Hi Michael,
I read the functional details on [1] [2] and went through the
last year student's discussion [3] about the "Asynchronous LSParser and
parseWithContext" project. As I understood by referring these materials,
still there are two things to be completed.
1. Implement asynchronous version LSParser (where boolean async
is "true" or asynchronous mode enabled)
2. Implement the parseWithContext functionality in DOMParserImpl
According the W3C recommendation LSParser objects (DOMParserImpl in this
case) are expected to implement EventTarget interface [1] to make event
listeners registered in asynchronous mode of LSparser. As I understood,
implementation of the Asynchronous version will also influence the return
values of the "parse" and "parseURI" methods, since the return values of
them as the LSParser is in Asynchronous mode should be "null". This is
because of the Document object is not still be constructed when this method
returns.
Implementing parseWithContext function will give support to parse a fragment
of an XML document through LSInput into an existing document in a specified
position according to the arguments passed with the method itself which
needs more attention (as I guess) because the inserting source document is a
fragment of an XML document [2] (ie anything except a complete XML
document).
At the moment I am studying about these two strategies in an implementation
perspective and studying the LSParser related classes such as DOMParserImpl,
AbstractDOMParser, etc as you suggested. I am also trying to cover the area
for EventTarget, EventListeners stuff (which I think may important for
future work) to create a proper background for the project. So can you tell
me where I can find materials to study EventListeners and other critical
areas needed?
This is the brief idea I have got at the moment. So I hope your advice to
guide me to go somewhat deeper from where I am at the moment.
[1]
http://www.w3.org/TR/2004/REC-DOM-Level-3-LS-20040407/load-save.html#LS-LSParser
[2]
http://www.w3.org/TR/2004/REC-DOM-Level-3-LS-20040407/load-save.html#LS-LSParser-parseWithContext
[3] http://markmail.org/thread/ool7dyyzffor6o7b
Thanks.
On Tue, Feb 8, 2011 at 12:04 AM, Michael Glavassevich
<[email protected]>wrote:
> Hi Thiwanka,
>
> You'll find the functional details [1][2] in the DOM Level 3 Load and Save
> specification. From an implementation perspective I would suggest
> familiarizing yourself with the classes in Xerces which compose the LSParser
> (e.g. XMLDocumentFragmentScannerImpl, XMLDocumentScannerImpl,
> AbstractDOMParser,
> DOMParserImpl, etc...).
>
> There's a discussion [3] from last year with a student who was considering
> doing this project that you might also find informative.
>
> Thanks.
>
> [1]
> http://www.w3.org/TR/2004/REC-DOM-Level-3-LS-20040407/load-save.html#LS-LSParser
> [2]
> http://www.w3.org/TR/2004/REC-DOM-Level-3-LS-20040407/load-save.html#LS-LSParser-parseWithContext
> [3] http://markmail.org/thread/ool7dyyzffor6o7b
>
>
> Michael Glavassevich
> XML Parser Development
> IBM Toronto Lab
> E-mail: [email protected]
> E-mail: [email protected]
>
> Thiwanka Somasiri <[email protected]> wrote on 02/06/2011 11:18:46 PM:
>
> > Hi Michael,
>
> > First thank you for your reply. Now I am getting
> > familiar to Apache Xerces little by little according to your steps
> > in the first reply. Can you guide me to the specific areas that I
> > should refer to create a proper background to the "Asynchronous
> > LSParser and parseWithContext" project.
> >
> > Thanks.
>
> > On Sun, Feb 6, 2011 at 10:35 PM, Michael Glavassevich <
> [email protected]
> > > wrote:
> > Hi Thiwanka,
> >
> > Thiwanka Somasiri <[email protected]> wrote on 02/05/2011 11:53:36
> PM:
> >
> > > Hi Michael,
> >
> > > I started to follow the steps you have asked me to study.
> > > Also I noticed the GSoC project ideas list in 2009 and some of them
> > > were done in 2009 and 2010. As I saw the "Asynchronous LSParser and
> > > parseWithContext" project is not done as a GSoC project yet. Is this
> > > project available now? If so, can I attempt to do this project forGSoC
> 2011?
>
> > Yes, this project would still be available for 2011. We may also
> > brainstorm some new project ideas and post those as well.
> >
> > It's still fairly early. GSoC 2011 was only announced a few weeks
> > ago. Apache is just starting [1] to work out the logistics for this
> > year. We may use JIRA again for posting ideas, though the admins may
> > agree that we should be using something else (e.g. going back to Wikis
> again).
> >
> > > Thanks.
> >
> > Thanks.
> >
> > [1] http://markmail.org/message/hhvszpjotnkmjxcv
> >
> >
> > Michael Glavassevich
> > XML Parser Development
> > IBM Toronto Lab
> > E-mail: [email protected]
> > E-mail: [email protected]
> >
> >
> >
> > --
> >
> > Regards
> >
> > A.S.Thiwanka Somasiri
> >
> > Skype : executionerwild
> > MSN : [email protected]
>
>
--
Regards
A.S.Thiwanka Somasiri
Skype : executionerwild
MSN : [email protected]
<[email protected]>
