xenadmin/XenAdmin/Commands/DRConfigureCommand.cs

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using System;
using System.Collections.Generic;
using System.Windows.Forms;
using XenAdmin.Actions;
using XenAdmin.Core;
using XenAdmin.Dialogs;
using XenAPI;


namespace XenAdmin.Commands
{
    /// <summary>
    /// Launches the Enable DR Dialog.
    /// </summary>
    internal class DRConfigureCommand : Command
    {
        /// <summary>
        /// Initializes a new instance of this Command. The parameter-less constructor is required in the derived
        /// class if it is to be attached to a ToolStrip menu item or button. It should not be used in any other scenario.
        /// </summary>
        public DRConfigureCommand()
        {
        }

        public DRConfigureCommand(IMainWindow mainWindow, IEnumerable<SelectedItem> selection)
            : base(mainWindow, selection)
        {
        }
        /// <summary>
		/// Initializes a new instance of the <see cref="DRConfigureCommand"/> class. 
        /// </summary>
        /// <param name="mainWindow">The main window interface. It can be found at MainWindow.CommandInterface.</param>
        public DRConfigureCommand(IMainWindow mainWindow)
            : base(mainWindow)
        {
        }

        public DRConfigureCommand(IMainWindow mainWindow, IXenObject selection)
            : base(mainWindow, selection)
        {
        }


        protected override void RunCore(SelectedItemCollection selection)
        {
            var pool = Helpers.GetPoolOfOne(selection.FirstAsXenObject.Connection);

            if (pool != null)
            {
                using (DRConfigureDialog dlog = new DRConfigureDialog(pool))
                {
                    if (dlog.ShowDialog() == DialogResult.OK && (dlog.SRtoEnable.Count > 0 || dlog.SRtoDisable.Count > 0))
                    {
                        var actions = new List<AsyncAction>();

                        foreach (SR sr in dlog.SRtoDisable.Values)
                        {
                            SR curSr = sr;
                            var action = new DelegatedAsyncAction(pool.Connection,
                                String.Format(Messages.ACTION_DR_DISABLING_ON, sr.Name()), Messages.ACTION_DR_DISABLING, Messages.ACTION_DR_DISABLED,
                                s => SR.disable_database_replication(s, curSr.opaque_ref))
                            { Pool = pool };
                            actions.Add(action);
                        }

                        foreach (SR sr in dlog.SRtoEnable.Values)
                        {
                            SR curSr = sr;
                            var action = new DelegatedAsyncAction(pool.Connection,
                                String.Format(Messages.ACTION_DR_ENABLING_ON, sr.Name()), Messages.ACTION_DR_ENABLING, Messages.ACTION_DR_ENABLED,
                                s => SR.enable_database_replication(s, curSr.opaque_ref))
                            { Pool = pool };
                            actions.Add(action);
                        }

                        RunMultipleActions(actions, Messages.ACTION_DR_CONFIGURING, string.Empty, string.Empty, true);
                    }
                }

            }
        }

        protected override bool CanRunCore(SelectedItemCollection selection)
        {
            return selection.FirstAsXenObject != null && selection.FirstAsXenObject.Connection != null && selection.FirstAsXenObject.Connection.IsConnected
                && (selection.PoolAncestor != null || selection.HostAncestor != null); //CA-61207: this check ensures there's no cross-pool selection
        }

        public override string ContextMenuText
        {
            get
            {
                return Messages.DR_CONFIGURE_AMP;
            }
        }
    }
}