001/* 002 * (C) Copyright 2006 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * Florent Guillaume 018 */ 019package org.nuxeo.project.sample; 020 021import javax.faces.application.FacesMessage; 022import javax.faces.component.UIComponent; 023import javax.faces.context.FacesContext; 024import javax.faces.convert.Converter; 025import javax.faces.convert.ConverterException; 026 027public class BookIntegerConverter implements Converter { 028 029 public Object getAsObject(FacesContext context, UIComponent component, String value) { 030 Integer result; 031 if (value.trim().length() == 0) { 032 result = Integer.valueOf(0); 033 } else { 034 try { 035 result = Integer.valueOf(Integer.parseInt(value)); 036 } catch (NumberFormatException e) { 037 FacesMessage message = new FacesMessage(); 038 message.setDetail("The value must be an integer"); 039 message.setSummary("Not an integer"); 040 message.setSeverity(FacesMessage.SEVERITY_ERROR); 041 throw new ConverterException(message); 042 } 043 } 044 return result; 045 } 046 047 public String getAsString(FacesContext context, UIComponent component, Object value) { 048 int v = ((Integer) value).intValue(); 049 if (v == 0) { 050 return ""; 051 } else { 052 return Integer.toString(v); 053 } 054 } 055 056}