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/*
 * 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.tuscany.sca.implementation.spring.webapp;

import org.springframework.context.ApplicationContextAware;
import org.springframework.context.support.ApplicationObjectSupport;

/**
 * A singleton utility class that can be added to the Spring application context to receive injection of the containing
 * Spring application context.
 * 
 * The Spring bean definition file is: org/apache/tuscany/sca/implementation/spring/webapp/spring-webapp-context.xml
 */
public class ApplicationContextAccessorBean extends ApplicationObjectSupport implements ApplicationContextAware {
    public final static String BEAN_ID = "tuscanySpringApplicationContextAccessor";
    private final static ApplicationContextAccessorBean INSTANCE = new ApplicationContextAccessorBean();

    private ApplicationContextAccessorBean() {
    }

    // Spring static factory method to create the singleton instance
    public static ApplicationContextAccessorBean getInstance() {
        return INSTANCE;
    }

}