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https://github.com/xcp-ng/xenadmin.git
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847eebd32c
Add New Virtual Page (VDI): By default, the SR's default initial size allocation percentage (that may be different for different SRs) is used. Once the user has changed the initial allocation rate, the page would only use the custom value from that point. New SR Wizard: Minimal change in if statement and added comment in RunNextPagePrecheck method for LvmoHba.
403 lines
13 KiB
C#
403 lines
13 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.ComponentModel;
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using System.Windows.Forms;
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using XenAdmin.Network;
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using XenAPI;
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using XenAdmin.Core;
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namespace XenAdmin.Controls
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{
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public partial class SrPicker : UserControl
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{
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// Migrate is the live VDI move operation
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public enum SRPickerType { VM, InstallFromTemplate, MoveOrCopy, Migrate, LunPerVDI };
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private SRPickerType usage = SRPickerType.VM;
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//Used in the MovingVDI usage
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private VDI[] existingVDIs;
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private IXenConnection connection;
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private Host affinity;
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private SrPickerItem LastSelectedItem;
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public event EventHandler ItemSelectionNull;
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public event EventHandler ItemSelectionNotNull;
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public long DiskSize = 0;
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public decimal? OverridenInitialAllocationRate = null;
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public SrPicker(IXenConnection connection, SRPickerType usage) : this(connection)
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{
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this.usage = usage;
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}
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private readonly CollectionChangeEventHandler SR_CollectionChangedWithInvoke;
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public SrPicker(IXenConnection connection)
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{
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this.connection = connection;
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InitializeComponent();
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srListBox.ShowCheckboxes = false;
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srListBox.ShowDescription = true;
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srListBox.ShowImages = true;
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srListBox.NodeIndent = 3;
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srListBox.SelectedIndexChanged += new EventHandler(srListBox_SelectedIndexChanged);
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SrHint.Text = usage == SRPickerType.MoveOrCopy ?
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Messages.IMPORT_WIZARD_TEMPLATE_SR_HINT_TEXT :
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Messages.IMPORT_WIZARD_VM_SR_HINT_TEXT;
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Pool pool = Helpers.GetPoolOfOne(connection);
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if (pool != null)
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{
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pool.PropertyChanged -= Server_PropertyChanged;
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pool.PropertyChanged += Server_PropertyChanged;
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}
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SR_CollectionChangedWithInvoke=Program.ProgramInvokeHandler(SR_CollectionChanged);
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connection.Cache.RegisterCollectionChanged<SR>(SR_CollectionChangedWithInvoke);
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refresh();
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}
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public SrPicker()
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{
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InitializeComponent();
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}
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public SRPickerType Usage
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{
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set { usage = value; }
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}
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public void SetUsageAsMovingVDI(VDI[] vdis)
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{
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usage = SRPickerType.MoveOrCopy;
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existingVDIs = vdis;
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}
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public void SetUsageAsMigrateVDI(VDI[] vdis)
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{
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usage = SRPickerType.Migrate;
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existingVDIs = vdis;
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}
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/// <summary>
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/// For new disk dialog only
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/// </summary>
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public IXenConnection Connection
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{
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get
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{
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return connection;
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}
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set
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{
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if (value == null)
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return;
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connection = value;
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srListBox.ShowCheckboxes = false;
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srListBox.ShowDescription = true;
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srListBox.ShowImages = true;
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srListBox.NodeIndent = 3;
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srListBox.SelectedIndexChanged += new EventHandler(srListBox_SelectedIndexChanged);
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SrHint.Text = Messages.NEW_DISK_DIALOG_SR_HINT_TEXT;
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Pool pool = Helpers.GetPoolOfOne(connection);
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if (pool != null)
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{
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pool.PropertyChanged -= Server_PropertyChanged;
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pool.PropertyChanged += Server_PropertyChanged;
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}
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connection.Cache.RegisterCollectionChanged<SR>(SR_CollectionChangedWithInvoke);
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refresh();
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}
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}
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void srListBox_SelectedIndexChanged(object sender, EventArgs e)
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{
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onItemSelect();
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}
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private void onItemSelect()
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{
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SrPickerItem item = srListBox.SelectedItem as SrPickerItem;
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if (item == null || !item.Enabled)
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{
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if (ItemSelectionNull != null)
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ItemSelectionNull(null, null);
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return;
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}
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else if (ItemSelectionNotNull != null)
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{
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ItemSelectionNotNull(null, null);
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}
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if (!item.Enabled && LastSelectedItem != null && LastSelectedItem.TheSR.opaque_ref != item.TheSR.opaque_ref)
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srListBox.SelectedItem = LastSelectedItem;
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else if (!item.Enabled && LastSelectedItem != null && LastSelectedItem.TheSR.opaque_ref == item.TheSR.opaque_ref)
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{
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SrPickerItem first = srListBox.Items[0] as SrPickerItem;
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if (first != null && first.Enabled)
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srListBox.SelectedItem = first;
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else
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srListBox.SelectedItem = null;
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}
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else
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LastSelectedItem = item;
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}
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public SR SR
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{
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get
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{
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return srListBox.SelectedItem is SrPickerItem && (srListBox.SelectedItem as SrPickerItem).Enabled ? (srListBox.SelectedItem as SrPickerItem).TheSR : null;
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}
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}
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public SR DisabledSelectedSR
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{
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get
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{
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return srListBox.SelectedItem is SrPickerItem && !(srListBox.SelectedItem as SrPickerItem).Enabled ? (srListBox.SelectedItem as SrPickerItem).TheSR : null;
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}
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}
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public SR DefaultSR = null;
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public void SetAffinity(Host host)
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{
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affinity = host;
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refresh();
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}
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/// <summary>
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/// Returns how much disk space is required to create the disk on an SR
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/// This depends on whether the SR is thin provisioned and on what the initial allocation rate is
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/// </summary>
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/// <param name="sr"></param>
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/// <returns></returns>
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private long GetRequiredDiskSizeForSR(SR sr)
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{
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decimal allocationRate = 1;
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if (sr != null && sr.IsThinProvisioned)
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{
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if (OverridenInitialAllocationRate.HasValue)
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{
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allocationRate = OverridenInitialAllocationRate.Value;
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}
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else
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{
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decimal temp = 0;
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if (sr.sm_config != null && sr.sm_config.ContainsKey("initial_allocation") && decimal.TryParse(sr.sm_config["initial_allocation"], out temp))
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{
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allocationRate = temp;
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}
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}
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}
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return (long)(allocationRate * DiskSize);
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}
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private readonly SrPickerItemFactory itemFactory = new SrPickerItemFactory();
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public void refresh()
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{
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Program.AssertOnEventThread();
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SR selectedSr = SR;
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bool selected = false;
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srListBox.BeginUpdate();
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try
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{
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srListBox.ClearAllNodes();
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foreach (SR sr in connection.Cache.SRs)
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{
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SrPickerItem item = itemFactory.PickerItem(sr, usage, affinity, GetRequiredDiskSizeForSR(sr), existingVDIs);
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if (item.Show)
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srListBox.AddNode(item);
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foreach (PBD pbd in sr.Connection.ResolveAll(sr.PBDs))
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{
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if (pbd != null)
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{
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pbd.PropertyChanged -= Server_PropertyChanged;
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pbd.PropertyChanged += Server_PropertyChanged;
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}
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}
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sr.PropertyChanged -= Server_PropertyChanged;
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sr.PropertyChanged += Server_PropertyChanged;
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}
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}
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finally
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{
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srListBox.EndUpdate();
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}
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if (selectedSr != null)
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{
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foreach (SrPickerItem node in srListBox.Items)
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{
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if (node.TheSR != null && node.TheSR.uuid == selectedSr.uuid)
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{
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srListBox.SelectedItem = node;
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onItemSelect();
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selected = true;
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break;
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}
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}
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}
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if (!selected && srListBox.Items.Count > 0)
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{// If no selection made, select default SR
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if (!selectDefaultSR())
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{
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// If no default SR, select first entry in list
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srListBox.SelectedIndex = 0;
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onItemSelect();
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}
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}
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}
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private void Server_PropertyChanged(object sender, PropertyChangedEventArgs e)
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{
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if (e.PropertyName == "name_label" || e.PropertyName == "PBDs" || e.PropertyName == "physical_utilisation" || e.PropertyName == "currently_attached" || e.PropertyName == "default_SR")
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Program.Invoke(this, refresh);
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}
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void SR_CollectionChanged(object sender, CollectionChangeEventArgs e)
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{
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Program.Invoke(this, refresh);
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}
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/// <summary>
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/// Selects the default SR, if it exists.
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/// </summary>
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/// <returns>true if the default SR was selected, otherwise false.</returns>
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public bool selectDefaultSR()
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{
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if (DefaultSR == null)
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return false;
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foreach (SrPickerItem node in srListBox.Items)
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{
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if (node.TheSR != null && node.TheSR == DefaultSR && node.Enabled)
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{
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srListBox.SelectedItem = node;
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return true;
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}
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}
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return false;
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}
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internal void selectSRorNone(SR TheSR)
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{
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foreach (SrPickerItem node in srListBox.Items)
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{
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if (node.TheSR != null && node.TheSR.opaque_ref == TheSR.opaque_ref)
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{
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srListBox.SelectedItem = node;
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return;
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}
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}
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if (ItemSelectionNull != null)
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ItemSelectionNull(null, null);
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}
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internal void selectDefaultSROrAny()
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{
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if (selectDefaultSR())
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return;
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foreach (SrPickerItem item in srListBox.Items)
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{
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if (item == null)
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continue;
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if (item.Enabled)
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{
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selectSRorNone(item.TheSR);
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return;
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}
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}
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if (ItemSelectionNull != null)
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ItemSelectionNull(null, null);
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}
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public void selectSRorDefaultorAny(SR sr)
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{
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if (sr != null)
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{
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foreach (SrPickerItem node in srListBox.Items)
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{
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if (node.TheSR != null && node.TheSR.opaque_ref == sr.opaque_ref)
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{
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srListBox.SelectedItem = node;
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return;
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}
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}
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}
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selectDefaultSROrAny();
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}
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public bool ValidSelectionExists
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{
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get
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{
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foreach (SrPickerItem item in srListBox.Items)
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{
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if (item == null)
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continue;
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if (item.Enabled)
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{
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return true;
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}
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}
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return false;
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}
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}
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}
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}
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