/**
* 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.dspace.content.Bitstream;
import java.util.*;
/**
* Really simple dispatcher that just iterates over a pre-defined list of ids.
*
* @author Jim Downing
* @author Grace Carpenter
* @author Nathan Sarr
*
*/
public class IteratorDispatcher implements BitstreamDispatcher
{
/**
* List of Integer ids.
*/
protected Iterator<Bitstream> bitstreams = null;
/**
* Blanked off, no-op constructor. Do not use.
*/
private IteratorDispatcher()
{
}
/**
* Main constructor.
*
* @param bitstreams bitstream iterator
*/
public IteratorDispatcher(Iterator<Bitstream> bitstreams)
{
this.bitstreams = bitstreams;
}
/**
* @see org.dspace.checker.BitstreamDispatcher#next()
*/
@Override
public synchronized Bitstream next()
{
if(bitstreams != null && bitstreams.hasNext())
{
return bitstreams.next();
}else{
return null;
}
}
}