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PluralAnnotationPropertyStrategy.java
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PluralAnnotationPropertyStrategy.java
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/**
* Copyright (C) 2020 Czech Technical University in Prague
* <p>
* 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.
* <p>
* 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/>.
*/
package cz.cvut.kbss.jopa.oom;
import cz.cvut.kbss.jopa.model.MultilingualString;
import cz.cvut.kbss.jopa.model.descriptors.Descriptor;
import cz.cvut.kbss.jopa.model.metamodel.AbstractPluralAttribute;
import cz.cvut.kbss.jopa.model.metamodel.EntityType;
import cz.cvut.kbss.jopa.oom.converter.ToLexicalFormConverter;
import cz.cvut.kbss.jopa.utils.IdentifierTransformer;
import cz.cvut.kbss.ontodriver.model.Assertion;
import cz.cvut.kbss.ontodriver.model.Axiom;
import cz.cvut.kbss.ontodriver.model.NamedResource;
import cz.cvut.kbss.ontodriver.model.Value;
import java.util.Collection;
import java.util.Collections;
import java.util.Objects;
import java.util.Set;
import java.util.function.Function;
import java.util.stream.Collectors;
class PluralAnnotationPropertyStrategy<X> extends PluralDataPropertyStrategy<X> {
PluralAnnotationPropertyStrategy(EntityType<X> et, AbstractPluralAttribute<? super X, ?, ?> att,
Descriptor attributeDescriptor, EntityMappingHelper mapper) {
super(et, att, attributeDescriptor, mapper);
}
@Override
void addValueFromAxiom(Axiom<?> ax) {
final Object value = ax.getValue().getValue();
if (isValidRange(value)) {
values.add(toAttributeValue(value));
} else if (value instanceof NamedResource && IdentifierTransformer.isValidIdentifierType(elementType)) {
values.add(IdentifierTransformer
.transformToIdentifier(ToLexicalFormConverter.INSTANCE.convertToAttribute(value), elementType));
}
}
@Override
void buildAxiomValuesFromInstance(X instance, AxiomValueGatherer valueBuilder) {
final Object value = extractFieldValueFromInstance(instance);
assert value instanceof Collection || value == null;
final Collection<?> valueCollection = (Collection<?>) value;
if (valueCollection == null || valueCollection.isEmpty()) {
valueBuilder.addValue(createAssertion(), Value.nullValue(), getAttributeWriteContext());
} else {
final Function<Object, Collection<Value<?>>> mapper;
if (IdentifierTransformer.isValidIdentifierType(elementType) && !elementType
.isAssignableFrom(String.class)) {
mapper = v -> Collections
.singleton(new Value<>(NamedResource.create(IdentifierTransformer.valueAsUri(v))));
} else {
mapper = v -> v instanceof MultilingualString ?
SingularMultilingualStringFieldStrategy.translationsToLangStrings(
(MultilingualString) v) : Collections.singleton(new Value<>(toAxiomValue(v)));
}
final Set<Value<?>> assertionValues =
valueCollection.stream().filter(Objects::nonNull).map(mapper).flatMap(Collection::stream)
.collect(Collectors.toSet());
valueBuilder.addValues(createAssertion(), assertionValues, getAttributeWriteContext());
}
}
@Override
Assertion createAssertion() {
return Assertion
.createAnnotationPropertyAssertion(attribute.getIRI().toURI(), getLanguage(), attribute.isInferred());
}
}