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Diffstat (limited to 'tags/java/sca/2.0-M3-RC4/modules/binding-ejb-runtime/src/main/java/org/apache/tuscany/sca/binding/ejb/util/EJBObjectFactory.java')
| -rw-r--r-- | tags/java/sca/2.0-M3-RC4/modules/binding-ejb-runtime/src/main/java/org/apache/tuscany/sca/binding/ejb/util/EJBObjectFactory.java | 209 |
1 files changed, 0 insertions, 209 deletions
diff --git a/tags/java/sca/2.0-M3-RC4/modules/binding-ejb-runtime/src/main/java/org/apache/tuscany/sca/binding/ejb/util/EJBObjectFactory.java b/tags/java/sca/2.0-M3-RC4/modules/binding-ejb-runtime/src/main/java/org/apache/tuscany/sca/binding/ejb/util/EJBObjectFactory.java deleted file mode 100644 index 119282adb9..0000000000 --- a/tags/java/sca/2.0-M3-RC4/modules/binding-ejb-runtime/src/main/java/org/apache/tuscany/sca/binding/ejb/util/EJBObjectFactory.java +++ /dev/null @@ -1,209 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you under the Apache License, Version 2.0 (the - * "License"); you may not use this file except in compliance - * with the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, - * software distributed under the License is distributed on an - * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY - * KIND, either express or implied. See the License for the - * specific language governing permissions and limitations - * under the License. - */ -package org.apache.tuscany.sca.binding.ejb.util; - -import java.lang.reflect.InvocationTargetException; -import java.lang.reflect.Method; -import java.rmi.RemoteException; -import java.rmi.UnexpectedException; - -import javax.ejb.CreateException; -import javax.ejb.EJBLocalHome; -import javax.naming.NamingException; -import javax.rmi.CORBA.Util; - -import org.omg.CORBA.SystemException; -import org.omg.CORBA.portable.ApplicationException; -import org.omg.CORBA.portable.ObjectImpl; -import org.omg.CORBA.portable.RemarshalException; -import org.omg.stub.java.rmi._Remote_Stub; -import org.oasisopen.sca.ServiceRuntimeException; - -/** - * Factor class that is used to create EJB Proxies. - * - * @version $Rev$ $Date$ - */ -final class EJBObjectFactory { - - private EJBObjectFactory() { - } - - /** - * Get either a generated of dynamic EJB stub using the specified JNDI - * properties. - * <p> - * The returned stub will implement the specified stubInterface Interface. - * If the underlying EJB stub is not assignable from the specified - * stubInterface then a proxy is used to convert between the two. - * <p> - * The returned EJB stub may be either the pregenerated EJB stub or a - * dynamic stub. This allows a client to invoke an EJB without requiring any - * of the pregenerated EJB stub classes be available in the classpath. - * <p> - */ - static Object createStub(NamingEndpoint namingEndpoint, InterfaceInfo ejbInterface) throws NamingException, - RemoteException, CreateException { - - EJBLocator locator = namingEndpoint.getLocator(); - Object homeObject = locator.locate(namingEndpoint.getJndiName()); - /* - * The type of the object returned from the lookup is as follows: If the - * generated stub exists on the classpath, it's an instance of that - * type, otherwise, "org.omg.stub.java.rmi._Remote_Stub" or - * "org.omg.stub.javax.ejb._EJBHome_Stub" - */ - Object stub = getEJBStub(homeObject, ejbInterface); - // Cache dynamic stub only - return stub; - } - - /** - * @param homeObject - * @param ejbHomeClass - * @return - * @throws RemoteException - */ - private static Object getEJBStub(Object homeObject, InterfaceInfo ejbInterface) throws RemoteException, - CreateException { - - Object stub = null; - - // Get the business interface of the EJB - Class ejbInterfaceClass = null; - try { - ejbInterfaceClass = Thread.currentThread().getContextClassLoader().loadClass(ejbInterface.getName()); - } catch (ClassNotFoundException e) { - // ignore - } - - if (ejbInterfaceClass != null && ejbInterfaceClass.isInstance(homeObject)) { - // EJB 3 - stub = homeObject; - } else if (homeObject instanceof EJBLocalHome) { - // Local EJB - stub = createEJBLocalObject(homeObject); - } else { - // Handle dynamic stub - if (homeObject instanceof ObjectImpl) { - ObjectImpl objectImpl = (ObjectImpl)homeObject; - stub = createEJBObject(objectImpl); - }/** - * Above checks will be satisfied if Bean is running on servers like WebSphere. With this - * logic, client (SCA composite with EJB ref binding) doesn't need to include home class or - * client stubs. - * - * Below check is needed SCA composite with EJB ref binding is accessing openEJB implementation. - * For e.g if the bean is running on Geronimo. - */ - else if ((javax.rmi.PortableRemoteObject.narrow(homeObject, javax.ejb.EJBHome.class)) instanceof javax.ejb.EJBHome) { - stub = createEJBObjectFromHome(homeObject); - } else - throw new ServiceRuntimeException("Invalid stub type: " + homeObject.getClass()); - } - return stub; - } - - /** - * Create a pre-generated EJB stub - * - * @param homeObject - * @return - * @throws RemoteException - */ - static private Object createEJBLocalObject(Object homeObject) throws RemoteException { - - Object stub = null; - try { - // Find the "create()" method - Method createMethod = homeObject.getClass().getMethod("create", null); - // Create an EJB object - stub = createMethod.invoke(homeObject, null); - } catch (NoSuchMethodException e) { - // "create()" method not found, it's still a dynamic stub - stub = null; - } catch (InvocationTargetException e) { - throw new RemoteException(e.getTargetException().toString()); - } catch (Exception e) { - throw new RemoteException(e.toString()); - } - return stub; - } - - /** - * Here homeObject is instance of EJBHome - * - * @param homeObject - * @return - * @throws RemoteException - */ - private static Object createEJBObjectFromHome(Object homeObject) throws RemoteException { - - Object stub = null; - try { - // Find the "create()" method - Method createMethod = homeObject.getClass().getMethod("create", null); - // Create an EJB object - stub = createMethod.invoke(homeObject, null); - } catch (NoSuchMethodException e) { - // "create()" method not found, it's still a dynamic stub - stub = null; - } catch (InvocationTargetException e) { - throw new RemoteException(e.getTargetException().toString()); - } catch (Exception e) { - throw new RemoteException(e.toString()); - } - return stub; - } - - /** - * Create an EJBObject using RMI/IIOP APIs - * - * @param ejbHomeObject - * @return The EJBObject remote stub - * @throws CreateException - * @throws RemoteException - */ - private static Object createEJBObject(ObjectImpl ejbHomeObject) throws CreateException, RemoteException { - - try { - org.omg.CORBA_2_3.portable.InputStream in = null; - try { - org.omg.CORBA.portable.OutputStream out = ejbHomeObject._request("create", true); - in = (org.omg.CORBA_2_3.portable.InputStream)ejbHomeObject._invoke(out); - // The Remote stub should be available in JDK - // TODO: [rfeng] Work around an issue in Apache Yoko which doesn't understand the org.omg.stub.* - return in.read_Object(_Remote_Stub.class); - } catch (ApplicationException ex) { - in = (org.omg.CORBA_2_3.portable.InputStream)ex.getInputStream(); - String id = in.read_string(); - if (id.equals("IDL:javax/ejb/CreateEx:1.0")) { - throw (CreateException)in.read_value(CreateException.class); - } - throw new UnexpectedException(id); - } catch (RemarshalException ex) { - return createEJBObject(ejbHomeObject); - } finally { - ejbHomeObject._releaseReply(in); - } - } catch (SystemException ex) { - throw Util.mapSystemException(ex); - } - } -} |