scalax.file.ramfs.Handler.scala Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of scala-io-file_2.11 Show documentation

scala-io-file

The newest version!

/*                     __                                               *\
**     ________ ___   / /  ___     Scala API                            **
**    / __/ __// _ | / /  / _ |    (c) 2009-2010, Jesse Eichar          **
**  __\ \/ /__/ __ |/ /__/ __ |    http://scala-lang.org/               **
** /____/\___/_/ |_/____/_/ | |                                         **
**                          |/                                          **
\*                                                                      */

package scalax.file.ramfs
import java.net._
import java.lang.Class

class Handler extends URLStreamHandler {
  def openConnection(url:URL) = {
    require(url.getProtocol == RamFileSystem.protocol)
    require(url.getHost contains "!")

    new RamURLConnection(url)
  }
}

object Handler extends Handler

class RamURLConnection(url:URL) extends URLConnection(url) {
  lazy val path = {
    val Array(id,path) = url.toString.drop(RamFileSystem.protocol+"://" size).split("!")
    val fs = RamFileSystem(RamFileSystem.RamFsId(id))
    val segments = if(path startsWith "/") fs.separator +: path.split("/") else path.split("/")
    fs.fromSeq(segments)
  }
  def connect = {}

  override def getInputStream = {
    require(getDoInput, "getDoInput must be true")
    path.inputStream.open().get
  }

  override def getOutputStream = {
    require(getDoOutput, "getDoOutput must be true")
    path.outputStream().open().get
  }

  override def getLastModified = path.lastModified

  override def getContentLength = path.size.map{_.toInt}.getOrElse(-1)
}