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.configuration.files; import com.redhat.rhn.common.db.datasource.DataResult; import com.redhat.rhn.common.localization.LocalizationService; import com.redhat.rhn.domain.action.Action; import com.redhat.rhn.domain.config.ConfigRevision; import com.redhat.rhn.domain.rhnset.RhnSet; import com.redhat.rhn.domain.rhnset.RhnSetElement; import com.redhat.rhn.domain.user.User; import com.redhat.rhn.frontend.action.common.RhnSetAction; import com.redhat.rhn.frontend.action.configuration.ConfigActionHelper; import com.redhat.rhn.frontend.struts.RequestContext; import com.redhat.rhn.frontend.struts.RhnHelper; import com.redhat.rhn.manager.action.ActionManager; import com.redhat.rhn.manager.configuration.ConfigurationManager; import com.redhat.rhn.manager.rhnset.RhnSetDecl; import org.apache.commons.lang.StringEscapeUtils; import org.apache.struts.action.ActionErrors; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; import org.apache.struts.action.ActionMessage; import org.apache.struts.action.ActionMessages; import java.util.HashMap; import java.util.HashSet; import java.util.Iterator; import java.util.Map; import java.util.Set; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; /** * CompareDeployedSubmitAction * @version $Rev$ */ public class CompareDeployedSubmitAction extends RhnSetAction { /** * {@inheritDoc} */ protected DataResult getDataResult(User userIn, ActionForm formIn, HttpServletRequest requestIn) { Long cfnid = ConfigActionHelper.getFile(requestIn).getConfigFileName().getId(); ConfigurationManager cm = ConfigurationManager.getInstance(); return cm.listSystemsForFileCompare(userIn, cfnid, null); } /** * {@inheritDoc} */ protected RhnSetDecl getSetDecl() { return RhnSetDecl.CONFIG_SYSTEMS; } /** * {@inheritDoc} */ protected void processMethodKeys(Map<String, String> mapIn) { mapIn.put("comparedeployed.jsp.schedule", "schedule"); } /** * {@inheritDoc} */ protected void processParamMap(ActionForm formIn, HttpServletRequest requestIn, Map<String, Object> paramsIn) { ConfigActionHelper.processParamMap(requestIn, paramsIn); } /** * Schedule the config diff action using the set of systems in rhnSet. * @param mapping struts ActionMapping * @param formIn struts ActionForm * @param request HttpServletRequest * @param response HttpServletResponse * @return the default ActionForward */ public ActionForward schedule(ActionMapping mapping, ActionForm formIn, HttpServletRequest request, HttpServletResponse response) { RequestContext requestContext = new RequestContext(request); updateSet(request); User user = requestContext.getCurrentUser(); //get the set from the database and then clear it. RhnSet set = RhnSetDecl.CONFIG_SYSTEMS.get(user); RhnSetDecl.CONFIG_SYSTEMS.clear(user); //We want a set of ids, but we have a set of RhnSetElements. This //does the conversion. Set sids = new HashSet(); Iterator i = set.getElements().iterator(); while (i.hasNext()) { Long sid = ((RhnSetElement) i.next()).getElement(); sids.add(sid); } //We need a set of ids to send to ActionManager. We only have one id. ConfigRevision revision = ConfigActionHelper.getRevision(request, ConfigActionHelper.getFile(request)); Set crids = new HashSet(); crids.add(revision.getId()); //create the action and then create the message to send the user. Action action = ActionManager.createConfigDiffAction(user, crids, sids); makeMessage(action, request); //go to the next page. ActionForward base = mapping.findForward(RhnHelper.DEFAULT_FORWARD); Map<String, Object> params = new HashMap<String, Object>(); processParamMap(formIn, request, params); return getStrutsDelegate().forwardParams(base, params); } private void makeMessage(Action action, HttpServletRequest request) { if (action != null) { //get how many servers this action was created for. int successes = action.getServerActions().size(); String number = LocalizationService.getInstance().formatNumber(new Integer(successes)); //build the url for the action we have created. String url = "/rhn/schedule/ActionDetails.do?aid=" + action.getId(); //create the success message ActionMessages msg = new ActionMessages(); String key; if (successes == 1) { key = "configdiff.schedule.success.singular"; } else { key = "configdiff.schedule.success"; } Object[] args = new Object[2]; args[0] = StringEscapeUtils.escapeHtml(url); args[1] = StringEscapeUtils.escapeHtml(number); //add in the success message msg.add(ActionMessages.GLOBAL_MESSAGE, new ActionMessage(key, args)); getStrutsDelegate().saveMessages(request, msg); } else { //Something went wrong, tell user! ActionErrors errors = new ActionErrors(); getStrutsDelegate().addError("configdiff.schedule.error", errors); getStrutsDelegate().saveMessages(request, errors); } } }