BaseRSSMVCResourceCommand.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.kernel.portlet.bridges.mvc;

import com.liferay.portal.kernel.portlet.PortletResponseUtil;
import com.liferay.portal.kernel.util.ContentTypes;
import com.liferay.portal.kernel.util.PortalUtil;

import javax.portlet.PortletException;
import javax.portlet.ResourceRequest;
import javax.portlet.ResourceResponse;

/**
 * @author Eduardo Garcia
 */
public abstract class BaseRSSMVCResourceCommand implements MVCResourceCommand {

	@Override
	public boolean serveResource(
			ResourceRequest resourceRequest, ResourceResponse resourceResponse)
		throws PortletException {

		if (!isRSSFeedsEnabled(resourceRequest)) {
			try {
				PortalUtil.sendRSSFeedsDisabledError(
					resourceRequest, resourceResponse);
			}
			catch (Exception e) {
			}

			return false;
		}

		try {
			PortletResponseUtil.sendFile(
				resourceRequest, resourceResponse, null,
				getRSS(resourceRequest, resourceResponse),
				ContentTypes.TEXT_XML_UTF8);
		}
		catch (Exception e) {
			throw new PortletException(e);
		}

		return true;
	}

	protected abstract byte[] getRSS(
			ResourceRequest resourceRequest, ResourceResponse resourceResponse)
		throws Exception;

	protected boolean isRSSFeedsEnabled(ResourceRequest resourceRequest) {
		return PortalUtil.isRSSFeedsEnabled();
	}

}