57 lines
1.7 KiB
Kotlin
57 lines
1.7 KiB
Kotlin
package drills.drill07.exercise3.replier
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import javax.jms.Message
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import javax.jms.Queue
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import javax.jms.QueueConnectionFactory
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import javax.jms.Session
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import javax.jms.ObjectMessage
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import javax.jms.TextMessage
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abstract class AbstarctReplier(
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queueName: String,
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private val shared: Boolean = false
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) : Replier {
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private val factory: QueueConnectionFactory = this.getFactory()
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private val connection = factory.createQueueConnection()
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private val session = connection.createQueueSession(
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false,
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Session.AUTO_ACKNOWLEDGE
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)
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private val mainQueue = session.createQueue(queueName)
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private val receiver = session.createReceiver(mainQueue)
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private val secondarySession = connection.createQueueSession(
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false,
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Session.AUTO_ACKNOWLEDGE
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)
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override fun onRequest(buildResponse: (Message) -> Message) {
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receiver.setMessageListener {
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val replyQueue = it.jmsReplyTo as Queue
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val sender = secondarySession.createSender(replyQueue)
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val replyMessage = buildResponse(it)
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if (shared)
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replyMessage.jmsCorrelationID = it.jmsMessageID
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sender.send(replyMessage)
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}
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}
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override fun createTextMessage(text: String): TextMessage = session.createTextMessage(text)
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override fun createObjectMessage(): ObjectMessage = session.createObjectMessage()
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override fun createMessage(): Message = session.createMessage()
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override fun start() {
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connection.start()
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}
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override fun close() {
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session.close()
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connection.close()
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}
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abstract fun getFactory(uri: String = "tcp://localhost:61616"): QueueConnectionFactory
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}
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