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package uk.ac.ox.cs.pagoda.reasoner.light;
import net.sf.ehcache.Cache;
import net.sf.ehcache.CacheManager;
import net.sf.ehcache.Element;
import org.semanticweb.HermiT.model.*;
import uk.ac.ox.cs.JRDFox.JRDFStoreException;
import uk.ac.ox.cs.JRDFox.model.Datatype;
import uk.ac.ox.cs.JRDFox.model.GroundTerm;
import uk.ac.ox.cs.JRDFox.store.DataStore;
import uk.ac.ox.cs.JRDFox.store.DataStore.UpdateType;
import uk.ac.ox.cs.JRDFox.store.Dictionary;
import uk.ac.ox.cs.JRDFox.store.Resource;
import uk.ac.ox.cs.pagoda.owl.OWLHelper;
import uk.ac.ox.cs.pagoda.util.Namespace;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
public class RDFoxTripleManager {
private final Cache termsCache;
private static final int TERMS_CACHE_SIZE = 10000;
private static final int CACHE_TTL_DEFAULT = 0;
private static final int CACHE_TTI_DEFAULT = 0;
private static final boolean CACHE_ETERNAL = true;
private static final boolean CACHE_USE_DISK = false;
UpdateType m_incrementally;
// boolean m_incrementally;
DataStore m_store;
Dictionary m_dict;
// Set<Atom> triplesByTerm = new HashSet<Atom>();
public RDFoxTripleManager(DataStore store, boolean incrementally) {
m_store = store;
// m_incrementally = incrementally;
CacheManager cacheManager = CacheManager.getInstance();
String cacheName = "RDFoxTripleManager_" + store.hashCode();
if(! cacheManager.cacheExists(cacheName)) {
termsCache = new Cache(cacheName,
TERMS_CACHE_SIZE, CACHE_USE_DISK, CACHE_ETERNAL,
CACHE_TTL_DEFAULT, CACHE_TTI_DEFAULT);
cacheManager.addCache(termsCache);
}
else
termsCache = cacheManager.getCache(cacheName);
if (incrementally)
m_incrementally = UpdateType.ScheduleForAddition;
else
m_incrementally = UpdateType.Add;
try {
m_dict = store.getDictionary();
resourceID = m_dict.resolveResources(
new String[] {Namespace.RDF_TYPE, Namespace.EQUALITY, Namespace.INEQUALITY},
new int[] {Datatype.IRI_REFERENCE.value(), Datatype.IRI_REFERENCE.value(), Datatype.IRI_REFERENCE.value()}
);
} catch (JRDFStoreException e) {
e.printStackTrace();
}
}
public boolean isRdfTypeID(int id) {
return id == resourceID[0];
}
public void addTripleByID(int[] tuple) {
// System.out.println(getRawTerm(tuple[0]) + " " + getRawTerm(tuple[1]) + " " + getRawTerm(tuple[2]) + " .");
try {
// Resource[] rsc = new Resource[3];
// m_dict.getResources(tuple, 0, 3, rsc);
//
// GroundTerm[] terms = new GroundTerm[3];
// for (int i = 0; i < 3; ++i)
// terms[i] = uk.ac.ox.cs.JRDFox.model.Individual.create(rsc[i].m_lexicalForm);
// m_store.addTriples(terms, m_incrementally);
m_store.addTriplesByResourceIDs(tuple, m_incrementally);
} catch (JRDFStoreException e) {
e.printStackTrace();
}
}
public void addTripleByTerm(Atom atom) {
try {
m_store.addTriples(getRDFoxTriple(atom), m_incrementally);
} catch (JRDFStoreException e) {
e.printStackTrace();
}
}
public void removeTripleByTermIncrementally(Atom atom) {
try {
m_store.addTriples(getRDFoxTriple(atom), UpdateType.ScheduleForDeletion);
} catch (JRDFStoreException e) {
e.printStackTrace();
}
}
public static GroundTerm[] getRDFoxTriple(Atom instance) {
if (instance.getArity() == 1)
return new GroundTerm[] {
uk.ac.ox.cs.JRDFox.model.Individual.create(((Individual) instance.getArgument(0)).getIRI()),
uk.ac.ox.cs.JRDFox.model.Individual.RDF_TYPE,
uk.ac.ox.cs.JRDFox.model.Individual.create(((AtomicConcept) instance.getDLPredicate()).getIRI()) };
else if (instance.getDLPredicate() instanceof Equality || instance.getDLPredicate() instanceof AnnotatedEquality)
return new GroundTerm[] {
uk.ac.ox.cs.JRDFox.model.Individual.create(((Individual) instance.getArgument(0)).getIRI()),
uk.ac.ox.cs.JRDFox.model.Individual.SAME_AS,
uk.ac.ox.cs.JRDFox.model.Individual.create(((Individual) instance.getArgument(1)).getIRI()) };
else if (instance.getDLPredicate() instanceof Inequality)
return new GroundTerm[] {
uk.ac.ox.cs.JRDFox.model.Individual.create(((Individual) instance.getArgument(0)).getIRI()),
uk.ac.ox.cs.JRDFox.model.Individual.DIFFERENT_FROM,
uk.ac.ox.cs.JRDFox.model.Individual.create(((Individual) instance.getArgument(1)).getIRI()) };
else
return new GroundTerm[] {
uk.ac.ox.cs.JRDFox.model.Individual.create(((Individual) instance.getArgument(0)).getIRI()),
uk.ac.ox.cs.JRDFox.model.Individual.create(((AtomicRole) instance.getDLPredicate()).getIRI()),
uk.ac.ox.cs.JRDFox.model.Individual.create(((Individual) instance.getArgument(1)).getIRI()) };
}
int[] resourceID; // rdf:type, owl:sameAs, owl:differentFrom
public int[] getInstance(Atom atom, Map<Variable, Integer> assignment) {
DLPredicate p = atom.getDLPredicate();
if (p instanceof Equality || p instanceof AnnotatedEquality)
return new int[] {
getResourceID(atom.getArgument(0), assignment),
resourceID[1],
getResourceID(atom.getArgument(1), assignment)
};
else if (p instanceof Inequality)
return new int[] {
getResourceID(atom.getArgument(0), assignment),
resourceID[2],
getResourceID(atom.getArgument(1), assignment)
};
else if (atom.getArity() == 1)
return new int[] {
getResourceID(atom.getArgument(0), assignment),
resourceID[0],
getResourceID(p)
};
else
return new int[] {
getResourceID(atom.getArgument(0), assignment),
getResourceID(p),
getResourceID(atom.getArgument(1), assignment)
};
}
public String getRawTerm(int id) {
Resource[] res = new Resource[1];
try {
m_dict.getResources(new int[] {id}, 0, 1, res);
} catch (JRDFStoreException e) {
e.printStackTrace();
}
return getQuotedTerm(res[0]);
}
Map<String, Integer> predicateCache = new HashMap<String, Integer>();
public int getResourceID(DLPredicate p) {
Integer id;
String name = p instanceof AtomicConcept ? ((AtomicConcept) p).getIRI() : ((AtomicRole) p).getIRI();
if ((id = predicateCache.get(name)) != null) return id;
try {
predicateCache.put(name, id = resolveResource(name, Datatype.IRI_REFERENCE.value()));
} catch (JRDFStoreException e) {
e.printStackTrace();
}
return id;
}
public int getResourceID(String name) {
Integer id = null;
try {
id = resolveResource(name, Datatype.IRI_REFERENCE.value());
} catch (JRDFStoreException e) {
e.printStackTrace();
}
return id;
}
private int resolveResource(String name, int type) throws JRDFStoreException {
String[] lexicalForms = new String[] {name};
int[] types = new int[] {type};
return m_dict.resolveResources(lexicalForms, types)[0];
}
// Map<Term, Integer> termCache = new HashMap<Term, Integer>();
// Queue<Term> termQueue = new LinkedList<Term>();
private int getResourceID(Term arg, Map<Variable, Integer> assignment) {
if (arg instanceof Variable) return assignment.get(arg);
int id = -1;
if(termsCache.isKeyInCache(arg))
return ((int) termsCache.get(arg).getObjectValue());
// if (arg instanceof Individual) {
try {
if (arg instanceof Individual)
termsCache.put(new Element(arg, id = resolveResource(((Individual) arg).getIRI(), Datatype.IRI_REFERENCE.value())));
else if (arg instanceof Constant)
termsCache.put(new Element(arg, id = resolveResource(((Constant) arg).getLexicalForm(), getDatatypeID(((Constant) arg).getDatatypeURI()))));
} catch (JRDFStoreException e) {
e.printStackTrace();
System.exit(1);
}
// }
return id;
}
private static int getDatatypeID(String uri) {
if (uri.equals("http://www.w3.org/2001/XMLSchema#string")) return Datatype.XSD_STRING.value();
if (uri.equals("http://www.w3.org/1999/02/22-rdf-syntax-ns#PlainLiteral")) return Datatype.RDF_PLAIN_LITERAL.value();
if (uri.equals("http://www.w3.org/2001/XMLSchema#integer")) return Datatype.XSD_INTEGER.value();
if (uri.equals("http://www.w3.org/2001/XMLSchema#float")) return Datatype.XSD_FLOAT.value();
if (uri.equals("http://www.w3.org/2001/XMLSchema#double")) return Datatype.XSD_DOUBLE.value();
if (uri.equals("http://www.w3.org/2001/XMLSchema#boolean")) return Datatype.XSD_BOOLEAN.value();
if (uri.equals("http://www.w3.org/2001/XMLSchema#dateTime")) return Datatype.XSD_DATE_TIME.value();
if (uri.equals("http://www.w3.org/2001/XMLSchema#time")) return Datatype.XSD_TIME.value();
if (uri.equals("http://www.w3.org/2001/XMLSchema#date")) return Datatype.XSD_DATE.value();
if (uri.equals("http://www.w3.org/2001/XMLSchema#gYearMonth")) return Datatype.XSD_G_YEAR_MONTH.value();
if (uri.equals("http://www.w3.org/2001/XMLSchema#gYear")) return Datatype.XSD_G_YEAR.value();
if (uri.equals("http://www.w3.org/2001/XMLSchema#gMonthDay")) return Datatype.XSD_G_MONTH_DAY.value();
if (uri.equals("http://www.w3.org/2001/XMLSchema#gDay")) return Datatype.XSD_G_DAY.value();
if (uri.equals("http://www.w3.org/2001/XMLSchema#gMonth")) return Datatype.XSD_G_MONTH.value();
if (uri.equals("http://www.w3.org/2001/XMLSchema#duration")) return Datatype.XSD_DURATION.value();
return -1;
}
public int[] getResourceIDs(Collection<uk.ac.ox.cs.JRDFox.model.Individual> individuals) {
String[] str = new String[individuals.size()];
int[] types = new int[individuals.size()];
int index = 0;
for (uk.ac.ox.cs.JRDFox.model.Individual individual : individuals) {
types[index] = Datatype.IRI_REFERENCE.value();
str[index++] = individual.getIRI();
}
try {
return m_dict.resolveResources(str, types);
} catch (JRDFStoreException e) {
e.printStackTrace();
return null;
}
}
public static String getQuotedTerm(Resource r) {
if (r.m_datatype.equals(Datatype.IRI_REFERENCE))
return OWLHelper.addAngles(r.m_lexicalForm);
if (r.m_datatype.equals(Datatype.XSD_STRING) || r.m_datatype.equals(Datatype.RDF_PLAIN_LITERAL))
return "\"" + r.m_lexicalForm + "\"";
else
return "\"" + r.m_lexicalForm + "\"^^<" + r.m_datatype.getIRI() + ">";
}
}
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