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SelfAwareLogger.scala
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SelfAwareLogger.scala
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/*
* Copyright 2018 Typelevel
*
* 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 org.typelevel.log4cats
import cats._
trait SelfAwareLogger[F[_]] extends Logger[F] {
def isTraceEnabled: F[Boolean]
def isDebugEnabled: F[Boolean]
def isInfoEnabled: F[Boolean]
def isWarnEnabled: F[Boolean]
def isErrorEnabled: F[Boolean]
override def mapK[G[_]](fk: F ~> G): SelfAwareLogger[G] = SelfAwareLogger.mapK(fk)(this)
override def withModifiedString(f: String => String): SelfAwareLogger[F] =
SelfAwareLogger.withModifiedString[F](this, f)
}
object SelfAwareLogger {
def apply[F[_]](implicit ev: SelfAwareLogger[F]): SelfAwareLogger[F] = ev
private def mapK[G[_], F[_]](f: G ~> F)(logger: SelfAwareLogger[G]): SelfAwareLogger[F] =
new SelfAwareLogger[F] {
def isTraceEnabled: F[Boolean] =
f(logger.isTraceEnabled)
def isDebugEnabled: F[Boolean] =
f(logger.isDebugEnabled)
def isInfoEnabled: F[Boolean] =
f(logger.isInfoEnabled)
def isWarnEnabled: F[Boolean] =
f(logger.isWarnEnabled)
def isErrorEnabled: F[Boolean] =
f(logger.isErrorEnabled)
def error(t: Throwable)(message: => String): F[Unit] =
f(logger.error(t)(message))
def warn(t: Throwable)(message: => String): F[Unit] =
f(logger.warn(t)(message))
def info(t: Throwable)(message: => String): F[Unit] =
f(logger.info(t)(message))
def debug(t: Throwable)(message: => String): F[Unit] =
f(logger.debug(t)(message))
def trace(t: Throwable)(message: => String): F[Unit] =
f(logger.trace(t)(message))
def error(message: => String): F[Unit] =
f(logger.error(message))
def warn(message: => String): F[Unit] =
f(logger.warn(message))
def info(message: => String): F[Unit] =
f(logger.info(message))
def debug(message: => String): F[Unit] =
f(logger.debug(message))
def trace(message: => String): F[Unit] =
f(logger.trace(message))
}
private def withModifiedString[F[_]](
l: SelfAwareLogger[F],
f: String => String
): SelfAwareLogger[F] =
new SelfAwareLogger[F] {
override def isTraceEnabled: F[Boolean] = l.isTraceEnabled
override def isDebugEnabled: F[Boolean] = l.isDebugEnabled
override def isInfoEnabled: F[Boolean] = l.isInfoEnabled
override def isWarnEnabled: F[Boolean] = l.isWarnEnabled
override def isErrorEnabled: F[Boolean] = l.isErrorEnabled
override def error(message: => String): F[Unit] = l.error(f(message))
override def error(t: Throwable)(message: => String): F[Unit] = l.error(t)(f(message))
override def warn(message: => String): F[Unit] = l.warn(f(message))
override def warn(t: Throwable)(message: => String): F[Unit] = l.warn(t)(f(message))
override def info(message: => String): F[Unit] = l.info(f(message))
override def info(t: Throwable)(message: => String): F[Unit] = l.info(t)(f(message))
override def debug(message: => String): F[Unit] = l.debug(f(message))
override def debug(t: Throwable)(message: => String): F[Unit] = l.debug(t)(f(message))
override def trace(message: => String): F[Unit] = l.trace(f(message))
override def trace(t: Throwable)(message: => String): F[Unit] = l.trace(t)(f(message))
}
}