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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  package javax.faces.convert;
20  
21  import javax.faces.component.UIComponent;
22  import javax.faces.context.FacesContext;
23  
24  import org.apache.myfaces.buildtools.maven2.plugin.builder.annotation.JSFConverter;
25  
26  import java.math.BigDecimal;
27  
28  /**
29   * see Javadoc of <a href="http://java.sun.com/javaee/javaserverfaces/1.2/docs/api/index.html">JSF Specification</a>
30   *
31   * @author Thomas Spiegl (latest modification by $Author: bommel $)
32   * @version $Revision: 1187700 $ $Date: 2011-10-22 07:19:37 -0500 (Sat, 22 Oct 2011) $
33   */
34  @JSFConverter
35  public class BigDecimalConverter
36          implements Converter
37  {
38      // FIELDS
39      public static final String CONVERTER_ID = "javax.faces.BigDecimal";
40      public static final String STRING_ID = "javax.faces.converter.STRING";
41      public static final String DECIMAL_ID = "javax.faces.converter.BigDecimalConverter.DECIMAL";
42  
43      // CONSTRUCTORS
44      public BigDecimalConverter()
45      {
46      }
47  
48      // METHODS
49      public Object getAsObject(FacesContext facesContext, UIComponent uiComponent, String value)
50      {
51          if (facesContext == null) throw new NullPointerException("facesContext");
52          if (uiComponent == null) throw new NullPointerException("uiComponent");
53  
54          if (value != null)
55          {
56              {
57                  value = value.trim();
58                  if (value.length() > 0)
59                  {
60                      try
61                      {
62                          return new BigDecimal(value.trim());
63                      }
64                      catch (NumberFormatException e)
65                      {
66                          throw new ConverterException(_MessageUtils.getErrorMessage(facesContext,
67                                                                                     DECIMAL_ID,
68                                                                                     new Object[]{value,new BigDecimal(4815.16).toString(),_MessageUtils.getLabel(facesContext, uiComponent)}), e);
69                      }
70                  }
71              }
72          }
73          return null;
74      }
75  
76      public String getAsString(FacesContext facesContext, UIComponent uiComponent, Object value)
77      {
78          if (facesContext == null) throw new NullPointerException("facesContext");
79          if (uiComponent == null) throw new NullPointerException("uiComponent");
80  
81          if (value == null)
82          {
83              return "";
84          }
85          if (value instanceof String)
86          {
87              return (String)value;
88          }
89          try
90          {
91              return ((BigDecimal)value).toString();
92          }
93          catch (Exception e)
94          {
95              throw new ConverterException(_MessageUtils.getErrorMessage(facesContext, STRING_ID, new Object[]{value,_MessageUtils.getLabel(facesContext, uiComponent)}),e);
96          }
97      }
98  }