Я пытаюсь создать функцию для анализа моих записей, и я получаю два разных поведения, когда я вызываю функцию по сравнению с ее жестким кодированием:
Я использую:
import org.json4s.JsonAST.{JString, JField, JObject, JArray}
import org.json4s.jackson.JsonMethods._
val parsed = parse("""{"timestamp":"2016-06-02 13:40:16,772","tableName":"stg_mde_campaign_master","dbName":"stg_bankrtl_mde","owner":"hive","location":"null"}""")
val output = for {
JObject(child) <- parsed
JField("timestamp", JString(subject1)) <- child
JField("tableName", JString(obj1)) <- child
} yield (subject1,obj1)
Выведет (что я хочу):
output: List[(String, String)] = List((2016-06-02 13:40:16,772,stg_mde_campaign_master)
но когда я передаю его функции, я получаю:
def getSubOb(record: String, subject:String, obj:String): List[(String, String)] = {
val parsed = parse(record)
val output: List[(String, String)] = for {
JObject(child) <- parsed
JField(subject, JString(subject1)) <- child
JField(obj, JString(obj1)) <- child
} yield (subject1, obj1)
output
}
val something = getSubOb("""{"timestamp":"2016-06-02 13:40:16,772","tableName":"stg_mde_campaign_master","dbName":"stg_bankrtl_mde","owner":"hive","location":"null"}""", "timestamp", "tableName")
Вывод действует очень странно:
something: List[(String, String)] = List((2016-06-02 13:40:16,772,2016-06-02 13:40:16,772), (2016-06-02 13:40:16,772,stg_mde_campaign_master), (2016-06-02 13:40:16,772,stg_bankrtl_mde), (2016-06-02 13:40:16,772,hive), (2016-06-02 13:40:16,772,null), (stg_mde_campaign_master,2016-06-02 13:40:16,772), (stg_mde_campaign_master,stg_mde_campaign_master), (stg_mde_campaign_master,stg_bankrtl_mde), (stg_mde_campaign_master,hive), (stg_mde_campaign_master,null), (stg_bankrtl_mde,2016-06-02 13:40:16,772), (stg_bankrtl_mde,stg_mde_campaign_master), (stg_bankrtl_mde,stg_bankrtl_mde), (stg_bankrtl_mde,hive), (stg_bankrtl_mde,null), (hive,2016-06-02 13:40:16,772), (hive,stg_mde_campaign_master), (hive,stg_bankrtl_mde), (hive,hive), (hive,null), (null,2016-06-02 13:40:16,772), (null,stg_mde_campaign_...