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));
}
}
private IDataSource <object> SubmitPrefetchRequest(
IProducer <object> producerSequence,
ImageRequest imageRequest,
RequestLevel lowestPermittedRequestLevelOnSubmit,
object callerContext,
int priority)
{
IRequestListener requestListener = GetRequestListenerForRequest(imageRequest);
try
{
RequestLevel lowestPermittedRequestLevel = RequestLevel.GetMax(
imageRequest.LowestPermittedRequestLevel,
lowestPermittedRequestLevelOnSubmit);
SettableProducerContext settableProducerContext = new SettableProducerContext(
imageRequest,
GenerateUniqueFutureId(),
requestListener,
callerContext,
lowestPermittedRequestLevel.Value,
/* isPrefetch */ true,
/* isIntermediateResultExpected */ false,
priority);
return(ProducerToDataSourceAdapter <object> .Create(
producerSequence,
settableProducerContext,
requestListener));
}
catch (Exception exception)
{
return(DataSources.ImmediateFailedDataSource <object>(exception));
}
}
public void TestDownloadHandler()
{
_imageRequest = ImageRequestBuilder
.NewBuilderWithSource(IMAGE_URL)
.SetProgressiveRenderingEnabled(true)
.Build();
_producerContext = new SettableProducerContext(
_imageRequest,
$"{ _imageRequest.SourceUri.ToString() }2",
_producerListener,
new object(),
RequestLevel.FULL_FETCH,
false,
true,
Priority.MEDIUM);
_networkFetchProducer.ProduceResults(_consumer, _producerContext);
// Wait for callback
_completion.WaitOne();
Assert.IsTrue(_onNewResultImplCalls > 1);
Assert.IsTrue(_intermediateResultProducerEventCalls > 1);
}
public void TestExceptionInFetchImage()
{
_imageRequest = ImageRequestBuilder
.NewBuilderWithSource(FAILURE_URL)
.SetProgressiveRenderingEnabled(true)
.Build();
_producerContext = new SettableProducerContext(
_imageRequest,
_imageRequest.SourceUri.ToString(),
_producerListener,
new object(),
RequestLevel.FULL_FETCH,
false,
true,
Priority.MEDIUM);
_networkFetchProducer.ProduceResults(_consumer, _producerContext);
// Wait for callback
_completion.WaitOne();
Assert.IsTrue(_onProducerFinishWithFailureFuncCalls == 1);
Assert.AreEqual(_internalRequestId, _imageRequest.SourceUri.ToString());
Assert.AreEqual(_internalProducerName, NetworkFetchProducer.PRODUCER_NAME);
Assert.IsNotNull(_internalError);
Assert.IsNull(_internalExtraMap);
}
/// <summary>
/// CloseableProducerToDataSourceAdapter factory method
/// </summary>
public static IDataSource <CloseableReference <T> > Create(
IProducer <CloseableReference <T> > producer,
SettableProducerContext settableProducerContext,
IRequestListener listener)
{
return(new CloseableProducerToDataSourceAdapter <T>(
producer, settableProducerContext, listener));
}
private ProducerToDataSourceAdapter(
IProducer <T> producer,
SettableProducerContext settableProducerContext,
IRequestListener listener) : base(
producer,
settableProducerContext,
listener)
{
}
private CloseableProducerToDataSourceAdapter(
IProducer <CloseableReference <T> > producer,
SettableProducerContext settableProducerContext,
IRequestListener listener) : base(
producer,
settableProducerContext,
listener)
{
}
/// <summary>
/// Instantiates the <see cref="AbstractProducerToDataSourceAdapter{T}"/>.
/// </summary>
protected AbstractProducerToDataSourceAdapter(
IProducer <T> producer,
SettableProducerContext settableProducerContext,
IRequestListener requestListener)
{
_settableProducerContext = settableProducerContext;
_requestListener = requestListener;
_requestListener.OnRequestStart(
_settableProducerContext.ImageRequest,
_settableProducerContext.CallerContext,
_settableProducerContext.Id,
_settableProducerContext.IsPrefetch);
producer.ProduceResults(CreateConsumer(), settableProducerContext);
}
public void Initialize()
{
// Initializes the mock producer listener
ProducerListenerImpl producerListener = new ProducerListenerImpl(
(_, __) => { },
(_, __, ___) => { },
(_, __, ___) => { },
(_, __, ___, ____) => { },
(_, __, ___) => { },
(_) =>
{
return(false);
});
// Initializes the mock producer context callbacks
_callbacks1 = new BaseProducerContextCallbacks(
() =>
{
++_onCancellationRequestedCount1;
},
() =>
{
++_onIsPrefetchChangedCount1;
},
() =>
{
++_onIsIntermediateResultExpectedChangedCount1;
},
() =>
{
++_onPriorityChangedCount1;
});
_callbacks2 = new BaseProducerContextCallbacks(
() =>
{
++_onCancellationRequestedCount2;
},
() =>
{
++_onIsPrefetchChangedCount2;
},
() =>
{
++_onIsIntermediateResultExpectedChangedCount2;
},
() =>
{
++_onPriorityChangedCount2;
});
_settableProducerContext = new SettableProducerContext(
IMAGE_REQUEST,
REQUEST_ID,
producerListener,
new object(),
RequestLevel.FULL_FETCH,
false,
true,
Priority.MEDIUM);
}
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);
}
public void Initialize()
{
// Initializes mock data
_inputProducer = new ProducerImpl <object>((consumer, producerContext) =>
{
_internalConsumer = consumer;
_internalProducerContext = (SettableProducerContext)producerContext;
_completion.Set();
});
_consumer = new BaseConsumerImpl <object>(
(_, __) => { },
(_) => { },
() =>
{
++_consumerOnCancellationCount;
_completion.Set();
},
(_) => { });
_producerListener = new ProducerListenerImpl(
(requestId, producerName) =>
{
++_onProducerStartCount;
_internalRequestId = requestId;
_internalProducerName = producerName;
},
(_, __, ___) =>
{
++_onProducerEventCount;
},
(requestId, producerName, extraMap) =>
{
++_onProducerFinishWithSuccessCount;
_internalRequestId = requestId;
_internalProducerName = producerName;
_internalExtraMap = extraMap;
},
(_, __, ___, ____) =>
{
++_onProducerFinishWithFailureCount;
_completion.Set();
},
(requestId, producerName, extraMap) =>
{
++_onProducerFinishWithCancellationCount;
_internalRequestId = requestId;
_internalProducerName = producerName;
_internalExtraMap = extraMap;
},
(_) =>
{
++_requiresExtraMapCount;
return(false);
});
_producerContext = new SettableProducerContext(
IMAGE_REQUEST,
REQUEST_ID,
_producerListener,
new object(),
RequestLevel.FULL_FETCH,
false,
true,
Priority.MEDIUM);
_testExecutorService = new MockSerialExecutorService();
_threadHandoffProducer = new ThreadHandoffProducer <object>(
_inputProducer,
new ThreadHandoffProducerQueue(_testExecutorService));
_completion = new ManualResetEvent(false);
}