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• nlg-spec-transformer
• 2.0.8
• source code
• CustomOptionPhraseDeserializer.scala

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org.openprovenance.prov.scala.nlgspec_transformer.CustomOptionPhraseDeserializer.scala Maven / Gradle / Ivy

package org.openprovenance.prov.scala.nlgspec_transformer

import com.fasterxml.jackson.core.JsonParser
import com.fasterxml.jackson.databind.{DeserializationContext, JsonDeserializer}
import org.openprovenance.prov.scala.nlgspec_transformer.defs.StringPhrase
import org.openprovenance.prov.scala.nlgspec_transformer.specTypes.Phrase

class CustomOptionPhraseDeserializer extends JsonDeserializer [Option[Phrase]]  {
  override def deserialize(jsonParser: JsonParser, deserializationContext: DeserializationContext): Option[Phrase] = {
    if (jsonParser.isExpectedStartObjectToken) {
      val value: Phrase =jsonParser.readValueAs(classOf[Phrase])
      Some(value)
    } else {
      val s = jsonParser.readValueAs(classOf[String])
      Some(new StringPhrase(s))
    }
  }
}