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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 1997-2012 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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 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
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 * enclosed by brackets [] replaced by your own identifying information:
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 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
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 */

package com.sun.enterprise.deployment.runtime.common;

import org.glassfish.deployment.common.Descriptor;

import java.lang.reflect.Constructor;
import java.security.Principal;

/**
 * This is an in memory representation of the principal-name with its name of 
 * the implementation class.
 * @author deployment dev team
 */
public class PrincipalNameDescriptor extends Descriptor {

    private static final String defaultClassName =
                "org.glassfish.security.common.PrincipalImpl";
    private String principalName = null;
    private String className = null;
    private transient ClassLoader cLoader = null;

    public PrincipalNameDescriptor() {}

    public String getName() {
        return principalName;
    }

    public String getClassName() {
        if (className == null) {
            return defaultClassName;
        }
        return className;
    }

    public void setName(String name) {
        principalName = name;
    }

    public void setClassName(String name) {
        className = name;
    }

    public void setClassLoader(ClassLoader c) {
        cLoader = c;
    }

    public Principal getPrincipal() {
        try {
            if (cLoader == null) {
                cLoader = Thread.currentThread().getContextClassLoader();
            }
            Class clazz = Class.forName(getClassName(), true, cLoader);
            Constructor constructor = 
                            clazz.getConstructor(new Class[]{String.class});
            Object o = constructor.newInstance(new Object[]{principalName});
            return (Principal) o;
        } catch(Exception ex) {
            RuntimeException e = new RuntimeException();
            e.initCause(ex);
            throw e;
        }
    }

    public String toString() {
        return "principal-name " + principalName + "; className " + getClassName();
    }
}