View Javadoc

    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 java.util.Locale;
    21
    22  import org.eclipse.rdf4j.model.IRI;
    23  import org.eclipse.rdf4j.model.impl.SimpleValueFactory;
    24
    25  /**
    26   * Represents a <i>Quad</i> predicate <i>template</i>.
    27   *
    28   * @author Michele Mostarda (mostarda@fbk.eu)
    29   */
    30  public class TemplatePredicate extends Term<IRI> {
    31
    32      /**
    33       * Constructor.
    34       *
    35       * @param value
    36       *            internal value.
    37       * @param isVar
    38       *            if <code>true</code> it the given <code>value</code> will be resolved with the variable value.
    39       */
    40      public TemplatePredicate(String value, boolean isVar) {
    41          super(value, isVar);
    42      }
    43
    44      @Override
    45      protected IRI getValueInternal(String value) {
    46          try {
    47              return SimpleValueFactory.getInstance().createIRI(value);
    48          } catch (IllegalArgumentException iae) {
    49              throw new IllegalArgumentException(
    50                      String.format(Locale.ROOT, "Expected a valid IRI for predicate template, found '%s'", value), iae);
    51          }
    52      }
    53
    54      @Override
    55      public String toString() {
    56          return "<" + super.toString() + ">";
    57      }
    58
    59  }