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/* This file is part of the OWL API.
* The contents of this file are subject to the LGPL License, Version 3.0.
* Copyright 2014, The University of Manchester
*
* This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
* You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.
*
* Alternatively, the contents of this file may be used under the terms of the Apache License, Version 2.0 in which case, the provisions of the Apache License Version 2.0 are applicable instead of those above.
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */
package uk.ac.manchester.cs.owl.owlapi;
import static org.semanticweb.owlapi.util.OWLAPIPreconditions.checkNotNull;
import static org.semanticweb.owlapi.util.OWLAPIStreamUtils.asList;
import static org.semanticweb.owlapi.util.OWLAPIStreamUtils.compareIterators;
import static org.semanticweb.owlapi.util.OWLAPIStreamUtils.equalStreams;
import static org.semanticweb.owlapi.util.OWLAPIStreamUtils.streamFromSorted;
import java.io.Serializable;
import java.util.Collections;
import java.util.List;
import java.util.Set;
import java.util.TreeSet;
import java.util.function.Function;
import java.util.function.Predicate;
import java.util.stream.Stream;
import javax.annotation.Nullable;
import org.semanticweb.owlapi.io.ToStringRenderer;
import org.semanticweb.owlapi.model.OWLAnnotation;
import org.semanticweb.owlapi.model.OWLAnnotationProperty;
import org.semanticweb.owlapi.model.OWLAnonymousIndividual;
import org.semanticweb.owlapi.model.OWLClass;
import org.semanticweb.owlapi.model.OWLClassExpression;
import org.semanticweb.owlapi.model.OWLDataProperty;
import org.semanticweb.owlapi.model.OWLDatatype;
import org.semanticweb.owlapi.model.OWLEntity;
import org.semanticweb.owlapi.model.OWLNamedIndividual;
import org.semanticweb.owlapi.model.OWLObject;
import org.semanticweb.owlapi.model.OWLObjectProperty;
import org.semanticweb.owlapi.model.parameters.ConfigurationOptions;
import org.semanticweb.owlapi.util.OWLClassExpressionCollector;
import com.github.benmanes.caffeine.cache.CacheLoader;
import com.github.benmanes.caffeine.cache.Caffeine;
import com.github.benmanes.caffeine.cache.LoadingCache;
/**
* @author Matthew Horridge, The University Of Manchester, Bio-Health Informatics Group
* @since 2.0.0
*/
public abstract class OWLObjectImpl
implements OWLObject, Serializable, HasIncrementalSignatureGenerationSupport {
/**
* a convenience reference for an empty annotation set, saves on typing.
*/
protected static final Set NO_ANNOTATIONS = Collections.emptySet();
// @formatter:off
protected static LoadingCache> signatures = build(key -> key.addSignatureEntitiesToSet(new TreeSet<>()));
protected static LoadingCache> anonCaches = build(key -> key.addAnonymousIndividualsToSet(new TreeSet<>()));
protected static LoadingCache> classesSignatures = build(key -> cacheSig(key, OWLEntity::isOWLClass, OWLEntity::asOWLClass));
protected static LoadingCache> dataPropertySignatures = build(key -> cacheSig(key, OWLEntity::isOWLDataProperty, OWLEntity::asOWLDataProperty));
protected static LoadingCache> objectPropertySignatures = build(key -> cacheSig(key, OWLEntity::isOWLObjectProperty, OWLEntity::asOWLObjectProperty));
protected static LoadingCache> datatypeSignatures = build(key -> cacheSig(key, OWLEntity::isOWLDatatype, OWLEntity::asOWLDatatype));
protected static LoadingCache> individualSignatures = build(key -> cacheSig(key, OWLEntity::isOWLNamedIndividual, OWLEntity::asOWLNamedIndividual));
protected static LoadingCache> annotationPropertiesSignatures = build(key -> cacheSig(key, OWLEntity::isOWLAnnotationProperty, OWLEntity::asOWLAnnotationProperty));
// @formatter:on
static LoadingCache build(CacheLoader c) {
return Caffeine.newBuilder().weakKeys().maximumSize(size()).build(c);
}
protected static long size() {
return ConfigurationOptions.CACHE_SIZE.getValue(Integer.class, Collections.emptyMap())
.longValue();
}
static List cacheSig(OWLObject o, Predicate p, Function f) {
return asList(o.signature().filter(p).map(f));
}
protected int hashCode = 0;
@Override
public Stream anonymousIndividuals() {
return anonCaches.get(this).stream();
}
@Override
public Stream signature() {
return signatures.get(this).stream();
}
@Override
public boolean containsEntityInSignature(OWLEntity owlEntity) {
return signatures.get(this).contains(owlEntity);
}
@Override
public Stream classesInSignature() {
return streamFromSorted(classesSignatures.get(this));
}
@Override
public Stream dataPropertiesInSignature() {
return streamFromSorted(dataPropertySignatures.get(this));
}
@Override
public Stream objectPropertiesInSignature() {
return streamFromSorted(objectPropertySignatures.get(this));
}
@Override
public Stream individualsInSignature() {
return streamFromSorted(individualSignatures.get(this));
}
@Override
public Stream datatypesInSignature() {
return streamFromSorted(datatypeSignatures.get(this));
}
@Override
public Stream annotationPropertiesInSignature() {
return streamFromSorted(annotationPropertiesSignatures.get(this));
}
@Override
public Stream nestedClassExpressions() {
return accept(new OWLClassExpressionCollector()).stream();
}
@Override
public boolean equals(@Nullable Object obj) {
if (obj == this) {
return true;
}
if (obj == null) {
return false;
}
if (!(obj instanceof OWLObject)) {
return false;
}
OWLObject other = (OWLObject) obj;
if (typeIndex() != other.typeIndex() || hashCode() != other.hashCode()) {
return false;
}
return equalStreams(components(), other.components());
}
@Override
public int hashCode() {
if (hashCode == 0) {
hashCode = initHashCode();
}
return hashCode;
}
@Override
public int compareTo(@Nullable OWLObject o) {
checkNotNull(o);
assert o != null;
int diff = Integer.compare(typeIndex(), o.typeIndex());
if (diff != 0) {
return diff;
}
return compareIterators(components().iterator(), o.components().iterator());
}
protected int compareAnnotations(List l1, List l2) {
int i = 0;
for (; i < l1.size() && i < l2.size(); i++) {
int diff = l1.get(i).compareTo(l2.get(i));
if (diff != 0) {
return diff;
}
}
if (i < l2.size()) {
// l1 is shorter and a sublist of l2
return -1;
}
if (i < l1.size()) {
// l2 is shorter and a sublist of l1
return 1;
}
// lists are identical
return 0;
}
@Override
public String toString() {
return ToStringRenderer.getRendering(this);
}
}
