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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *  http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  
18  package org.apache.any23.extractor.xpath;
19  
20  import org.eclipse.rdf4j.model.IRI;
21  import org.eclipse.rdf4j.model.impl.SimpleValueFactory;
22  
23  /**
24   * Represents a <i>Quad</i> predicate <i>template</i>.
25   *
26   * @author Michele Mostarda (mostarda@fbk.eu)
27   */
28  public class TemplatePredicate extends Term<IRI> {
29  
30      /**
31       * Constructor.
32       *
33       * @param value internal value.
34       * @param isVar if <code>true</code> it the given <code>value</code>
35       *              will be resolved with the variable value.
36       */
37      public TemplatePredicate(String value, boolean isVar) {
38          super(value, isVar);
39      }
40  
41      @Override
42      protected IRI getValueInternal(String value) {
43          try {
44              return SimpleValueFactory.getInstance().createIRI(value);
45          } catch (IllegalArgumentException iae) {
46              throw new IllegalArgumentException(
47                      String.format("Expected a valid IRI for predicate template, found '%s'", value),
48                      iae
49              );
50          }
51      }
52  
53      @Override
54      public String toString() {
55          return "<" + super.toString() + ">";
56      }
57  
58  }