com.liferay.portlet.blogs.action.RSSAction.java Source code

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Here is the source code for com.liferay.portlet.blogs.action.RSSAction.java

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/**
 * Copyright (c) 2000-2012 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.portlet.blogs.action;

import com.liferay.portal.kernel.dao.search.SearchContainer;
import com.liferay.portal.kernel.servlet.ServletResponseUtil;
import com.liferay.portal.kernel.util.ContentTypes;
import com.liferay.portal.kernel.util.ParamUtil;
import com.liferay.portal.kernel.util.StringPool;
import com.liferay.portal.kernel.workflow.WorkflowConstants;
import com.liferay.portal.model.Layout;
import com.liferay.portal.struts.PortletAction;
import com.liferay.portal.theme.ThemeDisplay;
import com.liferay.portal.util.Portal;
import com.liferay.portal.util.PortalUtil;
import com.liferay.portal.util.WebKeys;
import com.liferay.portlet.blogs.service.BlogsEntryServiceUtil;
import com.liferay.util.RSSUtil;

import java.io.OutputStream;

import java.util.Date;

import javax.portlet.PortletConfig;
import javax.portlet.ResourceRequest;
import javax.portlet.ResourceResponse;

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

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

/**
 * @author Brian Wing Shun Chan
 */
public class RSSAction extends PortletAction {

    @Override
    public void serveResource(ActionMapping mapping, ActionForm form, PortletConfig portletConfig,
            ResourceRequest resourceRequest, ResourceResponse resourceResponse) throws Exception {

        resourceResponse.setContentType(ContentTypes.TEXT_XML_UTF8);

        OutputStream outputStream = resourceResponse.getPortletOutputStream();

        try {
            byte[] bytes = getRSS(resourceRequest);

            outputStream.write(bytes);
        } finally {
            outputStream.close();
        }
    }

    @Override
    public ActionForward strutsExecute(ActionMapping mapping, ActionForm form, HttpServletRequest request,
            HttpServletResponse response) throws Exception {

        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 byte[] getRSS(HttpServletRequest request) throws Exception {
        ThemeDisplay themeDisplay = (ThemeDisplay) request.getAttribute(WebKeys.THEME_DISPLAY);

        Layout layout = themeDisplay.getLayout();

        long plid = ParamUtil.getLong(request, "p_l_id");
        long companyId = ParamUtil.getLong(request, "companyId");
        long groupId = ParamUtil.getLong(request, "groupId");
        long organizationId = ParamUtil.getLong(request, "organizationId");
        int status = WorkflowConstants.STATUS_APPROVED;
        int max = ParamUtil.getInteger(request, "max", SearchContainer.DEFAULT_DELTA);
        String type = ParamUtil.getString(request, "type", RSSUtil.TYPE_DEFAULT);
        double version = ParamUtil.getDouble(request, "version", RSSUtil.VERSION_DEFAULT);
        String displayStyle = ParamUtil.getString(request, "displayStyle", RSSUtil.DISPLAY_STYLE_FULL_CONTENT);

        String feedURL = themeDisplay.getPortalURL() + themeDisplay.getPathMain() + "/blogs/find_entry?";

        String entryURL = feedURL;

        String rss = StringPool.BLANK;

        if (companyId > 0) {
            feedURL = StringPool.BLANK;

            rss = BlogsEntryServiceUtil.getCompanyEntriesRSS(companyId, new Date(), status, max, type, version,
                    displayStyle, feedURL, entryURL, themeDisplay);
        } else if (groupId > 0) {
            feedURL += "p_l_id=" + plid;

            entryURL = feedURL;

            rss = BlogsEntryServiceUtil.getGroupEntriesRSS(groupId, new Date(), status, max, type, version,
                    displayStyle, feedURL, entryURL, themeDisplay);
        } else if (organizationId > 0) {
            feedURL = StringPool.BLANK;

            rss = BlogsEntryServiceUtil.getOrganizationEntriesRSS(organizationId, new Date(), status, max, type,
                    version, displayStyle, feedURL, entryURL, themeDisplay);
        } else if (layout != null) {
            groupId = themeDisplay.getScopeGroupId();

            feedURL = PortalUtil.getLayoutFullURL(themeDisplay) + Portal.FRIENDLY_URL_SEPARATOR + "blogs/rss";

            entryURL = feedURL;

            rss = BlogsEntryServiceUtil.getGroupEntriesRSS(groupId, new Date(), status, max, type, version,
                    displayStyle, feedURL, entryURL, themeDisplay);
        }

        return rss.getBytes(StringPool.UTF8);
    }

    protected byte[] getRSS(ResourceRequest resourceRequest) throws Exception {
        HttpServletRequest request = PortalUtil.getHttpServletRequest(resourceRequest);

        return getRSS(request);
    }

    @Override
    protected boolean isCheckMethodOnProcessAction() {
        return _CHECK_METHOD_ON_PROCESS_ACTION;
    }

    private static final boolean _CHECK_METHOD_ON_PROCESS_ACTION = false;

}