public void Handle(IExceptionHandlerContext <RestartAsAdministratorCancelledException> context)
{
context.IsHandled = true;
navigator.Notify("Unauthorized", "The operation requires elevated privilege which has not been given.", Navigator.MessageType.Error);
application.Shutdown();
}
protected override Task HandleAsync(
CommandTest command,
Exception exception,
IExceptionHandlerContext context,
CancellationToken cancellationToken)
{
throw new NotImplementedException();
}
public Task HandleAsync(
Ping request,
Exception exception,
IExceptionHandlerContext <int> context,
CancellationToken cancellationToken)
{
throw new NotImplementedException();
}
Task IQueryExceptionHandler <TQuery, TResult> .HandleAsync(
TQuery query,
Exception exception,
IExceptionHandlerContext <TResult> context,
CancellationToken cancellationToken)
{
return(HandleAsync(query, (TException)exception, context, cancellationToken));
}
public Task HandleAsync(
CommandTest request,
Exception exception,
IExceptionHandlerContext <VoidUnit> context,
CancellationToken cancellationToken)
{
throw new NotImplementedException();
}
public Task HandleAsync(
Ping request,
Exception exception,
IExceptionHandlerContext <int> context,
CancellationToken cancellationToken)
{
context.ExceptionWasHandled(Value);
return(TaskBridge.CompletedTask);
}
Task IQueryExceptionHandler <TQuery, TResult> .HandleAsync(
TQuery query,
Exception exception,
IExceptionHandlerContext <TResult> context,
CancellationToken cancellationToken)
{
Handle(query, (TException)exception, context, cancellationToken);
return(TaskBridge.CompletedTask);
}
Task IQueryExceptionHandler <TCommand, VoidUnit> .HandleAsync(
TCommand command,
Exception exception,
IExceptionHandlerContext <VoidUnit> context,
CancellationToken cancellationToken)
{
using var localContext = new ExceptionHandlerContext(context);
Handle(command, (TException)exception, localContext, cancellationToken);
return(TaskBridge.CompletedTask);
}
async Task IQueryExceptionHandler <TCommand, VoidUnit> .HandleAsync(
TCommand command,
Exception exception,
IExceptionHandlerContext <VoidUnit> context,
CancellationToken cancellationToken)
{
using var localContext = new ExceptionHandlerContext(context);
await HandleAsync(
command,
(TException)exception,
localContext,
cancellationToken
)
.ConfigureAwait(false);
}
public void Handle(IExceptionHandlerContext <Exception> context)
{
StringBuilder message = new StringBuilder();
string exceptionMessage = context.Exception.ToString();
if (exceptionMessage.Length > 800)
{
exceptionMessage = exceptionMessage.Substring(0, 800);
}
message.AppendLine(exceptionMessage);
bool result = navigator.Confirm("Unhandled exception - Do you want to kill the aplication?", message.ToString(), Navigator.MessageType.Error);
if (!result)
{
context.IsHandled = true;
}
}
private void HandleInternal <T>(IExceptionHandlerContext <T> context)
where T : Exception
{
processService.RestartAsAdministrator();
context.IsHandled = true;
}
void IExceptionHandler <IExceptionHandlerContext <UnauthorizedAccessException> > .Handle(IExceptionHandlerContext <UnauthorizedAccessException> context) => HandleInternal(context);
public void Handle(IExceptionHandlerContext <T> context)
{
context.IsHandled = IsHandled;
Count++;
}
/// <summary>
/// Handles a <typeparamref name="TException"/>
/// occured in <see cref="ICommandHandler{TCommand}"/>.
/// </summary>
/// <param name="command">A command sent to <see cref="IMediator"/>.</param>
/// <param name="exception">
/// An exception occured in <see cref="ICommandHandler{TCommand}"/>.
/// </param>
/// <param name="context">
/// An information about the progress of exception handling.
/// </param>
/// <param name="cancellationToken">
/// A cancellation token that should be used to cancel the work.
/// </param>
/// <returns>A task that represents exception handling.</returns>
protected abstract Task HandleAsync(
TCommand command,
TException exception,
IExceptionHandlerContext context,
CancellationToken cancellationToken
);
/// <summary>
/// Handles a <typeparamref name="TException"/>
/// occured in <see cref="ICommandHandler{TCommand}"/>.
/// </summary>
/// <param name="command">A command sent to <see cref="IMediator"/>.</param>
/// <param name="exception">
/// An exception occured in <see cref="ICommandHandler{TCommand}"/>.
/// </param>
/// <param name="context">
/// An encapsulated information about the progress of exception handling.
/// </param>
/// <param name="cancellationToken">
/// A cancellation token that should be used to cancel the work.
/// </param>
protected abstract void Handle(
TCommand command,
TException exception,
IExceptionHandlerContext context,
CancellationToken cancellationToken
);
/// <summary>
/// Handles a <typeparamref name="TException"/>
/// occured in <see cref="IQueryHandler{TQuery, TResult}"/>.
/// </summary>
/// <param name="query"></param>
/// <param name="exception">
/// An exception occured in <see cref="IQueryHandler{TQuery, TResult}"/>.
/// </param>
/// <param name="context">
/// An information about the progress of exception handling.
/// </param>
/// <param name="cancellationToken">
/// A cancellation token that should be used to cancel the work.
/// </param>
/// <returns>A task that represents exception handling.</returns>
protected abstract Task HandleAsync(
TQuery query,
TException exception,
IExceptionHandlerContext <TResult> context,
CancellationToken cancellationToken
);
void IExceptionHandler <IExceptionHandlerContext <PackageFileExtractionException> > .Handle(IExceptionHandlerContext <PackageFileExtractionException> context)
{
navigator.Notify("Package Install Error", $"Error extracting file to '{context.Exception.FilePath}'", Navigator.MessageType.Error);
context.IsHandled = true;
}
void IExceptionHandler <IExceptionHandlerContext <FatalProtocolException> > .Handle(IExceptionHandlerContext <FatalProtocolException> context)
{
if (context.Exception.InnerException is HttpRequestException && context.Exception.InnerException.InnerException is WebException webException)
{
navigator.Notify("Communcation Error", GetMessage(webException), Navigator.MessageType.Error);
context.IsHandled = true;
}
}
void IExceptionHandler <IExceptionHandlerContext <PackageFileRemovalException> > .Handle(IExceptionHandlerContext <PackageFileRemovalException> context)
{
navigator.Notify("Package Removal Error", $"Error deleting file '{context.Exception.FilePath}'", Navigator.MessageType.Error);
context.IsHandled = true;
}
public ExceptionHandlerContext(IExceptionHandlerContext <VoidUnit> context)
{
_context = context;
}
void IExceptionHandler <IExceptionHandlerContext <PackagesConfigWriterException> > .Handle(IExceptionHandlerContext <PackagesConfigWriterException> context) => HandleInternal(context);
void IExceptionHandler <IExceptionHandlerContext <NuGetConfigurationException> > .Handle(IExceptionHandlerContext <NuGetConfigurationException> context) => HandleInternal(context);
public void Handle(IExceptionHandlerContext <T> context)
{
innerHandler.Handle(context.Exception);
}
