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!str - Moving the InputStream and OutputStream utilities into Source and Sink

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This commit is contained in:
Viktor Klang 2015-11-17 13:17:30 +01:00
parent cb8d3c4609
commit 8780ba28a4
25 changed files with 432 additions and 310 deletions
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47
akka-stream/src/main/scala/akka/stream/javadsl/Sink.scala
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@ -3,7 +3,7 @@
*/
package akka.stream.javadsl
import java.io.File
import java.io.{ InputStream, OutputStream, File }
import akka.actor.{ ActorRef, Props }
import akka.dispatch.ExecutionContexts
@ -182,6 +182,8 @@ object Sink {
*
* You can configure the default dispatcher for this Source by changing the `akka.stream.blocking-io-dispatcher` or
* set it for a given Source by using [[ActorAttributes]].
*
* @param f The file to write to
*/
def file(f: File): javadsl.Sink[ByteString, Future[java.lang.Long]] = file(f, append = false)
@ -193,10 +195,53 @@ object Sink {
*
* You can configure the default dispatcher for this Source by changing the `akka.stream.blocking-io-dispatcher` or
* set it for a given Source by using [[ActorAttributes]].
*
* @param f The file to write to
* @param append Whether or not the file should be overwritten or appended to
*/
def file(f: File, append: Boolean): javadsl.Sink[ByteString, Future[java.lang.Long]] =
new Sink(scaladsl.Sink.file(f, append)).asInstanceOf[javadsl.Sink[ByteString, Future[java.lang.Long]]]
/**
* Sink which writes incoming [[ByteString]]s to an [[OutputStream]] created by the given function.
*
* Materializes a [[Future]] that will be completed with the size of the file (in bytes) at the streams completion.
*
* You can configure the default dispatcher for this Source by changing the `akka.stream.blocking-io-dispatcher` or
* set it for a given Source by using [[ActorAttributes]].
*
* @param f A Creator which creates an OutputStream to write to
*/
def outputStream(f: function.Creator[OutputStream]): javadsl.Sink[ByteString, Future[java.lang.Long]] =
new Sink(scaladsl.Sink.outputStream(() ⇒ f.create())).asInstanceOf[javadsl.Sink[ByteString, Future[java.lang.Long]]]
/**
* Creates a Sink which when materialized will return an [[java.io.InputStream]] which it is possible
* to read the values produced by the stream this Sink is attached to.
*
* This method uses a default read timeout, use [[#inputStream(FiniteDuration)]] to explicitly
* configure the timeout.
*
* This Sink is intended for inter-operation with legacy APIs since it is inherently blocking.
*
* You can configure the default dispatcher for this Source by changing the `akka.stream.blocking-io-dispatcher` or
* set it for a given Source by using [[ActorAttributes]].
*/
def inputStream(): Sink[ByteString, InputStream] = new Sink(scaladsl.Sink.inputStream())
/**
* Creates a Sink which when materialized will return an [[java.io.InputStream]] which it is possible
* to read the values produced by the stream this Sink is attached to.
*
* This Sink is intended for inter-operation with legacy APIs since it is inherently blocking.
*
* You can configure the default dispatcher for this Source by changing the `akka.stream.blocking-io-dispatcher` or
* set it for a given Source by using [[ActorAttributes]].
*
* @param readTimeout the max time the read operation on the materialized InputStream should block
*/
def inputStream(readTimeout: FiniteDuration): Sink[ByteString, InputStream] =
new Sink(scaladsl.Sink.inputStream(readTimeout))
}
/**