Task<IResourceDataResult> IAsynchronousFilterChain.FilterAsync(IResourceDataRequest request, ILogger logger, CancellationToken cancellationToken)
{
bool hasFilters = !this.filters.IsNullOrEmpty();
if (!hasFilters)
{
throw new ApplicationException("Empty filter chain");
}
if (this.filters.Count == 1)
{
return this.filters.Single().FilterAsync(
request,
chain: null,
logger: logger,
cancellationToken: cancellationToken);
}
var remainingChain = new DefaultAsynchronousFilterChain(this.dataStore, this.filters.Skip(1));
return this.filters.First().FilterAsync(request, remainingChain, logger, cancellationToken);
}
Task <IResourceDataResult> IAsynchronousFilterChain.FilterAsync(IResourceDataRequest request, ILogger logger, CancellationToken cancellationToken)
{
bool hasFilters = !this.filters.IsNullOrEmpty();
if (!hasFilters)
{
throw new ApplicationException("Empty filter chain");
}
if (this.filters.Count == 1)
{
return(this.filters.Single().FilterAsync(
request,
chain: null,
logger: logger,
cancellationToken: cancellationToken));
}
var remainingChain = new DefaultAsynchronousFilterChain(this.dataStore, this.filters.Skip(1));
return(this.filters.First().FilterAsync(request, remainingChain, logger, cancellationToken));
}
public async Task Async_with_inline_filter()
{
IAsynchronousFilterChain defaultFilterChain = new DefaultAsynchronousFilterChain(dataStore: null)
.Add(new DeleteInterceptorFilter());
IAsynchronousFilterChain finalChain = new DefaultAsynchronousFilterChain(defaultFilterChain as DefaultAsynchronousFilterChain)
.Add(new DefaultAsynchronousFilter((req, next, logger, ct) =>
{
return Task.FromResult<IResourceDataResult>(new DefaultResourceDataResult(
ResourceAction.Create,
typeof(IDictionary<string, object>),
req.Uri,
httpStatus: 200,
body: new Dictionary<string, object>() { { "Foo", "bar" } }));
}));
var request = new DefaultResourceDataRequest(ResourceAction.Create, typeof(IAccount), new CanonicalUri("http://api.foo.bar"), false);
var result = await finalChain.FilterAsync(request, Substitute.For<ILogger>(), CancellationToken.None);
result.Action.ShouldBe(ResourceAction.Create);
result.Body.ShouldContainKeyAndValue("Foo", "bar");
}
public async Task Async_chain_terminating_on_second()
{
IAsynchronousFilterChain filterChain = new DefaultAsynchronousFilterChain(dataStore: null)
.Add(new CreateInterceptorFilter())
.Add(new DeleteInterceptorFilter());
var request = new DefaultResourceDataRequest(ResourceAction.Delete, typeof(IAccount), new CanonicalUri("http://api.foo.bar"), false);
var result = await filterChain.FilterAsync(request, Substitute.For<ILogger>(), CancellationToken.None);
result.Action.ShouldBe(ResourceAction.Delete);
result.Body.ShouldBeNull();
}
public DefaultAsynchronousFilterChain(DefaultAsynchronousFilterChain original)
: this(original.dataStore, original.filters)
{
}
public DefaultAsynchronousFilterChain(DefaultAsynchronousFilterChain original)
: this(original.dataStore, original.filters)
{
}