/**
* Licensed to The Apereo Foundation under one or more contributor license
* agreements. See the NOTICE file distributed with this work for additional
* information regarding copyright ownership.
*
*
* The Apereo Foundation licenses this file to you under the Educational
* Community 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://opensource.org/licenses/ecl2.txt
*
* 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.
*
*/
package org.opencastproject.oaipmh.matterhorn;
import static org.opencastproject.util.UrlSupport.uri;
import static org.opencastproject.util.UrlSupport.url;
import org.opencastproject.mediapackage.MediaPackageParser;
import org.opencastproject.oaipmh.persistence.SearchResultItem;
import org.opencastproject.oaipmh.server.MetadataFormat;
import org.opencastproject.oaipmh.server.MetadataProvider;
import org.opencastproject.oaipmh.server.OaiPmhRepository;
import org.opencastproject.oaipmh.util.XmlGen;
import org.opencastproject.util.data.Option;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import java.net.URI;
import java.net.URL;
/**
* The Matterhorn metadata provider provides whole media packages.
*/
public class MatterhornMetadataProvider implements MetadataProvider {
private static final URL SCHEMA_URL = url("http://www.opencastproject.org/oai/matterhorn.xsd");
private static final URI NAMESPACE_URI = uri("http://www.opencastproject.org/oai/matterhorn");
private static final MetadataFormat METADATA_FORMAT = new MetadataFormat() {
@Override
public String getPrefix() {
return "matterhorn";
}
@Override
public URL getSchema() {
return SCHEMA_URL;
}
@Override
public URI getNamespace() {
return NAMESPACE_URI;
}
};
@Override
public MetadataFormat getMetadataFormat() {
return METADATA_FORMAT;
}
@Override
public Element createMetadata(OaiPmhRepository repository, final SearchResultItem item, Option<String> set) {
final Document mp = MediaPackageParser.getAsXmlDocument(item.getMediaPackage());
XmlGen xml = new XmlGen(Option.<String>none()) {
@Override
public Element create() {
return (Element) mp.getFirstChild();
}
};
return xml.create();
}
}