JacksonKotlin.kt

import com.fasterxml.jackson.annotation.JsonIgnoreProperties
import com.fasterxml.jackson.annotation.JsonProperty
import com.fasterxml.jackson.dataformat.xml.XmlMapper
import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlElementWrapper
import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlProperty


@JsonIgnoreProperties(ignoreUnknown = true)
class MedlineCitation(
    @JacksonXmlProperty(isAttribute = true, localName = "Status")
    val Status: String? = null,
    @JacksonXmlProperty(isAttribute = true, localName = "Owner")
    val owner: String? = null


)

@JsonIgnoreProperties(ignoreUnknown = true)
class PubmedArticle(
    @JsonProperty("MedlineCitation")
    val medlineCitation: MedlineCitation? = null
)

@JsonIgnoreProperties(ignoreUnknown = true)
data class PubmedArticleSet(
    @get:JacksonXmlElementWrapper(useWrapping = false)
    @get:JacksonXmlProperty(localName = "PubmedArticle")
    var PubmedArticle: List<PubmedArticle> = listOf()
)

class EfetchParser {
    fun test() {
        var text = """<PubmedArticleSet>
            |<PubmedArticle><MedlineCitation Status="A" Owner="B"></MedlineCitation></PubmedArticle>
            |<PubmedArticle><MedlineCitation Status="A" Owner="B"></MedlineCitation></PubmedArticle>
            |</PubmedArticleSet>""".trimMargin()
      
        val xmlMapper = XmlMapper()
        val parsed = xmlMapper.readValue(text, PubmedArticleSet::class.java)
        println(parsed.PubmedArticle?.get(0)?.medlineCitation?.Status)
    }
}


fun main() {
    val efp = EfetchParser()
    efp.test()
}