xenadmin/XenModel/Actions/DelegatedAsyncAction.cs

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using System;
using System.Collections.Generic;
using System.Text;

using XenAdmin.Core;
using XenAdmin.Network;
using XenAPI;

namespace XenAdmin.Actions
{
    // An action which just runs a delegate.
    // It is bad style to use this for more than the very simplest delegate: preferably just a single API call.
    // Anything more complicated should be turned into a proper action of its own.

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

        private readonly Action<Session> invoker;
        private readonly string endDescription;

        public DelegatedAsyncAction(IXenConnection connection, string title, string startDescription, string endDescription,
            Action<Session> invoker)
            : this(connection, title, startDescription, endDescription, invoker, false)
        {
        }

        public DelegatedAsyncAction(IXenConnection connection, string title, string startDescription, string endDescription,
            Action<Session> invoker, bool suppressHistory)
            : base(connection, title, startDescription, suppressHistory)
        {
            this.endDescription = endDescription;
            this.invoker = invoker;
        }

        public DelegatedAsyncAction(IXenConnection connection, string title, string startDescription, string endDescription,
            Action<Session> invoker, params string[] rbacMethods)
            : this(connection, title, startDescription, endDescription, invoker, false, rbacMethods)
        {
        }

        public DelegatedAsyncAction(IXenConnection connection, string title, string startDescription, string endDescription,
            Action<Session> invoker, bool suppressHistory, params string[] rbacMethods)
            : this(connection, title, startDescription, endDescription, invoker, suppressHistory)
        {
            ApiMethodsToRoleCheck = new RbacMethodList(rbacMethods);
        }

        protected override void Run()
        {
            invoker(Session);
            Description = endDescription;
        }
    }
}