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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  
20  package org.apache.myfaces.tobago.convert;
21  
22  import org.apache.myfaces.tobago.internal.util.StringUtils;
23  
24  import javax.faces.component.UIComponent;
25  import javax.faces.context.FacesContext;
26  import javax.faces.convert.Converter;
27  import javax.faces.convert.ConverterException;
28  import java.util.Currency;
29  
30  /**
31   * JSF converter for the java.util.Currency class.
32   */
33  @org.apache.myfaces.tobago.apt.annotation.Converter(forClass = "java.util.Currency")
34  public class CurrencyConverter implements Converter {
35  
36    @Override
37    public Object getAsObject(final FacesContext facesContext, final UIComponent component, final String string)
38        throws ConverterException {
39      if (StringUtils.isBlank(string)) {
40        return null;
41      } else {
42        return Currency.getInstance(string);
43      }
44    }
45  
46    @Override
47    public String getAsString(final FacesContext facesContext, final UIComponent component, final Object object)
48        throws ConverterException {
49      if (object == null) {
50        return null;
51      }
52      try {
53        return ((Currency) object).getCurrencyCode();
54      } catch (final ClassCastException e) {
55        throw new ConverterException("object='" + object + "'", e);
56      }
57    }
58  }