io.gatling.jms.client.JmsProducerPool.scala Maven / Gradle / Ivy

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/*
 * Copyright 2011-2019 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.jms.client

import java.util.Collections
import java.util.concurrent.ConcurrentHashMap
import javax.jms.{ Destination, MessageProducer }

import scala.collection.JavaConverters._

private[client] final case class CachedProducerKey(destination: Destination, deliveryMode: Int)

class JmsProducerPool(sessionPool: JmsSessionPool) {

  private val registeredProducers = Collections.newSetFromMap(new ConcurrentHashMap[MessageProducer, java.lang.Boolean])
  private val producers = new ConcurrentHashMap[CachedProducerKey, ThreadLocal[JmsProducer]]

  def producer(destination: Destination, deliveryMode: Int): JmsProducer =
    producers
      .computeIfAbsent(
        CachedProducerKey(destination, deliveryMode),
        key =>
          ThreadLocal.withInitial[JmsProducer](() => {
            val jmsSession = sessionPool.jmsSession()
            val producer = jmsSession.createProducer(key.destination)
            producer.setDeliveryMode(key.deliveryMode)
            registeredProducers.add(producer)
            JmsProducer(jmsSession, producer)
          })
      )
      .get()

  def close(): Unit = registeredProducers.asScala.foreach(_.close())
}