/// <summary>
/// Executes a <see cref="WuRemoteCall"/> on the <see cref="IWuEndpoint"/> for this view model.
/// </summary>
/// <param name="call">Call to execute.</param>
/// <param name="param">Call parameter.</param>
protected async Task <WuRemoteCallResult> ExecuteRemoteCallAsync(WuRemoteCall call, object param)
{
if (call == null)
{
throw new ArgumentNullException(nameof(call));
}
IWuEndpoint endpoint;
if (TryGetEndpoint(out endpoint))
{
try
{
Log.Debug($"Execute remote call async: {call.GetType().Name}, Param: {param?.ToString()}");
return(await call.CallAsync(endpoint, param));
}
catch (Exception e)
{
Log.Error($"Execute remote call async failed: {call.GetType().Name}, Param: {param?.ToString()}", e);
return(new WuRemoteCallResult(endpoint, call, false, e, null));
}
}
else
{
return(new WuRemoteCallResult(endpoint, call, false, null, "The remote service is not longer available."));
}
}
/// <summary>
/// Executes a <see cref="WuRemoteCall"/> on the <see cref="IWuEndpoint"/> for this view model.
/// </summary>
/// <param name="call">Call to execute.</param>
/// <param name="param">Call parameter.</param>
/// <param name="onCompletion">Called when the async operation completes.</param>
protected async void ExecuteRemoteCallAsync(WuRemoteCall call, object param, Action <WuRemoteCallResult> onCompletion)
{
if (call == null)
{
throw new ArgumentNullException(nameof(call));
}
var result = await ExecuteRemoteCallAsync(call, param);
onCompletion?.Invoke(result);
}
public WuEndpointCommand(WuRemoteCall remoteCall, Func <IEnumerable <IWuEndpoint> > wuEndpointSelector)
{
if (remoteCall == null)
{
throw new ArgumentNullException(nameof(remoteCall));
}
if (wuEndpointSelector == null)
{
throw new ArgumentNullException(nameof(wuEndpointSelector));
}
RemoteCall = remoteCall;
WuEndpointSelector = wuEndpointSelector;
}
