structWSF Code Repository
structWSF is a platform-independent Web services framework for accessing and exposing structured RDF data. Its central organizing perspective is that of the dataset. These datasets contain instance records, with the structural relationships amongst the data and their attributes and concepts defined via ontologies (schema with accompanying vocabularies).
The structWSF middleware framework is fully RESTful in design and is based on HTTP and Web protocols and open standards. The initial structWSF framework comes packaged with a baseline set of about a dozen Web services in CRUD, browse, search and export and import. All Web services are exposed via APIs and SPARQL endpoints. Each request to an individual Web service returns an HTTP status and optionally a document of resultsets. Each results document can be serialized in many ways, and may be expressed as either RDF or pure XML.
In initial release, structWSF has direct interfaces to the Virtuoso RDF triple store (via ODBC, and later HTTP) and the Solr faceted, full-text search engine(via HTTP). However, structWSF has been designed to be fully platform-independent. Support for additional datastores and engines are planned. The design also allows other specialized systems to be included, such as analysis or advanced inference engines.
The framework is open source (Apache 2 license) and designed for extensibility. structWSF and its extensions and enhancements are documented on the OpenStructs Web site, with code distributed from here.
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