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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 org.semanticweb.owlapi.model;
import static org.semanticweb.owlapi.util.OWLAPIStreamUtils.asUnorderedSet;
import java.io.Serializable;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.Optional;
import java.util.Set;
import java.util.stream.Stream;
import org.semanticweb.owlapi.formats.PrefixDocumentFormat;
import org.semanticweb.owlapi.io.OWLOntologyLoaderMetaData;
import org.semanticweb.owlapi.model.parameters.Imports;
import com.google.common.collect.LinkedListMultimap;
import com.google.common.collect.Multimap;
/**
* Represents the concrete representation format of an ontology. The equality of an ontology format
* is defined by the equals and hashCode method (not its identity).
*
* @author Matthew Horridge, The University Of Manchester, Bio-Health Informatics Group
* @since 2.0.0
*/
public interface OWLDocumentFormat extends Serializable {
/**
* Determines if a declaration axiom (type triple) needs to be added to the specified ontology
* for the given entity.
*
* @param entity The entity
* @param ontology The ontology.
* @return {@code false} if the entity is built in. {@code false} if the ontology doesn't
* contain the entity in its signature. {@code false} if the entity is already declared
* in the imports closure of the ontology. {@code false} if the transitive imports does
* not contain the ontology but the entity is contained in the signature of one of the
* imported ontologies, {@code true} if none of the previous conditions are met.
*/
static boolean isMissingType(OWLEntity entity, OWLOntology ontology) {
// We don't need to declare built in entities
if (entity.isBuiltIn()) {
return false;
}
// If the ontology doesn't contain the entity in its signature then it
// shouldn't declare it
if (!ontology.containsEntityInSignature(entity)) {
return false;
}
if (ontology.isDeclared(entity, Imports.INCLUDED)) {
return false;
}
Set transitiveImports = asUnorderedSet(ontology.imports());
if (!transitiveImports.contains(ontology)) {
// See if the entity should be declared in an imported ontology
for (OWLOntology importedOntology : transitiveImports) {
if (importedOntology.containsEntityInSignature(entity)) {
// Leave it for that ontology to declare the entity
return false;
}
}
}
return true;
}
/**
* @param signature signature for the ontology
* @param punnedEntities the set of entities that are known already to be punned
* @param add true if missing declarations should be added. If false, no declarations will be
* added.
* @return collection of IRIS used in illegal punnings
*/
static Collection determineIllegalPunnings(boolean add, Stream signature,
Collection punnedEntities) {
if (!add) {
return Collections.emptySet();
}
// determine what entities are illegally punned
Multimap> punnings = LinkedListMultimap.create();
// disregard individuals as they do not give raise to illegal
// punnings; only keep track of punned entities, ignore the rest
signature.filter(e -> !e.isOWLNamedIndividual() && punnedEntities.contains(e.getIRI()))
.forEach(e -> punnings.put(e.getIRI(), e.getEntityType()));
return computeIllegals(punnings);
}
/**
* @param punnings input punnings
* @return illegal punnings
*/
static Collection computeIllegals(Multimap> punnings) {
Collection illegals = new HashSet<>();
for (IRI i : punnings.keySet()) {
Collection> puns = punnings.get(i);
if (puns.contains(EntityType.OBJECT_PROPERTY)
&& puns.contains(EntityType.ANNOTATION_PROPERTY)) {
illegals.add(i);
} else if (puns.contains(EntityType.DATA_PROPERTY)
&& puns.contains(EntityType.ANNOTATION_PROPERTY)) {
illegals.add(i);
} else if (puns.contains(EntityType.DATA_PROPERTY)
&& puns.contains(EntityType.OBJECT_PROPERTY)) {
illegals.add(i);
} else if (puns.contains(EntityType.DATATYPE) && puns.contains(EntityType.CLASS)) {
illegals.add(i);
}
}
return illegals;
}
/**
* Determines if untyped entities should automatically be typed (declared) during rendering.
* (This is a hint to an RDF renderer - the reference implementation will respect this).
*
* @return {@code true} if untyped entities should automatically be typed during rendering,
* otherwise {@code false}.
*/
boolean isAddMissingTypes();
/**
* Determines if untyped entities should automatically be typed during rendering. By default
* this is true.
*
* @param addMissingTypes {@code true} if untyped entities should automatically be typed during
* rendering, otherwise {@code false}.
*/
void setAddMissingTypes(boolean addMissingTypes);
/**
* @param key key for the new entry
* @param value value for the new entry
*/
void setParameter(Serializable key, Serializable value);
/**
* @param key key for the new entry
* @param defaultValue value for the new entry
* @param type
* @return the value
*/
T getParameter(Serializable key, T defaultValue);
/**
* Determines if this format is an instance of a format that uses prefixes to shorted IRIs.
*
* @return {@code true} if this format is an instance of
* {@link org.semanticweb.owlapi.formats.PrefixDocumentFormat} other wise {@code false}.
*/
default boolean isPrefixOWLDocumentFormat() {
return false;
}
/**
* If this format is an instance of {@link org.semanticweb.owlapi.formats.PrefixDocumentFormat}
* then this method will obtain it as a
* {@link org.semanticweb.owlapi.formats.PrefixDocumentFormat}.
*
* @return This format as a more specific
* {@link org.semanticweb.owlapi.formats.PrefixDocumentFormat}.
* @throws ClassCastException if this format is not an instance of
* {@link org.semanticweb.owlapi.formats.PrefixDocumentFormat}
*/
default PrefixDocumentFormat asPrefixOWLDocumentFormat() {
if (isPrefixOWLDocumentFormat()) {
return (PrefixDocumentFormat) this;
}
throw new ClassCastException(getClass().getName() + " is not a Prefix Document Format");
}
/**
* If this format describes an ontology that was loaded from some ontology document (rather than
* created programmatically) there may be some meta data about the loading process. Subclasses
* of {@code OWLDocumentFormat} will provide accessors etc. to details pertaining to the meta
* data about loading.
*
* @return An object containing the meta data about loading. .
*/
Optional getOntologyLoaderMetaData();
/**
* Sets the meta data for the ontology loader.
*
* @param loaderMetaData The metadata.
* @throws NullPointerException if the argument is {@code null}.
*/
void setOntologyLoaderMetaData(OWLOntologyLoaderMetaData loaderMetaData);
/**
* @return A unique key for this format.
*/
String getKey();
/**
* Determines whether this format contains textual output, as opposed to binary output.
*
* @return True if this format represents a textual format, as opposed to a binary format.
* Defaults to true if not overridden.
*/
boolean isTextual();
/**
* Some formats support relative IRIs in output (all parsers must create axioms with absolute
* IRIs, but some formats allow relative IRIs, with the understanding that in parsing the base
* IRI will be used to convert them to absolute IRIs). If a format does not support relative
* IRIs, the renderer needs to know to output absolute IRIs. This defaults to true as this keeps
* the existing behaviour.
*
* @return true if relative IRIs are supported.
*/
default boolean supportsRelativeIRIs() {
return true;
}
}
