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149 lines
3.5 KiB
149 lines
3.5 KiB
/*
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* Copyright (c) 1997, 2007, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*/
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package com.sun.jmx.snmp.IPAcl;
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import java.net.InetAddress;
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import java.net.UnknownHostException;
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import java.io.Serializable;
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/**
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* Principal represents a host.
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*
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*/
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class PrincipalImpl implements java.security.Principal, Serializable {
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private static final long serialVersionUID = -7910027842878976761L;
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private InetAddress[] add = null;
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/**
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* Constructs a principal with the local host.
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*/
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public PrincipalImpl () throws UnknownHostException {
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add = new InetAddress[1];
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add[0] = java.net.InetAddress.getLocalHost();
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}
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/**
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* Construct a principal using the specified host.
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* <P>
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* The host can be either:
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* <UL>
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* <LI> a host name
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* <LI> an IP address
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* </UL>
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*
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* @param hostName the host used to make the principal.
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*/
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public PrincipalImpl(String hostName) throws UnknownHostException {
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if ((hostName.equals("localhost")) || (hostName.equals("127.0.0.1"))) {
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add = new InetAddress[1];
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add[0] = java.net.InetAddress.getByName(hostName);
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}
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else
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add = java.net.InetAddress.getAllByName( hostName );
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}
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/**
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* Constructs a principal using an Internet Protocol (IP) address.
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*
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* @param address the Internet Protocol (IP) address.
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*/
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public PrincipalImpl(InetAddress address) {
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add = new InetAddress[1];
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add[0] = address;
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}
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/**
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* Returns the name of this principal.
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*
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* @return the name of this principal.
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*/
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public String getName() {
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return add[0].toString();
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}
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/**
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* Compares this principal to the specified object. Returns true if the
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* object passed in matches the principal
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* represented by the implementation of this interface.
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*
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* @param a the principal to compare with.
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* @return true if the principal passed in is the same as that encapsulated by this principal, false otherwise.
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*/
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public boolean equals(Object a) {
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if (a instanceof PrincipalImpl){
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for(int i = 0; i < add.length; i++) {
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if(add[i].equals (((PrincipalImpl) a).getAddress()))
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return true;
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}
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return false;
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} else {
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return false;
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}
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}
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/**
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* Returns a hashcode for this principal.
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*
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* @return a hashcode for this principal.
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*/
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public int hashCode(){
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return add[0].hashCode();
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}
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/**
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* Returns a string representation of this principal. In case of multiple address, the first one is returned.
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*
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* @return a string representation of this principal.
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*/
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public String toString() {
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return ("PrincipalImpl :"+add[0].toString());
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}
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/**
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* Returns the Internet Protocol (IP) address for this principal. In case of multiple address, the first one is returned.
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*
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* @return the Internet Protocol (IP) address for this principal.
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*/
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public InetAddress getAddress(){
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return add[0];
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}
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/**
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* Returns the Internet Protocol (IP) address for this principal. In case of multiple address, the first one is returned.
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*
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* @return the array of Internet Protocol (IP) addresses for this principal.
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*/
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public InetAddress[] getAddresses(){
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return add;
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}
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}
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