CharacterEncodingRule


1   package org.apache.webapp.balancer.rules;
2   
3   import javax.servlet.http.HttpServletRequest  ;
4   
5   
6   /**
7    * This rule redirects requests if they
8    * are for a specific character encoding.
9    *
10   * @author Yoav Shapira
11   */
12  public class CharacterEncodingRule extends BaseRule {
13      /**
14       * The character encoding.
15       */
16      private String   encoding;
17  
18      /**
19       * Sets the character encoding.
20       *
21       * @param theEncoding The encoding value
22       */
23      public void setEncoding(String   theEncoding) {
24          if (theEncoding == null) {
25              throw new IllegalArgumentException  ("The encoding cannot be null.");
26          } else {
27              encoding = theEncoding;
28          }
29      }
30  
31      /**
32       * Returns the desired encoding.
33       *
34       * @return String
35       */
36      protected String   getEncoding() {
37          return encoding;
38      }
39  
40      /**
41       * @see org.apache.webapp.balancer.Rule#matches(HttpServletRequest request)
42       */
43      public boolean matches(HttpServletRequest   request) {
44          String   actualEncoding = request.getCharacterEncoding();
45  
46          return (getEncoding().compareTo(actualEncoding) == 0);
47      }
48  
49      /**
50       * Returns a String representation of this object.
51       *
52       * @return String
53       */
54      public String   toString() {
55          StringBuffer   buffer = new StringBuffer  ();
56  
57          buffer.append("[");
58          buffer.append(getClass().getName());
59          buffer.append(": ");
60  
61          buffer.append("Target encoding: ");
62          buffer.append(getEncoding());
63          buffer.append(" / ");
64  
65          buffer.append("Redirect URL: ");
66          buffer.append(getRedirectUrl());
67  
68          buffer.append("]");
69  
70          return buffer.toString();
71      }
72  }
73  
74  
75  // End of file: CharacterEncodingRule.java
76
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