StringArrayConverter


1   // Copyright (c) 2003-2007, Jodd Team (jodd.sf.net). All Rights Reserved.
2   
3   package jodd.typeconverter;
4   
5   /**
6    * Converts given object to String[].
7    * If object is an array than it is converted to String[] array.
8    * If object is not an array, new String[] array will be created with one
9    * element only: String of the given object.
10   */
11  public class StringArrayConverter implements TypeConverter {
12  
13      public static String  [] valueOf(Object   value) {
14  
15          if (value == null) {
16              return null;
17          }
18          Class   type = value.getClass();
19          if (type.isArray() == false) {
20              return new String  [] { value.toString() };
21          }
22  
23          // handle arrays
24          if (type == String  [].class) {
25              return (String  []) value;
26          }
27  
28          Object  [] values;
29          try {
30              values = (Object  []) value;
31          } catch (ClassCastException   ccex) {
32              throw new TypeConversionException(ccex);
33          }
34  
35          String  [] result = new String  [values.length];
36          for (int i = 0; i < values.length; i++) {
37              if (values[i] != null) {
38                  result[i] = values[i].toString();
39              }
40          }
41          return result;
42      }
43  
44      public Object   convert(Object   value) {
45          return valueOf(value);
46      }
47      
48  }
49

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