Java tutorial
/** * Copyright (c) 2009--2014 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.systems.monitoring; import com.redhat.rhn.domain.monitoring.Probe; import com.redhat.rhn.domain.server.Server; import com.redhat.rhn.domain.user.User; import com.redhat.rhn.frontend.struts.RequestContext; import com.redhat.rhn.frontend.struts.RhnHelper; import com.redhat.rhn.manager.monitoring.MonitoringManager; import org.apache.commons.lang.StringEscapeUtils; import org.apache.log4j.Logger; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; import org.apache.struts.action.DynaActionForm; import java.util.HashMap; import java.util.Map; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; /** * Action for the probe details page. Note that there is no correpsonding * SetupAction since there isn't really a good separation between setup * and performing the action. * * @version $Rev: 53910 $ */ public class ProbeDeleteAction extends BaseProbeAction { private static Logger log = Logger.getLogger(ProbeDeleteAction.class); /** {@inheritDoc} */ public ActionForward execute(ActionMapping mapping, ActionForm formIn, HttpServletRequest req, HttpServletResponse resp) { DynaActionForm form = (DynaActionForm) formIn; RequestContext rctx = new RequestContext(req); Probe probe = rctx.lookupProbe(); Server server = rctx.lookupAndBindServer(); User user = rctx.getCurrentUser(); // Handle the submit boolean submitted = handleSubmit(probe, user, form, req); req.setAttribute("probe", probe); if (submitted) { Map<String, Object> params = new HashMap<String, Object>(); params.put(RequestContext.SID, server.getId()); log.debug("Deleted probe: " + probe.getId()); return getStrutsDelegate().forwardParams(mapping.findForward("deleted"), params); } return mapping.findForward(RhnHelper.DEFAULT_FORWARD); } // Copy values from the DynaActionForm into the ServerProbe object // and store it to the DB. private boolean handleSubmit(Probe probe, User user, DynaActionForm form, HttpServletRequest req) { boolean submitted = isSubmitted(form); if (submitted) { MonitoringManager.getInstance().deleteProbe(probe, user); createSuccessMessage(req, "probeedit.probedeleted", StringEscapeUtils.escapeHtml(probe.getDescription())); } return submitted; } }