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zio.System.scala Maven / Gradle / Ivy
/*
* Copyright 2017-2024 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
import zio.internal.stacktracer.Tracer
import zio.stacktracer.TracingImplicits.disableAutoTrace
import java.lang.{System => JSystem}
import scala.annotation.nowarn
import scala.collection.JavaConverters._
trait System extends Serializable { self =>
def env(variable: => String)(implicit trace: Trace): IO[SecurityException, Option[String]]
def envOrElse(variable: => String, alt: => String)(implicit trace: Trace): IO[SecurityException, String]
def envOrOption(variable: => String, alt: => Option[String])(implicit
trace: Trace
): IO[SecurityException, Option[String]]
def envs(implicit trace: Trace): IO[SecurityException, Map[String, String]]
def lineSeparator(implicit trace: Trace): UIO[String]
def properties(implicit trace: Trace): IO[Throwable, Map[String, String]]
def property(prop: => String)(implicit trace: Trace): IO[Throwable, Option[String]]
def propertyOrElse(prop: => String, alt: => String)(implicit trace: Trace): IO[Throwable, String]
def propertyOrOption(prop: => String, alt: => Option[String])(implicit
trace: Trace
): IO[Throwable, Option[String]]
trait UnsafeAPI {
def env(variable: String)(implicit unsafe: Unsafe): Option[String]
def envOrElse(variable: String, alt: => String)(implicit unsafe: Unsafe): String
def envOrOption(variable: String, alt: => Option[String])(implicit unsafe: Unsafe): Option[String]
def envs()(implicit unsafe: Unsafe): Map[String, String]
def lineSeparator()(implicit unsafe: Unsafe): String
def properties()(implicit unsafe: Unsafe): Map[String, String]
def property(prop: String)(implicit unsafe: Unsafe): Option[String]
def propertyOrElse(prop: String, alt: => String)(implicit unsafe: Unsafe): String
def propertyOrOption(prop: String, alt: => Option[String])(implicit unsafe: Unsafe): Option[String]
}
def unsafe: UnsafeAPI =
new UnsafeAPI {
def env(variable: String)(implicit unsafe: Unsafe): Option[String] =
Runtime.default.unsafe.run(self.env(variable)(Trace.empty))(Trace.empty, unsafe).getOrThrowFiberFailure()
def envOrElse(variable: String, alt: => String)(implicit unsafe: Unsafe): String =
Runtime.default.unsafe
.run(self.envOrElse(variable, alt)(Trace.empty))(Trace.empty, unsafe)
.getOrThrowFiberFailure()
def envOrOption(variable: String, alt: => Option[String])(implicit
unsafe: Unsafe
): Option[String] =
Runtime.default.unsafe
.run(self.envOrOption(variable, alt)(Trace.empty))(Trace.empty, unsafe)
.getOrThrowFiberFailure()
def envs()(implicit unsafe: Unsafe): Map[String, String] =
Runtime.default.unsafe.run(self.envs(Trace.empty))(Trace.empty, unsafe).getOrThrowFiberFailure()
def lineSeparator()(implicit unsafe: Unsafe): String =
Runtime.default.unsafe.run(self.lineSeparator(Trace.empty))(Trace.empty, unsafe).getOrThrowFiberFailure()
def properties()(implicit unsafe: Unsafe): Map[String, String] =
Runtime.default.unsafe.run(self.properties(Trace.empty))(Trace.empty, unsafe).getOrThrowFiberFailure()
def property(prop: String)(implicit unsafe: Unsafe): Option[String] =
Runtime.default.unsafe.run(self.property(prop)(Trace.empty))(Trace.empty, unsafe).getOrThrowFiberFailure()
def propertyOrElse(prop: String, alt: => String)(implicit unsafe: Unsafe): String =
Runtime.default.unsafe
.run(self.propertyOrElse(prop, alt)(Trace.empty))(Trace.empty, unsafe)
.getOrThrowFiberFailure()
def propertyOrOption(prop: String, alt: => Option[String])(implicit
unsafe: Unsafe
): Option[String] =
Runtime.default.unsafe
.run(self.propertyOrOption(prop, alt)(Trace.empty))(Trace.empty, unsafe)
.getOrThrowFiberFailure()
}
}
object System extends Serializable {
val tag: Tag[System] = Tag[System]
object SystemLive extends System {
def env(variable: => String)(implicit trace: Trace): IO[SecurityException, Option[String]] =
ZIO.attempt(unsafe.env(variable)(Unsafe.unsafe)).refineToOrDie[SecurityException]
def envOrElse(variable: => String, alt: => String)(implicit trace: Trace): IO[SecurityException, String] =
ZIO.attempt(unsafe.envOrElse(variable, alt)(Unsafe.unsafe)).refineToOrDie[SecurityException]
def envOrOption(variable: => String, alt: => Option[String])(implicit
trace: Trace
): IO[SecurityException, Option[String]] =
ZIO.attempt(unsafe.envOrOption(variable, alt)(Unsafe.unsafe)).refineToOrDie[SecurityException]
def envs(implicit trace: Trace): IO[SecurityException, Map[String, String]] =
ZIO.attempt(unsafe.envs()(Unsafe.unsafe)).refineToOrDie[SecurityException]
def lineSeparator(implicit trace: Trace): UIO[String] =
ZIO.succeed(unsafe.lineSeparator()(Unsafe.unsafe))
def properties(implicit trace: Trace): IO[Throwable, Map[String, String]] =
ZIO.attempt(unsafe.properties()(Unsafe.unsafe))
def property(prop: => String)(implicit trace: Trace): IO[Throwable, Option[String]] =
ZIO.attempt(unsafe.property(prop)(Unsafe.unsafe))
def propertyOrElse(prop: => String, alt: => String)(implicit trace: Trace): IO[Throwable, String] =
ZIO.attempt(unsafe.propertyOrElse(prop, alt)(Unsafe.unsafe))
def propertyOrOption(prop: => String, alt: => Option[String])(implicit
trace: Trace
): IO[Throwable, Option[String]] =
ZIO.attempt(unsafe.propertyOrOption(prop, alt)(Unsafe.unsafe))
@transient override val unsafe: UnsafeAPI =
new UnsafeAPI {
override def env(variable: String)(implicit unsafe: Unsafe): Option[String] =
Option(JSystem.getenv(variable))
override def envOrElse(variable: String, alt: => String)(implicit unsafe: Unsafe): String =
envOrElseWith(variable, alt)(env)
override def envOrOption(variable: String, alt: => Option[String])(implicit unsafe: Unsafe): Option[String] =
envOrOptionWith(variable, alt)(env)
@nowarn("msg=JavaConverters")
override def envs()(implicit unsafe: Unsafe): Map[String, String] =
JSystem.getenv.asScala.toMap
override def lineSeparator()(implicit unsafe: Unsafe): String =
JSystem.lineSeparator
@nowarn("msg=JavaConverters")
override def properties()(implicit unsafe: Unsafe): Map[String, String] =
JSystem.getProperties.asScala.toMap
override def property(prop: String)(implicit unsafe: Unsafe): Option[String] =
Option(JSystem.getProperty(prop))
override def propertyOrElse(prop: String, alt: => String)(implicit unsafe: Unsafe): String =
propertyOrElseWith(prop, alt)(property)
override def propertyOrOption(prop: String, alt: => Option[String])(implicit
unsafe: Unsafe
): Option[String] =
propertyOrOptionWith(prop, alt)(property)
}
}
private[zio] def envOrElseWith(variable: String, alt: => String)(env: String => Option[String]): String =
env(variable).getOrElse(alt)
private[zio] def envOrOptionWith(variable: String, alt: => Option[String])(
env: String => Option[String]
): Option[String] =
env(variable).orElse(alt)
private[zio] def propertyOrElseWith(prop: String, alt: => String)(property: String => Option[String]): String =
property(prop).getOrElse(alt)
private[zio] def propertyOrOptionWith(prop: String, alt: => Option[String])(
property: String => Option[String]
): Option[String] =
property(prop).orElse(alt)
/**
* Retrieves the value of an environment variable.
*/
def env(variable: => String)(implicit trace: Trace): IO[SecurityException, Option[String]] =
ZIO.systemWith(_.env(variable))
/**
* Retrieves the value of an environment variable or else returns the
* specified fallback value.
*/
def envOrElse(variable: => String, alt: => String)(implicit
trace: Trace
): IO[SecurityException, String] =
ZIO.systemWith(_.envOrElse(variable, alt))
/**
* Retrieves the value of an environment variable or else returns the
* specified optional fallback value.
*/
def envOrOption(variable: => String, alt: => Option[String])(implicit
trace: Trace
): IO[SecurityException, Option[String]] =
ZIO.systemWith(_.envOrOption(variable, alt))
/**
* Retrieves the values of all environment variables.
*/
def envs(implicit trace: Trace): IO[SecurityException, Map[String, String]] =
ZIO.systemWith(_.envs)
/**
* Retrieves the values of all system properties.
*/
def properties(implicit trace: Trace): Task[Map[String, String]] =
ZIO.systemWith(_.properties)
/**
* Retrieves the value of a system property.
*/
def property(prop: => String)(implicit trace: Trace): Task[Option[String]] =
ZIO.systemWith(_.property(prop))
/**
* Retrieves the value of a system property or else return the specified
* fallback value.
*/
def propertyOrElse(prop: => String, alt: => String)(implicit trace: Trace): Task[String] =
ZIO.systemWith(_.propertyOrElse(prop, alt))
/**
* Retrieves the value of a system property or else return the specified
* optional fallback value.
*/
def propertyOrOption(prop: => String, alt: => Option[String])(implicit
trace: Trace
): Task[Option[String]] =
ZIO.systemWith(_.propertyOrOption(prop, alt))
/**
* Retrieves the value of the system-specific line separator.
*/
def lineSeparator(implicit trace: Trace): UIO[String] =
ZIO.systemWith(_.lineSeparator)
private val osName =
Option(scala.util.Try(java.lang.System.getProperty("os.name")).getOrElse("")).map(_.toLowerCase()).getOrElse("")
lazy val os: OS =
if (osName.contains("win")) OS.Windows
else if (osName.contains("mac")) OS.Mac
else if (osName.contains("nix") || osName.contains("nux") || osName.contains("aix")) OS.Unix
else if (osName.contains("sunos")) OS.Solaris
else OS.Unknown
sealed trait OS { self =>
def isWindows: Boolean = self == OS.Windows
def isMac: Boolean = self == OS.Mac
def isUnix: Boolean = self == OS.Unix
def isSolaris: Boolean = self == OS.Solaris
def isUnknown: Boolean = self == OS.Unknown
}
object OS {
case object Windows extends OS
case object Mac extends OS
case object Unix extends OS
case object Solaris extends OS
case object Unknown extends OS
}
}
