org.json4s.jackson.Serialization.scala Maven / Gradle / Ivy
package org.json4s
package jackson
import scala.reflect.Manifest
import java.io.OutputStream
/** Functions to serialize and deserialize a case class.
* Custom serializer can be inserted if a class is not a case class.
*
* Example:
* val hints = new ShortTypeHints( ... )
* implicit val formats = Serialization.formats(hints)
*
*
* @see org.json4s.TypeHints
*/
object Serialization extends Serialization {
import java.io.{Reader, Writer}
/** Serialize to String.
*/
def write[A <: AnyRef](a: A)(implicit formats: Formats): String =
JsonMethods.mapper.writeValueAsString(Extraction.decompose(a)(formats))
/** Serialize to Writer.
*/
def write[A <: AnyRef, W <: Writer](a: A, out: W)(implicit formats: Formats): W = {
JsonMethods.mapper.writeValue(out, Extraction.decompose(a)(formats))
out
}
def write[A <: AnyRef](a: A, out: OutputStream)(implicit formats: Formats) {
JsonMethods.mapper.writeValue(out, Extraction.decompose(a)(formats: Formats))
}
/** Serialize to String (pretty format).
*/
def writePretty[A <: AnyRef](a: A)(implicit formats: Formats): String =
JsonMethods.mapper.writerWithDefaultPrettyPrinter().writeValueAsString(Extraction.decompose(a)(formats))
/** Serialize to Writer (pretty format).
*/
def writePretty[A <: AnyRef, W <: Writer](a: A, out: W)(implicit formats: Formats): W = {
JsonMethods.mapper.writerWithDefaultPrettyPrinter.writeValue(out, Extraction.decompose(a)(formats))
out
}
/** Deserialize from a String.
*/
def read[A](json: String)(implicit formats: Formats, mf: Manifest[A]): A =
JsonMethods.parse(json, formats.wantsBigDecimal).extract(formats, mf)
@deprecated("You can use formats now to indicate you want to use decimals instead of doubles", "3.2.0")
def read[A](json: String, useBigDecimalForDouble: Boolean)(implicit formats: Formats, mf: Manifest[A]): A =
if (useBigDecimalForDouble) read(json)(formats.withBigDecimal, mf) else read(json)(formats.withDouble, mf)
/** Deserialize from a Reader.
*/
@deprecated("You can use formats now to indicate you want to use decimals instead of doubles", "3.2.0")
def read[A](in: Reader, useBigDecimalForDouble: Boolean)(implicit formats: Formats, mf: Manifest[A]): A = {
if (useBigDecimalForDouble) read(in)(formats.withBigDecimal, mf) else read(in)(formats.withDouble, mf)
}
/** Deserialize from a Reader.
*/
def read[A](in: Reader)(implicit formats: Formats, mf: Manifest[A]): A = {
JsonMethods.parse(in, formats.wantsBigDecimal).extract(formats, mf)
}
}