CSP for Java
(JCSP) 1.1-rc4

Class Deparaplex

  extended by org.jcsp.plugNplay.Deparaplex
All Implemented Interfaces:

public final class Deparaplex
extends Object
implements CSProcess

This demultiplexes data from its input channel to its output channel array.

Process Diagram


Deparaplex is a process to convert the single stream of Object[] packets sent from a Paraplex process on the other end of its in channel back to separate streams (its out channels). It assumes that Paraplex operates on the same size array of channels as its out array. It conforms to contract required by Paraplex for a process receiving its packets.

In each cycle, it inputs one packet and outputs its contents in parallel to each of its output channels. The parallel output means that the process will wait until each item is accepted by every channel -- in whatever order is demanded by its environment. The ordering of the channels in the out array, therefore, makes no difference to the functionality of this process.

Channel Protocols

Input Channels
in Object[] A packet carrying the paraplexed data.
Output Channels
out[] Object Most channels in this package carry integers.


 import org.jcsp.lang.*;
 import org.jcsp.plugNplay.*;
 public class DeparaplexExample {
   public static void main (String[] args) {
     final One2OneChannel[] a = Channel.one2oneArray (3);
     final One2OneChannel b = Channel.one2one ();
     final One2OneChannel[] c = Channel.one2oneArray (3);
     final One2OneChannel d = Channel.one2one ();
     new Parallel (
       new CSProcess[] {
         new Numbers (a[0].out ()),
         new Squares (a[1].out ()),
         new Fibonacci (a[2].out ()),
         new Paraplex (Channel.getInputArray (a), b.out ()),
         new Deparaplex (b.in (), Channel.getOutputArray (c)),
         new Paraplex (Channel.getInputArray (c), d.out ()),
         new CSProcess () {
           public void run () {
             System.out.println ("\n\t\tNumbers\t\tSquares\t\tFibonacci\n");
             while (true) {
               Object[] data = (Object[]) d.in ().read ();
               for (int i = 0; i < data.length; i++) {
                 System.out.print ("\t\t" + data[i]);
               System.out.println ();
     ).run ();

P.H. Welch
See Also:
Paraplex, Multiplex, Demultiplex

Constructor Summary
Deparaplex(ChannelInput in, ChannelOutput[] out)
          Construct a new Deparaplex process with the input Channel in and the output Channels out.
Method Summary
 void run()
          The main body of this process.
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail


public Deparaplex(ChannelInput in,
                  ChannelOutput[] out)
Construct a new Deparaplex process with the input Channel in and the output Channels out. The ordering of the Channels in the out array make no difference to the functionality of this process.

in - the input channel
out - the output Channels
Method Detail


public void run()
The main body of this process.

Specified by:
run in interface CSProcess

CSP for Java
(JCSP) 1.1-rc4

Submit a bug or feature to jcsp-team@kent.ac.uk
Version 1.1-rc4 of the JCSP API Specification (Copyright 1997-2008 P.D.Austin and P.H.Welch - All Rights Reserved)
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