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 * with or without modification, are permitted provided 
 * that the following conditions are met: 
 * 
 * *   Redistributions of source code must retain the above 
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 *     following disclaimer. 
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 *     copyright notice, this list of conditions and the 
 *     following disclaimer in the documentation and/or other 
 *     materials provided with the distribution. 
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 
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using System;
using System.Collections.Generic;
using XenAdmin.Alerts;

namespace CFUValidator.Validators
{
    abstract class AlertFeatureValidator
    {
        protected List<XenServerPatchAlert> alerts;

        protected AlertFeatureValidator(List<XenServerPatchAlert> alerts)
        {
            this.alerts = alerts;
            Results = new List<string>();
        }

        public abstract void Validate();
        public abstract string Description { get; }
        public List<string> Results { get; protected set; }
        public bool ErrorsFound { get { return Results.Count > 0; } }

        public delegate void StatusChangedHandler(object sender, EventArgs e);

        public event StatusChangedHandler StatusChanged;

        protected virtual void OnStatusChanged()
        {
            if (StatusChanged != null)
                StatusChanged(Status, EventArgs.Empty);
        }

        private string status;
        protected string Status
        {
            get { return status; }
            set
            {
                status = value;
                OnStatusChanged();
            }
        }
    }
}