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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2009-2010 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.
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 */

package org.glassfish.weld.services;

import com.sun.enterprise.security.SecurityContext;
import java.security.Principal;
import java.util.function.Consumer;

import org.jboss.weld.security.spi.SecurityServices;

public class SecurityServicesImpl implements SecurityServices {

    @Override
    public Principal getPrincipal() {
        return SecurityContext.getCurrent().getCallerPrincipal();
    }

    @Override
    public void cleanup() {}

    @Override
    public org.jboss.weld.security.spi.SecurityContext getSecurityContext() {
        return new SecurityContextImpl();
    }

    static class SecurityContextImpl implements org.jboss.weld.security.spi.SecurityContext {

        private final SecurityContext myContext;
        private static ThreadLocal oldContext = new ThreadLocal<>();

        private SecurityContextImpl() {
            this.myContext = SecurityContext.getCurrent();
        }

        @Override
        public void associate() {
            if (oldContext.get() == null) {
                oldContext.set(SecurityContext.getCurrent());
            } else {
                throw new IllegalStateException("Security context is already associated");
            }
            SecurityContext.setCurrent(myContext);
        }

        @Override
        public void dissociate() {
            SecurityContext.setCurrent(oldContext.get());
            oldContext.remove();
        }

        @Override
        public void close() {

        }
    }
}