On Thu, Oct 02, 2008 at 12:22:17PM -0400, Davanum Srinivas wrote: > Oleg, > > One problem from my personal point of view is that for JAXWS support > we need javamail :( to be compliant to the spec. > > -- dims >
Davanum, I understand your position, yet I find it regrettable that JAX-WS specific requirements dictate architectural decisions for Axiom which is meant a generic XML processing framework. I also find it regrettable that Axiom is currently unable to parse and build MIME messages without buffering the first MIME part (SOAP message) in memory. It may not be a big problem for a great deal of applications, but for some it certainly is. Oleg > On Thu, Oct 2, 2008 at 11:48 AM, Oleg Kalnichevski <[EMAIL PROTECTED]> wrote: > > On Sun, Sep 28, 2008 at 10:54:33AM -0500, Thilina Gunarathne wrote: > >> Hi Oleg,Apologies for been this late to reply... > >> > >> There is a little catch that you might need to consider.. Axis2 MIME > >> parsing > >> works similar to StAX. Axis2 MIME parser does differed parsing of the MIME > >> messages. It parses MIME parts only when needed and requested by the AXIOM > >> model. Axiom requests the contents of the attachments only when somebody > >> reads the contents of the corresponding OMText object (not when it creates > >> the object model). So altogether when using MTOM+ Axiom it's a double > >> layer differed parsing, differed parsing of XML & differed parsing of > >> Attachments. But to be honest I'm not sure whether there are any people > >> taking advantage of this.. One reason for us not use the JavaMail was it's > >> inability to do differed MIME parsing.. > >> Also Axis2 supports streaming of attachments. That means somebody can > >> directly stream the attachments stream from the input to the output. This > >> comes handy when proxying or mediating. This case might become unusable (I > >> can't really remember how it works now :(.. ) if we read and parse the > >> whole > >> MIME message.. Once again I'm not sure whether people really use it > >> (Synapse??).. > >> > >> All and all I believe the ability to differed parse MIME attachments will > >> be > >> a good feature for MIME4J too.. > >> > > > > Thilina, > > > > mime4j is perfectly capable of deferred (or on demand) parsing of MIME > > messages. One can retrieve just the first mime part and then defer the > > processing of all subsequent parts only when / if accessed. > > > > Presently the patch I submitted (WSCOMMONS-387) does not provide support > > for the deferred parsing, but it should be relatively trivial to add it. > > However, as no one showed any interest in WSCOMMONS-387 so far I am > > somewhat reluctant to put any more work into it. > > > > Oleg > > > > > >> thanks, > >> Thilina > >> > >> On Wed, Sep 17, 2008 at 1:06 PM, Oleg Kalnichevski <[EMAIL PROTECTED]> > >> wrote: > >> > >> > > >> > Thilina, > >> > > >> > Mime4j parser works similarly to SAX. It is an event based API. One can > >> > provide a custom handler implementing a particular custom processing > >> > logic in response to appearance of a certain MIME element in the data > >> > stream, such as a MIME header or a content part. > >> > > >> > Oleg > >> > > >> > > thanks, > >> > > Thilina > >> > > > >> > > > >> > > > Oleg Kalnichevski wrote: > >> > > > > >> > > >> Folks, > >> > > >> > >> > > >> Would there be any interest in a SwA implementation based on Apache > >> > > >> mime4j [1]? Mime4j can handle very complex MIME messages, is > >> > reasonably > >> > > >> fast, and, most importantly, can stream complex MIME messages in and > >> > out > >> > > >> with a predictable memory footprint (using just a small internal > >> > buffer > >> > > >> of a constant length) > >> > > >> I _personally_ find Java Activation API pretty suboptimal and would > >> > like > >> > > >> Axiom to provide an alternative API based on a fully streamable > >> > > >> model. > >> > > >> Let me know what you think. > >> > > >> > >> > > >> Oleg > >> > > >> > >> > > >> [1] http://james.apache.org/mime4j/index.html > >> > > >> > >> > > >> > >> > > >> > >> > > > -- > >> > > > Sanjiva Weerawarana, Ph.D. > >> > > > Founder & Director; Lanka Software Foundation; > >> > http://www.opensource.lk/ > >> > > > Founder, Chairman & CEO; WSO2, Inc.; http://www.wso2.com/ > >> > > > Member; Apache Software Foundation; http://www.apache.org/ > >> > > > Visiting Lecturer; University of Moratuwa; http://www.cse.mrt.ac.lk/ > >> > > > > >> > > > Blog: http://sanjiva.weerawarana.org/ > >> > > > > >> > > > >> > > > >> > > > >> > > >> > > >> > >> > >> -- > >> Thilina Gunarathne - http://thilinag.blogspot.com > > > > > > -- > Davanum Srinivas :: http://davanum.wordpress.com
