| /* |
| * Copyright 2015 The Apache Software Foundation. |
| * |
| * 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.apache.clerezza.commons.rdf.impl.sparql; |
| |
| import java.util.Collection; |
| import java.util.Objects; |
| import org.apache.clerezza.commons.rdf.BlankNode; |
| import org.apache.clerezza.commons.rdf.BlankNodeOrIri; |
| import org.apache.clerezza.commons.rdf.ImmutableGraph; |
| import org.apache.clerezza.commons.rdf.Iri; |
| import org.apache.clerezza.commons.rdf.RdfTerm; |
| import org.apache.clerezza.commons.rdf.Triple; |
| import org.apache.clerezza.commons.rdf.impl.utils.TripleImpl; |
| import org.apache.clerezza.commons.rdf.impl.utils.simple.SimpleGraph; |
| |
| /** |
| * |
| * @author developer |
| */ |
| class SparqlBNode extends BlankNode { |
| |
| final static Iri internalBNodeId = new Iri("urn:x-internalid:fdmpoihdfw"); |
| |
| final ImmutableGraph context; |
| private final int isoDistinguisher; |
| |
| SparqlBNode(BlankNode node, Collection<Triple> context, int isoDistinguisher) { |
| this.isoDistinguisher = isoDistinguisher; |
| final SimpleGraph contextBuider = new SimpleGraph(); |
| for (Triple triple : context) { |
| BlankNodeOrIri subject = triple.getSubject(); |
| RdfTerm object = triple.getObject(); |
| contextBuider.add(new TripleImpl(subject.equals(node) ? internalBNodeId : subject, |
| triple.getPredicate(), |
| object.equals(node) ? internalBNodeId : object)); |
| } |
| this.context = contextBuider.getImmutableGraph(); |
| } |
| |
| @Override |
| public int hashCode() { |
| int hash = 7+isoDistinguisher; |
| hash = 61 * hash + Objects.hashCode(this.context); |
| return hash; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (obj == null) { |
| return false; |
| } |
| if (getClass() != obj.getClass()) { |
| return false; |
| } |
| final SparqlBNode other = (SparqlBNode) obj; |
| if (isoDistinguisher != other.isoDistinguisher) { |
| return false; |
| } |
| return Objects.equals(this.context, other.context); |
| } |
| } |