Hello,
I'd like to propose an addition to the Servlet specification
through the JCP, but thought I'd ask first on the tomcat-dev
list if anyone has seen a similar request.
There is currently no way in the Servlet spec to know the number
of bytes that have been read as a ServletRequest is being processed.
By the time Servlet.service() or Filter.doFilter() are called,
the *entire* InputStream has been read from the socket.
But what if one is trying to implement certain behavior after every
n bytes have been consumed? There is presently no way to do this
without writing a custom Servlet Container (or extending Coyote).
Likewise, the same holds true for knowing the number of bytes that
have been written to an OutputStream in "real-time."
I believe these capabilities can be supported with the addition of
one new EventListener interface, something like:
public interface javax.servlet.ServletStreamListener {
/**
* Called repeatedly by the Servlet container
* after n bytes have been read/written to/from a ServletRequest
* or ServletResponse, where n is the integer returned by
* getCallbackThreshold().
*/
public void thresholdReached();
/**
* The number of bytes to read/write before calling
* thresholdReached().
*/
public int getCallbackThreshold();
}
Has anyone seen this kind of specification request made before? I'd
rather not waste the time of JSR154/JCP if this is a common request that
has been previously shot down.
Thank you,
Eric H. Jung
[EMAIL PROTECTED]
--
http://www.fastmail.fm - IMAP accessible web-mail
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
