9 Replies Latest reply on Mar 3, 2006 12:27 AM by starksm64

HttpInvokers & Data Compression using GZIP streams

jburugupalli Apr 2, 2004 5:45 AM

HI Jboss ,

I am using HttpInvoker and its working fine. And recently i read about the CompressionSocketFactory used in case of JRMPInvoker.

But i have an idea to use the GZIPOutputStream and GZipInputStream in the httpInvokers.Please tell me if the idea itself is wrong or right or if it has some draw backs which i dont know yet.

I changed the following and i am adding only the interested lines of code and not the full class

org.jboss.invocation.http.servlet.InvokerServlet.java

ServletInputStream sis = request.getInputStream();
GZIPInputStream tGZIPIn = new GZIPInputStream(sis);
ObjectInputStream ois = new ObjectInputStream(tGZIPIn);

ServletOutputStream sos = response.getOutputStream();
GZIPOutputStream tGZIPOut = new GZIPOutputStream(sos);
ObjectOutputStream oos = new ObjectOutputStream(tGZIPOut);

and in the client side i changed the Util.java in the package
org.jboss.invocation.http.interfaces.Util.java
OutputStream os = conn.getOutputStream();
GZIPOutputStream tGZIPOut = new GZIPOutputStream(os);
ObjectOutputStream oos = new ObjectOutputStream(tGZIPOut);

InputStream is = conn.getInputStream();
GZIPInputStream tGZIPIn = new GZIPInputStream(is);
ObjectInputStream ois = new ObjectInputStream(tGZIPIn);
MarshalledValue mv = (MarshalledValue) ois.readObject();

so packed it to the jbossall-client.jar and used it in the client
so it seems that everything is working fine. But i dont know at all if it is the right thing to do.

HI scott if u r there and viewed this topic please send ur comments ...as u r the author if this..of course other guys can also comment on this as well

regards
Jani

1. Re: HttpInvokers & Data Compression using GZIP streams

boa_ig Feb 19, 2006 11:28 PM (in response to jburugupalli)

HI Jani

I now have problem with CompressionSocketFactory HttpInvoker.
Prompt, how you managed her(it) to realize?

Oleg.
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2. Re: HttpInvokers & Data Compression using GZIP streams

mich0 Feb 28, 2006 12:01 AM (in response to jburugupalli)

Hi!

I also use CompressionSocketFactory in case of JRMPInvoker.
How can I use compression in HttpInvoker without changes in jboss kernel?
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3. Re: HttpInvokers & Data Compression using GZIP streams

boa_ig Feb 28, 2006 6:43 AM (in response to jburugupalli)

Prompt where to search.

It can be made whether or not?

Please Helppppppppppppp
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4. Re: HttpInvokers & Data Compression using GZIP streams

boa_ig Feb 28, 2006 6:53 AM (in response to jburugupalli)

I use example, org.jboss.test.hello testsuite package, is an example of using the HttpInvoker to configure a stateless session bean to use the RMI/HTTP protocol. How to me to add compression for RMI?

sory my bad English
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5. Re: HttpInvokers & Data Compression using GZIP streams

starksm64 Feb 28, 2006 11:05 AM (in response to jburugupalli)

Look into the compression option on the tomcat http connector.
http://tomcat.apache.org/tomcat-5.5-doc/config/http.html
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6. Re: HttpInvokers & Data Compression using GZIP streams

boa_ig Mar 1, 2006 8:07 AM (in response to jburugupalli)

<! - A HTTP/1.1 Connector on port 8080 - >
< Connector port = "8080" address = " $ {jboss.bind.address} "
compression = "force"
compressableMimeType = " application/x-www-form-urlencoded, application/x-java-serialized-object "
maxThreads = "250" strategy = "ms" maxHttpHeaderSize = "8192"
emptySessionPath = "true"
enableLookups = "false" redirectPort = "8443" acceptCount = "100"
connectionTimeout = "20000" disableUploadTimeout = "true" / >
..........................................................................
If to do(make) standart Tomcat, it is necessary Accept-Encoding "," x-gzip, x-deflate, gzip, deflate

I have added in console\remote\Util.java, mq\il\http\HTTPClient.java, http\interface\Utils.java
conn.setRequestProperty ("Accept-Encoding", " x-gzip, x-deflate, gzip, deflate ");

Does not work
The server compresses the data
The client does not understand stream
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7. Re: HttpInvokers & Data Compression using GZIP streams

starksm64 Mar 1, 2006 11:42 AM (in response to jburugupalli)

You need to conditionally wrap the input stream:

 URL url = new URL("http://localhost:8080/invoker/JNDIFactory");
 URLConnection conn = url.openConnection();
 conn.setRequestProperty("Accept-Encoding", "x-gzip, x-deflate, gzip, deflate, identity");
 InputStream is = conn.getInputStream();
 Map<String, List<String>> headers = conn.getHeaderFields();
 System.out.println(headers);
 System.out.println(is);
 List<String> encoding = headers.get("Content-Encoding");
 boolean gzip = encoding.contains("gzip");
 if( gzip )
 is = new GZIPInputStream(is);
 ObjectInputStream ois = new ObjectInputStream(is);
 Object proxy = ois.readObject();
 System.out.println(proxy);
 is.close();
 ois.close();

...

{X-Powered-By=[Servlet 2.4; JBoss-4.0.4.CR2 (build: CVSTag=JBoss_4_0_4_CR2 date=200602271624)/Tomcat-5.5], Content-Encoding=[gzip], Date=[Wed, 01 Mar 2006 16:36:59 GMT], null=[HTTP/1.1 200 OK], Server=[Apache-Coyote/1.1], Content-Type=[application/x-java-serialized-object; class=org.jboss.invocation.MarshalledValue], Transfer-Encoding=[chunked], Vary=[Accept-Encoding]}
sun.net.www.protocol.http.HttpURLConnection$HttpInputStream@b1c5fa
org.jboss.invocation.MarshalledValue@90426439

8. Re: HttpInvokers & Data Compression using GZIP streams

boa_ig Mar 2, 2006 7:15 AM (in response to jburugupalli)

Thanks,
Compression is work (in testing)
JBoss plans this function to add in Released?

sory for my bad English

Oleg.
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9. Re: HttpInvokers & Data Compression using GZIP streams

starksm64 Mar 3, 2006 12:27 AM (in response to jburugupalli)

Yes,
http://jira.jboss.com/jira/browse/JBAS-2882
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