+1 regards,
Karl On Mon, Nov 23, 2009 at 9:35 PM, Craig L Russell <craig.russ...@sun.com> wrote: > +1 > > Sounds like a very interesting project. > > Craig > > On Nov 23, 2009, at 10:32 AM, Reto Bachmann-Gmür wrote: > >> Please vote on accepting Apache Clerezza for incubation at the Apache >> Incubator. The full proposal is available at the end of this message and >> as a wiki page at http://wiki.apache.org/incubator/ClerezzaProposal >> <http://wiki.apache.org/incubator/AceProposal>. We ask the Incubator PMC >> to sponsor it, with Bertrand as the Champion, and Gianugo, Niclas, Ross, >> Karl and Reinhard volunteering to be Mentors. >> >> Please cast your votes: >> >> [ ] +1, bring Clerezza into Incubator >> [ ] +0, I don't care either way, >> [ ] -1, do not bring Clerezza into Incubator, because... >> >> The vote is open for the next 72 hours and only votes from the Incubator >> PMC are binding. >> >> - - - - - - - - - - >> >> Abstract >> >> Clerezza is an OSGi-based modular application and set of components >> (bundles) for building RESTFul Semantic Web applications and services. >> >> Proposal >> >> Clerezza can be used as a platform providing all the compile and runtime >> requirement for building semantic applications, or used as individual >> bundles within an OSGi framework, e.g. Apache Sling, Apache ServiceMix, >> or the Eclipse platform. >> >> Clerezza provides: >> >> * An API modeling the W3C RDF standard without any vendor specific >> additions. >> * Adapter for various triple stores including Sesame, Jena TDB, and >> Mulgara. >> * Front-End adaptors, currently to run applications written against >> the Jena API. Support for RDF2Go is planned. >> * A JAX-RS implementation designed to work in an OSGi environment >> and allowing to provide Root-Resources as OSGi services. >> * Web access to RDF graphs, including a SPARQL-Endpoint. >> * Extensions to JAX-RS allowing to bind Root-Resource classes to >> specific RDF-Types rather than to URI-Paths. >> * Templating mechanism (Renderlets) allowing to render RDF resources >> returned by JAX-RS resource methods to various formats >> * >> >> Support for Scala for writing modules, ScalaServerPages to easily >> write renderlets, DSL for accessing graphs. >> * Authentication and authorization based on JAAS and OSGi >> Conditional Permission Admin >> * Support for user bundles: Users can have a permission to upload >> their own sandboxed bundles. The URI space these bundles are allowed to >> register their JAX-RS resources can be limited with a prefix. >> * Scripting: Scripting based on javax.script (currently support for >> JRuby and Scala) >> * Documentation: Bundles can provide their documentation in RDF. >> These are used for online documentation as well as for building Maven >> sites (with a Maven reporting plugin) >> >> The RDF abstraction layer can be used independently of other aspects of >> Clerezza. It allows applications to be written regardless the used >> backend. In its purpose, it is similar to RDF2Go, but provides a >> significantly more modular interface allowing e.g. to independently >> switch the storage, querying, or serialization layer. Furthermore, it >> doesn't introduce concepts alien to the RDF model such as blank node >> labels, but is in its core strictly limited to RDF semantics. >> >> The JAX-RS implementation can also be used independently of any other >> components. It allows OSGi services to provide a RESTful interface to >> their methods. By being based on wymiwyg WRHAPI, it can run both on the >> default OSGi Web Service as well as on a jetty instance listening on a >> different port. >> >> Background >> >> The current web trends focusing on information sharing, interoperability >> and collaboration. Therefore the behaviour of the end-user has changed >> over the last years: end-users not only consuming information they also >> producing content anytime anywhere - in contrast to non-interactive >> websites where users are limited to the passive viewing of information >> that is provided to them. Since the end-users are sensitized to the >> possibilities of the web the web application requirements increases. >> Examples of such applications are social-networking sites, wikis, blogs >> and mashups. >> >> The REST paradigm and Semantic Web technologies support these trends and >> form the basis for the upcoming Web of Data (a.k.a. linked data, Web >> 3.0). They change the paradigms for developing complex Web applications. >> Clerezza allows to develop applications that integrate perfectly in the >> Semantic Web providing all accessible resources in machine >> understandable formats without imposing additional burdens on the >> developer. Additionally, thanks to the flexibility of the RDF model used >> as back-end, some tedious database related tasks required for >> traditional Web application development are no longer needed. >> >> Rationale >> >> Most Web application framework are not designed to leverage the full >> power of HTTP but often try to reproduce non Web design patterns for the >> Web environment. In general, application frameworks are oriented towards >> relational or hierarchical data structures. While attempts to overcome >> this such as Drupal have become very popular, they do not at their core >> base on the stack of Semantic Web standards. Clerezza will prove that >> the flexibility of the RDF doesn't result in increased complexity, but >> on the contrary allows for fast prototyping and development. >> >> Initial Goals >> >> The initial goals for Clerezza are: >> >> * Donate the existing codebase and import it. >> * Setup the incubation infrastructure (svn repository, build system, >> website), so we can run continuous builds with automated tests and >> publish all available documentation. >> * Get people involved in advancing the code base in different >> directions, integrating it with other projects at Apache. >> * Prepare for an initial release that demonstrates the systems core >> capabilities. >> >> Current Status >> >> The current codebase is developed and tested using Apache Felix. It has >> been developed intensively and reviewed at trialox since August 2008 >> using Scrum, with a development process emphasizing individual >> accountability and reviews. We have internally demonstrated that we can >> release codes as scheduled. Platform core functionalities are available, >> however the need for new features may arise, performance and robustness >> could be improved. Incomplete documentation for the project is available >> with the individual artifacts, both in the generated maven sites as in a >> version available exposed by Clerezza at runtime. We also have a wiki at >> http://wiki.trialox.org with some information mainly on the development >> process. We also use mailing lists for communication among developers >> and users. >> >> Meritocracy >> >> The core developers understand what it means to have a process based on >> meritocracy. We will provide continuous efforts to build an environment >> that supports this, encouraging community members to contribute. >> >> Community >> >> Trialox has been developing the current codebase since August 2008. >> Trialox was founded in partnership with the University of Zurich and >> could benefit from previous research work at the Department of >> Informatics. Part of the team from the beginning was Reto Bachmann Gmür >> who has been developing open source Semantic Web applications for many >> years, including working with the Jena team at HP Labs. >> >> Trialox has contributed to the JAX-RS specification. Some of the code >> written by trialox is used by Open Source projects such Paxle and Gradino. >> >> Clerreza is used by globally active non-profit organisations such as the >> WWF. These organisations have strong developer networks including >> motivated volunteers, which will contribute to Clerezza. >> >> Core Developers >> >> People from Trialox, the University of Zurich, as well as partner >> companies of Trialox have contributed to the project. Currently, the >> following persons are core developers of Clerezza: >> >> * Manuel Innerhofer, Developer at Trialox since November 2008. >> * Hasan Hasan, Developer and Senior Researcher at University of >> Zurich since 2006, developing Clerezza since August 2008. His current >> research interests cover P2P networking, Service Level management, and >> Internet security. >> * Tsuyoshi Ito, Developer and Scrum Master at Trialox, developing >> Clerezza since August 2008. He has researched at the University of >> Zurich since 2005. His research interest was computer-supported Learning >> (Educational Engineering) >> * Reto Bachmann-Gmür, Developer and Architect at Trialox, developing >> Clerezza since August 2008. >> >> Alignment >> >> We provide a launcher which runs Clerezza's bundles within Apache Felix. >> We also provide feedback about the usage of Apache Felix and its >> components including the framework security via the mailing list. For >> building Clerezza's bundles we use Apache Maven and various plugins. We >> also have developed a plugin to help managing projects which contain >> ontologies, so that Java classes representing those ontologies can be >> pre-compiled. Other projects which based on Web services and/or RDF can >> benefit from Clerezza or its specific bundles. We are open to >> collaborate with other Apache projects which can benefit from >> functionality provided by Clerezza. Clerezza has the advantage of being >> very modular and independent of application frameworks, thus can be >> easily integrated with other Apache projects. UIMA and Tika come to >> mind, as they would help extract semantic information from various data >> types and formats. An alignment to the JAX-RS implementation in Apache >> CXF could not only help removing the dependencies to the CDDL-licensed >> code taken from Jersey but also help providing a fully framework >> independent implementation with a larger group of developers and thus >> higher quality. >> >> Known Risks >> >> The current team of Clerezza core developers is small, but being an >> innovative project in the semantic "space", we are confident that >> Clerezza can attract new developers. >> >> Clerezza has been started as an Open Source project providing mercurial >> repository for public access to source codes and also a publicly >> accessible JIRA instance for issues tracking. Clerezza is licensed since >> project begin under Apache License version 2.0. Some of the initial >> committers already have strong experiences with Open Source software >> development. Others, while not being totally inexperience, are willing >> to learn. >> >> The risk that Clerezza will be an orphaned product is considered small. >> Three main factors will avoid this to happen: >> >> * Trialox and its founder Getunik have a vital interest in continuos >> development in this open source foundation >> * Clerezza is used as foundation for research as well a student >> projects at the University of Zurich >> * There is a strong commitment by Reto Bachmann-Gmür to maintain >> Clerezza >> * WWF expressed their support to deploy Clerezza >> >> Documentation >> >> A small set of further documentation is available under the following >> links: >> >> * >> >> http://trialox.org/projects/org.clerezza.rdf.core/documentation/overview.xhtml >> * >> >> http://trialox.org/projects/org.clerezza.triaxrs.parent/org.clerezza.triaxrs/documentation/ >> >> >> Initial Source >> >> Clerezza has been in development since mid 2008. Public access to the >> source is provided through http://scm.trialox.org/. >> >> Source and Intellectual Property Submission Plan >> >> The current codebase is owned by trialox, and will be donated together >> with its documentation. We will get the paperwork out of the way as soon >> as possible. >> >> External Dependencies >> >> There are quite a few open source libraries already used. They have >> Apache compatible licenses, with one issue to solve around Jersey which >> is CDDL. >> >> The libraries, their sources and licenses are listed here: >> >> Apache Felix, ASL: >> >> * Framework >> * Framework Security >> * Configuration Admin >> * maven-scr-plugin >> * maven-bundle-plugin >> >> OSGi Alliance, ASL: >> >> * Core >> * Compendium >> >> Apache Maven, ASL: >> >> * apache-maven >> >> Eclipse, ASL: >> >> * Jetty >> >> OPS4J, ASL: >> >> * Pax Exam >> * Pax Logging >> * Pax protocol mvn-uri >> >> WYMIWYG, ASL: >> >> * wrhapi >> * wymiwyg-commons >> >> jQuery, MIT license: >> >> * jquery >> >> Hewlett-Packard Development Company, BSD License: >> >> * Jena (for the optional jena forntend adaptor, as well as for jena >> based serializer/parser) >> * Jena TDB (for the optional tdb backend adaptor) >> >> OpenRDF.org, BSD license (for the optional sesame backend adaptor): >> >> * Sesame >> >> Mulgara.org, Open Software License ("OSL") v. 3.0 (for the optional >> mulgara backend adaptor): >> >> * mulgara >> >> XSite (http://xsite.codehaus.org/), BSD license: >> >> * xsite-maven-plugin >> >> Jersey (https://jersey.dev.java.net/), CDDL license >> >> The current code bases on code licensed under the CDDL, according to >> http://apache.org/legal/resolved.html we understand we have to get rid >> of these before making a release, or redistribute in binary form only. >> The following files are affected. >> >> * QualityFactor.java >> * HttpDateFormat.java >> * HttpHeaderReaderImpl.java >> * UriPattern.java >> * UriComponent.java >> * HttpHeaderListAdapter.java >> * MultivaluedMapImpl.java >> * HttpHeaderReader.java >> * ByteArrayProvider.java >> * SourceProvider.java >> * AbstractMessageReaderWriterProvider.java >> * StreamingOutputProvider.java >> * FormMultivaluedMapProvider.java >> * FileProvider.java >> * ReaderProvider.java >> * InputStreamProvider.java >> * MediaTypeProvider.java >> * EntityTagProvider.java >> * CacheControlProvider.java >> * NewCookieProvider.java >> * CookieProvider.java >> >> Required Resources >> >> Mailing lists: >> >> * clerezza-dev >> * clerezza-commits >> * clerezza-user (only after leaving the incubator) >> >> Subversion: >> >> * https://svn.apache.org/repos/asf/incubator/clerezza >> >> Issue Tracking: >> >> * JIRA: Apache Clerezza (Clerezza) >> >> Initial Committers >> >> These committers have either worked on the initial codebase (Reto, >> Immanuel, Tsuy, Hasan) or expressed an interest in extending the project: >> >> * Reto Bachmann-Gmür (trialox) >> * Manuel Innerhofen (trialox) >> * Tsuyoshi Ito (trialox) >> * Hasan Hasan (University of Zurich) >> * Bertrand Delacretaz (ASF member, Day Software) >> * Michael Marth (Day Software) >> * Tommaso Teofili (Apache UIMA committer) >> >> Affiliations >> >> Manuel Innerhofen, Tsuyoshi Ito and Reto Bachmann-Gmür work at trialox >> and might get paid to work on Clerezza. >> >> Hasan Hasan from University of Zurich is paid to work in a project that >> is based on Clerezza. >> >> Michael Marth and Bertrand Delacretaz work for Day Software. >> >> Sponsors >> >> We have approached both the champion and an initial list of mentors that >> have agreed to mentor this project. >> >> Champion: >> >> * Bertrand Delacretaz >> >> Mentors: >> >> * Gianugo Rabellino >> * Niclas Hedhman >> * Ross Gardler >> * Karl Pauls >> * Reinhard Pötz >> >> Sponsor: >> >> * Apache Incubator >> >> -- >> Reto Bachmann-Gmür >> trialox.org >> Tel: +41445005015 >> >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: general-unsubscr...@incubator.apache.org >> For additional commands, e-mail: general-h...@incubator.apache.org >> > > Craig L Russell > Architect, Sun Java Enterprise System http://db.apache.org/jdo > 408 276-5638 mailto:craig.russ...@sun.com > P.S. A good JDO? O, Gasp! > > -- Karl Pauls karlpa...@gmail.com --------------------------------------------------------------------- To unsubscribe, e-mail: general-unsubscr...@incubator.apache.org For additional commands, e-mail: general-h...@incubator.apache.org
