@Override
public String toString() {
QueryModelTreePrinter treePrinter = new QueryModelTreePrinter();
UnarySqlOperator clone = this.clone();
UnarySqlOperator parent =
new UnarySqlOperator(clone) {
@Override
public <X extends Exception> void visit(RdbmsQueryModelVisitorBase<X> visitor) throws X {
visitor.meetOther(this);
}
};
new SqlConstantOptimizer().optimize(clone);
parent.getArg().visit(treePrinter);
return treePrinter.getTreeString();
}
public static void main(String[] args) throws Exception {
Sail s = new MemoryStore();
SailRepository repo = new SailRepository(s);
repo.initialize();
SailRepositoryConnection conn = repo.getConnection();
URI sub = new URIImpl("uri:entity");
URI subclass = new URIImpl("uri:class");
URI obj = new URIImpl("uri:obj");
URI talksTo = new URIImpl("uri:talksTo");
conn.add(sub, RDF.TYPE, subclass);
conn.add(sub, RDFS.LABEL, new LiteralImpl("label"));
conn.add(sub, talksTo, obj);
URI sub2 = new URIImpl("uri:entity2");
URI subclass2 = new URIImpl("uri:class2");
URI obj2 = new URIImpl("uri:obj2");
conn.add(sub2, RDF.TYPE, subclass2);
conn.add(sub2, RDFS.LABEL, new LiteralImpl("label2"));
conn.add(sub2, talksTo, obj2);
// TODO Auto-generated method stub
String indexSparqlString =
"" //
+ "SELECT ?e ?l ?c " //
+ "{" //
+ " ?e a ?c . " //
+ " ?e <http://www.w3.org/2000/01/rdf-schema#label> ?l " //
+ "}"; //
conn.prepareTupleQuery(QueryLanguage.SPARQL, indexSparqlString)
.evaluate(new SPARQLResultsXMLWriter(System.out));
SPARQLParser sp = new SPARQLParser();
ParsedQuery pq = sp.parseQuery(indexSparqlString, null);
System.out.println(pq);
List<ExternalTupleSet> index = Lists.newArrayList();
Connector accCon = new MockInstance().getConnector("root", "".getBytes());
String tablename = "table";
accCon.tableOperations().create(tablename);
index.add(new AccumuloIndexSet(indexSparqlString, conn, accCon, tablename));
String queryString =
"" //
+ "SELECT ?e ?c ?l ?o " //
+ "{" //
+ " ?e a ?c . " //
+ " ?e <http://www.w3.org/2000/01/rdf-schema#label> ?l . " //
+ " ?e <uri:talksTo> ?o . " //
+ "}"; //
conn.prepareTupleQuery(QueryLanguage.SPARQL, queryString)
.evaluate(new SPARQLResultsXMLWriter(System.out));
pq = sp.parseQuery(queryString, null);
QueryModelTreePrinter mp = new QueryModelTreePrinter();
pq.getTupleExpr().visit(mp);
System.out.println(mp.getTreeString());
System.out.println(pq.getTupleExpr());
System.out.println("++++++++++++");
ExternalProcessor processor = new ExternalProcessor(index);
System.out.println(processor.process(pq.getTupleExpr()));
System.out.println("----------------");
Sail processingSail = new ExternalSail(s, processor);
SailRepository smartSailRepo = new SailRepository(processingSail);
smartSailRepo.initialize();
smartSailRepo
.getConnection()
.prepareTupleQuery(QueryLanguage.SPARQL, queryString)
.evaluate(new SPARQLResultsXMLWriter(System.out));
}