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SHACL engine for Apache Jena
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/*
* 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 org.apache.jena.shacl.validation;
import static org.apache.jena.shacl.lib.ShLib.displayStr;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Objects;
import java.util.StringJoiner;
import java.util.function.Function;
import org.apache.jena.atlas.lib.CollectionUtils;
import org.apache.jena.graph.Node;
import org.apache.jena.graph.NodeFactory;
import org.apache.jena.graph.Triple;
import org.apache.jena.rdf.model.Model;
import org.apache.jena.rdf.model.RDFNode;
import org.apache.jena.rdf.model.Resource;
import org.apache.jena.riot.out.NodeFmtLib;
import org.apache.jena.shacl.ShaclException;
import org.apache.jena.shacl.engine.ShaclPaths;
import org.apache.jena.shacl.parser.Constraint;
import org.apache.jena.shacl.vocabulary.SHACLM;
import org.apache.jena.sparql.path.Path;
import org.apache.jena.sparql.util.ModelUtils;
import org.apache.jena.vocabulary.RDF;
/**
* A report entry.
*/
public class ReportEntry {
// 3.6 Validation Report
// 3.6.1 Validation Report (sh:ValidationReport)
// 3.6.1.1 Conforms (sh:conforms)
// 3.6.1.2 Result (sh:result)
// 3.6.1.3 Syntax Checking of Shapes Graph (sh:shapesGraphWellFormed)
// 3.6.2 Validation Result (sh:ValidationResult)
// 3.6.2.1 Focus node (sh:focusNode)
// 3.6.2.2 Path (sh:resultPath)
// 3.6.2.3 Value (sh:value)
// 3.6.2.4 Source (sh:sourceShape)
// 3.6.2.5 Constraint Component (sh:sourceConstraintComponent)
// 3.6.2.6 Details (sh:detail)
// 3.6.2.7 Message (sh:resultMessage)
// 3.6.2.8 Severity (sh:resultSeverity)
private Node focusNode = null;
private Path resultPath;
private Node value;
private Node source;
private Constraint constraint;
private Node sourceConstraint;
private Node sourceConstraintComponent;
private Severity severity;
private final Collection messages = new ArrayList<>(5);
private Node detail;
// Extras
private Triple triple;
private ReportEntry() {}
public static ReportEntry create() {
return new ReportEntry();
}
// sh:result [ a sh:ValidationResult ;
// sh:focusNode ex:x ;
// sh:resultMessage "Value does not have class http://example/ns#T" ;
// sh:resultSeverity sh:Violation ;
// sh:sourceConstraintComponent sh:ClassConstraintComponent ;
// sh:sourceShape shx:class_T ;
// sh:value ex:x
// ]
// sh:result [
// a sh:ValidationResult ;
// sh:resultSeverity sh:Violation ;
// sh:focusNode ex:Bob ;
// sh:resultPath ex:age ;
// sh:value "twenty two" ;
// sh:resultMessage "ex:age expects a literal of datatype xsd:integer." ;
// sh:sourceConstraintComponent sh:DatatypeConstraintComponent ;
// sh:sourceShape ex:PersonShape-age ;
// ]
public Node focusNode() { return focusNode; }
public ReportEntry focusNode(Node node) {
this.focusNode = node;
return this;
}
public Path resultPath() { return resultPath; }
public ReportEntry resultPath(Path path) {
this.resultPath = path;
return this;
}
public Triple triple() { return triple; }
public ReportEntry triple(Triple triple) {
this.triple = triple;
return this;
}
public Node value() { return value; }
public ReportEntry value(Node node) {
this.value = node;
return this;
}
public Node source() { return source; }
public ReportEntry source(Node node) {
this.source = node;
return this;
}
public Constraint constraint() { return constraint; }
public ReportEntry constraint(Constraint constraint) {
this.constraint = constraint;
if ( constraint != null )
sourceConstraintComponent(constraint.getComponent());
return this;
}
public Node sourceConstraint() { return sourceConstraint; }
public ReportEntry sourceConstraint(Node sourceConstraint) {
this.sourceConstraint = sourceConstraint;
return this;
}
public Node sourceConstraintComponent() { return sourceConstraintComponent; }
public ReportEntry sourceConstraintComponent(Node component) {
this.sourceConstraintComponent = component;
return this;
}
public Node detail() { return detail; }
public ReportEntry detail(Node n) {
detail = n;
return this;
}
public ReportEntry message(Node node) {
if ( node != null )
messages.add(node);
return this;
}
public ReportEntry message(String msg) {
if ( msg != null )
messages.add(NodeFactory.createLiteralString(msg));
return this;
}
public String message() {
if ( messages() != null && messages().size() == 1 )
return asString(CollectionUtils.oneElt(messages));
else {
StringJoiner sj = new StringJoiner(",", "[","]");
for ( Node n : messages )
sj.add(NodeFmtLib.displayStr(n));
return sj.toString();
}
}
public Collection messages() { return messages; }
private static String asString(Node message) {
if ( message == null )
return null;
if ( message.isLiteral() )
return message.getLiteralLexicalForm();
else if ( message.isURI() )
return message.getURI();
else
throw new ShaclException("Not a literal or URI: "+message);
}
public Severity severity() { return severity; }
public ReportEntry severity(Severity severity) {
this.severity = severity;
return this;
}
public ReportEntry severity(Node severity) {
this.severity = (severity == null) ? null : Severity.create(severity);
return this;
}
public void generate(Model model, Resource report) {
Resource entry = model.createResource();
entry.addProperty(RDF.type, SHACLM.ValidationResult);
report.addProperty(SHACLM.result, entry);
Function rdfNode = (gn)->ModelUtils.convertGraphNodeToRDFNode(gn, entry.getModel());
Function str = (s)->entry.getModel().createLiteral(s);
// Section 3.6.2
// The properties sh:focusNode, sh:resultSeverity and
// sh:sourceConstraintComponent are the only properties that are mandatory
// for all validation results.
Objects.requireNonNull(focusNode,"focus node");
//Objects.requireNonNull(message,"message");
Objects.requireNonNull(severity,"severity");
Objects.requireNonNull(sourceConstraintComponent, "sourceConstraintComponent");
entry.addProperty(SHACLM.focusNode, rdfNode.apply(focusNode));
entry.addProperty(SHACLM.resultSeverity, rdfNode.apply(severity.level()));
entry.addProperty(SHACLM.sourceConstraintComponent, rdfNode.apply(sourceConstraintComponent));
for ( Node msg : messages )
entry.addProperty(SHACLM.resultMessage, rdfNode.apply(msg));
if ( sourceConstraint != null )
entry.addProperty(SHACLM.sourceConstraint, rdfNode.apply(sourceConstraint));
if ( source != null )
entry.addProperty(SHACLM.sourceShape, rdfNode.apply(source));
if ( resultPath != null ) {
Node pn = ShaclPaths.pathToRDF(model.getGraph()::add, resultPath);
entry.addProperty(SHACLM.resultPath, rdfNode.apply(pn));
}
if ( value != null )
entry.addProperty(SHACLM.value, rdfNode.apply(value));
}
@Override
public String toString() {
if ( resultPath() != null )
return String.format("Node=%s\n Path=%s\n %s", displayStr(focusNode()), resultPath(), message());
else
return String.format("Node=%s\n %s",displayStr(focusNode()), message());
// if ( resultPath() != null )
// return String.format("Node=%s : Path=%s : %s", displayStr(focusNode()), resultPath(), message());
// else
// return String.format("Node=%s : %s",displayStr(focusNode()), message());
}
@Override
public int hashCode() {
return Objects.hash(constraint, detail, focusNode, messages, resultPath, severity, source, sourceConstraint,
sourceConstraintComponent, triple, value);
}
// Same mandatory fields.
public boolean same(ReportEntry obj) {
return Objects.equals(focusNode, obj.focusNode)
//&& Objects.equals(severity, obj.severity)
&& severity == obj.severity
&& Objects.equals(sourceConstraintComponent, obj.sourceConstraintComponent)
&& Objects.equals(resultPath, obj.resultPath);
}
@Override
public boolean equals(Object obj) {
if ( this == obj )
return true;
if ( obj == null )
return false;
if ( !(obj instanceof ReportEntry other) )
return false;
return Objects.equals(constraint, other.constraint)
&& Objects.equals(detail, other.detail)
&& Objects.equals(focusNode, other.focusNode)
&& Objects.equals(messages, other.messages)
&& Objects.equals(resultPath, other.resultPath)
&& severity == other.severity
&& Objects.equals(source, other.source)
&& Objects.equals(sourceConstraint, other.sourceConstraint)
&& Objects.equals(sourceConstraintComponent, other.sourceConstraintComponent)
&& Objects.equals(triple, other.triple)
&& Objects.equals(value, other.value);
}
}