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1   /*
2    * JBoss, Home of Professional Open Source
3    * Copyright 2014, Red Hat, Inc. and/or its affiliates, and individual
4    * contributors by the @authors tag. See the copyright.txt in the
5    * distribution for a full listing of individual contributors.
6    *
7    * Licensed under the Apache License, Version 2.0 (the "License");
8    * you may not use this file except in compliance with the License.
9    * You may obtain a copy of the License at
10   * http://www.apache.org/licenses/LICENSE-2.0
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.jboss.as.quickstarts.temperatureconverter.controller;
18  
19  import javax.faces.component.UIComponent;
20  import javax.faces.context.FacesContext;
21  import javax.faces.convert.Converter;
22  import javax.inject.Named;
23  
24  import org.jboss.as.quickstarts.temperatureconverter.ejb.Scale;
25  
26  /**
27   * A JSF converter that can handle the {@link Scale} enum.
28   * 
29   * @author Pete Muir
30   * 
31   */
32  @Named
33  public class ScaleConverter implements Converter {
34  
35      public Scale[] getScales() {
36          return Scale.values();
37      }
38  
39      @Override
40      public Object getAsObject(FacesContext ctx, UIComponent cmp, String value) {
41          return Scale.valueOf(value);
42      }
43  
44      @Override
45      public String getAsString(FacesContext ctx, UIComponent cmp, Object value) {
46          if (value instanceof Scale) {
47              return ((Scale) value).name();
48          } else {
49              throw new IllegalStateException();
50          }
51      }
52  
53  }