mirror of
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682 lines
26 KiB
C#
682 lines
26 KiB
C#
/* Copyright (c) Citrix Systems Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms,
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* with or without modification, are permitted provided
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* that the following conditions are met:
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*
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* * Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the
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* following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the
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* following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Text;
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using System.Windows.Forms;
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using XenAdmin.Actions;
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using XenAdmin.Actions.Wlb;
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using XenAdmin.Commands;
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using XenAdmin.Controls;
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using XenAdmin.Core;
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using XenAdmin.Wlb;
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using XenAdmin.Dialogs;
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using XenAdmin.Dialogs.Wlb;
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using XenAdmin.Network;
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using XenAdmin.Help;
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using XenAdmin.TabPages;
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using XenAPI;
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namespace XenAdmin.TabPages
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{
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public partial class WlbPage : BaseTabPage
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{
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private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
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private Pool _pool;
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private WlbPoolConfiguration _wlbPoolConfiguration;
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/// <summary>
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/// The pool that the panel is displaying WLB info for. Must be set on the event thread.
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/// </summary>
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public Pool Pool
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{
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set
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{
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Program.AssertOnEventThread();
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if (null != value)
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{
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this.wlbOptimizePool.XenObject = value;
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if (_pool != value)
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{
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if (_pool != null)
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_pool.PropertyChanged -= Pool_PropertyChanged;
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_pool = value;
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_pool.PropertyChanged += Pool_PropertyChanged;
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}
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SetRetrievingConfiguration();
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RetrieveConfiguration();
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RefreshControls();
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}
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}
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}
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public WlbPage()
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{
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InitializeComponent();
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base.Text = Messages.WORKLOAD_BALANCING;
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pdSectionConfiguration.fixFirstColumnWidth(200);
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pictureBoxWarningTriangle.Image = SystemIcons.Warning.ToBitmap();
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RefreshControls();
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}
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#region ControlEvents
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private void buttonConfigure_Click(object sender, EventArgs e)
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{
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if (_pool == null)
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{
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return;
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}
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// if the _wlbPoolConfiguration is null, it means we cannot communicate with the WLB
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// server for some reason do nothing
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if (null != _wlbPoolConfiguration)
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{
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DisableButtons();
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EditWLB(_pool);
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}
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}
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private void buttonEnableDisableWlb_Click(object sender, EventArgs e)
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{
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if (WlbServerState.GetState(_pool) != WlbServerState.ServerState.Enabled)
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{
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DisableButtons();
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EnableWLB();
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}
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else
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{
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DisableButtons();
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DisableWLB(false);
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}
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}
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#endregion
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#region Wlb Actions
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private void EnableWLB()
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{
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// Enable WLB.
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EnableWLBAction action = new EnableWLBAction(_pool);
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// We will need to re-enable buttons when the action completes
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action.Completed += Program.MainWindow.action_Completed;
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action.Completed += this.action_Completed;
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action.RunAsync();
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Program.MainWindow.UpdateToolbars();
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}
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private void DisableWLB(bool deconfigure)
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{
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DisableWLBAction action = new DisableWLBAction(_pool, deconfigure);
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action.Completed += Program.MainWindow.action_Completed;
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action.Completed += this.action_Completed;
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action.RunAsync();
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Program.MainWindow.UpdateToolbars();
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}
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private void RetrieveConfiguration()
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{
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// only get the config if there are no other pending wlb actions
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if (null == HelpersGUI.FindActiveWLBAction(_pool.Connection))
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{
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RetrieveWlbConfigurationAction action = new RetrieveWlbConfigurationAction(_pool);
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action.Completed += this.action_Completed;
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action.RunAsync();
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}
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}
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private void SaveWLBConfig(WlbPoolConfiguration PoolConfiguration)
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{
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Dictionary<string, string> completeConfiguration = PoolConfiguration.ToDictionary();
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SendWlbConfigurationKind kind = SendWlbConfigurationKind.SetPoolConfiguration;
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// check for host configurations in the pool configuration
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if (PoolConfiguration.HostConfigurations.Count > 0)
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{
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// add the flag denoting that there are host configs to be saved
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kind |= SendWlbConfigurationKind.SetHostConfiguration;
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// get the key for each host config (host.uuid)
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foreach (string key in PoolConfiguration.HostConfigurations.ToDictionary().Keys)
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{
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//Drop any exising copy from the pool configuration
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if (completeConfiguration.ContainsKey(key))
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{
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completeConfiguration.Remove(key);
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}
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// and add the task to the collection
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completeConfiguration.Add(key, PoolConfiguration.HostConfigurations.ToDictionary()[key]);
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}
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}
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// check for scheduled tasks in the pool configuration
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if (PoolConfiguration.ScheduledTasks.TaskList.Count > 0)
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{
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// add the flag denoting that there are scheduled tasks to be saved
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kind |= SendWlbConfigurationKind.SetScheduledTask;
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// get the key for each scheduled task
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foreach (string key in PoolConfiguration.ScheduledTasks.ToDictionary().Keys)
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{
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//Drop any exising copy from the pool configuration
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if (completeConfiguration.ContainsKey(key))
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{
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completeConfiguration.Remove(key);
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}
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// and add the task to the collection
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completeConfiguration.Add(key, PoolConfiguration.ScheduledTasks.ToDictionary()[key]);
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}
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}
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SendWlbConfigurationAction action = new SendWlbConfigurationAction(_pool, PoolConfiguration.ToDictionary(), kind);
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ActionProgressDialog dialog = new ActionProgressDialog(action, ProgressBarStyle.Blocks);
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dialog.ShowCancel = true;
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dialog.ShowDialog(this);
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Program.MainWindow.UpdateToolbars();
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}
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#endregion
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#region Event Handlers
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protected void action_Completed(ActionBase sender)
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{
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// This seems to be called off the event thread
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AsyncAction action = (AsyncAction)sender;
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if (action.IsCompleted)
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{
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action.Completed -= action_Completed;
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if (action is EnableWLBAction || action is RetrieveWlbConfigurationAction || action is DisableWLBAction)
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{
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if (action is EnableWLBAction)
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{
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EnableWLBAction thisAction = (EnableWLBAction)action;
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_wlbPoolConfiguration = new WlbPoolConfiguration(thisAction.WlbConfiguration);
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}
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else if (action is RetrieveWlbConfigurationAction)
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{
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RetrieveWlbConfigurationAction thisAction = (RetrieveWlbConfigurationAction)action;
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if (thisAction.Succeeded)
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{
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_wlbPoolConfiguration = new WlbPoolConfiguration(thisAction.WlbConfiguration);
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}
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else
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{
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//_statusError = thisAction.Exception.Message;
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_wlbPoolConfiguration = null;
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}
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}
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else if (action is DisableWLBAction)
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{
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}
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Program.Invoke(Program.MainWindow, delegate()
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{
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if (_pool != null && _pool.Connection == action.Connection)
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{
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RefreshControls();
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}
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});
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}
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}
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}
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private void Pool_PropertyChanged(object sender, PropertyChangedEventArgs e)
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{
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// Refresh controls if a wlb pool preoprty changes, or if other_config changes
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if (e.PropertyName.StartsWith("wlb") || e.PropertyName == "other_config")
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{
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RefreshControls();
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}
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}
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#endregion
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#region Private Methods
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/// <summary>
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/// Rebuilds the panel contents. Must be called on the event thread.
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/// </summary>
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private void RefreshControls()
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{
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Program.AssertOnEventThread();
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if ((!this.Visible) ||
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(null == _pool))
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{
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return;
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}
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try
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{
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if (null != _wlbPoolConfiguration)
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{
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this.wlbOptimizePool.SuspendLayout();
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// Update optimizePool control properties (versionSupport, apply button)
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this.wlbOptimizePool.SetOptControlProperties(_wlbPoolConfiguration.IsMROrLater, _wlbPoolConfiguration.AutoBalanceEnabled, _wlbPoolConfiguration.PowerManagementEnabled);
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this.wlbOptimizePool.ResumeLayout();
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}
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SetButtonState();
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SetConfigurationItems();
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}
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catch
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{
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//do nothing
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}
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}
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private void SetRetrievingConfiguration()
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{
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pdSectionConfiguration.PauseLayout();
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pdSectionConfiguration.ClearData();
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pdSectionConfiguration.AddEntry(Messages.WLB_RETRIEVING_CONFIGURATION, Messages.WLB_PLEASE_WAIT);
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pdSectionConfiguration.StartLayout();
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pdSectionConfiguration.Expand();
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}
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private void SetConfigurationItems()
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{
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// Populate the Configuration Items
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pdSectionConfiguration.PauseLayout();
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pdSectionConfiguration.ClearData();
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if (WlbServerState.GetState(_pool) == WlbServerState.ServerState.ConnectionError)
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{
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pdSectionConfiguration.AddEntry(Messages.WLB_STATUS, getPoolWLBStatus(_pool));
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pdSectionConfiguration.AddEntry(Messages.WLB_SERVER_URL, getPoolWLBServer(_pool));
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}
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else
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{
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pdSectionConfiguration.AddEntry(Messages.WLB_SERVER_URL, getPoolWLBServer(_pool));
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pdSectionConfiguration.AddEntry(Messages.WLB_OPT_MODE, getPoolOptMode(_pool));
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if (null != _wlbPoolConfiguration && _wlbPoolConfiguration.IsMROrLater)
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{
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if (_wlbPoolConfiguration.AutomateOptimizationMode)
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{
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pdSectionConfiguration.AddEntry(Messages.WLB_NEXT_OPT_MODE_SCHEDULE_TEXT, getNextOptModeTask(_pool));
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}
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pdSectionConfiguration.AddEntry(Messages.WLB_AUTO_OPT, getAutoOptimization(_pool));
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pdSectionConfiguration.AddEntry(Messages.WLB_PWR_MGT, getPoolWlbPowerManagement(_pool));
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}
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}
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pdSectionConfiguration.Expand();
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pdSectionConfiguration.StartLayout();
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}
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private RbacMethodList WLB_PERMISSION_CHECKS = new RbacMethodList(
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"pool.initialize_wlb",
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"pool.set_wlb_enabled",
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"pool.send_wlb_configuration"
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);
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private bool PassedRbacChecks()
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{
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if (!Helpers.MidnightRideOrGreater(_pool.Connection))
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return true;
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return Role.CanPerform(WLB_PERMISSION_CHECKS, _pool.Connection);
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}
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private void SetButtonState()
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{
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string statusMessage = string.Empty;
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string rbacUser = string.Empty;
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bool passedRbacChecks = PassedRbacChecks();
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if (!passedRbacChecks)
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{
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List<Role> roleList = _pool.Connection.Session.Roles;
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roleList.Sort();
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rbacUser = roleList[0].FriendlyName;
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}
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AsyncAction thisAction = HelpersGUI.FindActiveWLBAction(_pool.Connection);
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if (thisAction is RetrieveWlbConfigurationAction)
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{
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DisableButtons();
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return;
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}
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//if wlb is not configured,
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// disable the config button and change the text of the Enable button to Initialize WLB...
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//else if (!wlbConfigured)
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else if (WlbServerState.GetState(_pool) == WlbServerState.ServerState.NotConfigured)
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{
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buttonConnect.Visible = true;
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buttonConnect.Text = Messages.WLB_CONNECT;
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buttonConfigure.Visible = false;
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buttonEnableDisableWlb.Visible = false;
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buttonReports.Visible = false;
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pictureBoxWarningTriangle.Visible = false;
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if (passedRbacChecks)
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{
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statusMessage = string.Format(Messages.WLB_INITIALIZE_WLB_BLURB, _pool.Name);
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}
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else
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{
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statusMessage = string.Format(Messages.WLB_INITIALIZE_WLB_BLURB_NO_PRIV, _pool.Name, rbacUser);
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}
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labelStatus.Text = statusMessage;
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pictureBoxWarningTriangle.Visible = (WlbServerState.GetState(_pool) == WlbServerState.ServerState.ConnectionError);
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panelConfiguration.Visible = false;
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wlbOptimizePool.Visible = false;
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}
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//if there is an error contacting the WLB server,
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// disable the config button and change the text of the Enable button to Initialize WLB...
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//else if (!wlbConfigured)
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else if (WlbServerState.GetState(_pool) == WlbServerState.ServerState.ConnectionError)
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{
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buttonConnect.Visible = true;
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buttonConnect.Text = Messages.WLB_RECONNECT;
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buttonConfigure.Visible = false;
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buttonEnableDisableWlb.Visible = false;
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buttonReports.Visible = false;
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pictureBoxWarningTriangle.Visible = true;
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if (passedRbacChecks)
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{
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statusMessage = Messages.WLB_CONNECTION_ERROR_BLURB;
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}
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else
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{
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statusMessage = string.Format(Messages.WLB_CONNECTION_ERROR_BLURB_NO_PRIV, rbacUser);
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}
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labelStatus.Text = statusMessage;
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labelStatus.Visible = true;
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pictureBoxWarningTriangle.Visible = (WlbServerState.GetState(_pool) == WlbServerState.ServerState.ConnectionError);
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buttonReports.Enabled = false;
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panelConfiguration.Visible = false;
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wlbOptimizePool.Visible = false;
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}
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//if wlb is configured but not enabled,
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//enable the configure button and enble the enable button
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//else if (wlbConfigured && !wlbEnabled)
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else if (WlbServerState.GetState(_pool) == WlbServerState.ServerState.Disabled)
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{
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base.Text = Messages.WORKLOAD_BALANCING;
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buttonConnect.Visible = false;
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buttonConfigure.Visible = true;
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buttonEnableDisableWlb.Visible = true;
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buttonReports.Visible = true;
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pictureBoxWarningTriangle.Visible = true;
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buttonConfigure.Enabled = true;
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buttonEnableDisableWlb.Enabled = true;
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buttonEnableDisableWlb.Text = Messages.ENABLE_WLB_ELLIPSIS;
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buttonEnableDisableWlb.ImageIndex = 1; //Play arrow
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if (!passedRbacChecks)
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{
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statusMessage = string.Format(Messages.WLB_ENABLE_WLB_BLURB_NO_PRIV, _pool.Name, rbacUser);
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}
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else
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{
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statusMessage = string.Format(Messages.WLB_ENABLE_WLB_BLURB, _pool.Name);
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}
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labelStatus.Text = statusMessage;
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buttonReports.Enabled = true;
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panelConfiguration.Visible = true;
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wlbOptimizePool.Visible = true;
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}
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//otherwise, if wlb is configured and enabled, allow configuration, and show enable as Disable
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//else if (wlbEnabled)
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else if (WlbServerState.GetState(_pool) == WlbServerState.ServerState.Enabled)
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{
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buttonConnect.Visible = false;
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buttonConfigure.Visible = true;
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buttonEnableDisableWlb.Visible = true;
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buttonReports.Visible = true;
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pictureBoxWarningTriangle.Visible = false;
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buttonConfigure.Enabled = true;
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buttonEnableDisableWlb.Enabled = true;
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buttonEnableDisableWlb.Text = Messages.DISABLE_WLB_ELLIPSIS;
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buttonEnableDisableWlb.ImageIndex = 0; //Pause hashes
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if (!passedRbacChecks)
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{
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statusMessage = string.Format(Messages.WLB_NO_PERMISSION_BLURB, rbacUser);
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}
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else
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{
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statusMessage = string.Format(Messages.WLB_ENABLED_BLURB, _pool.Name);
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}
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labelStatus.Text = statusMessage;
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buttonReports.Enabled = true;
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panelConfiguration.Visible = true;
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wlbOptimizePool.Visible = true;
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}
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if (PassedRbacChecks())
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{
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//Show the buttons
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flowLayoutPanelLeftButtons.Visible = true;
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//panelButtons.Visible = true;
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}
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else
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{
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//disable and hide the buttons
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DisableButtons();
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flowLayoutPanelLeftButtons.Visible = false;
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//panelButtons.Visible = false;
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}
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}
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private void DisableButtons()
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{
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buttonConfigure.Enabled = false;
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buttonEnableDisableWlb.Enabled = false;
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}
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internal void EditWLB(Pool pool)
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{
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// Do nothing if there is a WLB action in progress
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if (HelpersGUI.FindActiveWLBAction(pool.Connection) != null)
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{
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log.Debug("Not opening WLB dialog: an WLB action is in progress");
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return;
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}
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if (!pool.Connection.IsConnected)
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{
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log.Debug("Not opening WLB dialog: the connection to the pool is now closed");
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return;
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}
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try
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{
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WlbConfigurationDialog wlbConfigDialog = new WlbConfigurationDialog(pool);
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DialogResult dr = wlbConfigDialog.ShowDialog();
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if (dr == DialogResult.OK)
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{
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_wlbPoolConfiguration = wlbConfigDialog.WlbPoolConfiguration;
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//check to see if the current opt mode matches the current schedule
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if (_wlbPoolConfiguration.AutomateOptimizationMode)
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{
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WlbPoolPerformanceMode scheduledPerfMode = _wlbPoolConfiguration.ScheduledTasks.GetCurrentScheduledPerformanceMode();
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|
if (scheduledPerfMode != _wlbPoolConfiguration.PerformanceMode)
|
|
{
|
|
string blurb = string.Format(Messages.WLB_PROMPT_FOR_MODE_CHANGE_BLURB, getOptModeText(scheduledPerfMode), getOptModeText(_wlbPoolConfiguration.PerformanceMode));
|
|
DialogResult drModeCheck = new ThreeButtonDialog(
|
|
new ThreeButtonDialog.Details(null, blurb, Messages.WLB_PROMPT_FOR_MODE_CHANGE_CAPTION),
|
|
ThreeButtonDialog.ButtonYes,
|
|
ThreeButtonDialog.ButtonNo).ShowDialog(this);
|
|
|
|
if (drModeCheck == DialogResult.Yes)
|
|
{
|
|
_wlbPoolConfiguration.PerformanceMode = scheduledPerfMode;
|
|
}
|
|
}
|
|
}
|
|
SaveWLBConfig(_wlbPoolConfiguration);
|
|
}
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
log.Debug("Unable to open the WLB configuration dialog.", ex);
|
|
return;
|
|
}
|
|
|
|
if (!(WlbServerState.GetState(_pool) == WlbServerState.ServerState.NotConfigured))
|
|
{
|
|
RetrieveConfiguration();
|
|
}
|
|
}
|
|
|
|
private string getPoolWLBStatus(Pool pool)
|
|
{
|
|
return String.Format(Messages.WLB_RECONFIGURE, String.IsNullOrEmpty(WlbServerState.GetFailureMessage(_pool)) ? string.Empty : WlbServerState.GetFailureMessage(_pool));
|
|
}
|
|
|
|
private string getPoolWLBServer(Pool pool)
|
|
{
|
|
if (Helpers.WlbConfigured(pool.Connection))
|
|
{
|
|
return pool.wlb_url;
|
|
}
|
|
return Messages.NONE_DEFINED;
|
|
}
|
|
|
|
private string getPoolOptMode(Pool pool)
|
|
{
|
|
string optMode = Messages.UNKNOWN;
|
|
if (null != _wlbPoolConfiguration && Helpers.WlbConfigured(pool.Connection))
|
|
{
|
|
if (_wlbPoolConfiguration.AutomateOptimizationMode)
|
|
{
|
|
optMode = string.Format(Messages.WLB_SCHEDULED_OPT_MODE, getOptModeText(_wlbPoolConfiguration.PerformanceMode));
|
|
}
|
|
else
|
|
{
|
|
optMode = getOptModeText(_wlbPoolConfiguration.PerformanceMode);
|
|
}
|
|
}
|
|
return optMode;
|
|
}
|
|
|
|
private string getOptModeText(WlbPoolPerformanceMode mode)
|
|
{
|
|
return (mode == WlbPoolPerformanceMode.MaximizePerformance) ? Messages.WLB_OPT_MODE_MAXIMIZEPERFORMANCE : Messages.WLB_OPT_MODE_MAXIMIZEDENSITY;
|
|
}
|
|
|
|
private string getNextOptModeTask(Pool pool)
|
|
{
|
|
//figure out the next task and return a nice string for display
|
|
WlbScheduledTask nextTask = _wlbPoolConfiguration.ScheduledTasks.GetNextExecutingTask();
|
|
WlbScheduledTask.WlbTaskDaysOfWeek dayOfWeek;
|
|
DateTime executeTime;
|
|
|
|
WlbScheduledTask.GetLocalTaskTimes(nextTask.DaysOfWeek, nextTask.ExecuteTime, out dayOfWeek, out executeTime);
|
|
|
|
string localDayOfWeek = WlbScheduledTask.DaysOfWeekL10N(dayOfWeek);
|
|
|
|
return string.Format(Messages.WLB_NEXT_OPT_MODE_SCHEDULE_FORMAT, localDayOfWeek, HelpersGUI.DateTimeToString(executeTime, Messages.DATEFORMAT_HM, true));
|
|
}
|
|
|
|
private string getAutoOptimization(Pool pool)
|
|
{
|
|
if (null != _wlbPoolConfiguration && Helpers.WlbConfigured(pool.Connection))
|
|
{
|
|
return _wlbPoolConfiguration.AutoBalanceEnabled ? Messages.YES : Messages.NO;
|
|
}
|
|
return Messages.UNKNOWN;
|
|
}
|
|
|
|
private string getPoolWlbPowerManagement(Pool pool)
|
|
{
|
|
if (null != _wlbPoolConfiguration && Helpers.WlbConfigured(pool.Connection))
|
|
{
|
|
return _wlbPoolConfiguration.PowerManagementEnabled ? Messages.YES : Messages.NO;
|
|
}
|
|
return Messages.UNKNOWN;
|
|
}
|
|
|
|
private void buttonConnect_Click(object sender, EventArgs e)
|
|
{
|
|
if (Helpers.WlbConfigured(_pool.Connection) &&
|
|
!(WlbServerState.GetState(_pool) == WlbServerState.ServerState.ConnectionError ||
|
|
WlbServerState.GetState(_pool) == WlbServerState.ServerState.NotConfigured))
|
|
{
|
|
return;
|
|
}
|
|
|
|
DisableButtons();
|
|
WlbCredentialsDialog wlbCredentialsDialog = new WlbCredentialsDialog(_pool);
|
|
DialogResult dr = wlbCredentialsDialog.ShowDialog();
|
|
if (dr == DialogResult.OK)
|
|
{
|
|
EnableWLB();
|
|
}
|
|
else
|
|
{
|
|
SetButtonState();
|
|
}
|
|
|
|
}
|
|
|
|
private void buttonReports_Click(object sender, EventArgs e)
|
|
{
|
|
ViewWorkloadReportsCommand viewWorkloadReportsCommand = new ViewWorkloadReportsCommand(Program.MainWindow, _pool);
|
|
viewWorkloadReportsCommand.Execute();
|
|
}
|
|
|
|
#endregion
|
|
}
|
|
}
|
|
|