LocalMetadataWrapper.java
/*
* Copyright (c) 2007-2017 MetaSolutions AB
*
* Licensed under the Apache 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://www.apache.org/licenses/LICENSE-2.0
*
* 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.entrystore.impl;
import org.eclipse.rdf4j.model.Model;
import org.eclipse.rdf4j.model.impl.LinkedHashModel;
import org.entrystore.Entry;
import org.entrystore.Metadata;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.net.URI;
public class LocalMetadataWrapper implements Metadata {
Logger log = LoggerFactory.getLogger(LocalMetadataWrapper.class);
Entry entry;
URI refEntryURI;
public LocalMetadataWrapper(Entry entry) {
this.entry = entry;
Entry e = entry.getRepositoryManager().getContextManager().getEntry(entry.getExternalMetadataURI());
if (e != null) {
refEntryURI = e.getEntryURI();
} else {
log.warn("Could not find Entry with external MD URI: " + entry.getExternalMetadataURI());
}
}
public Model getGraph() {
Entry e = null;
if (refEntryURI != null) {
e = ((ContextImpl) entry.getContext()).getCache().getByEntryURI(refEntryURI);
}
if (e == null) {
e = entry.getRepositoryManager().getContextManager().getEntry(entry.getExternalMetadataURI());
}
if (e != null && e.getLocalMetadata() != null) {
return e.getLocalMetadata().getGraph();
} else {
log.warn("Entry is null, returning an empty graph");
return new LinkedHashModel();
}
}
public URI getResourceURI() {
return entry.getResourceURI();
}
public URI getURI() {
return entry.getExternalMetadataURI();
}
public boolean isCached() {
return true;
}
public void setGraph(Model graph) {
throw new UnsupportedOperationException();
}
}