• DALICC license library consists of 344 licenses listed here.
• The whole license library (including license representations as documented here) is stored in the RDF file licensedata/licenselibrary/licenselibrary.ttl.
• The licenses are also in separate .ttl files under licensedata/licenses.

DALICC API supports the automated clearance of rights thus supporting the legally secure and time-efficient reutilization of third party data sources. The services are running here.

• docker
• docker-compose

• Execute the following commands in the folder:
  1. docker-compose build --pull
  2. docker-compose up -d
  3. mkdir reasoner/app/programs/temp

The URLs of the database and the reasoner are set via env in the docker-compose file. One exception is the config file of the reasoner: 'reasoner/reasoner.config'

In there is the URL of the database used by the hexlite plugin. This has to be changed additionally.

• Virtuoso is hosted using this Docker image.
• The Virtuoso DB is available at port 8890; see docker-compose.yml for configurations.
• The database files are stored in a local volume in virtuoso_data.

• Execute the following command for copying the RDF files into ttl_dump directory under virtuoso_data and specifying the graphs:
  1. cd licensedata
  2. sudo sh copy_ttls.sh
• To load RDF files into Virtuoso follow the instructions from the documentation:
  1. docker exec -it virtuoso-db bash
  2. isql-v -U dba -P dba
  3. SQL> ld_dir('ttl_dump', '*.ttl', NULL);
  4. SQL> rdf_loader_run();

• Build a full text index over the graph:
  1. docker exec -it virtuoso-db bash
  2. isql-v -U dba -P dba
  3. -- We specify that all string objects in the graph 'license-library' should be text indexed:
     • SQL> DB.DBA.RDF_OBJ_FT_RULE_ADD('https://dalicc.net/licenselibrary/', null, 'licenses');
  4. -- We update the text index.
     • SQL> DB.DBA.VT_INC_INDEX_DB_DBA_RDF_OBJ ();
• To set the text index to follow the triples in real time, use:
  • DB.DBA.VT_BATCH_UPDATE ('DB.DBA.RDF_OBJ', 'OFF', null);
• To set the text index to be updated every 10 minutes, use:
  • DB.DBA.VT_BATCH_UPDATE ('DB.DBA.RDF_OBJ', 'ON', 10);
• Example query using the full text index:
  • SELECT * FROM <https://dalicc.net/licenselibrary/> WHERE { ?s ?p ?o . ?o bif:contains '"Mozilla*"' . }

• https://vos.openlinksw.com/owiki/wiki/VOS/VirtRemoveTriples

• The API is implemented using FastAPI.
• The source files of the API are in app; FastAPI reloads the application on any local changes.

• The Swagger documentation is avaliable at localhost:8090/docs.