xenadmin/XenAdmin/Diagnostics/Checks/HostLivenessCheck.cs

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using XenAPI;
using XenAdmin.Diagnostics.Problems;
using XenAdmin.Diagnostics.Problems.HostProblem;

namespace XenAdmin.Diagnostics.Checks
{
    class HostLivenessCheck : HostCheck
    {
        private readonly bool checkEnabled;

        public HostLivenessCheck(Host host, bool checkEnabled = false)
            :base(host)
        {
            this.checkEnabled = checkEnabled;
        }

        protected override Problem RunCheck()
        {
            if (!Host.IsLive())
                return new HostNotLive(this, Host);

            if (checkEnabled && (Host.MaintenanceMode() || !Host.enabled))
                return new HostMaintenanceMode(this, Host);

            return null;
        }

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

    abstract class HostPostLivenessCheck : HostCheck
    {
        protected HostPostLivenessCheck(Host host)
            : base(host)
        {
        }

        protected sealed override Problem RunCheck()
        {
            if (!Host.IsLive())
                return new HostNotLiveWarning(this, Host);

            return RunHostCheck();
        }

        protected abstract Problem RunHostCheck();
    }
}