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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
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 *
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 * 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
 * http://glassfish.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
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 *
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package org.glassfish.jersey.internal.inject;

import java.security.Principal;

import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.core.SecurityContext;

import org.glassfish.jersey.internal.LocalizationMessages;

/**
 * Proxiable wrapper for request scoped {@link SecurityContext} instance.
 *
 * @author Jakub Podlesak (jakub.podlesak at oracle.com)
 */
public class SecurityContextInjectee implements SecurityContext {

    private ContainerRequestContext requestContext;

    /**
     * Set request instance, where to take the actual security context from.
     * Should be invoked on each incoming request,
     * when a new injectee instance is created by HK2.
     *
     * @param containerRequest
     */
    public void setRequest(final ContainerRequestContext containerRequest) {
        if (requestContext != null) {
            throw new IllegalStateException(LocalizationMessages.SECURITY_CONTEXT_WAS_ALREADY_SET());
        }
        requestContext = containerRequest;
    }

    @Override
    public Principal getUserPrincipal() {
        checkState();
        return requestContext.getSecurityContext().getUserPrincipal();
    }

    @Override
    public boolean isUserInRole(String role) {
        checkState();
        return requestContext.getSecurityContext().isUserInRole(role);
    }

    @Override
    public boolean isSecure() {
        checkState();
        return requestContext.getSecurityContext().isSecure();
    }

    @Override
    public String getAuthenticationScheme() {
        checkState();
        return requestContext.getSecurityContext().getAuthenticationScheme();
    }

    @Override
    public int hashCode() {
        checkState();
        return 7 * requestContext.getSecurityContext().hashCode();
    }

    @Override
    public boolean equals(Object that) {
        checkState();

        if (!(that instanceof SecurityContext)) {
            return false;
        }

        return that.equals(requestContext.getSecurityContext());
    }

    private void checkState() {
        if (requestContext == null) {
            throw new IllegalStateException(LocalizationMessages.SECURITY_CONTEXT_WAS_NOT_SET());
        }
    }
}