| /* |
| * 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.commons.proxy2.stub; |
| |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| import org.apache.commons.lang3.ArrayUtils; |
| import org.apache.commons.lang3.Validate; |
| import org.apache.commons.lang3.builder.Builder; |
| import org.apache.commons.proxy2.Invoker; |
| import org.apache.commons.proxy2.ObjectProvider; |
| import org.apache.commons.proxy2.ProxyFactory; |
| import org.apache.commons.proxy2.interceptor.SwitchInterceptor; |
| import org.apache.commons.proxy2.invoker.NullInvoker; |
| import org.apache.commons.proxy2.provider.ConstantProvider; |
| |
| public class StubBuilder<T> implements Builder<T> |
| { |
| //****************************************************************************************************************** |
| // Fields |
| //****************************************************************************************************************** |
| |
| private final ProxyFactory proxyFactory; |
| private final T target; |
| private final SwitchInterceptor switchInterceptor = new SwitchInterceptor(); |
| private final Set<Class<?>> proxyTypes = new HashSet<Class<?>>(); |
| |
| //****************************************************************************************************************** |
| // Constructors |
| //****************************************************************************************************************** |
| |
| public StubBuilder(ProxyFactory proxyFactory, Class<T> type) |
| { |
| this(proxyFactory, type, NullInvoker.INSTANCE); |
| } |
| |
| public StubBuilder(ProxyFactory proxyFactory, Class<T> type, Invoker invoker) |
| { |
| this.proxyFactory = proxyFactory; |
| this.target = proxyFactory.createInvokerProxy(invoker, type); |
| this.proxyTypes.add(Validate.notNull(type)); |
| } |
| |
| public StubBuilder(ProxyFactory proxyFactory, Class<T> type, ObjectProvider<? extends T> provider) |
| { |
| this.proxyFactory = proxyFactory; |
| this.target = proxyFactory.createDelegatorProxy(provider, type); |
| this.proxyTypes.add(Validate.notNull(type)); |
| } |
| |
| public StubBuilder(ProxyFactory proxyFactory, Class<T> type, T target) |
| { |
| this.proxyFactory = proxyFactory; |
| this.target = proxyFactory.createDelegatorProxy(new ConstantProvider<T>(target), type); |
| this.proxyTypes.add(Validate.notNull(type)); |
| } |
| |
| //****************************************************************************************************************** |
| // Other Methods |
| //****************************************************************************************************************** |
| |
| @Override |
| public T build() |
| { |
| return proxyFactory.createInterceptorProxy(target, switchInterceptor, |
| proxyTypes.toArray(ArrayUtils.EMPTY_CLASS_ARRAY)); |
| } |
| |
| public <O> StubBuilder<T> train(BaseTrainer<?, O> trainer) |
| { |
| final TrainingContext trainingContext = TrainingContext.join(proxyFactory); |
| try |
| { |
| final O trainee = trainingContext.push(trainer.traineeType, switchInterceptor); |
| trainer.train(trainee); |
| proxyTypes.add(trainer.traineeType); |
| } |
| finally |
| { |
| trainingContext.part(); |
| } |
| return this; |
| } |
| |
| public StubBuilder<T> addProxyTypes(Class<?>... proxyTypes) |
| { |
| Collections.addAll(this.proxyTypes, Validate.noNullElements(proxyTypes)); |
| return this; |
| } |
| } |