Re: Create Lucene index from existing TDB

[Andy Seaborne]

(sorry for the brief reply ... travelling)

On 17/10/17 21:54, Dimov, Stefan wrote:

Hello,

I have an existing (persisted) TDB and I’m starting Fuseki like this:

             Location location = Location.create("tdb");
             ds = TDBFactory.createDataset(location);

See TextDatasetFactory.create(Dataset base, TextIndex textIndex)

and register that dataset built around the TDB one.

    Andy

             FusekiServer fs = FusekiServer.create()
                     .add("/ds", ds)
                     .build();
             fs.start();

I want to create a (persisted) index from it for specific subject like this:

         EntityDefinition entDef = new EntityDefinition("uri", "text", "graph") 
;
         Resource res = ResourceFactory.createProperty(“http:/ao.com/name”);
         entDef.setPrimaryPredicate(res);
         Path path = Paths.get("lucene_index");
         Directory dir = FSDirectory.open(path);
         ds = TextDatasetFactory.createLucene(ds, dir, entDef, null);

So, the code looks like this:

         Location location = Location.create("tdb");
         ds = TDBFactory.createDataset(location);

         EntityDefinition entDef = new EntityDefinition("uri", "text", "graph") 
;
         Resource res = ResourceFactory.createProperty(“http:/ao.com/name”);
         entDef.setPrimaryPredicate(res);
         Path path = Paths.get("lucene_index");
         Directory dir = FSDirectory.open(path);
         ds = TextDatasetFactory.createLucene(ds, dir, entDef, null);

         FusekiServer fs = FusekiServer.create()
                     .add("/ds", ds)
                     .build();
          fs.start();

and the dataset is getting loaded, but no index is getting created.

What am I doing wrong?

S.