//----------------------------------------------------------------------------
//
// Copyright (c) Intel Corporation, 2008 - 2010  All Rights Reserved.
//
//  File:       CimObjectData.cs 
//
//  Contents:   CimObjectData is a part of the CimFramework project.
//              It contains an abstract class that keeps its internal data sorted alphabetically.
//
//----------------------------------------------------------------------------
using System;
using System.Collections;
using System.Xml;
using Intel.Manageability.Exceptions;

namespace Intel.Manageability.Cim.Untyped
{
    /// <summary>
    /// An abstract class that maintains its data sorted alphabetically.
    /// This class is the base class for the untyped CIM class (CimObject).
    /// </summary>
    public  abstract class CimObjectData : CimData
    {
        /// <summary>
        /// Constructor that recieves the class name and namespace and constructs the object accordingly. 
        /// </summary>
        /// <param name="className">The name of the class</param>
        /// <param name="nameSpace">The namespace of the class</param>
        protected CimObjectData(string className, string nameSpace)
            : base(className, nameSpace)
        {
        }

        /// <summary>
        /// Copy constructor
        /// </summary>
        /// <param name="other">Object to be copied</param>
        protected CimObjectData(CimObjectData other)
            : base(other)
        {
        }

        /// <summary>
        /// Adds a new CIM Field
        /// </summary>
        /// <param name="name">Field name</param>
        /// <param name="values">Array of field values</param>
        public override void AddField(string name, string[] values)
        {
            //Arguments sanity check
            if (values == null || containNullValue(values))
                throw new ArgumentNullException("values");

            if (ContainsField(name))
                throw (new CimException(string.Format("AddField: Field \"{0}\" already exists", name)));
            

            XmlElement root = XmlMembers.DocumentElement;   
            //Insert element sorted
            foreach (string val in values)
            {
                //Create a new node
                XmlElement elem = XmlMembers.CreateElement(root.Prefix, name, _xmlNamespace);
                elem.InnerXml = val;

                //Insert the element in a sorted way
                IEnumerator ienum = XmlMembers.DocumentElement.GetEnumerator();
                XmlNode currentNode = null;
                bool found = false;
                while (ienum.MoveNext())
                {
                    currentNode = (XmlNode)ienum.Current;
                    if (String.Compare(currentNode.LocalName, name, false) > 0)
                    {
                        found = true;
                        break;
                    }
                }
                if (found)
                {
                    root.InsertBefore(elem, currentNode);
                }
                else
                {
                    root.AppendChild(elem);
                }
            }
        }
    }
}