AtomPubMetadataUIP.java

/**
 * Copyright 2008 The University of North Carolina at Chapel Hill
 *
 * 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 edu.unc.lib.dl.update;

import java.io.IOException;
import java.util.HashMap;

import org.apache.abdera.model.Entry;
import org.jdom2.Element;
import org.jdom2.JDOMException;

import edu.unc.lib.dl.fedora.PID;
import edu.unc.lib.dl.util.AtomPubMetadataParserUtil;
import edu.unc.lib.dl.util.ContentModelHelper;

/**
 * Update Information Package constructed from an Atom Pub entry object for metadata updating.
 * 
 * @author bbpennel
 * 
 */
public class AtomPubMetadataUIP extends MetadataUIP {

	public AtomPubMetadataUIP(PID pid, String user, UpdateOperation operation, Entry entry) throws UIPException {
		super(pid, user, operation);
		try { 
			incomingData = (HashMap<String, ?>) AtomPubMetadataParserUtil.extractDatastreams(entry, pid);
		} catch (IOException e) {
			throw new UIPException("Unable to extract datastreams from submitted metadata for " + pid.getPid(), e);
		} catch (JDOMException e) {
			throw new UIPException("Unable to extract datastreams from submitted metadata for " + pid.getPid(), e);
		}
		// If there are DC fields in the root entry document but no MODS, then add a null MODS stub for future population
		if (incomingData.containsKey(AtomPubMetadataParserUtil.ATOM_DC_DATASTREAM)
				&& !incomingData.containsKey(ContentModelHelper.Datastream.MD_DESCRIPTIVE.getName())) {
			incomingData.put(ContentModelHelper.Datastream.MD_DESCRIPTIVE.getName(), null);
		}
		originalData = new HashMap<String, Element>();
		modifiedData = new HashMap<String, Element>();
		this.message = entry.getSummary();
	}
}