StaticWeaver


1   package oracle.toplink.essentials.ejb.cmp3;
2   
3   import java.net.URL  ;
4   import java.util.Iterator  ;
5   import java.util.List  ;
6   import java.util.Set  ;
7   
8   import javax.persistence.Persistence;
9   import javax.persistence.spi.PersistenceUnitInfo;
10  
11  import oracle.toplink.essentials.ejb.cmp3.persistence.PersistenceUnitProcessor;
12  import oracle.toplink.essentials.ejb.cmp3.persistence.SEPersistenceUnitInfo;import oracle.toplink.essentials.internal.ejb.cmp3.EntityManagerSetupImpl;
13  
14  /**
15   *  Utility used to statically weave entities for use in TopLink EJB 3.0
16   *  
17   *  The main method of this class should be invoked with the -javaagent tag to initiate weaving.
18   *  
19   *  The following system arguments should be provided:
20   *  -javaagent:<toplink_agent_jar_location>
21   *  -Dtoplink.weaving.output.path=<location_to_put_weaved_classes>
22   *  -Dtoplink.validation-only=true
23   *  -Dtoplink.weaving.overwrite.existing=true if you wish the output of static weaving to overwrite existing classes 
24   *  
25   *  Weaving will occur for all persistence units found on the classpath.
26   */
27  public class StaticWeaver {
28  
29  
30      /**
31       *  This method will search for all of the persistence archives on the classpath and weave
32       *  all the classes associated with those persistence units.
33       */
34      public static void main(String  [] args) {
35          Set  <URL  > urls = PersistenceUnitProcessor.findPersistenceArchives();
36          Iterator  <URL  > urlIterator = urls.iterator();
37          while (urlIterator.hasNext()){
38              List  <SEPersistenceUnitInfo> puInfoList = PersistenceUnitProcessor.getPersistenceUnits(urlIterator.next(), Thread.currentThread().getContextClassLoader());
39              Iterator  <SEPersistenceUnitInfo> puInfoListIterator = puInfoList.iterator();
40              while (puInfoListIterator.hasNext()){
41                  Persistence.createEntityManagerFactory(puInfoListIterator.next().getPersistenceUnitName());
42              }
43          }
44      }
45  
46  }
47
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