| /** |
| * Copyright (C) 2006 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.Provider; |
| import com.google.inject.ProvisionException; |
| import com.google.inject.spi.Dependency; |
| |
| /** |
| * @author crazybob@google.com (Bob Lee) |
| */ |
| final class ProviderToInternalFactoryAdapter<T> implements Provider<T> { |
| |
| private final InjectorImpl injector; |
| private final InternalFactory<? extends T> internalFactory; |
| |
| public ProviderToInternalFactoryAdapter(InjectorImpl injector, |
| InternalFactory<? extends T> internalFactory) { |
| this.injector = injector; |
| this.internalFactory = internalFactory; |
| } |
| |
| public T get() { |
| final Errors errors = new Errors(); |
| try { |
| T t = injector.callInContext(new ContextualCallable<T>() { |
| public T call(InternalContext context) throws ErrorsException { |
| Dependency dependency = context.getDependency(); |
| // Always pretend that we are a linked binding, to support |
| // scoping implicit bindings. If we are not actually a linked |
| // binding, we'll fail properly elsewhere in the chain. |
| return internalFactory.get(errors, context, dependency, true); |
| } |
| }); |
| errors.throwIfNewErrors(0); |
| return t; |
| } catch (ErrorsException e) { |
| throw new ProvisionException(errors.merge(e.getErrors()).getMessages()); |
| } |
| } |
| |
| @Override public String toString() { |
| return internalFactory.toString(); |
| } |
| } |