Because we've switched to svn :)

http://svn.apache.org/repos/asf/webservices/axis/

-- dims

On 9/21/05, Brian Husted (JIRA) <[email protected]> wrote:
>     [ 
> http://issues.apache.org/jira/browse/AXIS-2221?page=comments#action_12330122 ]
>
> Brian Husted commented on AXIS-2221:
> ------------------------------------
>
> I did an update from CVS but I do NOT see any of the changes, and I do NOT 
> see the new classes. DimeAttachmentStreams.java, 
> IncomingAttachmentStreams.java, and MultipartAttachmentStreams.java are NEW 
> classes.
>
> Please advise.
>
> Thanks,
> Brian
>
> > Attachment Streaming directly from HTTP Request
> > -----------------------------------------------
> >
> >          Key: AXIS-2221
> >          URL: http://issues.apache.org/jira/browse/AXIS-2221
> >      Project: Apache Axis
> >         Type: Improvement
> >   Components: SAAJ
> >     Versions: current (nightly)
> >  Environment: Java/J2EE
> >     Reporter: Brian Husted
> >  Attachments: Attachments.java.diff, Attachments.java.diff, 
> > AttachmentsImpl.java, AttachmentsImpl.java.diff, 
> > Axis_Java_SoapStreamsIterator_Design.doc, DimeAttachmentStreams.java, 
> > IncomingAttachmentStreams.java, MultipartAttachmentStreams.java, 
> > resource.properties.diff
> >
> > The uploading of large attachments is a usual occurrence in production 
> > systems using Apache Axis (Java).  Unfortunately, such an action has shown 
> > to degrade the performance when high volumes of attachments or large 
> > attachments are submitted.  In order to realize optimal peformance for 
> > receiveing SOAP attachments, this document proposes a new implementation of 
> > handling attachments in Axis (Java).  The changes proposed in this document 
> > PRESERVES backwards compatibility and allows the developer to decide how 
> > they would like to retreive the attachments.
> > Currently, depending on the size of the attachment, Axis reads the entire 
> > HTTP stream and caches all attachments in memory or onto disk.  The caching 
> > permits all of the attachments to be fully available to the business 
> > software by the time the request is passed to them for processing.  The 
> > drawback to this approach is that it forces Axis to either allocate 
> > addition memory buffers or to engage in expensive file IO transactions in 
> > order to store the data from the HTTP stream.  The extraction of the 
> > attachment data from the HTTP stream can be delegated to business tier 
> > which may be using Fiber channel SAN or databases to store the attachment 
> > data.  This option will allow the business delegate to decide how to 
> > process the data and may do so without the necessity of caching the data to 
> > local disk.
> > The proposal is to add a method to the Attachments interface allowing 
> > access to the underlying HTTP stream so that attachments can be streamed to 
> > the business objects instead of providing them with cached versions.  This 
> > change will also require edits to the AttachmentImpl class and the addition 
> > of several new classes that will become the interfacing classes to the 
> > users of this new feature.
>
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--
Davanum Srinivas : http://wso2.com/ - Oxygenating The Web Service Platform

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