RxJava Operator that dynamically buffers backpressured elements and emits them in batches
I have a Flowable that emits events that need to be handled by an expensive operation which expects element arrays:
Flowable<T> src
void expensiveOp(List<T> batch)
Other than using a constant window i'd like to specify a window of max elements that is filled while downstream is busy and when full just backpressures:
int maxSize = 1024
src.dynamicWindow(maxSize).subscribe(expensiveOp)
The size of the window should therefore be neither constant-time nor element but backpressure dependent. The buffer should be flushed when the subscriber is ready to process the next element.
What overloaded method am I missing?
Possible extensions would be a minSize parameter and a retry mechanism that retries with an increased window.
rx-java rx-java2 reactivex
edited Dec 8 '18 at 18:30
Filip
3,23931226
asked Nov 14 '18 at 15:09
André RüdigerAndré Rüdiger
56111
add a comment |
I have a Flowable that emits events that need to be handled by an expensive operation which expects element arrays:
Flowable<T> src
void expensiveOp(List<T> batch)
Other than using a constant window i'd like to specify a window of max elements that is filled while downstream is busy and when full just backpressures:
int maxSize = 1024
src.dynamicWindow(maxSize).subscribe(expensiveOp)
The size of the window should therefore be neither constant-time nor element but backpressure dependent. The buffer should be flushed when the subscriber is ready to process the next element.
What overloaded method am I missing?
Possible extensions would be a minSize parameter and a retry mechanism that retries with an increased window.
rx-java rx-java2 reactivex
edited Dec 8 '18 at 18:30
Filip
3,23931226
asked Nov 14 '18 at 15:09
André RüdigerAndré Rüdiger
56111
2
Sounds like you needcoalesce
– akarnokd
Nov 15 '18 at 7:32
add a comment |
I have a Flowable that emits events that need to be handled by an expensive operation which expects element arrays:
Flowable<T> src
void expensiveOp(List<T> batch)
Other than using a constant window i'd like to specify a window of max elements that is filled while downstream is busy and when full just backpressures:
int maxSize = 1024
src.dynamicWindow(maxSize).subscribe(expensiveOp)
The size of the window should therefore be neither constant-time nor element but backpressure dependent. The buffer should be flushed when the subscriber is ready to process the next element.
What overloaded method am I missing?
Possible extensions would be a minSize parameter and a retry mechanism that retries with an increased window.
rx-java rx-java2 reactivex
edited Dec 8 '18 at 18:30
Filip
3,23931226
asked Nov 14 '18 at 15:09
André RüdigerAndré Rüdiger
56111
I have a Flowable that emits events that need to be handled by an expensive operation which expects element arrays:
Flowable<T> src
void expensiveOp(List<T> batch)
Other than using a constant window i'd like to specify a window of max elements that is filled while downstream is busy and when full just backpressures:
int maxSize = 1024
src.dynamicWindow(maxSize).subscribe(expensiveOp)
The size of the window should therefore be neither constant-time nor element but backpressure dependent. The buffer should be flushed when the subscriber is ready to process the next element.
What overloaded method am I missing?
Possible extensions would be a minSize parameter and a retry mechanism that retries with an increased window.
rx-java rx-java2 reactivex
rx-java rx-java2 reactivex
edited Dec 8 '18 at 18:30
Filip
3,23931226
asked Nov 14 '18 at 15:09
André RüdigerAndré Rüdiger
56111
edited Dec 8 '18 at 18:30
Filip
3,23931226
asked Nov 14 '18 at 15:09
André RüdigerAndré Rüdiger
56111
edited Dec 8 '18 at 18:30
Filip
3,23931226
edited Dec 8 '18 at 18:30
Filip
3,23931226
edited Dec 8 '18 at 18:30
Filip
3,23931226
3,23931226
asked Nov 14 '18 at 15:09
André RüdigerAndré Rüdiger
56111
asked Nov 14 '18 at 15:09
André RüdigerAndré Rüdiger
56111
asked Nov 14 '18 at 15:09
André RüdigerAndré Rüdiger
56111
56111
2
Sounds like you needcoalesce
– akarnokd
Nov 15 '18 at 7:32
add a comment |
2
Sounds like you needcoalesce
– akarnokd
Nov 15 '18 at 7:32
2
2
Sounds like you need
coalesce– akarnokd
Nov 15 '18 at 7:32
Sounds like you need
coalesce– akarnokd
Nov 15 '18 at 7:32
add a comment |
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2
Sounds like you need
coalesce– akarnokd
Nov 15 '18 at 7:32