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/*
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 *
 * Copyright (c) 1997-2012 Oracle and/or its affiliates. All rights reserved.
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 * The contents of this file are subject to the terms of either the GNU
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 * 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:
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// Portions Copyright [2018-2021] [Payara Foundation and/or its affiliates]
package com.sun.enterprise.security.jacc.context;

import static com.sun.enterprise.security.jacc.context.PolicyContextHandlerImpl.EJB_ARGUMENTS;
import static com.sun.enterprise.security.jacc.context.PolicyContextHandlerImpl.ENTERPRISE_BEAN;
import static com.sun.enterprise.security.jacc.context.PolicyContextHandlerImpl.HTTP_SERVLET_REQUEST;
import static com.sun.enterprise.security.jacc.context.PolicyContextHandlerImpl.REUSE;
import static com.sun.enterprise.security.jacc.context.PolicyContextHandlerImpl.SOAP_MESSAGE;
import static com.sun.enterprise.security.jacc.context.PolicyContextHandlerImpl.SUBJECT;

import jakarta.servlet.http.HttpServletRequest;

import com.sun.enterprise.security.SecurityContext;
import com.sun.enterprise.security.jacc.cache.PermissionCacheFactory;

import org.glassfish.api.invocation.ComponentInvocation;
import org.glassfish.internal.api.Globals;

/**
 * This class implements thread scoped data used for the JACC PolicyContext.
 * 
 * 
 * Here the handlers for e.g. HTTP_SERVLET_REQUEST and SUBJECT are essentially implemented.
 * 
 * @author Harry Singh
 * @author Jyri Virkki
 * @author Shing Wai Chan
 *
 */
public class PolicyContextHandlerData {

    private HttpServletRequest httpServletRequest;
    private ComponentInvocation invocation;
    private PolicyContextDelegate ejbDelegate;

    private PolicyContextHandlerData() {
        ejbDelegate = Globals.getDefaultHabitat().getService(PolicyContextDelegate.class, "EJB");
    }

    public static PolicyContextHandlerData getInstance() {
        return new PolicyContextHandlerData();
    }

    public void setHttpServletRequest(HttpServletRequest httpReq) {
        this.httpServletRequest = httpReq;
    }

    public void setInvocation(ComponentInvocation inv) {
        this.invocation = inv;
    }

    public Object get(String key) {
        if (HTTP_SERVLET_REQUEST.equalsIgnoreCase(key)) {
            return httpServletRequest;
        }

        if (SUBJECT.equalsIgnoreCase(key)) {
            return SecurityContext.getCurrent().getSubject();
        }

        if (REUSE.equalsIgnoreCase(key)) {
            PermissionCacheFactory.resetCaches();
            return Integer.valueOf(0);
        }

        if (invocation == null) {
            return null;
        }

        if (SOAP_MESSAGE.equalsIgnoreCase(key)) {
            return ejbDelegate != null ? ejbDelegate.getSOAPMessage(invocation) : null;
        }

        if (ENTERPRISE_BEAN.equalsIgnoreCase(key)) {
            return ejbDelegate != null ? ejbDelegate.getEnterpriseBean(invocation) : null;
        }

        if (EJB_ARGUMENTS.equalsIgnoreCase(key)) {
            return ejbDelegate != null ? ejbDelegate.getEJbArguments(invocation) : null;
        }

        return null;
    }

    void reset() {
        httpServletRequest = null;
        invocation = null;
        ejbDelegate = null;
    }
}