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1   /*
2    * Licensed to The Apereo Foundation under one or more contributor license
3    * agreements. See the NOTICE file distributed with this work for additional
4    * information regarding copyright ownership.
5    *
6    *
7    * The Apereo Foundation licenses this file to you under the Educational
8    * Community License, Version 2.0 (the "License"); you may not use this file
9    * except in compliance with the License. You may obtain a copy of the License
10   * at:
11   *
12   *   http://opensource.org/licenses/ecl2.txt
13   *
14   * Unless required by applicable law or agreed to in writing, software
15   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
16   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
17   * License for the specific language governing permissions and limitations under
18   * the License.
19   *
20   */
21  package org.opencastproject.oaipmh.server;
22  
23  import org.opencastproject.oaipmh.OaiPmhConstants;
24  import org.opencastproject.oaipmh.persistence.SearchResultItem;
25  
26  import org.w3c.dom.Element;
27  
28  import java.util.Optional;
29  
30  /**
31   * Metadata provider for the mandatory <code>oai_dc</code> metadata prefix.
32   */
33  public class OaiDcMetadataProvider implements MetadataProvider {
34    @Override
35    public MetadataFormat getMetadataFormat() {
36      return OaiPmhConstants.OAI_DC_METADATA_FORMAT;
37    }
38  
39    @Override
40    public Element createMetadata(OaiPmhRepository repository, final SearchResultItem item, final Optional<String> set) {
41      return new OaiXmlGen(repository) {
42        @Override
43        public Element create() {
44          return dc(item, set);
45        }
46      }.create();
47    }
48  }