From: Erik Brakkee <erik@brakkee.org>
Date: Sat, 17 Jul 2010 20:25:32 +0000 (+0000)
Subject: (no commit message)
X-Git-Tag: wamblee-utils-0.7~283
X-Git-Url: http://wamblee.org/gitweb/?a=commitdiff_plain;h=3844a8a4136edf8fc6ca8e130d6d2113f18ae034;p=utils

---

diff --git a/test/enterprise/src/main/java/org/wamblee/test/persistence/TransactionProxyFactory.java b/test/enterprise/src/main/java/org/wamblee/test/persistence/TransactionProxyFactory.java
deleted file mode 100644
index 3806dc27..00000000
--- a/test/enterprise/src/main/java/org/wamblee/test/persistence/TransactionProxyFactory.java
+++ /dev/null
@@ -1,136 +0,0 @@
-/*
- * Copyright 2005-2010 the original author or authors.
- * 
- * Licensed 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.wamblee.test.persistence;
-
-
-import java.lang.reflect.InvocationHandler;
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Method;
-import java.lang.reflect.Proxy;
-
-import javax.persistence.EntityManager;
-
-import org.wamblee.test.persistence.JpaBuilder.JpaUnitOfWork;
-import org.wamblee.test.transactions.ThreadSpecificProxyFactory;
-
-/**
- * This utility makes sure that each invocation on a certain interface is
- * carried out within a JPA unit of work. Note that this is equivalent
- * to the sementics of a requiresNew transaction attribute. 
- * 
- * Use {@link #getTransactionScopedEntityManager()} to get the transaction
- * scoped entity manager to pass to services.
- * 
- * 
- * For example: 
- * <pre>
- *     JpaBuilder builder = ...
- *     TransactionProxyFactory<Service> factory = new TransactionProxyFactory<Service>(
- *           builder, Service.class);
- *     Service service = new JpaService(factory.getTransactionScopedEntityManager());
- *     Service proxy = factory.getProxy(service);
- *     proxy.executeMethod(...); 
- * </pre>
- * The above example executes the executeMethod() call on the service object within an active transaction.
- * In the constructor of the service a transaction scoped entity manager is passed.  
- * 
- * @param T
- *            Type of interface to proxy.
- * 
- * @author Erik Brakkee
- */
-public class TransactionProxyFactory<T> {
-
-    /**
-     * Executes the call on the service within a new transaction.  
-     * 
-     * @author Erik Brakkee
-     *
-     * @param <T> Type of the service interface. 
-     */
-    private class UnitOfWorkInvocationHandler<T> implements InvocationHandler {
-
-        private T service;
-
-        public UnitOfWorkInvocationHandler(T aService) {
-            service = aService;
-        }
-
-        @Override
-        public Object invoke(Object aProxy, final Method aMethod,
-            final Object[] aArgs) throws Throwable {
-            return TransactionProxyFactory.this.jpaBuilder
-                .execute(new JpaUnitOfWork<Object>() {
-                    @Override
-                    public Object execute(EntityManager aEm) throws Exception {
-                        EntityManager oldEm = ENTITY_MANAGER.get(); 
-                        try {
-                            ENTITY_MANAGER.set(aEm);
-                            return aMethod.invoke(service, aArgs);
-                        } catch (InvocationTargetException e) {
-                            Throwable cause = e.getCause();
-                            if (cause instanceof Exception) {
-                                throw (Exception) cause;
-                            } else if (cause instanceof Error) {
-                                throw (Error) cause;
-                            }
-                            // last resort.
-                            throw new RuntimeException(e);
-                        } finally {
-                            ENTITY_MANAGER.set(oldEm);
-                        }
-                    }
-                });
-        }
-
-    }
-
-    private static final ThreadSpecificProxyFactory<EntityManager> ENTITY_MANAGER = new ThreadSpecificProxyFactory<EntityManager>(
-        EntityManager.class);
-
-    private JpaBuilder jpaBuilder;
-    private Class<T> clazz;
-
-    /**
-     * Constructs the transaction proxy.
-     * 
-     * @param aJpaBuilder
-     */
-    public TransactionProxyFactory(JpaBuilder aJpaBuilder, Class<T> aClass) {
-        jpaBuilder = aJpaBuilder;
-        clazz = aClass;
-    }
-
-    public EntityManager getTransactionScopedEntityManager() {
-        return ENTITY_MANAGER.getProxy();
-    }
-
-    public T getProxy(T aService) {
-        InvocationHandler handler = new UnitOfWorkInvocationHandler<T>(aService);
-        Class proxyClass = Proxy.getProxyClass(clazz.getClassLoader(),
-            new Class[] { clazz });
-        T proxy;
-        try {
-            proxy = (T) proxyClass.getConstructor(
-                new Class[] { InvocationHandler.class }).newInstance(
-                new Object[] { handler });
-            return proxy;
-        } catch (Exception e) {
-            throw new RuntimeException("Could not create proxy for " +
-                clazz.getName(), e);
-        }
-    }
-}