AddressingBuilder


1   package org.objectweb.celtix.ws.addressing;
2   
3   
4   import java.util.logging.Level  ;
5   import java.util.logging.Logger  ;
6   
7   
8   import org.objectweb.celtix.common.logging.LogUtils;
9   import static org.objectweb.celtix.ws.addressing.JAXWSAConstants.DEFAULT_ADDRESSING_BUILDER;
10  
11  
12  /**
13   * Factory for WS-Addressing elements.
14   * <p>
15   * Note that the JAXB generated types are used directly to represent 
16   * WS-Addressing schema types. Hence there are no factory methods defined
17   * on this class for those types, as they may be instanted in the normal
18   * way via the JAXB generated ObjectFactory.
19   */
20  public abstract class AddressingBuilder implements AddressingType {
21  
22      private static final Logger   LOG = 
23          LogUtils.getL7dLogger(AddressingBuilder.class);
24      private static AddressingBuilder builder;
25  
26      /**
27       * Non-public constructor prevents instantiation.
28       */
29      protected AddressingBuilder() {
30      }
31  
32      /**
33       * AddressingBuilder factory method.
34       *
35       * @return AddressingBuilder instance 
36       */
37      public static AddressingBuilder getAddressingBuilder() { 
38          synchronized (AddressingBuilder.class) {
39              if (builder == null) {
40                  String   className = DEFAULT_ADDRESSING_BUILDER;
41                  try {
42                      Class   cls = Class.forName(className);
43                      builder = (AddressingBuilder)cls.newInstance();
44                  } catch (ClassNotFoundException   cnfe) {
45                      cnfe.printStackTrace();
46                      LogUtils.log(LOG,
47                                   Level.WARNING, 
48                                   "BUILDER_CLASS_NOT_FOUND_MSG", 
49                                   cnfe,
50                                   className);
51                  } catch (Exception   ex) {
52                      ex.printStackTrace();
53                      LogUtils.log(LOG,
54                                   Level.WARNING,
55                                   "BUILDER_INSTANTIATION_FAILED_MSG",
56                                   ex,
57                                   className);
58                  }
59              }
60          }
61          return builder;
62      }
63      
64      /**
65       * AddressingProperties factory method.
66       *  
67       * @return a new AddressingProperties instance
68       */
69      public abstract AddressingProperties newAddressingProperties();
70      
71      /**
72       * Returns an instance of
73       * <code>javax.ws.addressing.AddressingConstants</code>
74       * <p>
75       * <b>Note</b>: This is a new method since Early Draft 1.
76       * 
77       * @return The new AddressingConstants.
78       */
79      public abstract AddressingConstants newAddressingConstants();
80  }
81
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