/**
* Execute an ASK query
*
* @param query
* @return
*/
public boolean executeAskQuery(String query) {
Query query1 = QueryFactory.create(query);
QueryExecution qexec = QueryExecutionFactory.create(query1, ontologie);
try {
if (query.toLowerCase().contains("ask")) {
return (qexec.execAsk());
}
} finally {
qexec.close();
}
return false;
}
public Boolean executeAskQuery(Query sparql, QuerySolution initialBindings) {
try {
Data data = getData();
QueryExecution queryExec = getQueryExecution(sparql, initialBindings, data);
boolean result = queryExec.execAsk();
queryExec.close();
data.close();
return result;
} catch (DataException e) {
e.printStackTrace();
return null;
}
}
public static void main(String[] args) {
Store store = HBaseRdfFactory.connectStore(args[0]);
Model model = HBaseRdfFactory.connectNamedModel(store, args[1]);
int numOfRuns = new Integer(args[2]).intValue();
for (int i = 1; i <= numOfRuns; i++) {
long startTime = System.nanoTime();
try {
String queryString =
" PREFIX xsd: <http://www.w3.org/2001/XMLSchema#> "
+ " PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> "
+ " PREFIX foaf: <http://xmlns.com/foaf/0.1/> "
+ " PREFIX dc: <http://purl.org/dc/elements/1.1/> "
+ " ASK { "
+ " ?erdoes rdf:type foaf:Person . "
+ " ?erdoes foaf:name \"Paul Erdoes\"^^xsd:string . "
+ " { "
+ " ?document dc:creator ?erdoes . "
+ " ?document dc:creator ?author . "
+ " ?document2 dc:creator ?author . "
+ " ?document2 dc:creator ?author2 . "
+ " ?author2 foaf:name ?name "
+ " FILTER (?author!=?erdoes && ?document2!=?document && ?author2!=?erdoes && ?author2!=?author) "
+ " } UNION { "
+ " ?document dc:creator ?erdoes . "
+ " ?document dc:creator ?author . "
+ " ?author foaf:name ?name "
+ " FILTER (?author!=?erdoes) "
+ " } "
+ " } ";
QueryExecution qexec = QueryExecutionFactory.create(queryString, model);
if (qexec.execAsk()) System.out.println("executed ask query correctly");
else System.out.println("did not execute ask query");
qexec.close();
} catch (Exception e) {
e.printStackTrace();
}
long endTime = System.nanoTime();
System.out.println("Time to run Q12b:: " + (endTime - startTime) * 1e-6 + " ms.");
}
}
void runTestAsk(Query query, QueryExecution qe) throws Exception {
boolean result = qe.execAsk();
if (results != null) {
if (results.isBoolean()) {
boolean b = results.getBooleanResult();
assertEquals("ASK test results do not match", b, result);
} else {
Model resultsAsModel = results.getModel();
StmtIterator sIter =
results.getModel().listStatements(null, RDF.type, ResultSetGraphVocab.ResultSet);
if (!sIter.hasNext()) throw new QueryTestException("Can't find the ASK result");
Statement s = sIter.nextStatement();
if (sIter.hasNext()) throw new QueryTestException("Too many result sets in ASK result");
Resource r = s.getSubject();
Property p = resultsAsModel.createProperty(ResultSetGraphVocab.getURI() + "boolean");
boolean x = r.getRequiredProperty(p).getBoolean();
if (x != result) assertEquals("ASK test results do not match", x, result);
}
}
return;
}
// evict
public boolean evict() {
this.dropQueryString = "";
// limit the eviction times so as to save time during benchmark
if (this.evictCounter > this.totalEvictTimes) {
this.evictCounter = 1;
return false;
} else {
this.evictCounter++;
}
// if evict the whole cache each time
if (this.evictAmount == this.size) {
while (this.cacheContentOfGraphIds.size() != 0) {
GraphIdCounterPair x = this.cacheContentOfGraphIds.poll();
this.dropQueryString += "drop graph <" + x.graphId + ">;";
}
}
// when evictAmount < size
else {
// check if the amount of the expired data exceeds the evictAmount
while (this.toDeleteCounter < this.evictAmount) {
GraphIdCounterPair x = this.cacheContentOfGraphIds.poll();
this.dropQueryString += "drop graph <" + x.graphId + ">;";
++toDeleteCounter;
}
}
// if this.toDeleteCounter >= this.evictAmount, dropQueryString will be
// empty.
if (!this.dropQueryString.equals("")) {
// delete the data from the database
AGQuery sparql = AGQueryFactory.create(dropQueryString);
QueryExecution qe = AGQueryExecutionFactory.create(sparql, model);
qe.execAsk();
qe.close();
}
return true;
}
public String executeQuery(String query, String t) {
String res = "";
Query query1 = QueryFactory.create(query);
QueryExecution qexec = QueryExecutionFactory.create(query1, ontologie);
Pattern p = Pattern.compile("([0-9]+\\.[0-9])");
try {
if (query.toLowerCase().contains("ask")) {
boolean resultsASK = qexec.execAsk();
if (resultsASK) {
return "true";
} else {
return "false";
}
} else if (query.toLowerCase().contains("select")) {
ResultSet results = qexec.execSelect();
res = "<table border=\"1\"><tr><th>Variable</th><th>Value</th></tr>";
while (results.hasNext()) {
QuerySolution next = results.next();
Iterator<String> varNames = next.varNames();
while (varNames.hasNext()) {
String next1 = varNames.next(); // nomde la variable dans le select
System.out.println("next1= " + next1);
String e = next.get(next1).toString(); // valeur que prend la variable
// ignorer les rdf:type de type resource, owl:prop....
if (e.equals("http://www.w3.org/2000/01/rdf-schema#Class")
|| e.equals("http://www.w3.org/1999/02/22-rdf-syntax-ns#Property")
|| e.equals("http://www.w3.org/2000/01/rdf-schema#Datatype")
|| e.equals("http://www.w3.org/1999/02/22-rdf-syntax-ns#List")
|| e.equals("http://www.w3.org/2004/03/trix/rdfg-1Graph")
|| e.equals("http://www.w3.org/2000/01/rdf-schema#subPropertyOf")
|| e.equals("http://www.w3.org/2000/01/rdf-schema#range")
|| e.equals("http://www.w3.org/2000/01/rdf-schema#Resource")
|| e.equals("http://www.w3.org/2000/01/rdf-schema#Literal")
|| e.equals("http://www.w3.org/2000/01/rdf-schema#label")
|| e.equals("http://www.w3.org/1999/02/22-rdf-syntax-ns#Statement")
|| e.equals("http://www.w3.org/2000/01/rdf-schema#subClassOf")
|| e.equals("http://www.w3.org/1999/02/22-rdf-syntax-ns#subject")
|| e.equals("http://www.w3.org/1999/02/22-rdf-syntax-ns#object")
|| e.equals("http://www.w3.org/1999/02/22-rdf-syntax-ns#nil")
|| e.equals("http://www.w3.org/2000/01/rdf-schema#range")
|| e.equals("http://www.w3.org/1999/02/22-rdf-syntax-ns#type")
|| e.equals("http://www.w3.org/1999/02/22-rdf-syntax-ns#rest")
|| e.equals("http://www.w3.org/1999/02/22-rdf-syntax-ns#first")
|| e.equals("http://www.w3.org/1999/02/22-rdf-syntax-ns#XMLLiteral")
|| e.equals("http://www.w3.org/2000/01/rdf-schema#comment")
|| e.equals("http://www.w3.org/2000/01/rdf-schema#ContainerMembershipProperty")
|| e.equals("http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate")
|| e.equals("http://www.w3.org/1999/02/22-rdf-syntax-ns#Seq")
|| e.equals("http://www.w3.org/2000/01/rdf-schema#seeAlso")
|| e.equals("http://www.w3.org/1999/02/22-rdf-syntax-ns#Bag")
|| e.equals("http://www.w3.org/2000/01/rdf-schema#seeAlso")
|| e.equals("http://www.w3.org/2000/01/rdf-schema#domain")) {
continue;
}
if (t != null && !t.isEmpty()) { // appliquer le trust
// String[] split_res=next.get(next1).toString().split("
// ");
// for(String s:split_res){
Matcher m = p.matcher(next.get(next1).toString());
if (m.find()) {
float parseInt = Float.parseFloat(next.get(next1).toString());
float parseInt1 = Float.parseFloat(t);
e = Float.toString(parseInt * parseInt1);
}
// res = res + "<tr> <td><b>" + next1 + ": </b></td><td>" +
// e+"</td></tr>";
// }
} // else
{
res = res = res + " <tr> <td><b>" + next1 + ": </b></td><td>" + e + "</td></tr>";
}
}
res = res = res + " <tr> <td>New line</td></tr>";
}
res = res + "</table>";
ResultSetFormatter.out(System.out, results, query1);
} else { // Cas du describe
Model describeModel = qexec.execDescribe();
res = describeModel.toString();
}
} finally {
qexec.close();
}
return res;
}
// sparql
public void sparql() throws IOException, RepositoryException, QueryEvaluationException {
// find all expired data to avoid them participating the query:
this.toDeleteCounter = 0;
this.dropQueryString = "";
ArrayList<GraphIdCounterPair> expiredData = new ArrayList<GraphIdCounterPair>();
LocalTime evictionTime = LocalTime.now();
for (GraphIdCounterPair x : this.cacheContentOfGraphIds) {
System.out.print(
this.evictCounter
+ ", "
+ this.size
+ ", "
+ this.evictAmount
+ ", "
+ x.graphId
+ ", "
+ x.arrivalTime
+ ", "
+ x.expirationTime);
if (x.expirationTime.isBefore(evictionTime)) {
expiredData.add(x);
dropQueryString += "drop graph <" + x.graphId + ">;";
System.out.println(", expired");
++toDeleteCounter;
} else {
System.out.println();
}
}
System.out.println("[INFO] " + expiredData.size() + " data expired!");
if (!expiredData.isEmpty()) {
// delete expired data from the cache
for (GraphIdCounterPair x : expiredData) {
this.cacheContentOfGraphIds.remove(x);
}
// delete the expired data from the database
QueryExecution qe =
AGQueryExecutionFactory.create(AGQueryFactory.create(dropQueryString), model);
qe.execAsk();
qe.close();
}
// after deleting expired data, load the cache again
this.streamEmulation();
System.out.println(this.reasoner.getEntailmentRegime());
this.infModel = new AGInfModel(this.reasoner, this.model);
String queryString =
"select distinct ?s "
+ "where { ?s <http://www.w3.org/1999/02/22-rdf-syntax-ns#type>"
+ "<http://swat.cse.lehigh.edu/onto/univ-bench.owl#Professor>.}";
AGRepositoryConnection conn = this.client.getAGConn();
TupleQuery tupleQuery = conn.prepareTupleQuery(QueryLanguage.SPARQL, queryString);
tupleQuery.setIncludeInferred(true);
long sparqlStartTime = System.currentTimeMillis();
TupleQueryResult resultSet = tupleQuery.evaluate();
long sparqlEndTime = System.currentTimeMillis();
this.aveSparql += (sparqlEndTime - sparqlStartTime);
ArrayList<String> results = new ArrayList<String>();
while (resultSet.hasNext()) {
String result = resultSet.next().toString();
System.out.println("result");
int length = result.length();
results.add(result.substring(3, length - 1));
}
resultSet.close();
this.fMeasureBench(results);
this.infModel.close();
}