/**
* Example the conclusions graph for introduction of restrictions which require a comprehension
* rewrite and declare new (anon) classes for those restrictions.
*/
public void comprehensionAxioms(Model premises, Model conclusions) {
// Comprehend all restriction declarations and note them in a map
Map<Resource, Resource> comprehension = new HashMap<>();
StmtIterator ri = conclusions.listStatements(null, RDF.type, OWL.Restriction);
while (ri.hasNext()) {
Resource restriction = ri.nextStatement().getSubject();
StmtIterator pi = restriction.listProperties(OWL.onProperty);
while (pi.hasNext()) {
Resource prop = (Resource) pi.nextStatement().getObject();
StmtIterator vi = restriction.listProperties();
while (vi.hasNext()) {
Statement rs = vi.nextStatement();
if (!rs.getPredicate().equals(OWL.onProperty)) {
// Have a restriction on(prop) of type rs in the conclusions
// So assert a premise that such a restriction could exisit
Resource comp =
premises
.createResource()
.addProperty(RDF.type, OWL.Restriction)
.addProperty(OWL.onProperty, prop)
.addProperty(rs.getPredicate(), rs.getObject());
comprehension.put(restriction, comp);
}
}
}
}
// Comprehend any intersectionOf lists. Introduce anon class which has the form
// of the intersection expression.
// Rewrite queries of the form (X intersectionOf Y) to the form
// (X equivalentClass ?CC) (?CC intersectionOf Y)
StmtIterator ii = conclusions.listStatements(null, OWL.intersectionOf, (RDFNode) null);
List<Statement> intersections = new ArrayList<>();
while (ii.hasNext()) {
intersections.add(ii.nextStatement());
}
for (Statement is : intersections) {
// Declare in the premises that such an intersection exists
Resource comp =
premises
.createResource()
.addProperty(RDF.type, OWL.Class)
.addProperty(
OWL.intersectionOf, mapList(premises, (Resource) is.getObject(), comprehension));
// Rewrite the conclusions to be a test for equivalence between the class being
// queried and the comprehended interesection
conclusions.remove(is);
conclusions.add(is.getSubject(), OWL.equivalentClass, comp);
}
// Comprehend any oneOf lists
StmtIterator io = conclusions.listStatements(null, OWL.oneOf, (RDFNode) null);
while (io.hasNext()) {
Statement s = io.nextStatement();
Resource comp = premises.createResource().addProperty(OWL.oneOf, s.getObject());
}
}
protected static void addDomainTypes(Model result, Model schema) {
for (StmtIterator it = schema.listStatements(ANY, RDFS.domain, ANY); it.hasNext(); ) {
Statement s = it.nextStatement();
Property property = s.getSubject().as(Property.class);
RDFNode type = s.getObject();
for (StmtIterator x = result.listStatements(ANY, property, ANY); x.hasNext(); ) {
Statement t = x.nextStatement();
result.add(t.getSubject(), RDF.type, type);
}
}
}
protected static void addRangeTypes(Model result, Model schema) {
Model toAdd = ModelFactory.createDefaultModel();
for (StmtIterator it = schema.listStatements(ANY, RDFS.range, ANY); it.hasNext(); ) {
Statement s = it.nextStatement();
RDFNode type = s.getObject();
Property property = s.getSubject().as(Property.class);
for (StmtIterator x = result.listStatements(ANY, property, ANY); x.hasNext(); ) {
RDFNode ob = x.nextStatement().getObject();
if (ob.isResource()) toAdd.add((Resource) ob, RDF.type, type);
}
}
result.add(toAdd);
}
protected static void addSupertypes(Model result) {
Model temp = ModelFactory.createDefaultModel();
for (StmtIterator it = result.listStatements(ANY, RDF.type, ANY); it.hasNext(); ) {
Statement s = it.nextStatement();
Resource c = AssemblerHelp.getResource(s);
for (StmtIterator subclasses = result.listStatements(c, RDFS.subClassOf, ANY);
subclasses.hasNext(); ) {
RDFNode type = subclasses.nextStatement().getObject();
// System.err.println( ">> adding super type: subject " + s.getSubject() + ", type " + type
// );
temp.add(s.getSubject(), RDF.type, type);
}
}
result.add(temp);
}
/** Return a list of all tests of the given type, according to the current filters */
public List<Resource> findTestsOfType(Resource testType) {
ArrayList<Resource> result = new ArrayList<>();
StmtIterator si = testDefinitions.listStatements(null, RDF.type, testType);
while (si.hasNext()) {
Resource test = si.nextStatement().getSubject();
boolean accept = true;
// Check test status
Literal status = (Literal) test.getProperty(RDFTest.status).getObject();
if (approvedOnly) {
accept = status.getString().equals(STATUS_FLAGS[0]);
} else {
accept = false;
for (String STATUS_FLAG : STATUS_FLAGS) {
if (status.getString().equals(STATUS_FLAG)) {
accept = true;
break;
}
}
}
// Check for blocked tests
for (String BLOCKED_TEST : BLOCKED_TESTS) {
if (BLOCKED_TEST.equals(test.toString())) {
accept = false;
}
}
// End of filter tests
if (accept) {
result.add(test);
}
}
return result;
}
/**
* Index all the resources in a Jena Model to ES
*
* @param model the model to index
* @param bulkRequest a BulkRequestBuilder
* @param getPropLabel if set to true all URI property values will be indexed as their label. The
* label is taken as the value of one of the properties set in {@link #uriDescriptionList}.
*/
private void addModelToES(Model model, BulkRequestBuilder bulkRequest, boolean getPropLabel) {
long startTime = System.currentTimeMillis();
long bulkLength = 0;
HashSet<Property> properties = new HashSet<Property>();
StmtIterator it = model.listStatements();
while (it.hasNext()) {
Statement st = it.nextStatement();
Property prop = st.getPredicate();
String property = prop.toString();
if (rdfPropList.isEmpty()
|| (isWhitePropList && rdfPropList.contains(property))
|| (!isWhitePropList && !rdfPropList.contains(property))
|| (normalizeProp.containsKey(property))) {
properties.add(prop);
}
}
ResIterator resIt = model.listSubjects();
while (resIt.hasNext()) {
Resource rs = resIt.nextResource();
Map<String, ArrayList<String>> jsonMap = getJsonMap(rs, properties, model, getPropLabel);
bulkRequest.add(
client.prepareIndex(indexName, typeName, rs.toString()).setSource(mapToString(jsonMap)));
bulkLength++;
// We want to execute the bulk for every DEFAULT_BULK_SIZE requests
if (bulkLength % EEASettings.DEFAULT_BULK_SIZE == 0) {
BulkResponse bulkResponse = bulkRequest.execute().actionGet();
// After executing, flush the BulkRequestBuilder.
bulkRequest = client.prepareBulk();
if (bulkResponse.hasFailures()) {
processBulkResponseFailure(bulkResponse);
}
}
}
// Execute remaining requests
if (bulkRequest.numberOfActions() > 0) {
BulkResponse response = bulkRequest.execute().actionGet();
// Handle failure by iterating through each bulk response item
if (response.hasFailures()) {
processBulkResponseFailure(response);
}
}
// Show time taken to index the documents
logger.info(
"Indexed {} documents on {}/{} in {} seconds",
bulkLength,
indexName,
typeName,
(System.currentTimeMillis() - startTime) / 1000.0);
}
/**
* Add to <code>toAdd</code> all the superclass statements needed to note that any indirect
* subclass of <code>X = parents.item</code> has as superclass all the classes between it and X
* and all the remaining elements of <code>parents</code>.
*/
private static void addSuperClasses(Model m, LinkedSeq parents, Model toAdd) {
Resource type = parents.item;
for (StmtIterator it = m.listStatements(null, RDFS.subClassOf, type); it.hasNext(); ) {
Resource t = it.nextStatement().getSubject();
for (LinkedSeq scan = parents.rest; scan != null; scan = scan.rest)
toAdd.add(t, RDFS.subClassOf, scan.item);
addSuperClasses(m, parents.push(t), toAdd);
}
}
public void testQuintetOfQuadlets() {
Resource rs = model.createResource();
rs.addProperty(RDF.type, RDF.Statement);
model.createResource().addProperty(RDF.value, rs);
rs.addProperty(RDF.subject, model.createResource());
rs.addProperty(RDF.predicate, model.createProperty("http://example.org/foo"));
rs.addProperty(RDF.object, model.createResource());
rs.addProperty(RDF.object, model.createResource());
StmtIterator it = model.listStatements();
while (it.hasNext()) {
Statement s = it.nextStatement();
assertFalse(s.getObject().equals(s.getSubject()));
}
}
/**
* Check that a predicate for which no shortnames are defined in name map still gets a term
* binding in the metadata.
*/
@Test
public void testTermBindingsCoverAllPredicates() throws URISyntaxException {
Resource thisPage = ResourceFactory.createResource("elda:thisPage");
String pageNumber = "1";
Bindings cc = new Bindings();
URI reqURI = new URI("");
//
EndpointDetails spec =
new EndpointDetails() {
@Override
public boolean isListEndpoint() {
return true;
}
@Override
public boolean hasParameterBasedContentNegotiation() {
return false;
}
};
EndpointMetadata em = new EndpointMetadata(spec, thisPage, pageNumber, cc, reqURI);
//
PrefixMapping pm =
PrefixMapping.Factory.create().setNsPrefix("this", "http://example.com/root#");
Model toScan = ModelIOUtils.modelFromTurtle(":a <http://example.com/root#predicate> :b.");
toScan.setNsPrefixes(pm);
Resource predicate = toScan.createProperty("http://example.com/root#predicate");
Model meta = ModelFactory.createDefaultModel();
Resource exec = meta.createResource("fake:exec");
ShortnameService sns = new StandardShortnameService();
// APIEndpoint.Request r = new APIEndpoint.Request( new Controls(), reqURI, cc );
CompleteContext c =
new CompleteContext(CompleteContext.Mode.PreferPrefixes, sns.asContext(), pm)
.include(toScan);
em.addTermBindings(toScan, meta, exec, c);
@SuppressWarnings("unused")
Map<String, String> termBindings = c.Do();
Resource tb = meta.listStatements(null, API.termBinding, Any).nextStatement().getResource();
assertTrue(meta.contains(tb, API.label, "this_predicate"));
assertTrue(meta.contains(tb, API.property, predicate));
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String path = request.getPathInfo();
boolean htmlOutput = true;
String language = null;
String contentType = "text/html; charset='utf-8'";
if (path != null) {
if (path.endsWith(".rdf")) {
contentType = "application/rdf+xml; charset='utf-8'";
htmlOutput = false;
language = "RDF/XML";
} else if (path.endsWith(".xml")) {
contentType = "application/xml; charset='utf-8'";
htmlOutput = false;
language = "RDF/XML";
} else if (path.endsWith(".n3")) {
contentType = "text/n3; charset='utf-8'";
htmlOutput = false;
language = "N3";
}
}
response.setContentType(contentType);
response.setStatus(HttpServletResponse.SC_OK);
Writer writer = response.getWriter();
synchronized (board) {
if (htmlOutput) {
writer.write(
"<!DOCTYPE html>\n"
+ "<html lang='en'>"
+ "<head><meta charset='utf-8'/><title>MATe model</title></head>"
+ "<body><ul>");
StmtIterator it = model.listStatements();
/* TODO: well, this could be prettier */
while (it.hasNext()) writer.write("<li>" + it.nextStatement() + "</li>");
writer.write("<ul></body></html>");
} else model.write(writer, language);
}
}
/**
* Answer the shortest path from the <code>start</code> resource to the <code>end</code> RDF node,
* such that every step on the path is accepted by the given filter. A path is a {@link List} of
* RDF {@link Statement}s. The subject of the first statement in the list is <code>start</code>,
* and the object of the last statement in the list is <code>end</code>.
*
* <p>The <code>onPath</code> argument is a {@link Filter}, which accepts a statement and returns
* true if the statement should be considered to be on the path. To search for an unconstrained
* path, pass {@link Filter#any} as an argument. To search for a path whose predicates match a
* fixed restricted set of property names, pass an instance of {@link PredicatesFilter}.
*
* <p>If there is more than one path of minimal length from <code>start</code> to <code>end</code>
* , this method returns an arbitrary one. The algorithm is blind breadth-first search, with loop
* detection.
*
* @param m The model in which we are seeking a path
* @param start The starting resource
* @param end The end, or goal, node
* @param onPath A filter which determines whether a given statement can be considered part of the
* path
* @return A path, consisting of a list of statements whose first subject is <code>start</code>,
* and whose last object is <code>end</code>, or null if no such path exists.
*/
public static Path findShortestPath(
Model m, Resource start, RDFNode end, Filter<Statement> onPath) {
List<Path> bfs = new LinkedList<Path>();
Set<Resource> seen = new HashSet<Resource>();
// initialise the paths
for (Iterator<Statement> i = m.listStatements(start, null, (RDFNode) null).filterKeep(onPath);
i.hasNext(); ) {
bfs.add(new Path().append(i.next()));
}
// search
Path solution = null;
while (solution == null && !bfs.isEmpty()) {
Path candidate = bfs.remove(0);
if (candidate.hasTerminus(end)) {
solution = candidate;
} else {
Resource terminus = candidate.getTerminalResource();
if (terminus != null) {
seen.add(terminus);
// breadth-first expansion
for (Iterator<Statement> i = terminus.listProperties().filterKeep(onPath);
i.hasNext(); ) {
Statement link = i.next();
// no looping allowed, so we skip this link if it takes us to a node we've seen
if (!seen.contains(link.getObject())) {
bfs.add(candidate.append(link));
}
}
}
}
}
return solution;
}
public static void main(String[] args) {
List<String> obj = new ArrayList<String>();
Scanner input = new Scanner(System.in);
System.out.print("Enter URI: ");
String userIn = input.nextLine();
// create an empty Model
Model model = ModelFactory.createDefaultModel();
// read the RDF/XML file
model.read(userIn);
// write it to standard out
// model.write(System.out);
// list the statements in the Model
StmtIterator iter = model.listStatements();
System.out.println();
// print out the predicate, subject and object of each statement
while (iter.hasNext()) {
Statement stmt = iter.nextStatement(); // get next statement
Resource subject = stmt.getSubject(); // get the subject
Property predicate = stmt.getPredicate(); // get the predicate
RDFNode object = stmt.getObject(); // get the object
System.out.print(subject.toString());
System.out.print(" -> " + predicate.toString() + " -> ");
if (object instanceof Resource) {
System.out.print(object.toString() + "\n");
} else {
// object is a literal
System.out.print(" \"" + object.toString() + "\"\n");
}
}
/* for(int i = 0; i < (obj.size()); i++){
String sparqlQueryString1=
"SELECT ?s ?o "+
"WHERE {"+
"?s ?p ?o ."+
"?o <bif:contains> \""+obj.get(i)+"\" ."+
"}"+
"limit 10";
Query query = QueryFactory.create(sparqlQueryString1);
QueryExecution qexec = QueryExecutionFactory.sparqlService("http://pubmed.bio2rdf.org/sparql", query);
ResultSet results = qexec.execSelect();
System.out.println("Query: "+obj.get(i));
ResultSetFormatter.out(System.out, results, query);
qexec.close() ;
} */
}
protected static void addSubclassesFrom(Model result, Model schema) {
for (StmtIterator it = schema.listStatements(ANY, RDFS.subClassOf, ANY); it.hasNext(); ) {
Statement s = it.nextStatement();
if (s.getSubject().isURIResource() && s.getObject().isURIResource()) result.add(s);
}
}
private static Set<Resource> subjectSet(Model result, Resource S, Property P, RDFNode O) {
return result.listStatements(S, P, O).mapWith(Statement.Util.getSubject).toSet();
}
private static void addIntersections(Model result, Model schema) {
StmtIterator it = schema.listStatements(ANY, OWL.intersectionOf, ANY);
while (it.hasNext()) addIntersections(result, schema, it.nextStatement());
}
/**
* Answer the set of all classes which appear in <code>m</code> as the subject or object of a
* <code>rdfs:subClassOf</code> statement.
*/
private static Set<RDFNode> findClassesBySubClassOf(Model m) {
Set<RDFNode> classes = new HashSet<RDFNode>();
StmtIterator it = m.listStatements(null, RDFS.subClassOf, (RDFNode) null);
while (it.hasNext()) addClasses(classes, it.nextStatement());
return classes;
}
