| 1 | package org.ufcspa.simdecs.bn.ui.util; |
| 2 | |
| 3 | import java.util.List; |
| 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; |
| 9 | |
| 10 | public class JsfUtil { |
| 11 | |
| 12 | public static SelectItem[] getSelectItems(List<?> entities, boolean selectOne) { |
| 13 | int size = selectOne ? entities.size() + 1 : entities.size(); |
| 14 | SelectItem[] items = new SelectItem[size]; |
| 15 | int i = 0; |
| 16 | if (selectOne) { |
| 17 | items[0] = new SelectItem("", "---"); |
| 18 | i++; |
| 19 | } |
| 20 | for (Object x : entities) { |
| 21 | items[i++] = new SelectItem(x, x.toString()); |
| 22 | } |
| 23 | return items; |
| 24 | } |
| 25 | |
| 26 | public static void addErrorMessage(Exception ex, String defaultMsg) { |
| 27 | String msg = ex.getLocalizedMessage(); |
| 28 | if (msg != null && msg.length() > 0) { |
| 29 | addErrorMessage(msg); |
| 30 | } else { |
| 31 | addErrorMessage(defaultMsg); |
| 32 | } |
| 33 | } |
| 34 | |
| 35 | public static void addErrorMessages(List<String> messages) { |
| 36 | for (String message : messages) { |
| 37 | addErrorMessage(message); |
| 38 | } |
| 39 | } |
| 40 | |
| 41 | public static void addErrorMessage(String msg) { |
| 42 | FacesMessage facesMsg = new FacesMessage(FacesMessage.SEVERITY_ERROR, msg, msg); |
| 43 | FacesContext.getCurrentInstance().addMessage(null, facesMsg); |
| 44 | } |
| 45 | |
| 46 | public static void addSuccessMessage(String msg) { |
| 47 | FacesMessage facesMsg = new FacesMessage(FacesMessage.SEVERITY_INFO, msg, msg); |
| 48 | FacesContext.getCurrentInstance().addMessage("successInfo", facesMsg); |
| 49 | } |
| 50 | |
| 51 | public static String getRequestParameter(String key) { |
| 52 | return FacesContext.getCurrentInstance().getExternalContext().getRequestParameterMap().get(key); |
| 53 | } |
| 54 | |
| 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); |
| 58 | } |
| 59 | } |