PolicyManagerAccess.java

/*******************************************************************************
 * Mission Control Technologies, Copyright (c) 2009-2012, United States Government
 * as represented by the Administrator of the National Aeronautics and Space 
 * Administration. All rights reserved.
 *
 * The MCT platform is 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.
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 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 
 * License for the specific language governing permissions and limitations under 
 * the License.
 *
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package gov.nasa.arc.mct.collection.access;

import gov.nasa.arc.mct.services.component.PolicyManager;

import java.util.concurrent.atomic.AtomicReference;

/**
 * Policy manager access implementation class.
 *
 */
public final class PolicyManagerAccess {
    private static AtomicReference<PolicyManager> manager = new AtomicReference<PolicyManager>();
    
    /**
     * Sets the policy manager instance.
     * @param policyManager - The policy manager.
     */
    public void setPolicyManager(PolicyManager policyManager) {
        manager.set(policyManager);
    }
    
    /**
     * Releases the policy manager and set as null.
     * @param policyManager - release this policy manager.
     */
    public void releasePolicyManager(PolicyManager policyManager) {
        manager.set(null);
    }

    /**
     * Gets the policy manager.
     * @return PolicyManager.
     */
    public static PolicyManager getPolicyManager() {
        return manager.get();
    }
}