/******************************************************************************
* The MIT License
* Copyright (c) 2003 Novell Inc.  www.novell.com
* 
* Permission is hereby granted, free of charge, to any person obtaining  a copy
* of this software and associated documentation files (the Software), to deal
* in the Software without restriction, including  without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 
* copies of the Software, and to  permit persons to whom the Software is 
* furnished to do so, subject to the following conditions:
* 
* The above copyright notice and this permission notice shall be included in 
* all copies or substantial portions of the Software.
* 
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*******************************************************************************/
//
// Novell.Directory.Ldap.LdapExtendedRequest.cs
//
// Author:
//   Sunil Kumar (Sunilk@novell.com)
//
// (C) 2003 Novell, Inc (http://www.novell.com)
//

using System;
using Asn1OctetString = Novell.Directory.Ldap.Asn1.Asn1OctetString;
using Asn1Tagged = Novell.Directory.Ldap.Asn1.Asn1Tagged;
using RfcExtendedRequest = Novell.Directory.Ldap.Rfc2251.RfcExtendedRequest;
using RfcLdapOID = Novell.Directory.Ldap.Rfc2251.RfcLdapOID;

namespace Novell.Directory.Ldap
{
	
	/// <summary> Represents an Ldap Extended Request.
	/// 
	/// </summary>
	/// <seealso cref="LdapConnection.SendRequest">
	/// </seealso> 
   /*
	*       ExtendedRequest ::= [APPLICATION 23] SEQUENCE {
	*               requestName      [0] LdapOID,
	*               requestValue     [1] OCTET STRING OPTIONAL }
	*/
	public class LdapExtendedRequest:LdapMessage
	{
		/// <summary> Retrieves an extended operation from this request</summary>
		/// <returns> extended operation represented in this request.
		/// </returns>
		virtual public LdapExtendedOperation ExtendedOperation
		{
			get
			{
				RfcExtendedRequest xreq = (RfcExtendedRequest) this.Asn1Object.get_Renamed(1);
				
				//Zeroth element is the OID, element one is the value
				Asn1Tagged tag = (Asn1Tagged) xreq.get_Renamed(0);
				RfcLdapOID oid = (RfcLdapOID) tag.taggedValue();
				System.String requestID = oid.stringValue();
				
				sbyte[] requestValue = null;
				if (xreq.size() >= 2)
				{
					tag = (Asn1Tagged) xreq.get_Renamed(1);
					Asn1OctetString value_Renamed = (Asn1OctetString) tag.taggedValue();
					requestValue = value_Renamed.byteValue();
				}
				return new LdapExtendedOperation(requestID, requestValue);
			}
			
		}
		/// <summary> Constructs an LdapExtendedRequest.
		/// 
		/// </summary>
		/// <param name="op"> The object which contains (1) an identifier of an extended
		/// operation which should be recognized by the particular Ldap
		/// server this client is connected to, and (2) an operation-
		/// specific sequence of octet strings or BER-encoded values.
		/// 
		/// </param>
		/// <param name="cont">Any controls that apply to the extended request
		/// or null if none.
		/// </param>
		public LdapExtendedRequest(LdapExtendedOperation op, LdapControl[] cont):base(LdapMessage.EXTENDED_REQUEST, new RfcExtendedRequest(new RfcLdapOID(op.getID()), (op.getValue() != null)?new Asn1OctetString(op.getValue()):null), cont)
		{
			return ;
		}
	}
}