/* Copyright (c) Citrix Systems, Inc. * All rights reserved. * * Redistribution and use in source and binary forms, * with or without modification, are permitted provided * that the following conditions are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the * following disclaimer in the documentation and/or other * materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ using System.Collections.Generic; using System.Linq; using XenAdmin.Actions; using XenAdmin.Core; using XenAPI; namespace XenAdmin.Commands { internal class TrimSRCommand : Command { /// /// 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. /// public TrimSRCommand() { } public TrimSRCommand(IMainWindow mainWindow, IEnumerable selection) : base(mainWindow, selection) { } public TrimSRCommand(IMainWindow mainWindow, SR sr) : base(mainWindow, sr) { } protected override void ExecuteCore(SelectedItemCollection selection) { var actions = new List(); foreach (SR sr in selection.AsXenObjects(CanExecute)) { actions.Add(new SrTrimAction(sr.Connection, sr)); } RunMultipleActions(actions, null, Messages.ACTION_SR_TRIM_DESCRIPTION, Messages.ACTION_SR_TRIM_DONE, true); } protected override bool CanExecuteCore(SelectedItemCollection selection) { return selection.AllItemsAre() && selection.AtLeastOneXenObjectCan(CanExecute); } private static bool CanExecute(SR sr) { return sr != null && sr.SupportsTrim() && sr.GetFirstAttachedStorageHost() != null; } public override string MenuText { get { return Messages.MAINWINDOW_TRIM_SR; } } protected override string GetCantExecuteReasonCore(IXenObject item) { SR sr = item as SR; if (sr != null && !sr.SupportsTrim()) { return Messages.TOOLTIP_SR_TRIM_UNSUPPORTED; } return base.GetCantExecuteReasonCore(item); } /// /// Gets the tool tip text when the command is not able to run. /// If multiple items and Trim is not supported on all, then return this reason. /// Otherwise, the default behaviour: CantExectuteReason for single items, null for multiple. /// protected override string DisabledToolTipText { get { var selection = GetSelection(); var allUnsuported = selection.Count > 1 && selection.Select(item => item.XenObject as SR).All(sr => sr != null && !sr.SupportsTrim()); return allUnsuported ? Messages.TOOLTIP_SR_TRIM_UNSUPPORTED_MULTIPLE : base.DisabledToolTipText; } } protected override bool ConfirmationRequired { get { return true; } } protected override string ConfirmationDialogTitle { get { return Messages.CONFIRM_TRIM_SR_TITLE; } } protected override string ConfirmationDialogText { get { return Messages.CONFIRM_TRIM_SR; } } } }