| /** |
| * Copyright (C) 2008 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.internal; |
| |
| import com.google.inject.ConfigurationException; |
| import com.google.inject.spi.InjectionPoint; |
| import com.google.inject.spi.InjectionRequest; |
| import com.google.inject.spi.StaticInjectionRequest; |
| import java.util.List; |
| import java.util.Set; |
| |
| /** |
| * Handles {@code Binder.requestInjection} and {@code Binder.requestStaticInjection} commands. |
| * |
| * @author crazybob@google.com (Bob Lee) |
| * @author jessewilson@google.com (Jesse Wilson) |
| * @author mikeward@google.com (Mike Ward) |
| */ |
| final class InjectionRequestProcessor extends AbstractProcessor { |
| |
| private final List<StaticInjection> staticInjections = Lists.newArrayList(); |
| private final Initializer initializer; |
| |
| InjectionRequestProcessor(Errors errors, Initializer initializer) { |
| super(errors); |
| this.initializer = initializer; |
| } |
| |
| @Override public Boolean visit(StaticInjectionRequest request) { |
| staticInjections.add(new StaticInjection(injector, request)); |
| return true; |
| } |
| |
| @Override public Boolean visit(InjectionRequest<?> request) { |
| Set<InjectionPoint> injectionPoints; |
| try { |
| injectionPoints = request.getInjectionPoints(); |
| } catch (ConfigurationException e) { |
| errors.merge(e.getErrorMessages()); |
| injectionPoints = e.getPartialValue(); |
| } |
| |
| initializer.requestInjection( |
| injector, request.getInstance(), request.getSource(), injectionPoints); |
| return true; |
| } |
| |
| void validate() { |
| for (StaticInjection staticInjection : staticInjections) { |
| staticInjection.validate(); |
| } |
| } |
| |
| void injectMembers() { |
| /* |
| * TODO: If you request both a parent class and one of its |
| * subclasses, the parent class's static members will be |
| * injected twice. |
| */ |
| for (StaticInjection staticInjection : staticInjections) { |
| staticInjection.injectMembers(); |
| } |
| } |
| |
| /** A requested static injection. */ |
| private class StaticInjection { |
| final InjectorImpl injector; |
| final Object source; |
| final StaticInjectionRequest request; |
| ImmutableList<SingleMemberInjector> memberInjectors; |
| |
| public StaticInjection(InjectorImpl injector, StaticInjectionRequest request) { |
| this.injector = injector; |
| this.source = request.getSource(); |
| this.request = request; |
| } |
| |
| void validate() { |
| Errors errorsForMember = errors.withSource(source); |
| Set<InjectionPoint> injectionPoints; |
| try { |
| injectionPoints = request.getInjectionPoints(); |
| } catch (ConfigurationException e) { |
| errors.merge(e.getErrorMessages()); |
| injectionPoints = e.getPartialValue(); |
| } |
| memberInjectors = injector.membersInjectorStore.getInjectors( |
| injectionPoints, errorsForMember); |
| } |
| |
| void injectMembers() { |
| try { |
| injector.callInContext(new ContextualCallable<Void>() { |
| public Void call(InternalContext context) { |
| for (SingleMemberInjector injector : memberInjectors) { |
| injector.inject(errors, context, null); |
| } |
| return null; |
| } |
| }); |
| } catch (ErrorsException e) { |
| throw new AssertionError(); |
| } |
| } |
| } |
| } |