Java tutorial
/** * Copyright (c) 2009--2012 Red Hat, Inc. * * This software is licensed to you under the GNU General Public License, * version 2 (GPLv2). There is NO WARRANTY for this software, express or * implied, including the implied warranties of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. You should have received a copy of GPLv2 * along with this software; if not, see * http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. * * Red Hat trademarks are not licensed under GPLv2. No permission is * granted to use or replicate Red Hat trademarks that are incorporated * in this software or its documentation. */ package com.redhat.rhn.frontend.action.satellite; import com.redhat.rhn.common.util.FileUtils; import com.redhat.rhn.frontend.struts.RhnAction; import com.redhat.rhn.frontend.struts.RhnHelper; import org.apache.commons.lang.StringEscapeUtils; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; /** * @author coec * @version $Rev$ */ public class CatalinaAction extends RhnAction { /** {@inheritDoc} */ public ActionForward execute(ActionMapping mapping, ActionForm formIn, HttpServletRequest request, HttpServletResponse response) { String catalinaBase = System.getProperty("catalina.base"); String contents = FileUtils.getTailOfFile(catalinaBase + "/logs/catalina.out", 1000); contents = StringEscapeUtils.escapeHtml(contents); request.setAttribute("contents", contents); return mapping.findForward(RhnHelper.DEFAULT_FORWARD); } }