private DataSource<Void> submitPrefetchRequest(
Producer<Void> producerSequence,
ImageRequest imageRequest,
ImageRequest.RequestLevel lowestPermittedRequestLevelOnSubmit,
Object callerContext,
Priority priority) {
try {
ImageRequest.RequestLevel lowestPermittedRequestLevel =
ImageRequest.RequestLevel.getMax(
imageRequest.getLowestPermittedRequestLevel(), lowestPermittedRequestLevelOnSubmit);
SettableProducerContext settableProducerContext =
new SettableProducerContext(
imageRequest,
generateUniqueFutureId(),
mRequestListener,
callerContext,
lowestPermittedRequestLevel,
/* isPrefetch */ true,
/* isIntermediateResultExpected */ false,
priority);
return ProducerToDataSourceAdapter.create(
producerSequence, settableProducerContext, mRequestListener);
} catch (Exception exception) {
return DataSources.immediateFailedDataSource(exception);
}
}
private <T> DataSource<CloseableReference<T>> submitFetchRequest(
Producer<CloseableReference<T>> producerSequence,
ImageRequest imageRequest,
ImageRequest.RequestLevel lowestPermittedRequestLevelOnSubmit,
Object callerContext) {
try {
ImageRequest.RequestLevel lowestPermittedRequestLevel =
ImageRequest.RequestLevel.getMax(
imageRequest.getLowestPermittedRequestLevel(), lowestPermittedRequestLevelOnSubmit);
SettableProducerContext settableProducerContext =
new SettableProducerContext(
imageRequest,
generateUniqueFutureId(),
mRequestListener,
callerContext,
lowestPermittedRequestLevel,
/* isPrefetch */ false,
imageRequest.getProgressiveRenderingEnabled()
|| !UriUtil.isNetworkUri(imageRequest.getSourceUri()),
imageRequest.getPriority());
return CloseableProducerToDataSourceAdapter.create(
producerSequence, settableProducerContext, mRequestListener);
} catch (Exception exception) {
return DataSources.immediateFailedDataSource(exception);
}
}