* Re-write InputStreamPublisher as a GraphStage
* Deprecate IOResult.failure and introduce IOOperationIncompleteException
After some dicussion with @johanandren, @raboof and @2m about the
confusion of the materialised value of the IO streams to complete
even if there is an exception (with the exception in the IOResult)
this now changes it to:
* Deprecate failure in IOResult so it is always set to Success(Done)
* Stop using AbrubtIOTerminationException as the inner IOResult also
contains an exception causing confusion
* Allow for dispatcher aliases and define a internal dispatcher
* Test checking dispatcher name
* MiMa for Dispatchers
* Migration guide entry
* No need to have custom dispatcher lookup logic in streams anymore
* Default dispatcher size and migration note about that
* Test checking exact config values...
* Typed receptionist on internal dispatcher
* All internal usages of system.dispatcher gone through
* ⇒, →, ←
* because we don't want to show them in documentation snippets and
then it's complicated to avoid that when snippets are
located in src/test/scala in individual modules
* dont replace object `→` in FSM.scala and PersistentFSM.scala
* Add CopyrightHeader support for sbt-boilerplate plugin.
* Add CopyrightHeader support for `*.proto` files.
* Add regex match for both `–` and `-` for CopyrightHeader.
* Add CopyrightHeader support for sbt build files.
* Update copyright from 2018 to 2019.
* deduplicate logic for IODispatcher #24604
* introduce a resolveDispatcher helper in ActorAttributes
* mention akka.stream.materializer.blocking-io-dispatcher instead of akka.stream.blocking-io-dispatcher in scaladocs
* fix a flaky test
* cosmetic changes in the touched files
* move resolveDispather helper to the Dispatcher companion object under a new name resolve
* filter out mima warning
* fix mima excludes after the 2.5.11 release
* address review comments
* update stream-io.md with the correct dispatcher config key
* mark ActorAttributes.Dispatcher#resolve as internal API
* use the dispatche config key in ActorMaterializer
* add private[akka] to the resolve methods
* New startPosition parameter to FileIO.toPath
* New startPosition parameter to FileIO.fromPath
* default startPosition value : 0
* fix binary compatibilities
* Add the MiMa filters for the internal classes
* Feedback from comments of the PR
* #22506 Mark materializer extension as @InternalApi
* #22506 Added missing annotations on internal apis in the fusing package
* #22506 Missing annotations in io package
* #22506 Add internal api annotations in impl package
* #22563 more hiding of the classes in the impl package
* #22563 Formatting fixes
* #22506 Fix private access in stream tcl tests
* Removes `Synchronous` from the names and descriptions of File I/O as it leaks impl details
* Removes the factries for FileSource and FileSink and puts them in Source and Sink respectively
main work by @drewhk with contributions from @2m and @rkuhn
This work uncovered many well-hidden bugs in existing Stages, in
particular StatefulStage. These were hidden by the behavior of
OneBoundedInterpreter that normally behaves more orderly than it
guarantees in general, especially with respect to the timeliness of
delivery of upstream termination signals; the bugs were then that
internal state was not flushed when onComplete arrived “too early”.
