litvinovg/vitro
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

[VIVO-1031] Minor improvements to remove RDFServiceGraph usage from reinferencer.

Browse source
This commit is contained in:
grahamtriggs 2015-10-31 14:13:44 +00:00
parent 5d6f4dada7
commit 1832bba831
1 changed files with 39 additions and 21 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

60
webapp/src/edu/cornell/mannlib/vitro/webapp/reasoner/ABoxRecomputer.java
View file

@ -57,7 +57,6 @@ public class ABoxRecomputer {
private OntModel tboxModel; // asserted and inferred TBox axioms
private OntModel aboxModel;
private Model inferenceModel;
private RDFService rdfService;
private SimpleReasoner simpleReasoner;
private Object lock1 = new Object();
@ -70,7 +69,6 @@ public class ABoxRecomputer {
/**
* @param tboxModel - input. This model contains both asserted and inferred TBox axioms
* @param aboxModel - input. This model contains asserted ABox statements
* @param inferenceModel - output. This is the model in which inferred (materialized) ABox statements are maintained (added or retracted).
*/
public ABoxRecomputer(OntModel tboxModel,
OntModel aboxModel,
@ -80,8 +78,6 @@ public class ABoxRecomputer {
this.tboxModel = tboxModel;
this.aboxModel = aboxModel;
this.rdfService = rdfService;
this.inferenceModel = RDFServiceGraph.createRDFServiceModel(
new RDFServiceGraph(rdfService, ModelNames.ABOX_INFERENCES));
this.simpleReasoner = simpleReasoner;
this.searchIndexer = searchIndexer;
recomputing = false;
@ -328,7 +324,7 @@ public class ABoxRecomputer {
if (caches == null) {
return getMostSpecificTypes(individual, assertedTypes);
}
TypeList key = new TypeList(assertedTypes, RDF.type);
Model mostSpecificTypes = caches.getMostSpecificTypesToModel(key, individual);
if (mostSpecificTypes == null) {
@ -377,10 +373,10 @@ public class ABoxRecomputer {
" UNION \n" +
" { ?inv <" + OWL.inverseOf.getURI() + "> ?prop } \n" +
"} \n";
return RDFServiceUtils.parseModel(
rdfService.sparqlConstructQuery(
queryStr, RDFService.ModelSerializationFormat.N3)
, RDFService.ModelSerializationFormat.N3);
Model model = ModelFactory.createDefaultModel();
rdfService.sparqlConstructQuery(queryStr, model);
return model;
}
private Model rewriteInferences(Model inferences, String aliasURI) {
@ -460,6 +456,23 @@ public class ABoxRecomputer {
}
protected void addInferenceStatementsFor(String individualUri, Model addTo) throws RDFServiceException {
StringBuilder builder = new StringBuilder();
builder.append("CONSTRUCT\n")
.append("{\n")
.append(" <" + individualUri + "> ?p ?o .\n")
.append("}\n")
.append("WHERE\n")
.append("{\n")
.append(" GRAPH <").append(ModelNames.ABOX_INFERENCES).append(">\n")
.append(" {\n")
.append(" <" + individualUri + "> ?p ?o .\n")
.append(" }\n")
.append("}\n");
rdfService.sparqlConstructQuery(builder.toString(), addTo);
}
/*
* reconcile a set of inferences into the application inference model
*/
@ -467,21 +480,26 @@ public class ABoxRecomputer {
Collection<String> individuals) throws RDFServiceException {
Model existing = ModelFactory.createDefaultModel();
for (String individualURI : individuals) {
Resource subjInd = ResourceFactory.createResource(individualURI);
existing.add(inferenceModel.listStatements(subjInd, null, (RDFNode) null));
addInferenceStatementsFor(individualURI, existing);
}
Model retractions = existing.difference(rebuildModel);
Model additions = rebuildModel.difference(existing);
long start = System.currentTimeMillis();
ChangeSet change = rdfService.manufactureChangeSet();
change.addRemoval(makeN3InputStream(retractions),
RDFService.ModelSerializationFormat.N3, ModelNames.ABOX_INFERENCES);
change.addAddition(makeN3InputStream(additions),
RDFService.ModelSerializationFormat.N3, ModelNames.ABOX_INFERENCES);
rdfService.changeSetUpdate(change);
log.debug((System.currentTimeMillis() - start) +
" ms to retract " + retractions.size() +
" statements and add " + additions.size() + " statements");
if (additions.size() > 0 || retractions.size() > 0) {
long start = System.currentTimeMillis();
ChangeSet change = rdfService.manufactureChangeSet();
if (retractions.size() > 0) {
change.addRemoval(makeN3InputStream(retractions),
RDFService.ModelSerializationFormat.N3, ModelNames.ABOX_INFERENCES);
}
if (additions.size() > 0) {
change.addAddition(makeN3InputStream(additions),
RDFService.ModelSerializationFormat.N3, ModelNames.ABOX_INFERENCES);
}
rdfService.changeSetUpdate(change);
log.debug((System.currentTimeMillis() - start) +
" ms to retract " + retractions.size() +
" statements and add " + additions.size() + " statements");
}
}
private InputStream makeN3InputStream(Model m) {