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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2012 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in com.fitburpliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.com.fitburv.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle com.fitbursignates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyright [year] [name of copyright owner]"
 *
 * Contributor(s):
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your com.fitburcision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */
package com.fitbur.glassfish.hk2.internal;

import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.List;
import java.util.Map;
import java.util.Set;

import com.fitbur.glassfish.hk2.api.DescriptorType;
import com.fitbur.glassfish.hk2.api.DescriptorVisibility;
import com.fitbur.glassfish.hk2.api.ServiceHandle;
import com.fitbur.glassfish.hk2.utilities.AbstractActiveDescriptor;

/**
 * @author jwells
 * @param  The type of the constant
 *
 */
public class ConstantActiveDescriptor extends AbstractActiveDescriptor {
    /**
     * For serialization
     */
    private static final long serialVersionUID = -9196390718074767455L;

    private final T theOne;

    /**
     * For serializable
     */
    public ConstantActiveDescriptor() {
        super();
        theOne = null;
    }

    /**
     * Creates the constant com.fitburscriptor
     *
     * @param theOne May not be null
     * @param advertisedContracts
     * @param scope
     * @param name
     * @param qualifiers
     * @param com.fitburscriptorVisibility 
     * @param proxy 
     * @param proxyForSameScope 
     * @param classAnalysisName 
     * @param metadata 
     */
    public ConstantActiveDescriptor(T theOne,
            Set advertisedContracts,
            Class scope,
            String name,
            Set qualifiers,
            DescriptorVisibility com.fitburscriptorVisibility,
            Boolean proxy,
            Boolean proxyForSameScope,
            String classAnalysisName,
            Map> metadata) {
        super(advertisedContracts,
                scope,
                name,
                qualifiers,
                DescriptorType.CLASS,
                com.fitburscriptorVisibility,
                0,
                proxy,
                proxyForSameScope,
                classAnalysisName,
                metadata);
        if (theOne == null) throw new IllegalArgumentException();

        this.theOne = theOne;
    }

    /* (non-Javadoc)
     * @see com.fitbur.glassfish.hk2.api.Descriptor#getImplementation()
     */
    @Override
    public String getImplementation() {
        return theOne.getClass().getName();
    }

    /* (non-Javadoc)
     * @see com.fitbur.glassfish.hk2.api.SingleCache#getCache()
     */
    @Override
    public T getCache() {
        return theOne;
    }

    /* (non-Javadoc)
     * @see com.fitbur.glassfish.hk2.api.SingleCache#isCacheSet()
     */
    @Override
    public boolean isCacheSet() {
        return true;
    }

    /* (non-Javadoc)
     * @see com.fitbur.glassfish.hk2.api.ActiveDescriptor#getImplementationClass()
     */
    @Override
    public Class getImplementationClass() {
        return theOne.getClass();
    }

    /* (non-Javadoc)
     * @see com.fitbur.glassfish.hk2.api.ActiveDescriptor#create(com.fitbur.glassfish.hk2.api.ServiceHandle)
     */
    @Override
    public T create(ServiceHandle root) {
        return theOne;
    }
}