Thanks, the latest versions of Tomcat 4.1 already support it.
-------- David -----Mensaje original----- De: Nicolas Toper [mailto:[EMAIL PROTECTED] Enviado el: lunes, 15 de diciembre de 2003 18:56 Para: [EMAIL PROTECTED] Asunto: Re: gzip compression Apache could do that automatically... Otherwise, I'd use Tomcat and a filter servlet to do it: you could find some all ready to be used on the Web... Le Lundi 15 Décembre 2003 18:46, Carmona Perez, David a écrit : > Hi all, > > Does someone how can I make some action that activates compressing output > data using GZip? Gzip compression is an HTTP 1.1 standard feature. > > Ideally it would be great if it could be like an action, so that it's easy > to activate it on or off. I have tried this code: > > import java.io.IOException; > import java.io.OutputStream; > import java.util.Map; > import java.util.zip.GZIPOutputStream; > > import javax.servlet.ServletOutputStream; > import javax.servlet.http.HttpServletResponse; > > import org.apache.avalon.framework.parameters.Parameters; > import org.apache.cocoon.acting.AbstractAction; > import org.apache.cocoon.environment.ObjectModelHelper; > import org.apache.cocoon.environment.Redirector; > import org.apache.cocoon.environment.Request; > import org.apache.cocoon.environment.SourceResolver; > import org.apache.cocoon.environment.http.HttpEnvironment; > import org.apache.cocoon.environment.http.HttpResponse; > > public class CompressAction extends AbstractAction { > class StreamGzip extends ServletOutputStream { > public StreamGzip(OutputStream out) throws IOException { > gzip = new GZIPOutputStream(out); > } > /** @see java.io.OutputStream#write(int) */ > public void write(int b) throws IOException { > gzip.write(b); > } > /** @see java.io.OutputStream#close() */ > public void close() throws IOException { > gzip.close(); > } > /** @see java.io.OutputStream#flush() */ > public void flush() throws IOException { > gzip.flush(); > } > private GZIPOutputStream gzip; > } > class GzipResponse extends HttpResponse { > GzipResponse(HttpServletResponse resp) throws IOException { > super(resp); > os = new StreamGzip(resp.getOutputStream()); > } > public ServletOutputStream getOutputStream() throws IOException { > return os; > } > StreamGzip os; > } > public Map act(Redirector redirector, SourceResolver resolver, Map > objectModel, String source, Parameters parameters) throws Exception { > Request pet = ObjectModelHelper.getRequest(objectModel); > String accept = pet.getHeader("Accept-Encoding"); > if (accept != null && accept.indexOf("gzip") >= 0) { > GzipResponse resp = new > GzipResponse((HttpServletResponse)objectModel.get(HttpEnvironment.HTTP_RESP >ONSE_OBJECT)); resp.setHeader("Content-Encoding", "gzip"); > objectModel.put(ObjectModelHelper.RESPONSE_OBJECT, resp); > return EMPTY_MAP; > } > return null; > } > } > > But it doesn't work, because the HttpEnvironment holds also holds a > reference to the outputstream. Which is the cleanest way to perform this? > Any suggestion will be greatly appreciated. > > > -------- > David > > > --------------------------------------------------------------------- > 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] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
