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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.util;
import static org.semanticweb.owlapi.util.OWLAPIPreconditions.checkNotNull;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;
import java.util.stream.Stream;
import javax.annotation.Nullable;
import org.semanticweb.owlapi.io.XMLUtils;
import org.semanticweb.owlapi.model.IRI;
import org.semanticweb.owlapi.model.OWLEntity;
import org.semanticweb.owlapi.model.OWLRuntimeException;
import org.semanticweb.owlapi.model.PrefixManager;
import org.semanticweb.owlapi.vocab.Namespaces;
/**
* @author Matthew Horridge, The University Of Manchester, Information Management Group
* @since 2.2.0
*/
public class DefaultPrefixManager
implements PrefixManager, ShortFormProvider, IRIShortFormProvider {
private final Map reverseprefix2NamespaceMap;
// XXX config
private Map prefix2NamespaceMap;
private StringComparator comparator;
/**
* @param defaultPrefix default prefix
*/
public DefaultPrefixManager(@Nullable String defaultPrefix) {
this(null, null, defaultPrefix);
}
/**
* @param pm the prefix manager to copy
* @param c comparator to sort prefixes
* @param defaultPrefix default prefix
*/
public DefaultPrefixManager(@Nullable PrefixManager pm, @Nullable StringComparator c,
@Nullable String defaultPrefix) {
comparator = c == null ? new StringLengthComparator() : c;
prefix2NamespaceMap = new TreeMap<>(comparator);
reverseprefix2NamespaceMap = new TreeMap<>(comparator);
setupDefaultPrefixes();
if (pm != null) {
copyPrefixesFrom(pm);
}
if (defaultPrefix != null) {
setDefaultPrefix(defaultPrefix);
}
}
/**
* Default constructor setting the comparator to string lenght comparator.
*/
public DefaultPrefixManager() {
this(null, null, null);
}
@Override
public StringComparator getPrefixComparator() {
return comparator;
}
@Override
public void setPrefixComparator(StringComparator comparator) {
checkNotNull(comparator, "comparator cannot be null");
this.comparator = comparator;
Map p = prefix2NamespaceMap;
prefix2NamespaceMap = new TreeMap<>(comparator);
prefix2NamespaceMap.putAll(p);
}
@Override
public void clear() {
prefix2NamespaceMap.clear();
reverseprefix2NamespaceMap.clear();
}
@Override
public Stream prefixNames() {
return prefix2NamespaceMap.keySet().stream();
}
private void setupDefaultPrefixes() {
setPrefix("owl:", Namespaces.OWL.toString());
setPrefix("rdfs:", Namespaces.RDFS.toString());
setPrefix("rdf:", Namespaces.RDF.toString());
setPrefix("xsd:", Namespaces.XSD.toString());
setPrefix("xml:", Namespaces.XML.toString());
}
@Override
@Nullable
public String getPrefixIRI(IRI iri) {
String prefix = reverseprefix2NamespaceMap.get(iri.getNamespace());
if (prefix == null) {
String iriString = iri.toString();
String prefixed = null;
for (String s : reverseprefix2NamespaceMap.keySet()) {
if (iriString.startsWith(s) && XMLUtils.isQName(iriString, s.length())) {
prefix = reverseprefix2NamespaceMap.get(s);
prefixed = iriString.replace(s, prefix);
}
}
if (prefixed != null && XMLUtils.isQName(prefixed)) {
return prefixed;
}
}
if (prefix == null) {
return null;
}
return iri.prefixedBy(prefix);
}
@Override
public String getPrefixIRIIgnoreQName(IRI iri) {
String prefix = reverseprefix2NamespaceMap.get(iri.getNamespace());
if (prefix == null) {
String iriString = iri.toString();
String prefixed = null;
for (String s : reverseprefix2NamespaceMap.keySet()) {
if (iriString.startsWith(s) && XMLUtils.isQName(iriString, s.length())) {
prefix = reverseprefix2NamespaceMap.get(s);
prefixed = iriString.replace(s, prefix);
}
}
if (prefixed != null) {
return prefixed;
}
}
if (prefix == null) {
return null;
}
return iri.prefixedBy(prefix);
}
@Override
@Nullable
public String getDefaultPrefix() {
return prefix2NamespaceMap.get(":");
}
@Override
public void setDefaultPrefix(@Nullable String defaultPrefix) {
String prefixToUnregister = prefix2NamespaceMap.get(":");
if (prefixToUnregister != null) {
prefix2NamespaceMap.remove(":");
reverseprefix2NamespaceMap.remove(prefixToUnregister, ":");
}
if (defaultPrefix == null) {
return;
}
prefix2NamespaceMap.put(":", defaultPrefix);
if (!reverseprefix2NamespaceMap.containsKey(defaultPrefix)) {
reverseprefix2NamespaceMap.put(defaultPrefix, ":");
}
}
@Override
public boolean containsPrefixMapping(String prefixName) {
return prefix2NamespaceMap.get(prefixName) != null;
}
@Override
public void copyPrefixesFrom(PrefixManager from) {
copyPrefixesFrom(from.getPrefixName2PrefixMap());
}
@Override
public void copyPrefixesFrom(Map from) {
from.forEach(this::setPrefix);
}
@Override
public IRI getIRI(String prefixIRI) {
if (prefixIRI.startsWith("<")) {
return IRI.create(prefixIRI.substring(1, prefixIRI.length() - 1));
}
int sep = prefixIRI.indexOf(':');
if (sep == -1) {
if (getDefaultPrefix() == null) {
return IRI.create(prefixIRI);
}
return IRI.create(getDefaultPrefix() + prefixIRI);
} else {
String prefixName = prefixIRI.substring(0, sep + 1);
if (!containsPrefixMapping(prefixName)) {
throw new OWLRuntimeException(
"Prefix not registered for prefix name: " + prefixName);
}
String prefix = getPrefix(prefixName);
String localName = prefixIRI.substring(sep + 1);
return IRI.create(prefix, localName);
}
}
@Override
public Map getPrefixName2PrefixMap() {
return Collections.unmodifiableMap(prefix2NamespaceMap);
}
@Override
@Nullable
public String getPrefix(String prefixName) {
return prefix2NamespaceMap.get(prefixName);
}
@Override
public void setPrefix(String inputPrefixName, String prefix) {
checkNotNull(inputPrefixName, "prefixName cannot be null");
checkNotNull(prefix, "prefix cannot be null");
String _prefixName = inputPrefixName;
if (!_prefixName.endsWith(":")) {
_prefixName += ":";
}
prefix2NamespaceMap.put(_prefixName, prefix);
reverseprefix2NamespaceMap.put(prefix, _prefixName);
}
@Override
public void unregisterNamespace(String namespace) {
List toRemove = new ArrayList<>();
prefix2NamespaceMap.forEach((k, v) -> {
if (v.equals(namespace)) {
toRemove.add(k);
}
});
reverseprefix2NamespaceMap.remove(namespace);
prefix2NamespaceMap.keySet().removeAll(toRemove);
}
@Override
public String getShortForm(IRI iri) {
String sf = getPrefixIRI(iri);
if (sf == null) {
return iri.toQuotedString();
} else {
return sf;
}
}
@Override
public String getShortForm(OWLEntity entity) {
return getShortForm(entity.getIRI());
}
}
