/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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
///////////////
package org.apache.jena.ontology.impl;
// Imports
///////////////
import org.apache.jena.enhanced.* ;
import org.apache.jena.graph.* ;
import org.apache.jena.ontology.* ;
import org.apache.jena.rdf.model.Resource ;
/**
* <p>
* Implementation of the someValuesFrom restriction abstraction.
* </p>
*/
public class SomeValuesFromRestrictionImpl
extends RestrictionImpl
implements SomeValuesFromRestriction
{
// Constants
//////////////////////////////////
// Static variables
//////////////////////////////////
/**
* A factory for generating SomeValuesFromRestriction facets from nodes in enhanced graphs.
* Note: should not be invoked directly by user code: use
* {@link org.apache.jena.rdf.model.RDFNode#as as()} instead.
*/
@SuppressWarnings("hiding")
public static Implementation factory = new Implementation() {
@Override
public EnhNode wrap( Node n, EnhGraph eg ) {
if (canWrap( n, eg )) {
return new SomeValuesFromRestrictionImpl( n, eg );
}
else {
throw new ConversionException( "Cannot convert node " + n + " to SomeValuesFromRestriction");
}
}
@Override
public boolean canWrap( Node node, EnhGraph eg ) {
// node will support being a SomeValuesFromRestriction facet if it has rdf:type owl:Restriction or equivalent
// and the combination of owl:onProperty and owl:someValuesFrom (or equivalents)
Profile profile = (eg instanceof OntModel) ? ((OntModel) eg).getProfile() : null;
return (profile != null) && profile.isSupported( node, eg, SomeValuesFromRestriction.class );
}
};
// Instance variables
//////////////////////////////////
// Constructors
//////////////////////////////////
/**
* <p>
* Construct a hasValue restriction node represented by the given node in the given graph.
* </p>
*
* @param n The node that represents the resource
* @param g The enh graph that contains n
*/
public SomeValuesFromRestrictionImpl( Node n, EnhGraph g ) {
super( n, g );
}
// External signature methods
//////////////////////////////////
// someValuesFrom
/**
* <p>Assert that this restriction restricts the property to have at least one value
* that is a member of the given class. Any existing statements for <code>someValuesFrom</code>
* will be removed.</p>
* @param cls The class that at least one value of the property must belong to
* @exception ProfileException If the {@link Profile#SOME_VALUES_FROM()} property is not supported in the current language profile.
*/
@Override
public void setSomeValuesFrom( Resource cls ) {
setPropertyValue( getProfile().SOME_VALUES_FROM(), "SOME_VALUES_FROM", cls );
}
/**
* <p>Answer the resource characterising the constraint on at least one value of the restricted property. This may be
* a class, the URI of a concrete datatype, a DataRange object or the URI rdfs:Literal.</p>
* @return A resource, which will have been pre-converted to the appropriate Java value type
* ({@link OntClass} or {@link DataRange}) if appropriate.
* @exception ProfileException If the {@link Profile#SOME_VALUES_FROM()} property is not supported in the current language profile.
*/
@Override
public Resource getSomeValuesFrom() {
checkProfile( getProfile().SOME_VALUES_FROM(), "SOME_VALUES_FROM" );
Resource r = (Resource) getRequiredProperty( getProfile().SOME_VALUES_FROM() ).getObject();
boolean currentStrict = ((OntModel) getModel()).strictMode();
((OntModel) getModel()).setStrictMode( true );
try {
if (r.canAs( OntClass.class )) {
// all values from a class
return r.as( OntClass.class );
}
else if (r.canAs( DataRange.class )) {
// all values from a given data range
return r.as( DataRange.class );
}
else {
// must be a datatype ID or rdfs:Literal
return r;
}
}
finally {
((OntModel) getModel()).setStrictMode( currentStrict );
}
}
/**
* <p>Answer true if this property restriction has the given class as the class to which at least one
* value of the restricted property must belong.</p>
* @param cls A class to test
* @return True if the given class is the class to which at least one value must belong
* @exception ProfileException If the {@link Profile#SOME_VALUES_FROM()} property is not supported in the current language profile.
*/
@Override
public boolean hasSomeValuesFrom( Resource cls ) {
return hasPropertyValue( getProfile().SOME_VALUES_FROM(), "SOME_VALUES_FROM", cls );
}
/**
* <p>Remove the statement that this restriction has some values from the given class among
* the values for the restricted property. If this statement
* is not true of the current model, nothing happens.</p>
* @param cls A Resource the denotes the class to be removed from this restriction
*/
@Override
public void removeSomeValuesFrom( Resource cls ) {
removePropertyValue( getProfile().SOME_VALUES_FROM(), "SOME_VALUES_FROM", cls );
}
// Internal implementation methods
//////////////////////////////////
//==============================================================================
// Inner class definitions
//==============================================================================
}