/**

  Licensed to the Apache Software Foundation (ASF) under one or more

  contributor license agreements.  See the NOTICE file distributed with

  this work for additional information regarding copyright ownership.

  The ASF licenses this file to You 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 org.apache.commons.inject.impl;

 import org.apache.commons.inject.api.IInjector;

 import org.apache.commons.inject.api.IProvider;

 public abstract class AbstractScopedProvider<T> implements IProvider<T>, IInjectorAware {

         private final IProvider<T> baseProvider;

         private IInjector injector;

         protected boolean initialized;

         public AbstractScopedProvider(IProvider<T> pBaseProvider) {

                 baseProvider = pBaseProvider;

         }

         protected IInjector getInjector() {

                 if (injector == null) {

                         throw new IllegalStateException("The Injector has not been initialized.");

                 }

                 return injector;

         }

         @Override

         public T get() {

                 final T t = baseProvider.get(getInjector());

                 return t;

         }

         @Override

         public Class<? extends T> getType() {

                 return baseProvider.getType();

         }

         @Override

         public T get(IInjector pInjector) {

                 return get();

         }

         @Override

         public void init(IInjector pInjector) {

                 injector = pInjector;

                 if (baseProvider instanceof IInjectorAware) {

                         ((IInjectorAware) baseProvider).init(pInjector);

                 }

                 initialized = true;

         }

 }