ejbref.java

来自「RESIN 3.2 最新源码」· Java 代码 · 共 622 行 · 第 1/2 页

    EjbRefContext context = EjbRefContext.createLocal();

    context.add(this);
    
    WebBeansContainer webBeans = WebBeansContainer.create();
    ComponentImpl comp = null;

    if (_home != null) {
      if (comp == null && _ejbLink != null)
        comp = webBeans.bind(_loc, _home, _ejbLink);
      
      if (comp == null)
        comp = webBeans.bind(_loc, _home, _ejbRefName);
      
      if (comp == null)
        comp = webBeans.bind(_loc, _home);

      if (comp == null) {
        comp = new ObjectProxyComponent(webBeans, this, _home);
        comp.setName(_ejbRefName);
        comp.addNameBinding(_ejbRefName);
        // weaker priority
        comp.setType(webBeans.createComponentType(Standard.class));

        webBeans.addComponent(comp);
      }
    }
    else if (_remote != null) {
      if (comp == null && _ejbLink != null)
        comp = webBeans.bind(_loc, _home, _ejbLink);

      if (comp == null)
        comp = webBeans.bind(_loc, _remote, _ejbRefName);
      
      if (comp == null)
        comp = webBeans.bind(_loc, _remote);

      if (comp == null) {
        comp = new ObjectProxyComponent(webBeans, this, _remote);
        comp.setName(_ejbRefName);
        comp.addNameBinding(_ejbRefName);
        // weaker priority
        comp.setType(webBeans.createComponentType(Standard.class));

        webBeans.addComponent(comp);
      }
    }

    String fullEjbRefName = Jndi.getFullName(_ejbRefName);

    boolean bind = false;
    try {
      if (bind)
        Jndi.rebindDeep(fullEjbRefName, this);
    } catch (Exception e) {
      throw e;
    }
  }

  /**
   * Creates the object from the proxy.
   *
   * @return the object named by the proxy.
   */
  public Object createObject(Hashtable env)
    throws NamingException
  {
    if (_target == null) {
      // ejb/0f6g, TCK
      if (_foreignName != null)
        resolve(null);
      else if (_home != null)
        resolve(_home);
      else if (_remote != null)
        resolve(_remote);
      else if (getLocal() != null) // ejb/0f6g
        resolve(getLocal());
      else
        resolve(null);
    }

    return _target;
  }

  public Object getByType(Class type)
  {
    try {
      if (_home != null && type.isAssignableFrom(_home))
        return createObject(null);

      if (_remote != null && type.isAssignableFrom(_remote))
        return createObject(null);

      if (_foreignName != null) {
        int pos = _foreignName.indexOf("#");

        if (pos > 0) {
          String intf = _foreignName.substring(++pos).replace("_", ".");

          // TCK: application-client.xml with multiple business interfaces.
          if (! type.getName().equals(intf))
            return null;
        }

        Object target;

        // XXX: JDK's iiop lookup
        String foreignName = _foreignName.replace('.', '_');

        if (_context != null) {
          target = _context.lookup(foreignName);
        } else {
          target = Jndi.lookup(foreignName);
        }

        if (target != null && type != null)
          return PortableRemoteObject.narrow(target, type);
      }
    } catch (Exception e) {
      // log.log(Level.FINER, e.toString(), e);
    }

    return null;
  }

  private void resolve(Class type)
    throws NamingException
  {
    if (log.isLoggable(Level.FINEST))
      log.log(Level.FINEST, L.l("{0} resolving", this));

    if (_foreignName != null)
      _target = lookupByForeignJndi(_foreignName, type);
    else if (_ejbLink != null)
      _target = lookupByLink(_ejbLink, type);
    else
      _target = lookupLocal(type);

    if (log.isLoggable(Level.CONFIG))
      log.log(Level.CONFIG, L.l("{0} resolved", this));
  }

  private Object lookupByLink(String link, Class type)
    throws NamingException
  {
    Object target = null;

    String archiveName;
    String ejbName;

    int hashIndex = link.indexOf('#');

    if (hashIndex < 0) {
      archiveName = null;
      ejbName = link;
    }
    else {
      archiveName = link.substring(0, hashIndex);
      ejbName = link.substring(hashIndex + 1);
    }

    try {
      Path path = archiveName == null ? _modulePath : _modulePath.lookup(archiveName);

      if (true)
	throw new IllegalStateException();
      /*
      EJBServer ejbServer = EJBServer.getLocal();
      AbstractServer server = null;

      if (ejbServer != null) {
        server = ejbServer.getServer(path, ejbName);

        if (server == null && archiveName == null)
          server = ejbServer.getServer(ejbName);
      }

      if (server != null) {
        if (isEjbLocalRef()) {
          target = server.getEJBLocalHome();

          if (target != null) {
            // ejb/0f6g
            if (type != null && ! type.isAssignableFrom(target.getClass()))
              target = null;
          }

          if (target == null) {
            target = server.getLocalObject(type);
          }
        } else {
          target = server.getEJBHome();

          if (target != null) {
            if (type != null && ! type.isAssignableFrom(target.getClass()))
              target = null;
          }

          if (target == null) {
            target = server.getRemoteObject(type);
          }
        }

        if (target == null) {
          log.log(Level.FINE, L.l("no home or business interface is available for '{0}'", server));

          throw new NamingException(L.l("{0} '{1}' ejb bean found with ejb-link '{2}' has no home or business interface",
                                        getTagName(), _ejbRefName, link));
        }
      }
      else {
        target = lookupByForeignJndi(_ejbLink, type);
      }

      if (target != null && target instanceof ObjectProxy) {
        ObjectProxy proxy = (ObjectProxy) target;
        target = proxy.createObject(null);
      }
      */

      if (false) throw new NamingException();
    }
    catch (NamingException e) {
      throw e;
    }
    catch (Exception e) {
      log.log(Level.FINER, e.toString(), e);
      throw new NamingException(L.l("{0} '{1}'  ejb-link '{2}' invalid ",
                                    getTagName(), _ejbRefName, link));
    }

    return target;
  }

  private Object lookupByForeignJndi(String foreignName, Class type)
    throws NamingException
  {
    Object target = Jndi.lookup(foreignName);

    return target;

    /* XXX
    Object target = null;

    String fullForeignName = Jndi.getFullName(foreignName);
    String fullEjbName = Jndi.getFullName(_ejbRefName);

    if (_context != null) {
      target = _context.lookup(fullForeignName);
    }
    else if (fullForeignName.equals(fullEjbName)) {
      // ejb/0ga0
      return null;
    }
    else
      target = Jndi.lookup(foreignName);

    if (target == null) {
      if (fullForeignName.equals(fullEjbName))
        throw new NamingException(L.l("{0} '{1}' cannot be resolved",
                                      getTagName(), _ejbRefName));
      else
        throw new NamingException(L.l("{0} '{1}' foreign-name '{2}' not found",
                                      getTagName(), _ejbRefName, foreignName));
    }

    if (type != null)
      target = PortableRemoteObject.narrow(target, type);

    return target;
    */
  }

  private Object lookupLocal(Class type)
  {
    /*
    EjbServerManager manager = EjbServerManager.getLocal();

    if (manager != null) {
      Object value = manager.getLocalByInterface(type);

      if (value instanceof ObjectProxy) {
        try {
          return ((ObjectProxy) value).createObject(null);
        } catch (Exception e) {
          throw new RuntimeException(e);
        }
      }
      else if (value != null)
        return value;
      else
        return manager.getRemoteByInterface(type);
    }
*/
    /*
      EjbRefContext context = EjbRefContext.getLocal();

      if (context != null)
        return context.findByType(type);
    */

    return null;
  }

  public String toString()
  {
    return getClass().getSimpleName()
      +  "[" + _ejbRefName + ", " + _ejbLink + ", " +  _foreignName + "]";
  }
}