Retrieve retrieve Entity Class mapping from jboss

[fsommavilla]

Hi,
I'd like to know if there is a way to retrieve a list of Entity Class mapping, from JBOSS like in Hibernate with

new Configuration().configure().getClassMappings();

But without implementing a MBean, just with JNDI and JBOSS api ?

I'am using JBoss AS v.4.0.5 and EJB3 with JBoss-ide plugins.

Thx.

[florian79]

I hava just a bad solution, but it would be greate to find something better:

 public static Class[] getClassesFromPackage(final String strPackageName) throws ClassNotFoundException
 {
 ArrayList<Class> classes = new ArrayList<Class>();
 // Get a File object for the package
 File directory = null;
 String[] files = null;
 try
 {
 ClassLoader cld = Thread.currentThread().getContextClassLoader();
 if (cld == null)
 {
 throw new ClassNotFoundException("Can't get class loader.");
 }
 String path = strPackageName.replace('.', '/');
 //String path = '/' + pckgname.replace('.', '/');
 URL resource = cld.getResource(path);
 if (resource == null)
 {
 throw new ClassNotFoundException("No resource for " + path);
 }
 if(resource.getPath().contains("!"))
 {
 String[] arZipPath = resource.getPath().split("\\!");
 if(arZipPath.length >= 1)
 {
 String strZipPath = arZipPath[0].substring(6);//cut up 'file:/'
 try {
 JarFile jarFile = new JarFile(new File(strZipPath));
 List<String> lClassNames = new ArrayList<String>();
 for ( Enumeration e = jarFile.entries(); e.hasMoreElements(); )
 {
 JarEntry target = (JarEntry) e.nextElement();
 String strTargetName = target.getName();
 if(strTargetName.endsWith(".class") && strTargetName.startsWith(path + "/") && !target.isDirectory())
 {
 String strClassName = strTargetName.substring(path.length()+1);
 if(!strClassName.contains("/"))
 lClassNames.add(strClassName);
 }

 }
 files = (String[])lClassNames.toArray(new String[lClassNames.size()]);
 }
 catch (IOException e)
 {
 throw new ClassNotFoundException(strPackageName + " (" + strZipPath + ") does not appear to be a valid (JAR-) package");
 }
 }
 }
 else
 {
 directory = new File(resource.getFile());
 if (directory.exists())
 {
 // Get the list of the files contained in the package
 files = directory.list();
 Arrays.sort(files);
 }
 else
 {
 throw new ClassNotFoundException(strPackageName + " does not appear to be a valid package");
 }
 }
 }
 catch (NullPointerException x)
 {
 throw new ClassNotFoundException(strPackageName + " (" + directory + ") does not appear to be a valid package");
 }
 for (int i = 0; i < files.length; i++)
 {
 // we are only interested in .class files
 if (files.endsWith(".class"))
 {
 // removes the .class extension
 try
 {
 classes.add(Class.forName(strPackageName + '.' + files.substring(0, files.length() - 6)));
 }
 catch (Exception e) {}
 }
 }

 Class[] classesA = new Class[classes.size()];
 classes.toArray(classesA);
 return classesA;
 }

[florian79]

I created a statless Sessionbean as followed:

@Stateless
public class BaseSession implements BaseSessionRemote, BaseSessionLocal
{

 @Resource SessionContext context;
 @PersistenceContext(unitName="myName") private EntityManager entityManager;

 public Map<String,EntityPersister> getAllClassMetadata()
 {
 Map<String,EntityPersister> metadata = null;
 try
 {
 HibernateEntityManager hibernateEntityManager = (HibernateEntityManager)entityManager.getDelegate();
 metadata = hibernateEntityManager.getSession().getSessionFactory().getAllClassMetadata();
 }
 catch(ClassCastException e)
 {
 LoggerImpl.getInstance().log(Logger.iLOGG_ERROR, this, e);
 metadata = new HashMap<String,EntityPersister>();
 }
 return metadata;
 }
}

and then iterate over all maped entities:

 Map m = myPortalSession.getEntityManager().getAllClassMetadata();
 Set<Map.Entry> s = m.entrySet();
 for (Map.Entry e : s)
 {
 System.out.println(e.getKey() + "--->" + e.getValue());
 }