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From "Senaka Fernando" <sen...@wso2.com>
Subject Re: Caching support for large attachments
Date Sun, 16 Mar 2008 14:42:07 GMT
> Senaka Fernando wrote:
>> Hi Samisa,
>>
>> IIRC, this discussion is on handling attachments and thus, does not
>> relate
>> to caching. Though $subject says "Caching" what actually was discussed
>> was
>> a mechanism to buffer the attachment in a file, rather than in memory,
>> and
>> that buffer has nothing to do with a Caching, which is a totally
>> different
>> concept, as in [1].
>>
>
> If you look at Axis2/Java caching really means what we discussed, and
> not [1]. In other words the context is different.

Yes, and also thinking about [1], it is actually a implementor's choice
rather, just the same as session. WS Specs do not demand such native
support for either a SOAP or REST engine. Thus, IMHO, even in the long run
[1] will not be needed.

>
>> The previous mail I sent was a reply to Manjula's concern in handling a
>> scenario where the MIME boundary appears as two parts distributed among
>> two reads. As unlike the previous scenarios, the once read block will be
>> flushed to a file, instead of having it in memory. Thus, parsing may
>> have
>> to be thought of. Sorry if it confused you.
>>
>> IMHO, writing a partially parsed buffer to a file is not that efficient
>> as
>> we will have to parse it sometime later, to discover MIME Boundaries and
>> extract attachments. Thus, I still believe that realtime buffering to a
>> file while parsing is still a better choice. To implement such, we will
>> have to modify our mime_parser.c, and probably the data_handler
>> implementation.
>>
>
> That bit needs to be rationalized when implementing the caching, on top
> of current parser logic.

+1,

Regards,
Senaka

>
> Samisa...
>
>
>
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