org.semanticweb.elk.reasoner.indexing.classes.UpdatingModifiableIndexedObjectFactory Maven / Gradle / Ivy
package org.semanticweb.elk.reasoner.indexing.classes;
/*-
* #%L
* ELK Reasoner Core
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* $HeadURL:$
* %%
* Copyright (C) 2011 - 2021 Department of Computer Science, University of Oxford
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* 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,
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* See the License for the specific language governing permissions and
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import org.semanticweb.elk.reasoner.indexing.conversion.ElkIndexingException;
import org.semanticweb.elk.reasoner.indexing.model.ModifiableIndexedAxiom;
import org.semanticweb.elk.reasoner.indexing.model.ModifiableIndexedObject;
import org.semanticweb.elk.reasoner.indexing.model.ModifiableOntologyIndex;
import org.semanticweb.elk.reasoner.indexing.model.OccurrenceIncrement;
import org.semanticweb.elk.reasoner.indexing.model.StructuralIndexedSubObject;
/**
* A {@link ModifiableIndexedObject.Factory} that constructs objects using
* another {@link ModifiableIndexedObject.Factory} and updates the occurrence
* counts for the constructed objects using the provided
* {@link OccurrenceIncrement}.
*
* @author "Yevgeny Kazakov"
*
*/
public class UpdatingModifiableIndexedObjectFactory
extends ModifiableIndexedObjectBaseFactory {
private final ModifiableOntologyIndex index_;
private final OccurrenceIncrement increment_;
public UpdatingModifiableIndexedObjectFactory(
final ModifiableOntologyIndex index,
final OccurrenceIncrement increment) {
this.index_ = index;
this.increment_ = increment;
}
@Override
protected > T filter(T input) {
T result = index_.resolve(input);
if (result == null) {
result = input;
}
if (!result.occurs()) {
index_.add(result);
}
if (!result.getIndexingAction(index_, increment_).apply())
throw new ElkIndexingException(
result.toString() + ": cannot update in Index for "
+ increment_ + " occurrences!");
if (!result.occurs()) {
index_.remove(result);
}
return result;
}
@Override
protected T filter(T input) {
if (increment_.totalIncrement > 0) {
for (int i = 0; i < increment_.totalIncrement; i++) {
if (!input.addOccurrence(index_))
throw new ElkIndexingException(
input.toString() + ": cannot be added to Index!");
}
}
if (increment_.totalIncrement < 0) {
for (int i = 0; i < -increment_.totalIncrement; i++) {
if (!input.removeOccurrence(index_))
throw new ElkIndexingException(input.toString()
+ ": cannot be removed from Index!");
}
}
return input;
}
}