private IDataSource <CloseableReference <T> > SubmitFetchRequest <T>(
IProducer <CloseableReference <T> > producerSequence,
ImageRequest imageRequest,
RequestLevel lowestPermittedRequestLevelOnSubmit,
object callerContext)
{
IRequestListener requestListener = GetRequestListenerForRequest(imageRequest);
try
{
RequestLevel lowestPermittedRequestLevel = RequestLevel.GetMax(
imageRequest.LowestPermittedRequestLevel,
lowestPermittedRequestLevelOnSubmit);
SettableProducerContext settableProducerContext = new SettableProducerContext(
imageRequest,
GenerateUniqueFutureId(),
requestListener,
callerContext,
lowestPermittedRequestLevel.Value,
/* isPrefetch */ false,
imageRequest.IsProgressiveRenderingEnabled ||
!UriUtil.IsNetworkUri(imageRequest.SourceUri),
imageRequest.Priority);
return(CloseableProducerToDataSourceAdapter <T> .Create(
producerSequence,
settableProducerContext,
requestListener));
}
catch (Exception exception)
{
return(DataSources.ImmediateFailedDataSource <CloseableReference <T> >(exception));
}
}
public void Initialize()
{
// Initializes the mock RequestListener
ProducerListenerImpl producerListener = new ProducerListenerImpl(
(_, __) => { },
(_, __, ___) => { },
(_, __, ___) => { },
(_, __, ___, ____) => { },
(_, __, ___) => { },
(_) => { return(false); });
_requestListener = new RequestListenerImpl(
producerListener,
(imageRequest, callerContext, requestId, isPrefetch) =>
{
_onRequestStartInvocation = true;
_internalImageRequest = imageRequest;
_internalCallerContext = callerContext;
_internalRequestId = requestId;
_internalIsPrefetch = isPrefetch;
},
(imageRequest, requestId, isPrefetch) =>
{
_onRequestSuccessInvocation = true;
_internalImageRequest = imageRequest;
_internalRequestId = requestId;
_internalIsPrefetch = isPrefetch;
},
(imageRequest, requestId, exception, isPrefetch) =>
{
_onRequestFailureInvocation = true;
_internalImageRequest = imageRequest;
_internalRequestId = requestId;
_internalException = exception;
_internalIsPrefetch = isPrefetch;
},
(requestId) =>
{
_onRequestCancellationInvocation = true;
_internalRequestId = requestId;
});
_resourceReleaser = new ResourceReleaserImpl <object>(_ => { });
_resultRef1 = CloseableReference <object> .of(new object(), _resourceReleaser);
_resultRef2 = CloseableReference <object> .of(new object(), _resourceReleaser);
_resultRef3 = CloseableReference <object> .of(new object(), _resourceReleaser);
_dataSubscriber1 = new MockDataSubscriber <CloseableReference <object> >();
_dataSubscriber2 = new MockDataSubscriber <CloseableReference <object> >();
_internalIsPrefetch = true;
_settableProducerContext = new SettableProducerContext(
IMAGE_REQUEST,
REQUEST_ID,
producerListener,
CALLER_CONTEXT,
RequestLevel.FULL_FETCH,
IS_PREFETCH,
true,
Priority.HIGH);
_producer = new ProducerImpl <CloseableReference <object> >(
(consumer, _) =>
{
_internalConsumer = consumer;
});
_dataSource = CloseableProducerToDataSourceAdapter <object> .Create(
_producer,
_settableProducerContext,
_requestListener);
Assert.IsTrue(_onRequestStartInvocation);
Assert.AreSame(_internalImageRequest, IMAGE_REQUEST);
Assert.AreSame(_internalCallerContext, CALLER_CONTEXT);
Assert.AreSame(_internalRequestId, REQUEST_ID);
Assert.IsFalse(_internalIsPrefetch);
Assert.IsNotNull(_internalConsumer);
_onRequestStartInvocation = false;
_dataSource.Subscribe(_dataSubscriber1, CallerThreadExecutor.Instance);
}