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See:
Description
Interface Summary | |
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DereferencingListener | Interface of a Listener which handles the DereferencingResults. |
Class Summary | |
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CacheController | Implements caching of data retrieved from HTTP URLs using a Sesame repository Uses HTTP in RDF namespace, but currently does not follow the ontology as this would require deeper nesting with b-nodes, which is an overcomplication for the current use cases |
ContentTypes | Functionalities to identify RDF content types |
DereferencerBatch | Starting with one URL, the DereferencerBatch handles the nested retrieval of data by following known predicates in retrieved data, and processing retrieval results with data providers. |
DereferencerThread | The DereferencerThread executes a given DereferencingTask. |
DereferencingResult | The dereferencing result contains informations about the success or failure of a DereferencingTasks execution. |
DereferencingTaskQueue | The DereferencingTaskQueue is a thread which observes the DereferencerThreads. |
ExtendedDereferencingTask | Extends DereferencingTask with redirectStep ,
done and forceReload properties |
HttpStatusCodes | Provides functionalities to work with HTTP status codes |
RDFGraphInserter | An RDF Handler that adds all processed statements to a graph |
SemanticWebClient | Provides functionalities to load URLs and to discover related data by means of data providers. |
SpongerProvider | Allows to utilize the Sponger functionalities of a local Virtuoso Server installation, which allow RDF extraction from a multitude of formats including GRDDL, RDFa and Microformats |
The classes of this package are used to retrieve content from the Web. Classes from the Semantic Web Client library were adapted to the Sesame framework and to perform retrieval using the Apache Commons HttpClient. A CacheController
manages access to cached data. A SpongerProvider
allows to utilize the Sponger functionalities of a local Virtuoso Server installation, which allow RDF extraction from a multitude of formats including GRDDL, RDFa and Microformats.
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