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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2011 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 compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.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 designates 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:
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 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
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 * either the CDDL, the GPL Version 2 or to extend the choice of license to
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 */


package org.glassfish.osgihttp;

import com.sun.enterprise.web.WebModule;

import javax.servlet.ServletContext;
import java.lang.ref.WeakReference;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 * @author [email protected]
 */
public class InvocationContextMgr {

    private static final InvocationContext invCtx = new InvocationContext() {
        private final Logger logger = Logger.getLogger(getClass().getPackage().getName());

        private ThreadLocal> currentSC =
                new InheritableThreadLocal>();

        private ThreadLocal> currentWM =
                new InheritableThreadLocal>();

        @Override
        public WebModule getWebModule() {
            WeakReference current = currentWM.get();
            WebModule result = current != null ? current.get() : null;
            logger.logp(Level.FINE, "InvocationContextMgr", "getWebModule", "result = {0}", new Object[]{result});
            return result;
        }

        @Override
        public void setWebModule(WebModule webModule) {
            logger.logp(Level.FINE, "InvocationContextMgr", "setWebModule", "webModule = {0}", new Object[]{webModule});
            currentWM.set(webModule != null ? new WeakReference(webModule) : null);
        }
        
    };

    public static InvocationContext getInvocationContext() {
        return invCtx;
    }
}