<?php

// imports
require_once 'GenericAdmin/DataTypes/EnumType.php';

class InstAddrSel extends EnumType {

	/** the possible values for type instance address selector */
	const IP4		  = 1; // IPv4
	const IP6		  = 2; // IPv6
	const NAME       = 3;
	const IP4_CASCADE = 4; // IPv4 - cascaded
	const IP6_CASCADE = 5; // IPv6 - cascaded
	const FREE_FORM	  = 6; // free form

	// (string representations of) defined values
	public static $defd_vals = array (
		self::IP4		  => 'IPv4',
		self::IP6		  => 'IPv6',
		self::NAME       => 'Hostname',
		self::IP4_CASCADE => 'IPv4_cas',
		self::IP6_CASCADE => 'IPv6_cas',
		self::FREE_FORM	  => 'free_form'
	);

	public function __construct($value) {
		$this->initInstance('InstAddrSel', self::$defd_vals, $value);
	}
	
	public static function fromHostAddrSel(HostAddrSel $s) {
		switch ($s->getValue()) {
			case HostAddrSel::FREE_FORM: return new InstAddrSel(self::FREE_FORM);
				break;
			case HostAddrSel::IP4: return new InstAddrSel(self::IP4);
				break;
			case HostAddrSel::IP6: return new InstAddrSel(self::IP6);
				break;
			case HostAddrSel::NAME: return new InstAddrSel(self::NAME);
				break;
			default: throw new Exception("cannot convert HostAddrSel $s to InstAddrSel");
				
		}
	}
}