async public override Task <bool> Refresh()
{
await base.Refresh();
try
{
string server = ConfigTextStream.ExtractValue(_connectionString, "server");
string user = ConfigTextStream.ExtractValue(_connectionString, "user");
string pwd = ConfigTextStream.ExtractValue(_connectionString, "pwd");
var url = server
.UrlAppendPath(this._name)
.UrlAppendParameters("f=json");
if (!String.IsNullOrEmpty(user) && !String.IsNullOrEmpty(pwd))
{
string token = await RequestTokenCache.RefreshTokenAsync(server, user, pwd);
url = url.UrlAppendParameters($"token={token}");
}
var jsonServices = await WebFunctions.DownloadObjectAsync <JsonServices>(url);
if (jsonServices != null)
{
if (jsonServices.Folders != null)
{
foreach (var folder in jsonServices.Folders)
{
base.AddChildObject(
new GeoServicesFolderExplorerObject(
this._parent,
this._name.UrlAppendPath(folder),
_connectionString)
);
}
}
if (jsonServices.Services != null)
{
foreach (var service in jsonServices.Services.Where(s => s.Type.ToLower() == "mapserver"))
{
base.AddChildObject(
new GeoServicesServiceExplorerObject(
this,
service.ServiceName,
this._name,
_connectionString));
}
}
}
return(true);
}
catch (Exception ex)
{
System.Windows.Forms.MessageBox.Show(ex.Message);
return(false);
}
}
async private Task HandleTokenExceptionAsync(int i, TokenRequiredException ex)
{
if (i < 3) // drei mal probieren lassen
{
string serviceUrl = ServiceUrl();
string user = ConfigTextStream.ExtractValue(ConnectionString, "user");
string pwd = ConfigTextStream.ExtractValue(ConnectionString, "pwd");
_token = await RequestTokenCache.RefreshTokenAsync(serviceUrl, user, pwd, _token);
}
else
{
throw ex;
}
}