CODEWITHSUNDEEP
scalapipenamed-pipes
balavins
balavins

Reputation: 19

Named Pipes in Scala

I would like to use a Named pipe to connect between Scala and Python. However, I am not able to find examples of named pipes in Scala. My Python program generates data and sends the data to either a C++ program or a Scala program. I am able to get the named pipes connection working between Python and C++ but not between Python and Scala. The data producer is the Python file while either C++ or Scala is the consumer. I My OS is Ubuntu 14.04. It would be great if anyone could post examples of named-pipes in scala. Thanks in advance

Upvotes: 1

Views: 870

Answers (1)

jwvh
jwvh

Reputation: 51271

Here's a Scala-centric approach just to get things started.

// first mkfifo /tmp/NP

scala> import scala.io.Source
import scala.io.Source

// this will block until the pipe is written to
scala> val itr = Source.fromFile("/tmp/NP")
itr: scala.io.BufferedSource = non-empty iterator

// after I write "12345 to the end" to the pipe I can work with the iterator

scala> itr.descr
res9: String = file:/tmp/NP

scala> itr.hasNext
res10: Boolean = true

scala> itr.next
res11: Char = 1

scala> itr.next
res12: Char = 2

scala> itr.mkString
res13: String =
"345 to the end
"

etc.

Upvotes: 1

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