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/*
* Copyright 2011-2024 GatlingCorp (https://gatling.io)
*
* 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 io.gatling.core.protocol
import scala.collection.mutable
import io.gatling.core.CoreComponents
import io.gatling.core.config.GatlingConfiguration
import io.gatling.core.session.Session
object Protocol {
def indexByType(protocols: Iterable[Protocol]): Protocols =
protocols.map(p => p.getClass.asInstanceOf[Class[Protocol]] -> p).toMap
}
trait Protocol
trait ProtocolKey[P <: Protocol, C <: ProtocolComponents] {
def protocolClass: Class[Protocol]
def defaultProtocolValue(configuration: GatlingConfiguration): P
def newComponents(coreComponents: CoreComponents): P => C
}
object ProtocolComponents {
val NoopOnExit: Session => Unit = _ => ()
}
trait ProtocolComponents {
def onStart: Session => Session
def onExit: Session => Unit
}
final class ProtocolComponentsRegistries(coreComponents: CoreComponents, globalProtocols: Protocols) {
private val componentsFactoryCache = mutable.Map.empty[ProtocolKey[_, _], Protocol => ProtocolComponents]
private val defaultProtocolValueCache = mutable.Map.empty[ProtocolKey[_, _], Protocol]
def scenarioRegistry(scenarioProtocols: Protocols): ProtocolComponentsRegistry =
new ProtocolComponentsRegistry(
coreComponents,
globalProtocols ++ scenarioProtocols,
componentsFactoryCache,
defaultProtocolValueCache
)
}
final class ProtocolComponentsRegistry(
coreComponents: CoreComponents,
protocols: Protocols,
componentsFactoryCache: mutable.Map[ProtocolKey[_, _], Protocol => ProtocolComponents],
defaultProtocolValueCache: mutable.Map[ProtocolKey[_, _], Protocol]
) {
private val componentsCache = mutable.Map.empty[ProtocolKey[_, _], ProtocolComponents]
private def computeComponentsFactory(key: ProtocolKey[_, _]): Protocol => ProtocolComponents =
key.newComponents(coreComponents).asInstanceOf[Protocol => ProtocolComponents]
private def computeDefaultProtocolValue[P <: Protocol](key: ProtocolKey[P, _]): P =
defaultProtocolValueCache.getOrElseUpdate(key, key.defaultProtocolValue(coreComponents.configuration)).asInstanceOf[P]
private def computeComponent[P <: Protocol, C <: ProtocolComponents](key: ProtocolKey[P, C]): ProtocolComponents = {
val componentsFactory = componentsFactoryCache.getOrElseUpdate(key, computeComponentsFactory(key))
val protocol = protocols.getOrElse(key.protocolClass, computeDefaultProtocolValue(key))
componentsFactory(protocol)
}
def components[P <: Protocol, C <: ProtocolComponents](key: ProtocolKey[P, C]): C =
componentsCache.getOrElseUpdate(key, computeComponent(key)).asInstanceOf[C]
def onStart: Session => Session =
componentsCache.values.foldLeft(Session.Identity)(_ andThen _.onStart)
def onExit: Session => Unit =
session => componentsCache.values.foreach(_.onExit(session))
}
