io.gatling.core.body.ElFileBodies.scala Maven / Gradle / Ivy

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/**
 * Copyright 2011-2016 GatlingCorp (http://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.body

import io.gatling.commons.util.Io._
import io.gatling.commons.validation._
import io.gatling.core.config.GatlingConfiguration
import io.gatling.core.session._
import io.gatling.core.session.el.{ El, ElCompiler }
import io.gatling.core.util.Resource
import io.gatling.core.util.cache._

class ElFileBodies(implicit configuration: GatlingConfiguration) {

  val charset = configuration.core.charset

  private val elFileBodyStringCache = {
      def compileFile(path: String): Validation[Expression[String]] =
        Resource.body(path).map { resource =>
          withCloseable(resource.inputStream) {
            _.toString(charset)
          }
        }.map(_.el[String])

    SelfLoadingThreadSafeCache[String, Validation[Expression[String]]](configuration.core.elFileBodiesCacheMaxCapacity, compileFile)
  }
  private val elFileBodyBytesCache = {
      def resource2BytesSeq(path: String): Validation[Expression[Seq[Array[Byte]]]] =
        Resource.body(path).map { resource =>
          ElCompiler.compile2BytesSeq(resource.string(charset), charset)
        }

    SelfLoadingThreadSafeCache[String, Validation[Expression[Seq[Array[Byte]]]]](configuration.core.elFileBodiesCacheMaxCapacity, resource2BytesSeq)
  }

  def asString(filePath: Expression[String]): Expression[String] =
    session =>
      for {
        path <- filePath(session)
        expression <- elFileBodyStringCache.get(path)
        body <- expression(session)
      } yield body

  def asBytesSeq(filePath: Expression[String]): Expression[Seq[Array[Byte]]] =
    session =>
      for {
        path <- filePath(session)
        expression <- elFileBodyBytesCache.get(path)
        body <- expression(session)
      } yield body
}