1 package org.ufcspa.simdecs.bn.ui.util;
4 import javax.faces.application.FacesMessage;
5 import javax.faces.component.UIComponent;
6 import javax.faces.context.FacesContext;
7 import javax.faces.convert.Converter;
8 import javax.faces.model.SelectItem;
10 public class JsfUtil {
12 public static SelectItem[] getSelectItems(List<?> entities, boolean selectOne) {
13 int size = selectOne ? entities.size() + 1 : entities.size();
14 SelectItem[] items = new SelectItem[size];
17 items[0] = new SelectItem("", "---");
20 for (Object x : entities) {
21 items[i++] = new SelectItem(x, x.toString());
26 public static void addErrorMessage(Exception ex, String defaultMsg) {
27 String msg = ex.getLocalizedMessage();
28 if (msg != null && msg.length() > 0) {
31 addErrorMessage(defaultMsg);
35 public static void addErrorMessages(List<String> messages) {
36 for (String message : messages) {
37 addErrorMessage(message);
41 public static void addErrorMessage(String msg) {
42 FacesMessage facesMsg = new FacesMessage(FacesMessage.SEVERITY_ERROR, msg, msg);
43 FacesContext.getCurrentInstance().addMessage(null, facesMsg);
46 public static void addSuccessMessage(String msg) {
47 FacesMessage facesMsg = new FacesMessage(FacesMessage.SEVERITY_INFO, msg, msg);
48 FacesContext.getCurrentInstance().addMessage("successInfo", facesMsg);
51 public static String getRequestParameter(String key) {
52 return FacesContext.getCurrentInstance().getExternalContext().getRequestParameterMap().get(key);
55 public static Object getObjectFromRequestParameter(String requestParameterName, Converter converter, UIComponent component) {
56 String theId = JsfUtil.getRequestParameter(requestParameterName);
57 return converter.getAsObject(FacesContext.getCurrentInstance(), component, theId);