com.ebiznext.comet.schema.model.Trim.scala Maven / Gradle / Ivy
/*
*
* * Licensed to the Apache Software Foundation (ASF) under one or more
* * contributor license agreements. See the NOTICE file distributed with
* * this work for additional information regarding copyright ownership.
* * The ASF licenses this file to You under the Apache License, Version 2.0
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* * 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
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package com.ebiznext.comet.schema.model
import com.fasterxml.jackson.core.JsonParser
import com.fasterxml.jackson.databind.annotation.{JsonDeserialize, JsonSerialize}
import com.fasterxml.jackson.databind.ser.std.ToStringSerializer
import com.fasterxml.jackson.databind.{DeserializationContext, JsonDeserializer}
/** Big versus Fast data ingestion. Are we ingesting a file or a message stream ?
* @param value : FILE or STREAM
*/
@JsonSerialize(using = classOf[ToStringSerializer])
@JsonDeserialize(using = classOf[TrimDeserializer])
sealed case class Trim(value: String) {
override def toString: String = value
}
object Trim {
def fromString(value: String): Trim = {
value.toUpperCase() match {
case "LEFT" => Trim.LEFT
case "RIGHT" => Trim.RIGHT
case "BOTH" => Trim.BOTH
case "NONE" => Trim.NONE
}
}
object LEFT extends Trim("LEFT")
object RIGHT extends Trim("RIGHT")
object BOTH extends Trim("BOTH")
object NONE extends Trim("NONE")
val modes: Set[Trim] = Set(LEFT, RIGHT, BOTH, NONE)
}
class TrimDeserializer extends JsonDeserializer[Trim] {
override def deserialize(jp: JsonParser, ctx: DeserializationContext): Trim = {
val value = jp.readValueAs[String](classOf[String])
Trim.fromString(value)
}
}