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1   /**
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements. See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership. The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *     http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing, software
13   * distributed under the License is distributed on an "AS IS" BASIS,
14   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15   * See the License for the specific language governing permissions and
16   * limitations under the License.
17   */
18  package org.apache.commons.rdf.simple;
19  
20  import org.apache.commons.rdf.api.IRI;
21  
22  import java.net.URI;
23  
24  /**
25   * A simple implementation of IRI.
26   */
27  final class IRIImpl implements IRI, SimpleRDF.SimpleRDFTerm {
28  
29      private final String iri;
30  
31      public IRIImpl(final String iri) {
32          // should throw IllegalArgumentException on most illegal IRIs
33          URI.create(iri);
34          // NOTE: We don't keep the URI as it uses outdated RFC2396 and will get
35          // some IDNs wrong
36          this.iri = iri;
37      }
38  
39      @Override
40      public String getIRIString() {
41          return iri;
42      }
43  
44      @Override
45      public String ntriplesString() {
46          return "<" + getIRIString() + ">";
47      }
48  
49      @Override
50      public String toString() {
51          return ntriplesString();
52      }
53  
54      @Override
55      public boolean equals(final Object obj) {
56          if (this == obj) {
57              return true;
58          }
59          if (obj == null || !(obj instanceof IRI)) {
60              return false;
61          }
62          final IRI other = (IRI) obj;
63          return getIRIString().equals(other.getIRIString());
64      }
65  
66      @Override
67      public int hashCode() {
68          return iri.hashCode();
69      }
70  
71  }