二进制序列化 - 在 Scala 2.10 上替换 Marshal [英] Binary Serialization - replacing Marshal on scala 2.10

问题描述

由于不推荐使用 scala.util.Marshal，我该如何将旧代码迁移到 scala 2.10?

how can I migrate this old code to scala 2.10 since scala.util.Marshal is deprecated ?

object Serilaizer{
 def objectToBytes[T](foo: T)(implicit expected: ClassManifest[T]): Array[Byte] = {
    Marshal.dump(foo)
  }
  def bytesToObject[T](fooBytes: Array[Byte])(implicit expected: ClassManifest[T]): Option[T] = {
    Some(Marshal.load[T](fooBytes))
    }
  }

我看到了 SBinary 但它还没有发布.

I saw SBinary but it is not released yet.

推荐答案

这是迄今为止的一个想法，实现了 原始 Marshal 转储/加载 代码(如在 scala 2.9 中)，不确定这是最好的方法，但它似乎有效 >

this is what a came up with so far , implementing the original Marshal dump/load code (as in scala 2.9), not sure that this is the best way , but it seems to be working

object Serilaizer {
  def objectToBytes[T](foo: T): Array[Byte] = { // replace Marshal.dump(foo)
    val ba = new ByteArrayOutputStream()
    val out = new ObjectOutputStream(ba)
    out.writeObject(foo)
    out.close()
    ba.toByteArray
  }

  def bytesToObject[T](fooBytes: Array[Byte]): Option[T] = { // replace Marshal.load[T](foo)
    if (userDataBytes != null) {
      try {
        val in = new ObjectInputStream(new ByteArrayInputStream(fooBytes))
        val o = in.readObject.asInstanceOf[T]
        in.close()
        Some(o)
      }
      catch {
        case e: Exception => {
          throw new ClassCastException ("Serialization Problem", e)
          None
        }
      }
    }
    else {
      None
    }
  }
}

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