ujson.InputStreamParser.scala Maven / Gradle / Ivy

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package ujson

import scala.annotation.{switch, tailrec}
import java.nio.ByteBuffer

import upickle.core.{BufferingInputStreamParser, ObjArrVisitor, Visitor}
/**
  * Parser that reads in bytes from an InputStream, buffering them in memory
  * until a `reset` call discards them.
  *
  * Mostly the same as ByteArrayParser, except using an UberBuffer rather than
  * reading directly from an Array[Byte].
  *
  * Generally not meant to be used directly, but via [[ujson.Readable.fromReadable]]
  */
final class InputStreamParser[J](val inputStream: java.io.InputStream,
                                 val minBufferStartSize: Int = BufferingInputStreamParser.defaultMinBufferStartSize,
                                 val maxBufferStartSize: Int = BufferingInputStreamParser.defaultMaxBufferStartSize)
extends ByteParser[J] with upickle.core.BufferingInputStreamParser{
  protected[this] final def close() = {}
}

object InputStreamParser extends Transformer[java.io.InputStream]{
  def transform[T](j: java.io.InputStream, f: Visitor[_, T]) = {
    val p = new InputStreamParser[T](j)
    p.parse(f)
  }
}