If you use the RequestListener interface you have access to the
Environment. If you look at SampleRequestListener you will see it obtain
the Request. A similar method can be used to get the response (i.e. -
ObjectModelHelper.getResponse()).
Having said that, HttpResponse simply wraps
javax.servlet.http.HttpServletResponse. The getBufferSize() method in
HttpResponse consists of
public int getBufferSize() {
return this.res.getBufferSize();
}
this.res is the HttpServletResponse.
Now getBufferSize() is defined in javax.servlet.ServletResponse as
Returns the actual buffer size used for the response. If no buffering is
used, this method returns 0.
This leads me to believe that it is only the size of the buffer, not the
size of the response data.
Unfortunately, what you may have to do is to extend Cocoon's
HttpResponse with your own and replace the HttpResponse in the
Environment with yours in the RequestListener's onRequestStart() method
and then put the real one back in the onRequestEnd() method after
appropriately updating it.
Ralph
Laurent Perez wrote:
so you want to execute biz logic depending on the total size of the http
response ...
yep, exactly : I'm delivering content to poor browsers which, for
example, will not accept more than 50KB from the http response, the
biz logic is nothing too fancy, it only logs warnings about response
being too rich.
I don't think it is possible to retrieve response headers using the
servlet API - however check the api docs to be sure.
well, there is org.apache.cocoon.environment.http.HttpResponse which
implements the Response interface, and offers int getBufferSize() and
ServletOutputStream getOutputStream(). getBufferSize() sounds good,
however it's not documented in 2.1.7 javadocs :/
Or I could tell the Cocoon servlet itself to write into a
java.io.ByteArrayOutputStream, then do a size() to get the content
length, process my logic, then use
writeTo(HttpResponse.getOutputStream) to deliver the stream to the
client, however this sounds overkill.
what I miss is : can I access
org.apache.cocoon.environment.http.HttpResponse from a "proper" place,
or should I have to hack its source directly ? Because this class uses
setContentLength(), I could probably fit my logic call in this method.
laurent
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
