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The core ELK Reasoner package
/*
* #%L
* ELK Reasoner
* $Id:$
* $HeadURL:$
* %%
* Copyright (C) 2011 - 2013 Department of Computer Science, University of Oxford
* %%
* 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.
* #L%
*/
package org.semanticweb.elk.reasoner.taxonomy;
import java.util.Collection;
import java.util.Map;
import java.util.Set;
import org.semanticweb.elk.owl.interfaces.ElkEntity;
import org.semanticweb.elk.reasoner.taxonomy.hashing.InstanceTaxonomyEqualator;
import org.semanticweb.elk.reasoner.taxonomy.hashing.InstanceTaxonomyHasher;
import org.semanticweb.elk.reasoner.taxonomy.model.ComparatorKeyProvider;
import org.semanticweb.elk.reasoner.taxonomy.model.InstanceNode;
import org.semanticweb.elk.reasoner.taxonomy.model.InstanceTaxonomy;
import org.semanticweb.elk.reasoner.taxonomy.model.NodeStore;
import org.semanticweb.elk.reasoner.taxonomy.model.Taxonomy;
import org.semanticweb.elk.reasoner.taxonomy.model.TaxonomyNodeFactory;
import org.semanticweb.elk.reasoner.taxonomy.model.TypeNode;
import org.semanticweb.elk.util.collections.ArrayHashMap;
/**
* An {@link InstanceTaxonomy} consisting of a single {@link TypeNode} = top
* node = bottom node, which has a single {@link InstanceNode} containing all
* individuals of this taxonomy. Typically, this is used to represent an
* inconsistent {@link InstanceTaxonomy}.
*
* @author "Yevgeny Kazakov"
* @author Peter Skocovsky
*
* @param
* the type of objects stored in this taxonomy
* @param
* the type of instances of nodes of this taxonomy
* @param
* the type of the node of this taxonomy
*/
public class SingletoneInstanceTaxonomy>
extends SingletoneTaxonomy implements InstanceTaxonomy {
final Map> instanceNodeLookup;
/** provides keys that are used for hashing instead of the elkIndividuals */
private final ComparatorKeyProvider individualKeyProvider_;
// TODO: get rid of node factory, use instances
public SingletoneInstanceTaxonomy(
final ComparatorKeyProvider keyProvider,
final Collection allMembers,
final TaxonomyNodeFactory> nodeFactory,
final ComparatorKeyProvider individualKeyProvider) {
super(keyProvider, allMembers, nodeFactory);
this.individualKeyProvider_ = individualKeyProvider;
this.instanceNodeLookup = new ArrayHashMap>(
node.getAllInstanceNodes().size());
for (InstanceNode instanceNode : node.getAllInstanceNodes()) {
for (I instance : instanceNode) {
instanceNodeLookup.put(individualKeyProvider_.getKey(instance),
instanceNode);
}
}
}
@Override
public ComparatorKeyProvider getInstanceKeyProvider() {
return individualKeyProvider_;
}
@Override
public InstanceNode getInstanceNode(I elkObject) {
return instanceNodeLookup.get(individualKeyProvider_.getKey(elkObject));
}
@Override
public Set> getInstanceNodes() {
return node.instanceNodes;
}
@Override
public int hashCode() {
return InstanceTaxonomyHasher.hash(this);
}
@SuppressWarnings("unchecked")
@Override
public boolean equals(final Object obj) {
if (!(obj instanceof Taxonomy)) {
return false;
}
try {
return InstanceTaxonomyEqualator.equals(this, (Taxonomy) obj);
} catch (ClassCastException e) {
return false;
}
}
@Override
public boolean addInstanceListener(final NodeStore.Listener listener) {
// No events are ever fired.
return true;
}
@Override
public boolean removeInstanceListener(
final NodeStore.Listener listener) {
// No events are ever fired.
return true;
}
@Override
public boolean addInstanceListener(
final InstanceTaxonomy.Listener listener) {
// No events are ever fired.
return true;
}
@Override
public boolean removeInstanceListener(
final InstanceTaxonomy.Listener listener) {
// No events are ever fired.
return true;
}
}