Distributing 1 Stream (Channel) to 2 Destinations

Question

I want to distribute one stream to 2 destinations. For example the incoming flow from some Web Browser to the Web Server to be split to the Web Browser and Another user stream like "System.out".
What is better way to do this:
1. Using "java.io.*" classes or using "java.nio.*" classes;
2. Using Pipe or standard way. If Pipe is better choice how to do that. I am not so familiar with Pipes.
Can I find some working examples with similar functionallity?

Answer 1

You can implement something like this :
import java.io.*;
public class DoubleStream extends InputStream {
  Vector outputs = new Vector(2);
  public DoubleStream(InputStream source) {
    super(source);
  public int read() throws IOException {
    int data = super.read();
    for(int i=outputs.size(); i-->0; )  ((OutputStream)outputs.get(i)).write(data);
    return data;
  public void addOutput(OutputStream os) {  outputs.add(os);  }
}of course may be you will also need some exception handling, EOS handling etc... But this is like direction where to move on...