/// <summary>
/// Gets a Service Description Document from a device.
/// </summary>
/// <param name="Service">Service object.</param>
/// <param name="Timeout">Timeout, in milliseconds.</param>
/// <returns>Service description document, if found, or null otherwise.</returns>
public async Task <ServiceDescriptionDocument> GetServiceAsync(UPnPService Service, int Timeout)
{
using (HttpClient Client = new HttpClient())
{
try
{
Client.Timeout = TimeSpan.FromMilliseconds(Timeout);
Stream Stream = await Client.GetStreamAsync(Service.SCPDURI);
XmlDocument Xml = new XmlDocument();
Xml.Load(Stream);
return(new ServiceDescriptionDocument(Xml, this, Service));
}
catch (Exception ex)
{
this.RaiseOnError(ex);
return(null);
}
}
}
/// <summary>
/// Gets a service, given its service type.
/// </summary>
/// <param name="ServiceType">Service type.</param>
/// <returns>Service object, if found, null otherwise.</returns>
public UPnPService GetService(string ServiceType)
{
UPnPService Result = null;
foreach (UPnPService Service in this.services)
{
if (Service.ServiceType == ServiceType)
{
return(Service);
}
}
foreach (UPnPDevice Device in this.devices)
{
Result = Device.GetService(ServiceType);
if (Result != null)
{
return(Result);
}
}
return(null);
}
/// <summary>
/// Gets a Service Description Document from a device.
/// </summary>
/// <param name="Service">Service object.</param>
/// <returns>Service description document, if found, or null otherwise.</returns>
public Task <ServiceDescriptionDocument> GetServiceAsync(UPnPService Service)
{
return(this.GetServiceAsync(Service, 10000));
}
/// <summary>
/// Gets the service description document from a service in the network.
/// This method is the synchronous version of <see cref="GetServiceAsync(UPnPService, int)"/>.
/// </summary>
/// <param name="Service">Service to get.</param>
/// <param name="Timeout">Timeout, in milliseconds.</param>
/// <returns>Service Description Document.</returns>
/// <exception cref="TimeoutException">If the document could not be retrieved within the timeout time.</exception>
/// <exception cref="Exception">If the document could not be retrieved, or could not be parsed.</exception>
public ServiceDescriptionDocument GetService(UPnPService Service, int Timeout)
{
return(this.GetServiceAsync(Service, Timeout).Result);
}
/// <summary>
/// Gets the service description document from a service in the network.
/// This method is the synchronous version of <see cref="GetServiceAsync(UPnPService)"/>.
/// </summary>
/// <param name="Service">Service to get.</param>
/// <returns>Service Description Document.</returns>
/// <exception cref="TimeoutException">If the document could not be retrieved within the timeout time.</exception>
/// <exception cref="Exception">If the document could not be retrieved, or could not be parsed.</exception>
public ServiceDescriptionDocument GetService(UPnPService Service)
{
return(this.GetService(Service, 10000));
}
internal ServiceDescriptionDocument(XmlDocument Xml, UPnPClient Client, UPnPService Service)
{
List <UPnPStateVariable> Variables = new List <UPnPStateVariable>();
List <UPnPAction> Actions = new List <UPnPAction>();
this.xml = Xml;
this.service = Service;
if (Xml.DocumentElement != null && Xml.DocumentElement.LocalName == "scpd" &&
Xml.DocumentElement.NamespaceURI == "urn:schemas-upnp-org:service-1-0")
{
foreach (XmlNode N in Xml.DocumentElement.ChildNodes)
{
switch (N.LocalName)
{
case "specVersion":
foreach (XmlNode N2 in N.ChildNodes)
{
switch (N2.LocalName)
{
case "major":
this.majorVersion = int.Parse(N2.InnerText);
break;
case "minor":
this.minorVersion = int.Parse(N2.InnerText);
break;
}
}
break;
case "actionList":
foreach (XmlNode N2 in N.ChildNodes)
{
if (N2.LocalName == "action")
{
UPnPAction Action = new UPnPAction((XmlElement)N2, this);
Actions.Add(Action);
this.actionsByName[Action.Name] = Action;
}
}
break;
case "serviceStateTable":
foreach (XmlNode N2 in N.ChildNodes)
{
if (N2.LocalName == "stateVariable")
{
UPnPStateVariable Variable = new UPnPStateVariable((XmlElement)N2);
Variables.Add(Variable);
this.variablesByName[Variable.Name] = Variable;
}
}
break;
}
}
}
else
{
throw new Exception("Unrecognized file format.");
}
this.actions = Actions.ToArray();
this.variables = Variables.ToArray();
}
