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/*
* Copyright 2020-2024 John A. De Goes and the ZIO Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package zio.managed
import zio._
import zio.stream._
import zio.stacktracer.TracingImplicits.disableAutoTrace
import java.io._
import scala.concurrent.Future
private[managed] trait ZManagedCompatPlatformSpecific {
implicit final class ZManagedZStreamCompanionPlatformSpecificSyntax(private val self: ZStream.type) {
/**
* Creates a stream from an asynchronous callback that can be called
* multiple times. The registration of the callback itself returns an a
* managed resource. The optionality of the error type `E` can be used to
* signal the end of the stream, by setting it to `None`.
*/
def asyncManaged[R, E, A](
register: (ZIO[R, Option[E], Chunk[A]] => Unit) => ZManaged[R, E, Any],
outputBuffer: => Int = 16
)(implicit trace: Trace): ZStream[R, E, A] =
ZStream.asyncScoped[R, E, A](register(_).scoped, outputBuffer)
/**
* Creates a stream from a managed Java stream
*/
final def fromJavaStreamManaged[R, A](stream: => ZManaged[R, Throwable, java.util.stream.Stream[A]])(implicit
trace: Trace
): ZStream[R, Throwable, A] =
fromJavaStreamManaged(stream, ZStream.DefaultChunkSize)
/**
* Creates a stream from a managed Java stream
*/
final def fromJavaStreamManaged[R, A](
stream: => ZManaged[R, Throwable, java.util.stream.Stream[A]],
chunkSize: Int
)(implicit trace: Trace): ZStream[R, Throwable, A] =
ZStream.fromJavaStreamScoped[R, A](stream.scoped, chunkSize)
/**
* Creates a stream from managed `java.io.Reader`.
*/
def fromReaderManaged[R](
reader: => ZManaged[R, IOException, Reader],
chunkSize: => Int = ZStream.DefaultChunkSize
)(implicit trace: Trace): ZStream[R, IOException, Char] =
ZStream.fromReaderScoped[R](reader.scoped, chunkSize)
}
implicit final class ZManagedZSinkCompanionPlatformSpecificSyntax(private val self: ZStream.type) {
/**
* Uses the provided `OutputStream` resource to create a [[ZSink]] that
* consumes byte chunks and writes them to the `OutputStream`. The sink will
* yield the count of bytes written.
*
* The `OutputStream` will be automatically closed after the stream is
* finished or an error occurred.
*/
final def fromOutputStreamManaged(
os: => ZManaged[Any, IOException, OutputStream]
)(implicit trace: Trace): ZSink[Any, IOException, Byte, Byte, Long] =
ZSink.fromOutputStreamScoped(os.scoped)
}
}
