Process xml content using java StAX API

xml_process.kt

while (xmlReader.hasNext()) {
    xmlReader.next()

    if (xmlReader.eventType == XMLStreamConstants.START_ELEMENT && xmlReader.localName == "F") {
        origin = xmlReader.getAttributeValue(null, "o")
        destination = xmlReader.getAttributeValue(null, "d")
        route = xmlReader.getAttributeValue(null, "r")
    } else if (xmlReader.eventType == XMLStreamConstants.START_ELEMENT && xmlReader.localName == "T") {
        ticketCode = xmlReader.getAttributeValue(null, "t")
    } else if (xmlReader.eventType == XMLStreamConstants.START_ELEMENT && xmlReader.localName == "FF") {
        fulfilmentMethod = xmlReader.getAttributeValue(null, "fm")
        withEffectFrom = xmlReader.getAttributeValue(null, "f")
        withEffectUntil = xmlReader.getAttributeValue(null, "u")
        publicAvailabilityDate = xmlReader.getAttributeValue(null, "p")
        rcsProductReference = xmlReader.getAttributeValue(null, "k")
        seasonTicketDetails = xmlReader.getAttributeValue(null, "s")

        rcsFlows.put(RcsFlow(origin, destination, route, ticketCode, fulfilmentMethod, withEffectFrom,
                withEffectUntil, publicAvailabilityDate, rcsProductReference, seasonTicketDetails))
    }
}