[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] [ANN] Graphity - rapid development of Linked Data apps
Hey all, I'm pleased to announce Graphity -- a fully extensible generic Linked Data platform for building end-user Web applications. Java and PHP versions of the project can be found on http://graphity.org, the code is open-source under GPL and Apache licenses. Graphity was designed for compatibility with established standards and APIs such as Jena [JENA], JAX-RS, SPIN [SPIN], and RDF/POST [RP]. It tries to create as few new conventions as possible. Graphity does not have any object model above the RDF level and can do a full read/write data roundtrip in RDF. This eliminates data model mismatches (as in object/relational/XML/RDF) and conversions that result in development time and bugs (think ORM). More information on its generic design can be found in the W3C LEDP workshop presentation [LEDP]. I'm posting to the XSLT list because a good portion of Graphity is implemented in XSLT. I know XSLT on RDF/XML has been decried as too complex and generic RDF browsers as impossible, but Graphity uses XSLT 2 transformations which are much more powerful than the early XSLT 1 attempts and shows it can be done. XSLT is used to import data (as GRDDL pluggable into Jena) as well as to build user interfaces (RDF/XML to XHTML writers pluggable into JAX-RS). Here they are: https://github.com/Graphity/graphity-browser/tree/master/src/main/resources/org/graphity/util/locator/grddl -- GRDDL stylesheets https://github.com/Graphity/graphity-browser/tree/master/src/main/resources/org/graphity/browser/provider/xslt -- design-independent UI components https://github.com/Graphity/graphity-browser/blob/master/src/main/webapp/WEB-INF/Resource.xsl -- layout of a generic Linked Data browser 3rd party webapps can be built on Graphity Browser by simply extending JAX-RS resources and overriding the necessary methods, as well as including the XSLT stylesheets and overriding the templates -- or using a custom web application and/or XSLT layout altogether. Linked Data browser demo (which is a base webapp bundled with the platform) can be seen here (note: the server is not production-grade): http://semanticreports.com/?uri=http%3A%2F%2Fdbpedia.org%2Fresource%2FCopenhagen -- DBPedia resource (can be slow) http://semanticreports.com/?uri=https%3A%2F%2Fgdata.youtube.com%2Ffeeds%2Fapi%2Fvideos%3Fq%3Dlinked%2Bdata%26amp%3Borderby%3Dpublished%26amp%3Bstart-index%3D11%26amp%3Bmax-results%3D10%26amp%3Bv%3D2 -- Atom resource from YouTube I was hoping that you could take a look at the code and provide me with some feedback -- that would be much appreciated. Also feel free to contribute :) [JENA] http://jena.apache.org [JAX] http://jcp.org/en/jsr/detail?id=311 [SPIN] http://topbraid.org/spin/api/ [RP] http://www.lsrn.org/semweb/rdfpost.html [LEDP] http://www.w3.org/2011/09/LinkedData/ledp2011_submission_1.pdf Regards, Martynas Jusevicius https://twitter.com/graphityhq http://graphity.org http://semantic-web.dk
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