/// <summary>
/// Connects to given address and parses xml to extract all IP addresses
/// of all nodes advertising given service type
/// </summary>
/// <param name="type">Type of service to retrieve.</param>
/// <param name="address">IP address to get xml from - Note that the file /xml/services is added onto this IP.</param>
/// <param name="exc">If an exception was thrown while retrieving services, it is returned here.</param>
/// <returns>list of Advertised Service Objects</returns>
public static List <SourceDiscoveryGroup> Query(String url, String username, String password)
{
List <SourceDiscoveryGroup> result = new List <SourceDiscoveryGroup>();
XDocument doc = XDocument.Load(url);
IEnumerable <XElement> groups = doc.Element("SourceGroups").Elements("SourceGroup");
foreach (XElement group in groups)
{
SourceDiscoveryGroup sourceGroup = new SourceDiscoveryGroup();
sourceGroup.Version = Int32.Parse(group.Attribute("Version").Value);
sourceGroup.Name = group.Attribute("Name").Value;
IEnumerable <XElement> sources = group.Elements("StreamSourceInfo");
foreach (XElement xmlSource in sources)
{
try
{
StreamSourceInfo source = new StreamSourceInfo();
source.SourceName = xmlSource.Attribute("SourceName").Value;
source.Description = xmlSource.Attribute("Description").Value;
if (xmlSource.Attribute("ClientURL") != null)
{
source.SinkAddress = xmlSource.Attribute("ClientURL").Value;
}
else if (xmlSource.Attribute("SinkAddress") != null)
{
source.SinkAddress = xmlSource.Attribute("SinkAddress").Value;
}
if (xmlSource.Attribute("HasAudio") != null)
{
if (xmlSource.Attribute("HasAudio").Value == "1")
{
source.HasAudio = true;
}
}
XElement xmlCameraControl = xmlSource.Element("CameraControl");
if (xmlCameraControl != null)
{
CameraControlInfo info = new CameraControlInfo();
info.PTZType = (PTZType)Enum.Parse(typeof(PTZType), xmlCameraControl.Attribute("PTZType").Value);
XElement xmlCaps = xmlCameraControl.Element("Capabilities");
if (xmlCaps != null)
{
info.Capabilities = CameraCapabilitiesAndLimits.CreateFromXml(xmlCaps);
}
XElement xmlAddress = xmlCameraControl.Element("Address");
if (xmlAddress != null)
{
info.Address = xmlAddress.Value;
}
source.CameraControl = info;
}
sourceGroup.Sources.Add(source);
}
catch (Exception e)
{
ErrorLogger.DumpToDebug(e);
}
}
result.Add(sourceGroup);
}
return(result);
}
/// <summary>
/// Connects to given address and parses xml to extract all IP addresses
/// of all nodes advertising given service type
/// </summary>
/// <param name="type">Type of service to retrieve.</param>
/// <param name="address">IP address to get xml from - Note that the file /xml/services is added onto this IP.</param>
/// <param name="exc">If an exception was thrown while retrieving services, it is returned here.</param>
/// <returns>list of Advertised Service Objects</returns>
public static List <SourceDiscoveryGroup> ReadFile(String path)
{
List <SourceDiscoveryGroup> result = new List <SourceDiscoveryGroup>();
XDocument doc = XDocument.Load(path);
IEnumerable <XElement> groups = doc.Element("SourceGroups").Elements("SourceGroup");
foreach (XElement group in groups)
{
SourceDiscoveryGroup sourceGroup = new SourceDiscoveryGroup();
ServerInfo serverInfo = new ServerInfo();
serverInfo.ServerName = "Local";
serverInfo.ServerAddress = "127.0.0.1";
sourceGroup.ServerInfo = serverInfo;
sourceGroup.Version = Int32.Parse(group.Attribute("Version").Value);
sourceGroup.Name = group.Attribute("Name").Value;
IEnumerable <XElement> sources = group.Elements("StreamSourceInfo");
foreach (XElement xmlSource in sources)
{
StreamSourceInfo source = new StreamSourceInfo();
source.SourceName = xmlSource.Attribute("Name").Value;
XAttribute sourceTypeAttribute = xmlSource.Attribute("SourceType");
if (sourceTypeAttribute != null)
{
source.SourceType = (SourceType)Enum.Parse(typeof(SourceType), sourceTypeAttribute.Value);
}
else
{
source.SourceType = SourceType.RTSP;
}
source.Description = xmlSource.Attribute("Description").Value;
if (xmlSource.Attribute("SinkAddress") != null)
{
source.SinkAddress = xmlSource.Attribute("SinkAddress").Value;
}
else if (xmlSource.Attribute("ClientURL") != null)
{
source.SinkAddress = xmlSource.Attribute("ClientURL").Value;
}
if (source.SinkAddress.StartsWith(@"rtsp://"))
{
if ((xmlSource.Attribute("SourceType") != null) && xmlSource.Attribute("SourceType").Value == "RTSP_Elecard")
{
source.SourceType = SourceType.RTSP_Elecard;
}
else
{
source.SourceType = SourceType.RTSP;
}
}
if (xmlSource.Element("CameraControl") != null)
{
XElement xmlCameraControl = xmlSource.Element("CameraControl");
CameraControlInfo info = new CameraControlInfo();
info.PTZType = (PTZType)Enum.Parse(typeof(PTZType), xmlCameraControl.Attribute("PTZType").Value);
XElement xmlCaps = xmlCameraControl.Element("Capabilities");
if (xmlCaps != null)
{
info.Capabilities = CameraCapabilitiesAndLimits.CreateFromXml(xmlCaps);
}
XElement xmlAddress = xmlCameraControl.Element("Address");
if (xmlAddress != null)
{
info.Address = xmlAddress.Value;
}
source.CameraControl = info;
}
sourceGroup.Sources.Add(source);
}
result.Add(sourceGroup);
}
return(result);
}