/**
* The contents of this file are subject to the license and copyright
* detailed in the LICENSE and NOTICE files at the root of the source
* tree and available online at
*
* http://www.dspace.org/license/
*/
package org.dspace.harvest;
import org.apache.log4j.Logger;
import org.dspace.core.*;
import org.dspace.event.Consumer;
import org.dspace.event.Event;
/**
* Class for handling cleanup of harvest settings for collections and items
*
*
* @version $Revision: 3705 $
*
* @author Stuart Lewis
* @author Alexey Maslov
*/
public class HarvestConsumer implements Consumer
{
/** log4j logger */
private static Logger log = Logger.getLogger(HarvestConsumer.class);
/**
* Initialise the consumer
*
* @throws Exception
*/
public void initialize()
throws Exception
{
}
/**
* Consume the event
*
* @param context
* @param event
* @throws Exception
*/
public void consume(Context context, Event event)
throws Exception
{
int st = event.getSubjectType();
int et = event.getEventType();
int id = event.getSubjectID();
switch (st)
{
case Constants.ITEM:
if (et == Event.DELETE)
{
HarvestedItem hi = HarvestedItem.find(context, id);
if (hi != null) {
log.debug("Deleted item '" + id + "', also deleting associated harvested_item '" + hi.getOaiID() + "'.");
hi.delete();
hi.update();
}
else
{
log.debug("Deleted item '" + id + "' and the associated harvested_item.");
}
}
break;
case Constants.COLLECTION:
if (et == Event.DELETE)
{
HarvestedCollection hc = HarvestedCollection.find(context, id);
if (hc != null) {
log.debug("Deleted collection '" + id + "', also deleting associated harvested_collection '" + hc.getOaiSource() + ":" + hc.getOaiSetId() + "'.");
hc.delete();
hc.update();
}
else
{
log.debug("Deleted collection '" + id + "' and the associated harvested_collection.");
}
}
default:
log.warn("consume() got unrecognized event: " + event.toString());
}
}
/**
* Handle the end of the event
*
* @param ctx
* @throws Exception
*/
public void end(Context ctx)
throws Exception
{
}
/**
* Finish the event
*
* @param ctx
*/
public void finish(Context ctx)
{
}
}