xenadmin/XenAdmin/Wizards/PatchingWizard/PlanActions/ApplyXenServerPatchPlanAction.cs

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


namespace XenAdmin.Wizards.PatchingWizard.PlanActions
{
    public class ApplyXenServerPatchPlanAction : PlanActionWithSession
    {
        private readonly Host host;
        private readonly XenServerPatch xenServerPatch;
        private readonly List<PoolPatchMapping> mappings;

        public ApplyXenServerPatchPlanAction(Host host, XenServerPatch xenServerPatch, List<PoolPatchMapping> mappings)
            : base(host.Connection, string.Format(Messages.UPDATES_WIZARD_APPLYING_UPDATE, xenServerPatch.Name, host.Name))
        {
            this.host = host;
            this.xenServerPatch = xenServerPatch;
            this.mappings = mappings;
        }

        protected override void RunWithSession(ref Session session)
        {

            var master = Helpers.GetMaster(host.Connection);
            var mapping = mappings.Find(m => m.XenServerPatch.Equals(xenServerPatch)
                                             && m.MasterHost != null && master != null && m.MasterHost.uuid == master.uuid);

            if (mapping != null && mapping.Pool_patch != null)
            {
                var patchRef = mapping.Pool_patch;

                XenRef<Task> task = Pool_patch.async_apply(session, patchRef.opaque_ref, host.opaque_ref);

                PollTaskForResultAndDestroy(Connection, ref session, task);
            }
            else
            {
                if (xenServerPatch != null && master != null)
                    log.ErrorFormat("Mapping not found for patch {0} on master {1}", xenServerPatch.Uuid, master.uuid);

                throw new Exception("Pool_patch not found.");
            }
        }
    }
}