsoluteUri, // To
null, null, nodeList); // ReplyTo, From, Any
WsMessage msg = new WsMessage(header, null, WsPrefix.Wse, null, null);
WsSoapMessageWriter smw = new WsSoapMessageWriter(m_version);
String messageID = smw.WriteSoapMessageStart(xmlWriter, msg);
// Performance debuging
timeDebuger.PrintElapsedTime("*****Write Header Took");
// write body
xmlWriter.WriteStartElement(WsNamespacePrefix.Soap, "Body", null);
xmlWriter.WriteStartElement(WsNamespacePrefix.Wse, "GetStatus", null);
xmlWriter.WriteString("");
xmlWriter.WriteEndElement(); // End GetStatus
// Performance debuging
timeDebuger.PrintElapsedTime("*****Write Body Took");
smw.WriteSoapMessageEnd(xmlWriter);
// Performance debuging
timeDebuger.PrintTotalTime(startTime, "***Renew Message Build Took");
// Create an Http client and send GetStatus request
WsHttpClient httpClient = new WsHttpClient(m_version);
msg.Body = xmlWriter.ToString();
WsMessage getStatusResponse = httpClient.SendRequest(msg, endpointAddress);
// If a GetStatus response is received validate the messageID and action and get the remaining
// event subscription time. If a fault is received print exception and go on.
if (getStatusResponse == null)
{
System.Ext.Console.Write("");
System.Ext.Console.Write("Renew response is null.");
return(null);
}
else
{
System.Ext.Console.Write("");
System.Ext.Console.Write("Response From: " + endpointAddress.Host);
System.Ext.Console.Write(getStatusResponse.Body as byte[]);
// Note: Since the response is the same for GetStatus ans it is for Renew reuse the
// Renew response parser.
try
{
return(ProcessRenewResponse((byte[])getStatusResponse.Body, messageID));
}
catch (Exception e)
{
System.Ext.Console.Write("");
System.Ext.Console.Write("Unsubscribe response parsing failed.");
System.Ext.Console.Write(e.Message);
}
}
}
return(null);
}
