BehaviorProtocolCheckerFactory


1   /* $Id: BehaviorProtocolCheckerFactory.java,v 1.2 2004/09/10 14:16:48 hnetynka Exp $ */
2   package SOFA.SOFAnode.Util;
3   
4   /**
5    * A factory for getting a checker implementing interface for behavior protocol conformance checker.
6    *
7    * @author  Stanislav Visnovsky, modified by Petr Hnetynka
8    * @version 2.0.0
9    * @see BehaviorProtocolChecker
10  */
11  
12  public class BehaviorProtocolCheckerFactory {
13  
14  /**
15    * Creates and returns an implementation of BehaviorProtocolChecker intarface. 
16    * The <em>className</em> parameter specifies the name of the class that implements
17    * BehaviorProtocolChecker interface. If the specified checker cannot be created or
18    * the parameter is <em>null</em>, an instance of the default implementation is returned.
19    *
20    * @param className class name of the protocol checker
21    * @return protocol checker instance
22    */
23    public static BehaviorProtocolChecker getChecker(String   className) {
24      if (className == null)
25        return new checker();
26      Class   cl = null;
27      try {
28        cl = BehaviorProtocolCheckerFactory.class.forName(className);
29      } catch (ClassNotFoundException   e) {
30        return new checker();
31      }
32      BehaviorProtocolChecker ret = null;
33      try {
34        ret = (BehaviorProtocolChecker) cl.newInstance();
35      } catch (Exception   e) {
36        return new checker();
37      }
38      return ret;
39    }
40  }
41

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