wiki:ResourceStorage

ResourceStorage

Interface: ResourceStorage.java

stores all resources of the user, these are typically data extracted from the filesystem, address-books or e-mails:

  • files
  • addresses
  • e-mails, etc.

Its filled by Aperture and the ApertureSynchroniser. Sometimes applications add a resource here before they are tagged using the TaggingApi, so also the TaggingApi will store here.

Features

  • mass inserts using the addResource() and removeResource() methods.
  • fulltext search
  • similarity search (at the moment using lucene, switching to catwiesel soon)

XML/RPC Access

use the DataAccess API for that.

Fulltext-querying

From inside gnowsis (using Java code inside the gnowsis server), you go like this:

ResourceStorage s = Gnowsis.getResourceStorage();
Iterator<Tag> it = s.search("hello");
// iterate through uri/label/type returned inside the tags.

Sparql, SERQL and RDQL querying

From inside gnowsis, you can access the Sesame repository directly using the ResourceStorage.getRepository() method. All Sesame2 querying works on that. If you feel unhappy with Sesame, use our Jena wrappers for querying:

ResourceStorage s = Gnowsis.getResourceStorage();

// Sesame querying:
s.getRepository().....

// Jena querying
public ResultSet doSelectQuery(String query, QueryLanguage querylanguage)
public Model doConstructQuery(String query, QueryLanguage querylanguage)

Adding resources using web-interface

At the moment you cannot add resources to the resource-storage from the outside. You can use the TaggingApi to do this, though.

TaggingApi.ensureResourceIsInStore(String resourceUri, String label, String typeUri, String fulltext, String metadataXML)}}}

== Browsing the contents ==
The best way to see what is in the resource-storage is to use the local sesame web interface.
 * go to http://localhost:9993/sesame1
 * login
 * select the '''resource''' repository
 * press explore


= Implementation decisions =
Named graphs are used to seperate single resources, each !ResourceManifestation? gets a named graph.
Last modified 11 years ago Last modified on 09/20/06 23:37:50