/**
* Bean responsible for the agent details display page. This bean will also provide a pagable list
* of the failover servers for a particular agent.
*
* @author Jason Dobies
*/
public class ViewAgentUIBean extends PagedDataTableUIBean {
public static final String MANAGED_BEAN_NAME = "ViewAgentUIBean";
private AgentManagerLocal agentManager = LookupUtil.getAgentManager();
private CloudManagerLocal cloudManager = LookupUtil.getCloudManager();
private Agent agent;
public Agent getAgent() {
if (agent == null) {
hasPermission();
int agentId = FacesContextUtility.getRequiredRequestParameter("agentId", Integer.class);
agent = agentManager.getAgentByID(agentId);
}
return agent;
}
@Override
public DataModel getDataModel() {
if (dataModel == null) {
dataModel =
new ViewAgentUIBeanDataModel(PageControlView.AgentFailoverListView, MANAGED_BEAN_NAME);
}
return dataModel;
}
private class ViewAgentUIBeanDataModel extends PagedListDataModel<FailoverListDetails> {
private ViewAgentUIBeanDataModel(PageControlView view, String beanName) {
super(view, beanName);
}
@Override
public PageList<FailoverListDetails> fetchPage(PageControl pc) {
int agentId = getAgent().getId();
PageList<FailoverListDetails> pageList =
cloudManager.getFailoverListDetailsByAgentId(agentId, pc);
return pageList;
}
}
/** 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 agents");
}
}
}
