/// <summary>
/// Loads and displayes the cached capabilities for the server.
/// </summary>
private bool LoadCachedCapabilities(WmsServer server)
{
var capabilities = WmsCapabilitiesCache.Load(server.Url);
if (capabilities != null)
{
DisplayServerCapabilities(capabilities);
return(true);
}
return(false);
}
/// <summary>
/// Displayes and cached the results of GetCapabilities request.
/// </summary>
private void ProcessWmsCapabilitiesResults(Task <Stream> task)
{
var server = SelectedServer;
string msg = "WMS server GetCapabilities request failed: " + Environment.NewLine;
try
{
using (var stream = task.Result)
{
WmsCapabilities capabilities;
if (WmsCapabilitiesCache.Save(server.Url, stream))
{
// ConnectStream returned by WebResponse doesn't support seek operation,
// so we can't read it twice, therefore on successful saving to the disk
// we are rereading it from file
capabilities = WmsCapabilitiesCache.Load(server.Url);
}
else
{
capabilities = new WmsCapabilities(stream);
}
DisplayServerCapabilities(capabilities);
}
}
catch (AggregateException ex)
{
MessageService.Current.Warn(msg + ex.InnerException.Message);
}
catch (Exception ex)
{
Logger.Current.Warn(msg + server.Name, ex);
}
finally
{
View.HideHourglass();
}
}
