/* Copyright (c) Citrix Systems, Inc. 
 * All rights reserved. 
 * 
 * Redistribution and use in source and binary forms, 
 * with or without modification, are permitted provided 
 * that the following conditions are met: 
 * 
 * *   Redistributions of source code must retain the above 
 *     copyright notice, this list of conditions and the 
 *     following disclaimer. 
 * *   Redistributions in binary form must reproduce the above 
 *     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 
 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 
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using XenAdmin.Core;
using XenAdmin.Diagnostics.Problems;
using XenAdmin.Diagnostics.Problems.UtilityProblem;

namespace XenAdmin.Diagnostics.Checks
{
    class CfuAvailabilityCheck : Check
    {

        protected override Problem RunCheck()
        {
            var action = Updates.CreateDownloadUpdatesXmlAction(Updates.CheckForUpdatesUrl);

            try
            {
                action.RunExternal(action.Session);
            }
            catch
            {
                log.WarnFormat("Could not download check for update file.");
            }

            if (!action.Succeeded)
                return new CfuNotAvailableProblem(this);
            else
                return null;
        }

        public override string Description
        {
            get
            {
                return Messages.CFU_STATUS_CHECK_DESCRIPTION;
            }
        }

        private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
    }
}