android - Is there a simple “tee” filter for Java streams?

Question

For debugging purpouses I would like to dump the content of an output stream into a file while it is processed. The stream is parsed by org.xml.sax.XMLReader which will comsume the data.

I would gess one need a filter to archive this and before writing one my self I wanted to ask if there is a ready made version allready.

UPDATE:

Should habe mentioned that I work on Android.

What Do I have:

        final org.apache.http.HttpEntity responseEntity = response.getEntity ();
        final java.io.InputStream content = responseEntity.getContent ();
        final java.io.InputStreamReader contentReader =
           new java.io.InputStreamReader (content, "UTF-8");

So I have an java.io.InputStream and an InputStreamReader.

Answer 1

Commons IO to the rescue! Check out TeeInputStream and TeeOutputStream.