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zio.stream.ZStreamAspect.scala Maven / Gradle / Ivy
package zio.stream
import zio.{LogAnnotation, Trace}
import zio.stacktracer.TracingImplicits.disableAutoTrace
trait ZStreamAspect[+LowerR, -UpperR, +LowerE, -UpperE, +LowerA, -UpperA] { self =>
def apply[R >: LowerR <: UpperR, E >: LowerE <: UpperE, A >: LowerA <: UpperA](
stream: ZStream[R, E, A]
)(implicit trace: Trace): ZStream[R, E, A]
def >>>[
LowerR1 >: LowerR,
UpperR1 <: UpperR,
LowerE1 >: LowerE,
UpperE1 <: UpperE,
LowerA1 >: LowerA,
UpperA1 <: UpperA
](
that: ZStreamAspect[LowerR1, UpperR1, LowerE1, UpperE1, LowerA1, UpperA1]
): ZStreamAspect[LowerR1, UpperR1, LowerE1, UpperE1, LowerA1, UpperA1] =
self.andThen(that)
/**
* Returns a new aspect that represents the sequential composition of this
* aspect with the specified one.
*/
def @@[
LowerR1 >: LowerR,
UpperR1 <: UpperR,
LowerE1 >: LowerE,
UpperE1 <: UpperE,
LowerA1 >: LowerA,
UpperA1 <: UpperA
](
that: ZStreamAspect[LowerR1, UpperR1, LowerE1, UpperE1, LowerA1, UpperA1]
): ZStreamAspect[LowerR1, UpperR1, LowerE1, UpperE1, LowerA1, UpperA1] =
self >>> that
def andThen[
LowerR1 >: LowerR,
UpperR1 <: UpperR,
LowerE1 >: LowerE,
UpperE1 <: UpperE,
LowerA1 >: LowerA,
UpperA1 <: UpperA
](
that: ZStreamAspect[LowerR1, UpperR1, LowerE1, UpperE1, LowerA1, UpperA1]
): ZStreamAspect[LowerR1, UpperR1, LowerE1, UpperE1, LowerA1, UpperA1] =
new ZStreamAspect[LowerR1, UpperR1, LowerE1, UpperE1, LowerA1, UpperA1] {
def apply[R >: LowerR1 <: UpperR1, E >: LowerE1 <: UpperE1, A >: LowerA1 <: UpperA1](
stream: ZStream[R, E, A]
)(implicit trace: Trace): ZStream[R, E, A] =
that(self(stream))
}
}
object ZStreamAspect {
/**
* An aspect that annotates each log in this stream with the specified log
* annotation.
*/
def annotated(key: String, value: String): ZStreamAspect[Nothing, Any, Nothing, Any, Nothing, Any] =
new ZStreamAspect[Nothing, Any, Nothing, Any, Nothing, Any] {
def apply[R, E, A](stream: ZStream[R, E, A])(implicit trace: Trace): ZStream[R, E, A] =
ZStream.logAnnotate(key, value) *> stream
}
/**
* An aspect that annotates each log in this stream with the specified log
* annotations.
*/
def annotated(annotations: (String, String)*): ZStreamAspect[Nothing, Any, Nothing, Any, Nothing, Any] =
new ZStreamAspect[Nothing, Any, Nothing, Any, Nothing, Any] {
def apply[R, E, A](stream: ZStream[R, E, A])(implicit trace: Trace): ZStream[R, E, A] =
ZStream.logAnnotate(annotations.map { case (key, value) => LogAnnotation(key, value) }.toSet) *> stream
}
/**
* An aspect that rechunks the stream into chunks of the specified size.
*/
def rechunk(n: Int): ZStreamAspect[Nothing, Any, Nothing, Any, Nothing, Any] =
new ZStreamAspect[Nothing, Any, Nothing, Any, Nothing, Any] {
def apply[R, E, A](stream: ZStream[R, E, A])(implicit trace: Trace): ZStream[R, E, A] =
stream.rechunk(n)
}
/**
* An aspect that tags each metric in this stream with the specified tag.
*/
def tagged(key: String, value: String): ZStreamAspect[Nothing, Any, Nothing, Any, Nothing, Any] =
new ZStreamAspect[Nothing, Any, Nothing, Any, Nothing, Any] {
def apply[R, E, A](stream: ZStream[R, E, A])(implicit trace: Trace): ZStream[R, E, A] =
ZStream.tagged(key, value) *> stream
}
}
