BaseRSSStrutsAction.java

/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 */

package com.liferay.portal.struts;

import com.liferay.portal.kernel.servlet.ServletResponseUtil;
import com.liferay.portal.kernel.struts.BaseStrutsAction;
import com.liferay.portal.kernel.util.ContentTypes;
import com.liferay.portal.kernel.util.PortalUtil;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * @author Iván Zaera
 */
public abstract class BaseRSSStrutsAction extends BaseStrutsAction {

	@Override
	public String execute(
			HttpServletRequest request, HttpServletResponse response)
		throws Exception {

		if (!isRSSFeedsEnabled(request)) {
			PortalUtil.sendRSSFeedsDisabledError(request, response);

			return null;
		}

		try {
			ServletResponseUtil.sendFile(
				request, response, null, getRSS(request),
				ContentTypes.TEXT_XML_UTF8);

			return null;
		}
		catch (Exception e) {
			PortalUtil.sendError(e, request, response);

			return null;
		}
	}

	protected abstract byte[] getRSS(HttpServletRequest request)
		throws Exception;

	protected boolean isRSSFeedsEnabled(HttpServletRequest request)
		throws Exception {

		return PortalUtil.isRSSFeedsEnabled();
	}

}