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Stripecube is an open source Java framework for Web Applications

There is a newer version: 1.30

package com.clickntap.tool.upload;

import javax.servlet.http.HttpServletRequest;

public class Progress {

	private String multipartKey;
	private HttpServletRequest request;

	public void setRequest(HttpServletRequest request) {
		this.request = request;
	}

	public String getMultipartKey() {
		return multipartKey;
	}

	public void setMultipartKey(String multipartKey) {
		this.multipartKey = multipartKey;
	}

	public ProgressCommonsListener getListener() {
		if (hasListener()) {
			return (ProgressCommonsListener) request.getSession().getAttribute(multipartKey);
		}
		return null;
	}

	public boolean hasListener() {
		return request != null && request.getSession().getAttribute(multipartKey) != null;
	}

}