xenadmin/XenModel/Actions/SupplementalPack/InstallSupplementalPackAction.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using XenAdmin.Core;
using XenAPI;


namespace XenAdmin.Actions
{
    public class InstallSupplementalPackAction: AsyncAction
    {
        private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);

        private readonly Dictionary<Host, VDI> suppPackVdis;

        public InstallSupplementalPackAction(Dictionary<Host, VDI> suppPackVdis, bool suppressHistory)
            : base(null, "", suppressHistory)
        {
            this.suppPackVdis = suppPackVdis;

            Title = suppPackVdis.Count == 1
                ? string.Format(Messages.UPDATES_WIZARD_APPLYING_UPDATE, suppPackVdis.First().Value, suppPackVdis.First().Key)
                : string.Format(Messages.UPDATES_WIZARD_APPLYING_UPDATE_MULTIPLE_HOSTS, suppPackVdis.Count);

            ApiMethodsToRoleCheck.Add("host.call_plugin");
        }

        protected override void Run()
        {
            SafeToExit = false;
            foreach (var suppPackVdi in suppPackVdis)
            {
                InstallSuppPack(suppPackVdi.Key, suppPackVdi.Value);
            }
            if (suppPackVdis.Count > 1)
                Description = Messages.ALL_UPDATES_APPLIED;
        }

        private void InstallSuppPack(Host host, VDI vdi)
        {
            // Set the correct connection object, for RecomputeCanCancel
            Connection = host.Connection; 
            Session session = host.Connection.DuplicateSession();

            try
            {
                Description = string.Format(Messages.APPLYING_PATCH, vdi.Name(), host.Name());
                Host.call_plugin(session, host.opaque_ref, "install-supp-pack", "install", new Dictionary<string, string> { { "vdi", vdi.uuid } });
                Description = string.Format(Messages.PATCH_APPLIED, vdi.Name(), host.Name());
            }
            catch (Failure failure)
            {
                log.ErrorFormat("Plugin call install-supp-pack.install({0}) on {1} failed with {2}", vdi.uuid, host.Name(), failure.Message);
                log.ErrorFormat("Supplemental pack installation error description: {0}", string.Join(";", failure.ErrorDescription));
                throw new SupplementalPackInstallFailedException(string.Format(Messages.SUPP_PACK_INSTALL_FAILED, vdi.Name(), host.Name(), BrandManager.ProductBrand), failure);
            }
            finally
            {
                Connection = null;
            }
        }
    }

    public class SupplementalPackInstallFailedException : ApplicationException
    {
        public SupplementalPackInstallFailedException(string message, Exception innerException) :
            base(message, innerException) { }
    }
}