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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: struberg $)
32   * @version $Revision: 1188415 $ $Date: 2011-10-24 22:13:21 +0000 (Mon, 24 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)
52          {
53              throw new NullPointerException("facesContext");
54          }
55          if (uiComponent == null)
56          {
57              throw new NullPointerException("uiComponent");
58          }
59  
60          if (value != null)
61          {
62              {
63                  value = value.trim();
64                  if (value.length() > 0)
65                  {
66                      try
67                      {
68                          return new BigDecimal(value.trim());
69                      }
70                      catch (NumberFormatException e)
71                      {
72                          throw new ConverterException(_MessageUtils.getErrorMessage(facesContext,
73                                         DECIMAL_ID,
74                                         new Object[]{value,new BigDecimal(4815.16).toString(),
75                                                      _MessageUtils.getLabel(facesContext, uiComponent)}), e);
76                      }
77                  }
78              }
79          }
80          return null;
81      }
82  
83      public String getAsString(FacesContext facesContext, UIComponent uiComponent, Object value)
84      {
85          if (facesContext == null)
86          {
87              throw new NullPointerException("facesContext");
88          }
89          if (uiComponent == null)
90          {
91              throw new NullPointerException("uiComponent");
92          }
93  
94          if (value == null)
95          {
96              return "";
97          }
98          if (value instanceof String)
99          {
100             return (String)value;
101         }
102         try
103         {
104             return ((BigDecimal)value).toString();
105         }
106         catch (Exception e)
107         {
108             throw new ConverterException(_MessageUtils.getErrorMessage(facesContext, STRING_ID,
109                     new Object[]{value,_MessageUtils.getLabel(facesContext, uiComponent)}),e);
110         }
111     }
112 }