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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 1997-2010 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.
 *
 * GPL Classpath Exception:
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package com.sun.enterprise.resource;

import com.sun.enterprise.deployment.ResourcePrincipal;

import jakarta.resource.spi.ConnectionRequestInfo;

/**
 * This class represents the client-specific information associated
 * with a resource. Used for pool partitioning
 *
 * @author Tony Ng
 */
public class ClientSecurityInfo {

    // union: either store Principal or ConnectionRequestInfo
    private ResourcePrincipal prin;
    private ConnectionRequestInfo info;

    static private final int NULL_HASH_CODE = Integer.valueOf(1).hashCode();

    public ClientSecurityInfo(ResourcePrincipal prin) {
        if (prin == null) {
            throw new NullPointerException("Principal is null");
        }
        this.prin = prin;
        this.info = null;
    }

    public ClientSecurityInfo(ConnectionRequestInfo info) {
        // info can be null
        this.prin = null;
        this.info = info;
    }


    public ResourcePrincipal getPrincipal() {
        return prin;
    }

    public ConnectionRequestInfo getConnectionRequestInfo() {
        return info;
    }

    public boolean equals(Object obj) {
        if (this == obj) return true;
        if (obj == null) return false;
        if (obj instanceof ClientSecurityInfo) {
            ClientSecurityInfo other = (ClientSecurityInfo) obj;
            return ((isEqual(prin, other.prin)) &&
                    (isEqual(info, other.info)));
        }
        return false;
    }

    public int hashCode() {
        int result = NULL_HASH_CODE;
        if (prin != null) {
            result = prin.hashCode();
        }
        if (info != null) {
            result += info.hashCode();
        }
        return result;
    }

    private boolean isEqual(Object a, Object b) {
        if (a == null) {
            return (b == null);
        } else {
            return (a.equals(b));
        }
    }

    public String toString() {
        return "ClientSecurityInfo: prin=" + prin + " info=" + info;
    }
}