/**
* 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.checker;
import org.apache.log4j.Logger;
import org.dspace.core.Context;
import org.dspace.event.Consumer;
import org.dspace.event.Event;
/**
* Class for removing Checker data for a Bitstreams based on deletion events.
*
* @version $Revision$
*/
public class CheckerConsumer implements Consumer
{
/** log4j logger */
private static Logger log = Logger.getLogger(CheckerConsumer.class);
private BitstreamInfoDAO bitstreamInfoDAO = new BitstreamInfoDAO();
/**
* Initialize - allocate any resources required to operate.
* Called at the start of ANY sequence of event consume() calls.
*/
public void initialize() throws Exception
{
// no-op
}
/**
* Consume an event
*
* @param ctx the execution context object
*
* @param event the content event
*/
public void consume(Context ctx, Event event) throws Exception
{
if (event.getEventType() == Event.DELETE)
{
log.debug("Attempting to remove Checker Info");
bitstreamInfoDAO.deleteBitstreamInfoWithHistory(event.getSubjectID());
log.debug("Completed removing Checker Info");
}
}
/**
* Signal that there are no more events queued in this
* event stream.
*/
public void end(Context ctx) throws Exception
{
// no-op
}
/**
* Finish - free any allocated resources.
* Called when consumer is being released
*/
public void finish(Context ctx) throws Exception
{
// no-op
}
}