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Re: Semantic Web using Magritte
by Jason Johnson-5
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Are your descriptions going to still be relevant for PDF in the same
way they are for a web page? Magritte descriptions usually provide a
GUI for entering or editing them, no?
If the descriptions do fit (or if they don't you could make new ones)
then I think the thing to do would be to add a renderer. Right now
there is one for Seaside and one for Morphic. So you would need one
for each format you need to output to. Perhaps there is already a
package that does something like Seaside's canvas for XML (maybe XANO
or whatever it's called?).
On Dec 5, 2007 3:33 PM, <smalltalk@...> wrote:
> Thanks for the input, I had definitely considered that. I was even
> looking at XSLT but I really like keeping everything in Smalltalk. I
> do indeed need to go many directions since there are many entry points
> and services with this application. I also have explored creating new
> canvases and doing some things with Readers/Writers like in Pier.
>
> I would do exactly what your describing, but I still am left with the
> problem of generating good output from my objects. So for example,
> sticking with music, say we have an Album object. I have all kinds of
> stuff already for Magritte in there for this object. Now I want to do
> something like in my seaside control provide an RDF button that when
> clicked, generates the RDF output. I would need to traverse the entire
> object/description graph and output the RDF with the album name,
> title, etc. and the track listing, and then artist info, etc. It
> definitely would suck without the metadata to identify which RDF URI
> corresponds with each object in the graph.
>
> Essentially, I am thinking of creating a simpler
> serializer/deserializer driven by Magritte descriptions similar to
> what I've done before in .NET and Java. I am just not sure if that is
> very Smalltalk like as I like to always think there is a better way
> than resorting to what I have done in those languages :)
>
> For instance, there is a JSON serializer in .NET where I can say
> Album.ToJSON(), or the XML serializer Album.ToXML(). It so happens
> that depending on the serializer/deserializer, it will read attributes
> I put on my class like [XmlIgnore]. That stuff is really primitive I
> think compared to what I can do in Magritte.
>
> I guess I am trying to prevent a future meltdown because as this
> application is developed, I am going to have to start going back and
> forth with lots of web services to communicate with Java and Flash in
> particular. I want to set a good example on the Smalltalk side by
> generating everything automagically.
>
>
> Quoting Philippe Marschall <philippe.marschall@...>:
>
> > Hi
> >
> > For audioscrobbler I did the opposite, from given XML to Magritte:
> > http://source.lukas-renggli.ch/audioscrobbler.html
> > The audioscrobbler xml is quite gay and I was surprised when I got it
> > working. It is also used for feed parsing of the Seaside homepage.
> >
> > Cheers
> > Philippe
> >
> > 2007/12/5, smalltalk@... <smalltalk@...>:
> >> I was wondering if anyone tried to do any kind of XML mapping using
> >> Magritte. I have the requirement to generate RDF from my business
> >> objects, so I was thinking of ways to simplify this. My idea was to
> >> add something in the Magritte descriptions for each object that
> >> pointed to the appropriate URI and schema.
> >>
> >> This may be more trouble than its worth. I suppose anyone who has done
> >> anything with generating XML from Magritte could maybe provide some
> >> insight on any hurdles they faced, design ideas, etc.
> >>
> >> I also am looking at Magritte for simplifying XML serialization in
> >> general. My problem overall is that I have to generate all these
> >> formats (XML for web service, RSS, ATOM, RDF) and I do not want to
> >> have to write a complex parser to even do this 1/2 way dynamically.
> >> Are there any other libraries out there that do this already? For
> >> instance, I did notice that there is that library (name escapes me)
> >> that lets you port your objects between Smalltalk versions by dumping
> >> to XML files, so that is somewhat close to what I need to do.
> >>
> >> I am thinking since I already have a large number of Magritte
> >> descriptions, I might as well expand upon that. This will also let me
> >> do things like change a schema dynamically and provide easy access
> >> memento objects to do things like create a preview of whatever format
> >> I am trying to produce. Thoughts?
> >>
> >>
> >>
> >> _______________________________________________
> >> SmallWiki, Magritte, Pier and Related Tools ...
> >> https://www.iam.unibe.ch/mailman/listinfo/smallwiki
> >>
> >
> > _______________________________________________
> > SmallWiki, Magritte, Pier and Related Tools ...
> > https://www.iam.unibe.ch/mailman/listinfo/smallwiki
> >
>
>
>
>
>
> _______________________________________________
> SmallWiki, Magritte, Pier and Related Tools ...
> https://www.iam.unibe.ch/mailman/listinfo/smallwiki
>
_______________________________________________
SmallWiki, Magritte, Pier and Related Tools ...
https://www.iam.unibe.ch/mailman/listinfo/smallwiki
way they are for a web page? Magritte descriptions usually provide a
GUI for entering or editing them, no?
If the descriptions do fit (or if they don't you could make new ones)
then I think the thing to do would be to add a renderer. Right now
there is one for Seaside and one for Morphic. So you would need one
for each format you need to output to. Perhaps there is already a
package that does something like Seaside's canvas for XML (maybe XANO
or whatever it's called?).
On Dec 5, 2007 3:33 PM, <smalltalk@...> wrote:
> Thanks for the input, I had definitely considered that. I was even
> looking at XSLT but I really like keeping everything in Smalltalk. I
> do indeed need to go many directions since there are many entry points
> and services with this application. I also have explored creating new
> canvases and doing some things with Readers/Writers like in Pier.
>
> I would do exactly what your describing, but I still am left with the
> problem of generating good output from my objects. So for example,
> sticking with music, say we have an Album object. I have all kinds of
> stuff already for Magritte in there for this object. Now I want to do
> something like in my seaside control provide an RDF button that when
> clicked, generates the RDF output. I would need to traverse the entire
> object/description graph and output the RDF with the album name,
> title, etc. and the track listing, and then artist info, etc. It
> definitely would suck without the metadata to identify which RDF URI
> corresponds with each object in the graph.
>
> Essentially, I am thinking of creating a simpler
> serializer/deserializer driven by Magritte descriptions similar to
> what I've done before in .NET and Java. I am just not sure if that is
> very Smalltalk like as I like to always think there is a better way
> than resorting to what I have done in those languages :)
>
> For instance, there is a JSON serializer in .NET where I can say
> Album.ToJSON(), or the XML serializer Album.ToXML(). It so happens
> that depending on the serializer/deserializer, it will read attributes
> I put on my class like [XmlIgnore]. That stuff is really primitive I
> think compared to what I can do in Magritte.
>
> I guess I am trying to prevent a future meltdown because as this
> application is developed, I am going to have to start going back and
> forth with lots of web services to communicate with Java and Flash in
> particular. I want to set a good example on the Smalltalk side by
> generating everything automagically.
>
>
> Quoting Philippe Marschall <philippe.marschall@...>:
>
> > Hi
> >
> > For audioscrobbler I did the opposite, from given XML to Magritte:
> > http://source.lukas-renggli.ch/audioscrobbler.html
> > The audioscrobbler xml is quite gay and I was surprised when I got it
> > working. It is also used for feed parsing of the Seaside homepage.
> >
> > Cheers
> > Philippe
> >
> > 2007/12/5, smalltalk@... <smalltalk@...>:
> >> I was wondering if anyone tried to do any kind of XML mapping using
> >> Magritte. I have the requirement to generate RDF from my business
> >> objects, so I was thinking of ways to simplify this. My idea was to
> >> add something in the Magritte descriptions for each object that
> >> pointed to the appropriate URI and schema.
> >>
> >> This may be more trouble than its worth. I suppose anyone who has done
> >> anything with generating XML from Magritte could maybe provide some
> >> insight on any hurdles they faced, design ideas, etc.
> >>
> >> I also am looking at Magritte for simplifying XML serialization in
> >> general. My problem overall is that I have to generate all these
> >> formats (XML for web service, RSS, ATOM, RDF) and I do not want to
> >> have to write a complex parser to even do this 1/2 way dynamically.
> >> Are there any other libraries out there that do this already? For
> >> instance, I did notice that there is that library (name escapes me)
> >> that lets you port your objects between Smalltalk versions by dumping
> >> to XML files, so that is somewhat close to what I need to do.
> >>
> >> I am thinking since I already have a large number of Magritte
> >> descriptions, I might as well expand upon that. This will also let me
> >> do things like change a schema dynamically and provide easy access
> >> memento objects to do things like create a preview of whatever format
> >> I am trying to produce. Thoughts?
> >>
> >>
> >>
> >> _______________________________________________
> >> SmallWiki, Magritte, Pier and Related Tools ...
> >> https://www.iam.unibe.ch/mailman/listinfo/smallwiki
> >>
> >
> > _______________________________________________
> > SmallWiki, Magritte, Pier and Related Tools ...
> > https://www.iam.unibe.ch/mailman/listinfo/smallwiki
> >
>
>
>
>
>
> _______________________________________________
> SmallWiki, Magritte, Pier and Related Tools ...
> https://www.iam.unibe.ch/mailman/listinfo/smallwiki
>
_______________________________________________
SmallWiki, Magritte, Pier and Related Tools ...
https://www.iam.unibe.ch/mailman/listinfo/smallwiki
« Return to Thread: Semantic Web using Magritte
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