Alan Williamson wrote:
> aaah, well i am writing my own response out with the following:
>
> ------------------------
>
> public void send(Response response) throws IOException {
> try{
>
> response.setCharacterEncoding("UTF-8");
> response.setContentLength( length );
> response.setContentType( httpContentType );
> response.setStatus( httpResponseCode );
> response.setMessage( httpResponseText );
>
> if ( cookieOut != null ) response.addHeader("Set-Cookie",
> cookieOut );
> if ( locationOut != null ) response.addHeader("Location",
> locationOut );
> if ( eTag != null ) response.addHeader( "ETag", eTag );
> if ( lastModified != null ) response.addHeader( "Last-Modified",
> DateUtil.getHttpDate(lastModified) );
>
> if ( !bSendHeaderOnly ){
> ByteChunk chunk = new ByteChunk( length );
> chunk.append( bodyToSend, 0, length );
> OutputBuffer buffer = response.getOutputBuffer();
> buffer.doWrite(chunk, response);
> }
>
> }finally{
> response.finish();
> }
> }
> ------------------------
>
> so it does seem to suggest that i have to manage this myself,
> determining if the client can accept GZIP or not
Hum..I think the client will send the appropriate header if he supports
it. Based on that header, Grizzly will GZIP the response. Class
com.sun.grizzly.http.DefaultProcessorTask has:
> /**
> * Check for compression
> *
> */
> private boolean isCompressable(){
> // Compression only since HTTP 1.1
> if (! http11)
> return false;
>
> // Check if browser support gzip encoding
> MessageBytes acceptEncodingMB =
> request.getMimeHeaders().getValue("accept-encoding");
>
> if ((acceptEncodingMB == null)
> || (acceptEncodingMB.indexOf("gzip") == -1))
> return false;
>
> // Check if content is not allready gzipped
> MessageBytes contentEncodingMB =
> response.getMimeHeaders().getValue("Content-Encoding");
>
> if ((contentEncodingMB != null)
> && (contentEncodingMB.indexOf("gzip") != -1))
> return false;
>
> // If force mode, allways compress (test purposes only)
> if (compressionLevel == 2)
> return true;
>
> // Check for incompatible Browser
> if (noCompressionUserAgents != null) {
> MessageBytes userAgentValueMB =
> request.getMimeHeaders().getValue("user-agent");
> if (userAgentValueMB != null) {
> String userAgentValue = userAgentValueMB.toString();
>
> if (inStringArray(noCompressionUserAgents, userAgentValue))
> return false;
> }
> }
>
> // Check if suffisant len to trig the compression
> int contentLength = response.getContentLength();
> if ((contentLength == -1)
> || (contentLength > compressionMinSize)) {
> // Check for compatible MIME-TYPE
> if (compressableMimeTypes != null)
> return (startsWithStringArray(compressableMimeTypes,
> response.getContentType()));
> }
>
> return false;
> }
>
Hence if your client add the accept-encoding: gzip, compression should
starts. If that's not the case, then we have a bug :-)
A+
-- Jeanfrancois
>
> Jeanfrancois Arcand wrote:
>> Hi Alan,
>>
>> Alan Williamson wrote:
>>> Can some explain how outgoing compression is suppose to work within
>>> Grizzly?
>>>
>>> I *think* i may have misunderstood it. I have it set to on, and
>>> compress anything above 15KB. However nothing is being compressed.
>>>
>>> I take it then when i do something like this:
>>>
>>> OutputBuffer buffer = response.getOutputBuffer();
>>> buffer.doWrite(chunk, response);
>>>
>>> Grizzly isn't automatically compressing this if the outgoing client
>>> supports GZIP?
>>
>> Yes, via its output filter
>>
>> https://grizzly.dev.java.net/nonav/xref/com/sun/grizzly/tcp/http11/filters/GzipOutputFilter.html
>>
>>>
>>> does that mean i have to manage this myself?
>>
>> No grizzly supports it (at least in GlassFish :-))
>>
>> http://weblogs.java.net/blog/jfarcand/archive/2006/06/enabling_http_c_1.html
>>
>>
>> How did you configure it exactly? If it doesn't work, it probably
>> because of a bug. Last week I've ported some final fix from 1.0 which
>> we missed. Which version of Grizzly are you using?
>>
>> Thanks
>>
>> -- Jeanfrancois
>>
>>
>>
>>>
>>> thanks
>>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe_at_grizzly.dev.java.net
>> For additional commands, e-mail: users-help_at_grizzly.dev.java.net
>>
>