On Mon, 2013-01-28 at 16:24 +0100, Zanelli Franco wrote:
> Il 28/01/2013 16:07, Oleg Kalnichevski ha scritto:
>
>
> On Mon, 2013-01-28 at 12:34 +0100, Zanelli Franco wrote:
> > hi to all,
> > my device for each http request, returns a response that provides
> more bytes than specified with Content-Length header. I can know the amount
> of additional bytes, but I don't know how to tell to httpclient.
> > Can you please help me?
> > Should I change the content length strategy implementing a new
> ContentLengthStratecy class? is it possible?
> >
> > thank you
> > greetings
> >
> >
>
>
> I would very strongly to recommend you to not misuse HTTP protocol and
> do not create HTTP services that grossly violate the specification.
> Please consider making your code generate properly delineated message
> and pass whatever additional custom information your particular
> application requires in a custom header such as 'X-My-Content-Length: 20
> bytes shorter or whatever'.
>
> Oleg
>
> PS: yes, it is definitely possible to plug-in a custom
> ContentLengthStrategy implementation. It is somewhat easier with 4.3
> APIs and slightly more difficult with 4.2 APIs.
>
>
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>
>
>
> Thanks for your fast reply.
> Honestly I didn't understand how to force httpclient to consider my custom
> content length and not the one specified in device response.
> By the way, can you suggest me where can i find a sample code to change
> ContentLengthStrategy or resolve my issue, please?
>
> Thank you very much
>
So, you are saying you are not in control of how the device generates
response messages? If that is the case, this is how you can work it
around
---
PoolingClientConnectionManager cm = new PoolingClientConnectionManager()
{
@Override
protected ClientConnectionOperator
createConnectionOperator(SchemeRegistry schreg) {
return new DefaultClientConnectionOperator(schreg) {
@Override
public OperatedClientConnection createConnection() {
return new DefaultClientConnection() {
@Override
protected EntityDeserializer
createEntityDeserializer() {
return new EntityDeserializer(new
LaxContentLengthStrategy());
}
};
}
};
}
};
DefaultHttpClient httpclient = new DefaultHttpClient(cm);
HttpGet httpget = new HttpGet("http://www.google.com/";);
HttpResponse response = httpclient.execute(httpget);
EntityUtils.consume(response.getEntity());
---
It is kind of ugly. It will get less cumbersome with 4.3.
Oleg
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