monitoreddiskfileitem.java

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package book.upload;

import org.apache.commons.fileupload.disk.DiskFileItem;
import java.io.File;
import java.io.OutputStream;
import java.io.IOException;

public class MonitoredDiskFileItem extends DiskFileItem 
{
	
	private static final long serialVersionUID = 1L;
	private MonitoredOutputStream mos = null;
	private OutputStreamListener listener;
	
	public MonitoredDiskFileItem(String fieldName, String contentType, boolean isFormField, String fileName, int sizeThreshold, File repository, OutputStreamListener listener) 
	{		
		super(fieldName, contentType, isFormField, fileName, sizeThreshold, repository);
		this.listener = listener;
	}
	
	public OutputStream getOutputStream() throws IOException 
	{	
		if(mos == null) 
		{
			mos = new MonitoredOutputStream(super.getOutputStream(), listener);
		}
		return mos;
	}
}