Contramaps a subscriber using a synchronous function.
Contramaps a subscriber using a synchronous function.
This is useful in situations where you want to guarantee that messages that you produce always reach passed to the subscriber are always
handled, but can't guarantee that the subscriber being contramapped will always handle them. For example, a
subscriber that consumes Netty ByteBuf
can't subscribe directly to an Akka streams publisher since Akka streams
may drop the messages its publishing without giving any opportunity to release the ByteBuf
, this can be used to
to convert some other immutable message to a ByteBuf
for consumption by the Netty subscriber.
Maps a publisher using a synchronous function.
Maps a publisher using a synchronous function.
This is useful in situations where you want to guarantee that messages produced by the publisher are always
handled, but can't guarantee that the subscriber passed to it will always handle them. For example, a
publisher that produces Netty ByteBuf
can't be fed directly into an Akka streams subscriber since Akka streams
may drop the message without giving any opportunity to release the ByteBuf
, this can be used to consume the
ByteBuf
and then release it.
Does a map and contramap on the processor.
Does a map and contramap on the processor.
map() and contramap().