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1   package net.logAnalyzer.converters;
2   
3   import net.logAnalyzer.handlers.ParsingException;
4   
5   /***
6    * This class implements a converter used to parse or convert
7    * {@link java.lang.String}values.
8    * 
9    * @author Karim REFEYTON
10   * @version 0.1
11   */
12  public class StringConverter extends LAConverter {
13  
14      /***
15       * Constructs a new converter from a converter definition.
16       * 
17       * @param definition
18       *            Definition of the converter.
19       * @param literal
20       *            Literal value identifying the converter.
21       */
22      public StringConverter(ConverterDefinition definition, String literal) {
23          super(definition, literal);
24      }
25  
26      /***
27       * Returns the class {@link String}.
28       * 
29       * @see LAConverter#getValueClass()
30       */
31      public Class getValueClass() {
32          return String.class;
33      }
34  
35      /***
36       * Returns the value unmodified.
37       * 
38       * @return The value unmodified.
39       * @see LAConverter#parse(String)
40       * @throws ParsingException
41       *             If the value can't be parsed.
42       */
43      public Object parse(String value) throws ParsingException {
44          if (value == null) {
45              return "";
46          } else {
47              return value;
48          }
49      }
50  
51      /***
52       * Returns a string representation of the value calling <tt>toString()</tt>.
53       * 
54       * @param value
55       *            Value to convert as String.
56       * @return String representation of the value.
57       * @see LAConverter#toString(Object)
58       */
59      public String toString(Object value) {
60          return value.toString();
61      }
62  }