| /** |
| * Copyright (C) 2011 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 static com.google.inject.internal.util.Preconditions.checkNotNull; |
| import com.google.inject.spi.Dependency; |
| import com.google.inject.spi.ProviderInstanceBinding; |
| |
| /** |
| * Adapts {@link ProviderInstanceBinding} providers, ensuring circular proxies |
| * fail (or proxy) properly. |
| * |
| * @author sameb@google.com (Sam Berlin) |
| */ |
| final class InternalFactoryToInitializableAdapter<T> extends ProviderInternalFactory<T> { |
| |
| private final Initializable<Provider<? extends T>> initializable; |
| |
| public InternalFactoryToInitializableAdapter( |
| Initializable<Provider<? extends T>> initializable, |
| Object source, boolean allowProxy, |
| ProvisionListenerStackCallback<T> provisionCallback) { |
| super(source, allowProxy, provisionCallback); |
| this.initializable = checkNotNull(initializable, "provider"); |
| } |
| |
| public T get(Errors errors, InternalContext context, Dependency<?> dependency, boolean linked) |
| throws ErrorsException { |
| return circularGet(initializable.get(errors), errors, context, dependency, linked); |
| } |
| |
| @Override |
| protected T provision(javax.inject.Provider<? extends T> provider, Errors errors, |
| Dependency<?> dependency, ConstructionContext<T> constructionContext) throws ErrorsException { |
| try { |
| return super.provision(provider, errors, dependency, constructionContext); |
| } catch(RuntimeException userException) { |
| throw errors.withSource(source).errorInProvider(userException).toException(); |
| } |
| } |
| |
| @Override public String toString() { |
| return initializable.toString(); |
| } |
| } |