/* * 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. * * See the NOTICE file distributed with this work for additional * information regarding copyright ownership. */ package org.topbraid.shacl.expr.lib; import java.util.Collections; import org.apache.jena.rdf.model.RDFNode; import org.apache.jena.sparql.util.FmtUtils; import org.apache.jena.util.iterator.ExtendedIterator; import org.apache.jena.util.iterator.WrappedIterator; import org.topbraid.shacl.expr.AbstractNodeExpression; import org.topbraid.shacl.expr.AtomicNodeExpression; import org.topbraid.shacl.expr.NodeExpressionContext; import org.topbraid.shacl.expr.NodeExpressionVisitor; public class ConstantTermExpression extends AbstractNodeExpression implements AtomicNodeExpression { public ConstantTermExpression(RDFNode term) { super(term); } @Override public ExtendedIterator<RDFNode> eval(RDFNode focusNode, NodeExpressionContext context) { return WrappedIterator.create(Collections.singletonList(getRDFNode()).iterator()); } @Override public String getFunctionalSyntax() { return FmtUtils.stringForNode(getRDFNode().asNode(), getRDFNode().getModel()); } @Override public String getTypeId() { return "constant"; } @Override public String toString() { return FmtUtils.stringForRDFNode(getRDFNode()); } @Override public void visit(NodeExpressionVisitor visitor) { visitor.visit(this); } }