MaJorToM-Connector¶ ↑

This gem provides easy access to any MaJorToM-Server.

Requirements¶ ↑

• MultiJSON - github.com/intridea/multi_json

Install¶ ↑

• sudo gem install majortom_connector (mandatory)

• Copy the majortom-server.yml from the examples folder into the config folder of your Rails app and configure it to your needs (optional).

Usage¶ ↑

This documentation describes the use of majortom_connector version 0.0.4.

1. Before executing any request, you must connect to the server with

   c = MajortomConnector.connect "base_iri_or_map_id"
   

2. In case you did not provide and edit the config/majortom-server.yml you can configure the connector by calling

   c.config.(host|port|context|api_key|map_id) = your_value

3. Check the completeness of your configuration with

   c.ready?
   

   or check, whether the configured server actually responds with

   c.established?
   

4. Start the topic map madness.

   • Get the id of the map you are connected with

     c.topic_map_id
     

   • Get all maps that are on the server

     c.list_maps
     

   • Find the id of a map with given base locator

     c.find_topic_map_id_by_base_iri(base_iri)
     

   • Get all topics of the connected map*

     c.topics
     

   • Fire a TMQL query against the server*

     c.tmql(query)
     

   • Fire a SPARQL query against the server

     c.sparql(query)
     

   • Do a search in the fulltext index of the map that was created while loading

     c.search(query)
     

   • Receive an XTM or CTM serialization of your map with

     c.to_xtm and c.to_ctm
     

   • In case you want to clear the query cache, you can call

     c.clear_cache
     

5. Get your data from the connector by calling

   data = c.request.result
   

The result object has several values:

• http_status, http_message and http_body represent the data from the HTTP response

• code says, whether all went fine (if it’s 0) or not

• message has a message from the server for you (‘OK’ or any error message)

• data contains the actual data that was returned from the server if no error occured

External documentation¶ ↑

• You can find the JTMQR result format there: code.google.com/p/tmql/wiki/JTMQR