/* * 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.util; import java.io.StringWriter; import org.apache.jena.rdf.model.Model; import org.apache.jena.rdf.model.RDFWriter; import org.apache.jena.util.FileUtils; /** * A singleton that takes a Jena Model and prints it into a string. * Used to create comparable renderings of Models produced by test cases. * * @author Holger Knublauch */ public class ModelPrinter { private static ModelPrinter singleton = new ModelPrinter(); public static ModelPrinter get() { return singleton; } public static void set(ModelPrinter value) { singleton = value; } protected RDFWriter createRDFWriter(Model model) { return model.getWriter(FileUtils.langTurtle); } public String print(Model model) { StringWriter writer = new StringWriter(); RDFWriter w = createRDFWriter(model); w.write(model, writer, "http://example.org/random"); return writer.toString(); } }