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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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package com.sun.security.auth;

import java.security.Principal;


 This class implements the Principal interface
and represents a Unix user.

 Principals such as this UnixPrincipal
may be associated with a particular Subject
to augment that Subject with an additional
identity.  Refer to the Subject class for more information
on how to achieve this.  Authorization decisions can then be based upon
the Principals associated with a Subject.

See Also:
/**
 * <p> This class implements the <code>Principal</code> interface
 * and represents a Unix user.
 *
 * <p> Principals such as this <code>UnixPrincipal</code>
 * may be associated with a particular <code>Subject</code>
 * to augment that <code>Subject</code> with an additional
 * identity.  Refer to the <code>Subject</code> class for more information
 * on how to achieve this.  Authorization decisions can then be based upon
 * the Principals associated with a <code>Subject</code>.
 *
 * @see java.security.Principal
 * @see javax.security.auth.Subject
 */
public class UnixPrincipal implements Principal, java.io.Serializable {

    private static final long serialVersionUID = -2951667807323493631L;

    
@serial
/**
     * @serial
     */
    private String name;

    
Create a UnixPrincipal with a Unix username.



Params:
  • name – the Unix username for this user.
Throws:
/**
     * Create a UnixPrincipal with a Unix username.
     *
     * <p>
     *
     * @param name the Unix username for this user.
     *
     * @exception NullPointerException if the <code>name</code>
     *                  is <code>null</code>.
     */
    public UnixPrincipal(String name) {
        if (name == null) {
            java.text.MessageFormat form = new java.text.MessageFormat
                (sun.security.util.ResourcesMgr.getString
                        ("invalid.null.input.value",
                        "sun.security.util.AuthResources"));
            Object[] source = {"name"};
            throw new NullPointerException(form.format(source));
        }

        this.name = name;
    }

    
Return the Unix username for this UnixPrincipal.



Returns:the Unix username for this UnixPrincipal
/**
     * Return the Unix username for this <code>UnixPrincipal</code>.
     *
     * <p>
     *
     * @return the Unix username for this <code>UnixPrincipal</code>
     */
    public String getName() {
        return name;
    }

    
Return a string representation of this UnixPrincipal.



Returns:a string representation of this UnixPrincipal.
/**
     * Return a string representation of this <code>UnixPrincipal</code>.
     *
     * <p>
     *
     * @return a string representation of this <code>UnixPrincipal</code>.
     */
    public String toString() {
        java.text.MessageFormat form = new java.text.MessageFormat
                (sun.security.util.ResourcesMgr.getString
                        ("UnixPrincipal.name",
                        "sun.security.util.AuthResources"));
        Object[] source = {name};
        return form.format(source);
    }

    
Compares the specified Object with this UnixPrincipal
for equality.  Returns true if the given object is also a
UnixPrincipal and the two UnixPrincipals
have the same username.



Params:
  • o – Object to be compared for equality with this
         UnixPrincipal.
Returns:true if the specified Object is equal equal to this
         UnixPrincipal.
/**
     * Compares the specified Object with this <code>UnixPrincipal</code>
     * for equality.  Returns true if the given object is also a
     * <code>UnixPrincipal</code> and the two UnixPrincipals
     * have the same username.
     *
     * <p>
     *
     * @param o Object to be compared for equality with this
     *          <code>UnixPrincipal</code>.
     *
     * @return true if the specified Object is equal equal to this
     *          <code>UnixPrincipal</code>.
     */
    public boolean equals(Object o) {
        if (o == null)
            return false;

        if (this == o)
            return true;

        if (!(o instanceof UnixPrincipal))
            return false;
        UnixPrincipal that = (UnixPrincipal)o;

        if (this.getName().equals(that.getName()))
            return true;
        return false;
    }

    
Return a hash code for this UnixPrincipal.



Returns:a hash code for this UnixPrincipal.
/**
     * Return a hash code for this <code>UnixPrincipal</code>.
     *
     * <p>
     *
     * @return a hash code for this <code>UnixPrincipal</code>.
     */
    public int hashCode() {
        return name.hashCode();
    }
}