Re: [Simpleweb-Support] HTTP Compression
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Re: [Simpleweb-Support] HTTP Compression
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From: Brian D. <wic...@gm...> - 2005-12-14 19:51:27
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Hmm... can't seem to get this to work..
also a couple things bother me... first.. in order to do it this way I
won't be able to set the content-length because whatever i set would
be wrong.. also.. compression should be handled at the framework level
if possible.. so.. I was really just wondering why it wasn't
supported... out of the box per-se
anyway.. thanks for the help!
/Brian
On 12/13/05, Brian Davis <wic...@gm...> wrote:
> Hey cool.. I will look at this in a day or two and let you know how it
> goes.. did you guys do anything with deflate or just gzip?
>
> /Brian
>
>
> On 12/13/05, Christophe Roudet <cr...@ac...> wrote:
> > I have done this with a custom ProtocolHandler:
> >
> > public class ServerHandler implements ProtocolHandler {
> > private ProtocolHandler _handler;
> > private static final Logger _logger =3D
> > Logger.getLogger(ServerHandler.class);
> >
> > // =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> > // Constructor
> > // =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> >
> > public ServerHandler(ProtocolHandler handler) {
> > _handler =3D handler;
> > }
> >
> > // =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> > // Public methods
> > // =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> >
> > public void handle(Request req, Response resp) {
> > resp.set("Server", "Simple");
> > resp.setDate("Date", System.currentTimeMillis());
> > // check for compressed request
> > String contentEncoding =3D req.getValue("Content-Encoding");
> > if ((contentEncoding !=3D null)
> > && (contentEncoding.toLowerCase().indexOf("gzip") > -1)) {
> > _logger.debug("Request is zipped.");
> > req =3D new GZipRequest(req, SimpleWeb.BUFFER_SIZE);
> > }
> > // does the client accept compressed response?
> > String acceptEncoding =3D req.getValue("Accept-Encoding");
> > if ((!"GET".equals(req.getMethod())) && (acceptEncoding !=3D null)
> > && (acceptEncoding.toLowerCase().indexOf("gzip") > -1)) {
> > _logger.debug("Response will be zipped.");
> > resp =3D new GZipResponse(resp);
> > }
> > /*
> > * Hand the request over to the real server so that targeted servic=
e can
> > be
> > * executed.
> > */
> > _handler.handle(req, resp);
> > }
> > }
> >
> > --------------------
> > And the GZipRequest and GZipResponse are mainly a wrapper on a request =
where
> > stream getter methods return a GZIP stream:
> >
> >
> > public class GZipRequest implements Request { //extends FilterRequest {
> > private int _size;
> > private Request _req;
> >
> > // =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> > // Constructor
> > // =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> >
> > /**
> > * Wraps the specified request stream into a GZipStream.
> > */
> > public GZipRequest(Request request, int size) {
> > //super(request);
> > _req =3D request;
> > if (size <=3D0) {
> > _size =3D 2048;
> > } else {
> > _size =3D size;
> > }
> > }
> >
> > // =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> > // Public methods
> > // =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> >
> > /**
> > * Returns a GZIPInputStream.
> > */
> > public InputStream getInputStream() throws IOException {
> > return new GZIPInputStream(_req.getInputStream(), _size);
> > }
> >
> > /**
> > * This can be used to get the URI specified for this HTTP
> > * request. This corresponds to the /index part of a
> > * http://www.domain.com/index URL but may contain the full
> > * URL. This can be set using <code>setURI</code>.
> > *
> > * @return the URI that this HTTP request is targeting
> > */
> > public String getURI(){
> > return _req.getURI();
> > }
> >
> > /**
> > * This can be used to set the URI for this HTTP request.
> > * The <code>getURI</code> will return the String entered
> > * which can be a full HTTP URL or a relative path URL.
> > *
> > * @param uri the URI that this HTTP request is to use
> > */
> > public void setURI(String uri){
> > _req.setURI(uri);
> > }
> >
> > /**
> > * This can be used to get the HTTP method for this
> > * request. The HTTP specification RFC 2616 specifies the
> > * HTTP request methods in section 9, Method Definitions.
> > *
> > * @return the request method for this request
> > */
> > public String getMethod(){
> > return _req.getMethod();
> > }
> >
> > ...
> >
> > ------------------
> >
> > public class GZipResponse implements Response { //extends FilterRespons=
e {
> > private Response _resp;
> >
> > // =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> > // Constructors
> > // =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> >
> > /**
> > * Creates a GZipResponse for the specified Response.
> > */
> > public GZipResponse(Response response) {
> > //super(response);
> > _resp =3D response;
> > _resp.set("Content-Encoding", "gzip");
> > }
> >
> > // =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> > // Public methods
> > // =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> >
> > /**
> > * Returns a GZIPOutputStream.
> > * @see simple.http.Response#getOutputStream()
> > */
> > public OutputStream getOutputStream() throws IOException {
> > return new GZIPOutputStream(_resp.getOutputStream());
> > }
> >
> > /**
> > * Returns a GZIPOutputStream.
> > * @see simple.http.Response#getOutputStream(int)
> > */
> > public OutputStream getOutputStream(int size) throws IOException {
> > return new GZIPOutputStream(_resp.getOutputStream(size), size);
> > }
> >
> > /**
> > * Returns a GZIPOutputStream wrapped into a PrintStream.
> > * @see simple.http.Response#getPrintStream()
> > */
> > public PrintStream getPrintStream() throws IOException {
> > return getPrintStream();
> > }
> >
> > /**
> > * Returns a GZIPOutputStream wrapped into a PrintStream.
> > * @see simple.http.Response#getPrintStream(int)
> > */
> > public PrintStream getPrintStream(int size) throws IOException {
> > return new PrintStream(getOutputStream(size), false);
> > }
> >
> > /**
> > * This represents the status code of the HTTP response. The HTTP
> > * response code represents the type of message that is being sent
> > * to the client. For a description of the codes see RFC 2616
> > * section 10, Status Code Definitions.
> > *
> > * @return the status code that this HTTP response has
> > */
> > public int getCode(){
> > return _resp.getCode();
> > }
> >
> > /**
> > * This method allows the status for the response to be changed.
> > * This must be reflected the the response content given to the
> > * client. For a description of the codes see RFC 2616 section
> > * 10, Status Code Definitions.
> > *
> > * @param code the new status code for the HTTP response
> > */
> > public void setCode(int code){
> > _resp.setCode(code);
> > }
> >
> > ....
> >
> > Christophe
> > > -----Original Message-----
> > > From: sim...@li... [mailto:simpleweb=
-
> > > sup...@li...] On Behalf Of Brian Davis
> > > Sent: Tuesday, December 13, 2005 10:20 AM
> > > To: sim...@li...
> > > Subject: [Simpleweb-Support] HTTP Compression
> > >
> > > Is there any plans to support gzip or deflate.. or is it there and I
> > > am not finding it.. also.. if not why? and.. if not.. any recommends
> > > on where to add it..
> > >
> > > thanks!
> > >
> > > Brian
> > >
> > >
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> > > _______________________________________________
> > > Simpleweb-Support mailing list
> > > Sim...@li...
> > > https://lists.sourceforge.net/lists/listinfo/simpleweb-support
> >
> >
> >
> >
> >
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> >
>
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