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/*
 * 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 shaded.shaded.com.google.inject.internal;

import static shaded.shaded.com.google.common.base.Preconditions.checkNotNull;

import shaded.shaded.com.google.inject.spi.Dependency;
import shaded.shaded.com.google.inject.spi.ProviderInstanceBinding;

/**
 * Adapts {@link ProviderInstanceBinding} providers, ensuring circular proxies fail (or proxy)
 * properly.
 *
 * @author [email protected] (Sam Berlin)
 */
final class InternalFactoryToInitializableAdapter extends ProviderInternalFactory {

  private final ProvisionListenerStackCallback provisionCallback;
  private final Initializable> initializable;

  public InternalFactoryToInitializableAdapter(
      Initializable> initializable,
      Object source,
      ProvisionListenerStackCallback provisionCallback) {
    super(source);
    this.provisionCallback = provisionCallback;
    this.initializable = checkNotNull(initializable, "provider");
  }

  @Override
  public T get(InternalContext context, Dependency dependency, boolean linked)
      throws InternalProvisionException {
    return circularGet(initializable.get(), context, dependency, provisionCallback);
  }

  @Override
  protected T provision(
      javax.inject.Provider provider,
      Dependency dependency,
      ConstructionContext constructionContext)
      throws InternalProvisionException {
    try {
      return super.provision(provider, dependency, constructionContext);
    } catch (RuntimeException userException) {
      throw InternalProvisionException.errorInProvider(userException).addSource(source);
    }
  }

  @Override
  public String toString() {
    return initializable.toString();
  }
}