| /* |
| * 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 WARRANTIESOR 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.aries.jpa.support.osgi.impl; |
| |
| import java.lang.reflect.InvocationHandler; |
| import java.lang.reflect.InvocationTargetException; |
| import java.lang.reflect.Method; |
| |
| import javax.persistence.EntityManager; |
| |
| import org.apache.aries.jpa.supplier.EmSupplier; |
| |
| public class EmProxy implements InvocationHandler { |
| EmSupplier emSupplier; |
| |
| public EmProxy(EmSupplier emSupplier) { |
| this.emSupplier = emSupplier; |
| } |
| |
| @Override |
| public Object invoke(Object proxy, Method method, Object[] args) throws Throwable { |
| EntityManager em = emSupplier.get(); |
| if (em == null) { |
| throw new IllegalStateException("EntityManager not available. Make sure you run in an @Transactional method"); |
| } |
| try { |
| return method.invoke(em, args); |
| } catch (InvocationTargetException ex) { // NOSONAR |
| throw ex.getTargetException(); |
| } |
| } |
| |
| } |