| /** |
| * Copyright (C) 2009 Google Inc. |
| * |
| * 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 com.google.inject; |
| |
| import com.google.inject.internal.Errors; |
| import com.google.inject.internal.ErrorsException; |
| import com.google.inject.internal.FailableCache; |
| import com.google.inject.internal.ImmutableList; |
| import static com.google.inject.internal.Iterables.concat; |
| import com.google.inject.spi.InjectionPoint; |
| |
| /** |
| * Constructor injectors by type. |
| * |
| * @author jessewilson@google.com (Jesse Wilson) |
| */ |
| class ConstructorInjectorStore { |
| private final InjectorImpl injector; |
| |
| private final FailableCache<TypeLiteral<?>, ConstructorInjector<?>> cache |
| = new FailableCache<TypeLiteral<?>, ConstructorInjector<?>> () { |
| @SuppressWarnings("unchecked") |
| protected ConstructorInjector<?> create(TypeLiteral<?> type, Errors errors) |
| throws ErrorsException { |
| return createConstructor(type, errors); |
| } |
| }; |
| |
| ConstructorInjectorStore(InjectorImpl injector) { |
| this.injector = injector; |
| } |
| |
| /** |
| * Returns a new complete constructor injector with injection listeners registered. |
| */ |
| @SuppressWarnings("unchecked") // the ConstructorInjector type always agrees with the passed type |
| public <T> ConstructorInjector<T> get(TypeLiteral<T> key, Errors errors) throws ErrorsException { |
| return (ConstructorInjector<T>) cache.get(key, errors); |
| } |
| |
| private <T> ConstructorInjector<T> createConstructor(TypeLiteral<T> type, Errors errors) |
| throws ErrorsException { |
| int numErrorsBefore = errors.size(); |
| |
| InjectionPoint injectionPoint; |
| try { |
| injectionPoint = InjectionPoint.forConstructorOf(type); |
| } catch (ConfigurationException e) { |
| errors.merge(e.getErrorMessages()); |
| throw errors.toException(); |
| } |
| |
| SingleParameterInjector<?>[] constructorParameterInjectors |
| = injector.getParametersInjectors(injectionPoint.getDependencies(), errors); |
| MembersInjectorImpl<T> membersInjector = injector.membersInjectorStore.get(type, errors); |
| |
| /*if[AOP]*/ |
| ImmutableList<MethodAspect> injectorAspects = injector.state.getMethodAspects(); |
| ImmutableList<MethodAspect> methodAspects = membersInjector.getAddedAspects().isEmpty() |
| ? injectorAspects |
| : ImmutableList.copyOf(concat(injectorAspects, membersInjector.getAddedAspects())); |
| ConstructionProxyFactory<T> factory = new ProxyFactory<T>(injectionPoint, methodAspects); |
| /*end[AOP]*/ |
| /*if[NO_AOP] |
| ConstructionProxyFactory<T> factory = new DefaultConstructionProxyFactory<T>(injectionPoint); |
| end[NO_AOP]*/ |
| |
| errors.throwIfNewErrors(numErrorsBefore); |
| |
| return new ConstructorInjector<T>(membersInjector.getInjectionPoints(), factory.create(), |
| constructorParameterInjectors, membersInjector); |
| } |
| } |