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");
}
private async Task <bool> DeleteCoreAsync <T>(string href, CancellationToken cancellationToken)
where T : IResource
{
if (string.IsNullOrEmpty(href))
{
throw new ArgumentNullException(nameof(href));
}
var uri = new CanonicalUri(this.uriQualifier.EnsureFullyQualified(href));
this.logger.Trace($"Asynchronously deleting resource {uri.ToString()}", "DefaultDataStore.DeleteCoreAsync");
IAsynchronousFilterChain chain = new DefaultAsynchronousFilterChain(this.defaultAsyncFilters as DefaultAsynchronousFilterChain)
.Add(new DefaultAsynchronousFilter(async(req, next, logger, ct) =>
{
var httpRequest = new DefaultHttpRequest(HttpMethod.Delete, req.Uri);
var response = await this.ExecuteAsync(httpRequest, ct).ConfigureAwait(false);
return(new DefaultResourceDataResult(req.Action, typeof(T), req.Uri, response.StatusCode, body: null));
}));
var request = new DefaultResourceDataRequest(ResourceAction.Delete, typeof(T), uri, false);
var result = await chain.FilterAsync(request, this.logger, cancellationToken).ConfigureAwait(false);
bool successfullyDeleted = result.HttpStatus == 204;
return(successfullyDeleted);
}
private Task <IResourceDataResult> GetResourceDataAsync <T>(string href, bool skipCache, CancellationToken cancellationToken)
{
if (string.IsNullOrEmpty(href))
{
throw new ArgumentNullException(nameof(href));
}
var canonicalUri = new CanonicalUri(this.uriQualifier.EnsureFullyQualified(href));
this.logger.Trace($"Asynchronously getting resource type {typeof(T).Name} from: {canonicalUri.ToString()}", "DefaultDataStore.GetResourceAsync<T>");
IAsynchronousFilterChain chain = new DefaultAsynchronousFilterChain(this.defaultAsyncFilters as DefaultAsynchronousFilterChain)
.Add(new DefaultAsynchronousFilter(async(req, next, logger, ct) =>
{
var httpRequest = new DefaultHttpRequest(HttpMethod.Get, req.Uri);
var response = await this.ExecuteAsync(httpRequest, ct).ConfigureAwait(false);
var body = this.GetBody <T>(response);
return(new DefaultResourceDataResult(req.Action, typeof(T), req.Uri, response.StatusCode, body));
}));
var request = new DefaultResourceDataRequest(ResourceAction.Read, typeof(T), canonicalUri, skipCache);
return(chain.FilterAsync(request, this.logger, cancellationToken));
}
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();
}
private async Task <TReturned> SaveCoreAsync <T, TReturned>(T resource, string href, QueryString queryParams, HttpHeaders headers, bool create, CancellationToken cancellationToken)
where T : class
where TReturned : class
{
if (string.IsNullOrEmpty(href))
{
throw new ArgumentNullException(nameof(href));
}
var canonicalUri = new CanonicalUri(this.uriQualifier.EnsureFullyQualified(href), queryParams);
this.logger.Trace($"Asynchronously saving resource of type {typeof(T).Name} to {canonicalUri.ToString()}", "DefaultDataStore.SaveCoreAsync");
IAsynchronousFilterChain chain = new DefaultAsynchronousFilterChain(this.defaultAsyncFilters as DefaultAsynchronousFilterChain)
.Add(new DefaultAsynchronousFilter(async(req, next, logger, ct) =>
{
bool contentTypeIsPresent = !string.IsNullOrEmpty(req.Headers?.ContentType);
bool contentTypeIsFormUrlEncoded =
contentTypeIsPresent &&
string.Equals(req.Headers.ContentType, HttpHeaders.MediaTypeApplicationFormUrlEncoded, StringComparison.OrdinalIgnoreCase);
string postBody = contentTypeIsFormUrlEncoded
? new FormUrlEncoder(req.Properties).ToString()
: this.serializer.Serialize(req.Properties);
var httpRequest = new DefaultHttpRequest(
HttpMethod.Post,
req.Uri,
queryParams: null,
headers: req.Headers,
body: postBody,
bodyContentType: contentTypeIsPresent ? req.Headers.ContentType : DefaultContentType);
var response = await this.ExecuteAsync(httpRequest, ct).ConfigureAwait(false);
var responseBody = this.GetBody <T>(response);
var responseAction = this.GetPostAction(req, response);
bool responseHasData = responseBody.Any();
bool responseIsProcessing = response.StatusCode == 202;
bool responseOkay = responseHasData || responseIsProcessing;
if (!responseOkay)
{
throw new ResourceException(DefaultError.WithMessage("Unable to obtain resource data from the API server."));
}
if (responseIsProcessing)
{
this.logger.Warn($"Received a 202 response, returning empty result. Href: '{canonicalUri.ToString()}'", "DefaultDataStore.SaveCoreAsync");
}
return(new DefaultResourceDataResult(responseAction, typeof(TReturned), req.Uri, response.StatusCode, responseBody));
}));
Map propertiesMap = null;
var abstractResource = resource as AbstractResource;
if (abstractResource != null)
{
// Serialize properties
propertiesMap = this.resourceConverter.ToMap(abstractResource);
var extendableInstanceResource = abstractResource as AbstractExtendableInstanceResource;
bool includesCustomData = extendableInstanceResource != null;
if (includesCustomData)
{
var customDataProxy = (extendableInstanceResource as IExtendable).CustomData as DefaultCustomDataProxy;
// Apply custom data deletes
if (customDataProxy.HasDeletedProperties())
{
if (customDataProxy.DeleteAll)
{
await this.DeleteCoreAsync <ICustomData>(extendableInstanceResource.CustomData.Href, cancellationToken).ConfigureAwait(false);
}
else
{
await customDataProxy.DeleteRemovedCustomDataPropertiesAsync(extendableInstanceResource.CustomData.Href, cancellationToken).ConfigureAwait(false);
}
}
// Merge in custom data updates
if (customDataProxy.HasUpdatedCustomDataProperties())
{
propertiesMap["customData"] = customDataProxy.UpdatedCustomDataProperties;
}
// Remove custom data updates from proxy
extendableInstanceResource.ResetCustomData();
}
}
// In some cases, all we need to save are custom data property deletions, which is taken care of above.
// So, we should just refresh with the latest data from the server.
// This doesn't apply to CREATEs, though, because sometimes we *need* to POST a null body.
bool nothingToPost = propertiesMap.IsNullOrEmpty();
if (!create && nothingToPost)
{
return(await this.AsAsyncInterface.GetResourceAsync <TReturned>(canonicalUri.ToString(), cancellationToken).ConfigureAwait(false));
}
var requestAction = create
? ResourceAction.Create
: ResourceAction.Update;
var request = new DefaultResourceDataRequest(requestAction, typeof(T), canonicalUri, headers, propertiesMap, false);
var result = await chain.FilterAsync(request, this.logger, cancellationToken).ConfigureAwait(false);
return(this.resourceFactory.Create <TReturned>(result.Body, resource as ILinkable));
}