users@jersey.java.net

Re: [Jersey] A Jersey Client doing HTTP Cache

From: Imran M Yousuf <imyousuf_at_smartitengineering.com>
Date: Mon, 6 Sep 2010 22:14:47 +0600

Hi Paul,

On Mon, Sep 6, 2010 at 3:49 PM, Paul Sandoz <Paul.Sandoz_at_oracle.com> wrote:
> Hi Imran,
>
> This is great!
>

Thanks.

> I am a bit busy with JavaOne tasks to give this a full test drive at the
> moment.
>

I will patiently wait :).

> But i did take a quick look at the source. I was wondering why it was not
> implemented as a ClientFilter but I see the caching API depends on the
> Apache HTTP client.

Yes, one approach would have been to implement a client filter which
would make it to work on any Jersey Client; in that case it would
require a rewrite of what HTTPCache4J has written :). Since I worked
with its original developer and I know its being used in production, I
have the opinion that its better that I do not rewrite anything and
thus I used it directly.

>
> Perhaps we could extend from the existing Jersey Apache HTTP client support?
> that way it should be familiar to existing developers and the same
> properties will work. If you need changes to Jersey code to enable that
> please don't hesitate to log issues and send patches.
>

I first took the path of extending directly and then realized that to
have all the code from ApacheHttpClientHandler (that is supporting its
properties), I needed to write my own response resolver.
http://httpcache4j.codehaus.org/create_response_resolver.html
And might turn out creating a mess :(.
In addition for authentication Erlend (developer and maintainer of
HTTPCache4J) has done some neat work which I wanted to take advantage
of, thus the rewrite. If the current version works fairly I will try
to incorporate all rest of the features of Apache HTTP Jersey Client.
I will need some guidance in terms of how to extend fruitfully. It
would be extremely helpful for usage if we can support the same set of
properties.

Thank you, waiting for some guidance.

Regards,

Imran

> Paul.
>
>
> On Sep 5, 2010, at 4:28 PM, Imran M Yousuf wrote:
>
>> Hi,
>>
>> I have been wanting a Jersey Client that handles HTTP Caching on the
>> client by default without me as a developer having to worry about
>> anything. And I am happy to say that we do have once such client which
>> we hope does serve the purpose.
>> http://code.google.com/p/smart-util/wiki/JerseyCacheClient
>> Details about the source code is at -
>> http://code.google.com/p/smart-util/wiki/SourceCode
>>
>> I would be extremely grateful if you would kindly help me test it out
>> by replacing current client of your project with this client. I would
>> welcome any new feature requests, not to mention contribution, and we
>> want to make the client production ready so bugs would be attended
>> with urgency. Any queries are welcome.
>>
>> Thank you in advance.
>>
>> --
>> Imran M Yousuf
>> Blog: http://imyousuf-tech.blogs.smartitengineering.com/
>> Mobile: +880-1711402557
>>
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>
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-- 
Imran M Yousuf
Entrepreneur & CEO
Smart IT Engineering Ltd.
25/5B, Block F, Haji Chinu Miah Road Bylane
Joint Quarter, Mohammadpur
Dhaka - 1207, Bangladesh
Email: imran_at_smartitengineering.com
Blog: http://imyousuf-tech.blogs.smartitengineering.com/
Mobile: +880-1711402557