/*
* RHQ Management Platform
* Copyright (C) 2005-2008 Red Hat, Inc.
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation version 2 of the License.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
package org.rhq.enterprise.gui.ha;
import javax.faces.application.FacesMessage;
import javax.faces.model.DataModel;
import org.rhq.core.domain.auth.Subject;
import org.rhq.core.domain.authz.Permission;
import org.rhq.core.domain.cloud.Server;
import org.rhq.core.domain.resource.Agent;
import org.rhq.core.domain.util.PageControl;
import org.rhq.core.domain.util.PageList;
import org.rhq.core.gui.util.FacesContextUtility;
import org.rhq.enterprise.gui.common.framework.PagedDataTableUIBean;
import org.rhq.enterprise.gui.common.paging.PageControlView;
import org.rhq.enterprise.gui.common.paging.PagedListDataModel;
import org.rhq.enterprise.gui.util.EnterpriseFacesContextUtility;
import org.rhq.enterprise.server.authz.PermissionException;
import org.rhq.enterprise.server.cloud.TopologyManagerLocal;
import org.rhq.enterprise.server.core.AgentManagerLocal;
import org.rhq.enterprise.server.util.LookupUtil;
public class ViewServerUIBean extends PagedDataTableUIBean {
public static final String MANAGED_BEAN_NAME = "ViewServerUIBean";
private AgentManagerLocal agentManager = LookupUtil.getAgentManager();
private TopologyManagerLocal topologyManager = LookupUtil.getTopologyManager();
private Server server;
public ViewServerUIBean() {
hasPermission();
int serverId = FacesContextUtility.getRequiredRequestParameter("serverId", Integer.class);
server = topologyManager.getServerById(serverId);
}
@Override
public DataModel getDataModel() {
if (null == dataModel) {
dataModel = new ViewServerDataModel(PageControlView.ServerConnectedAgentsView, MANAGED_BEAN_NAME);
}
return dataModel;
}
public Server getServer() {
return server;
}
public String edit() {
return "edit";
}
public String save() {
try {
topologyManager.updateServer(getSubject(), getServer());
FacesContextUtility.addMessage(FacesMessage.SEVERITY_INFO,
"This server's public address and ports have been updated.");
} catch (Exception e) {
FacesContextUtility.addMessage(FacesMessage.SEVERITY_ERROR, "Error: " + e.getMessage());
return "edit"; // stay in edit mode on failure
}
return "success";
}
public String cancel() {
return "success";
}
private class ViewServerDataModel extends PagedListDataModel<Agent> {
public ViewServerDataModel(PageControlView view, String beanName) {
super(view, beanName);
}
@Override
@SuppressWarnings("unchecked")
public PageList<Agent> fetchPage(PageControl pc) {
int serverId = getServer().getId();
PageList<Agent> results = agentManager.getAgentsByServer(getSubject(), serverId, pc);
return results;
}
}
/**
* Throws a permission exception if the user is not allowed to access this functionality.
*/
private void hasPermission() {
Subject subject = EnterpriseFacesContextUtility.getSubject();
if (!LookupUtil.getAuthorizationManager().hasGlobalPermission(subject, Permission.MANAGE_INVENTORY)) {
throw new PermissionException("User [" + subject.getName()
+ "] does not have the proper permissions to view or manage servers");
}
}
}