PageTranslatorFactory


1   /**
2    * Title:        OpenUSS - Open Source University Support System
3    * Description:  Page Translator Factory for Presentation
4    * Copyright:    Copyright (c) B. Lofi Dewanto
5    * Company:      University of Muenster
6    * @author  B. Lofi Dewanto
7    * @version 1.0
8    */
9   package org.openuss.presentation.enhydra.framework.multilanguage;
10  
11  import com.lutris.appserver.server.httpPresentation.*;
12  
13  import java.lang.reflect.*;
14  
15  import java.util.*;
16  
17  import org.enhydra.xml.xmlc.html.*;
18  
19  
20  /**
21   * Page Translator Factory for the presentation objects in Enhydra.
22   *
23   * @author  B. Lofi Dewanto
24   * @version 1.0
25   */
26  public class PageTranslatorFactory {
27      // Static variables
28      private static String   TRANSLATION_SUFFIX = "Translator";
29  
30      /**
31       * Translate the page with its respective translation.
32       */
33      public static HTMLObjectImpl createAndTranslate(HttpPresentationComms comms, 
34                                                      Locale locale, 
35                                                      String   fullClassName)
36                                               throws Exception   {
37          // The name of the translation class is
38          // Page Name Class + Translator
39          // Example:
40          // - Page name        : LoginApplicationDetailOfAssistant.java
41          // - Translation name : LoginApplicationDetailOfAssistantTranslator.java
42          String   translationFullClassName = new String  (fullClassName.concat(
43                                                               TRANSLATION_SUFFIX));
44  
45          // Create the page and translate it
46          Class   objectClass = Class.forName(translationFullClassName);
47  
48          // Get the constructor
49          Class   myHttpPresentationComms = Class.forName(
50                                                  "com.lutris.appserver.server.httpPresentation.HttpPresentationComms");
51          Class   myLocale = Class.forName("java.util.Locale");
52          Class  [] parameterTypes = new Class  [2];
53          parameterTypes[0] = myHttpPresentationComms;
54          parameterTypes[1] = myLocale;
55  
56          Constructor objectConstructor = objectClass.getConstructor(
57                                                  parameterTypes);
58  
59          // Create the object with the constructor
60          // Translate the page and return it
61          Object  [] initArgs = new Object  [2];
62          initArgs[0] = comms;
63          initArgs[1] = locale;
64  
65          BasePageTranslator translator = (BasePageTranslator) objectConstructor.newInstance(
66                                                  initArgs);
67  
68          try {
69              translator.translatePage();
70          } catch (Exception   ex) {
71              // Error on translation, just ignore
72              System.out.println("Error on translating the page: " + 
73                                 translator + " - " + ex);
74          }
75  
76          return translator.getPage();
77      }
78  }
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