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Age.scala
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Age.scala
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/*
* Copyright 2013 http4s.org
*
* 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.http4s
package headers
import org.http4s.parser.AdditionalRules
import org.typelevel.ci._
import scala.concurrent.duration._
import scala.util.Try
object Age {
def fromLong(age: Long): ParseResult[Age] =
if (age >= 0)
ParseResult.success(apply(age))
else
ParseResult.fail("Invalid age value", s"Age param $age must be more or equal to 0 seconds")
def unsafeFromDuration(age: FiniteDuration): Age =
fromLong(age.toSeconds).fold(throw _, identity)
def unsafeFromLong(age: Long): Age =
fromLong(age).fold(throw _, identity)
def parse(s: String): ParseResult[Age] =
ParseResult.fromParser(parser, "Invalid Age header")(s)
private[http4s] val parser = AdditionalRules.NonNegativeLong.map(unsafeFromLong)
implicit val headerInstance: Header[Age, Header.Single] =
Header.createRendered(
ci"Age",
_.age,
parse,
)
}
/** Constructs an Age header.
*
* The value of this field is a positive number of seconds (in decimal) with an estimate of the amount of time since the response
*
* @param age age of the response
*/
final case class Age private (age: Long) { // scalafix:ok Http4sGeneralLinters.nonValidatingCopyConstructor; bincompat until 1.0
def duration: Option[FiniteDuration] = Try(age.seconds).toOption
def unsafeDuration: FiniteDuration = age.seconds
}