xenadmin/XenAdmin/Wizards/PatchingWizard/PlanActions/DownloadPatchPlanAction.cs
Konstantina Chremmou 3e71da4e0a Do not trigger the Action.Change event when the PercentComplete or the Description
are set unless the new value is actually different. Small efficiency improvements
to the DownloadPatch action and plan action.

Signed-off-by: Konstantina Chremmou <konstantina.chremmou@citrix.com>
2018-06-28 12:25:56 +01:00

125 lines
5.0 KiB
C#

/* Copyright (c) Citrix Systems, Inc.
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*
* Redistribution and use in source and binary forms,
* with or without modification, are permitted provided
* that the following conditions are met:
*
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* 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
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using System;
using System.Collections.Generic;
using XenAdmin.Actions;
using XenAdmin.Core;
using XenAPI;
using System.Linq;
using System.IO;
using XenAdmin.Network;
namespace XenAdmin.Wizards.PatchingWizard.PlanActions
{
class DownloadPatchPlanAction : PlanActionWithSession
{
private readonly XenServerPatch patch;
private Dictionary<XenServerPatch, string> AllDownloadedPatches = new Dictionary<XenServerPatch, string>();
private KeyValuePair<XenServerPatch, string> patchFromDisk;
private string tempFileName = null;
public DownloadPatchPlanAction(IXenConnection connection, XenServerPatch patch, Dictionary<XenServerPatch, string> allDownloadedPatches, KeyValuePair<XenServerPatch, string> patchFromDisk)
: base(connection)
{
this.patch = patch;
this.AllDownloadedPatches = allDownloadedPatches;
this.patchFromDisk = patchFromDisk;
}
protected override void RunWithSession(ref Session session)
{
lock (patch)
{
if (Cancelling)
return;
//skip the download if the patch has been already downloaded or we are using a patch from disk
if ((AllDownloadedPatches.ContainsKey(patch) && File.Exists(AllDownloadedPatches[patch]))
|| (patchFromDisk.Key == patch && File.Exists(patchFromDisk.Value)))
{
AddProgressStep(string.Format(Messages.PATCHINGWIZARD_DOWNLOADUPDATE_ACTION_TITLE_SKIPPING, patch.Name));
}
else
{
DownloadFile(ref session);
}
}
}
private void DownloadFile(ref Session session)
{
string patchUri = patch.PatchUrl;
if (string.IsNullOrEmpty(patchUri))
return;
Uri address = new Uri(patchUri);
tempFileName = Path.GetTempFileName();
var exts = Helpers.ElyOrGreater(Connection) ? Branding.UpdateIso : Branding.Update;
var downloadAction = new DownloadAndUnzipXenServerPatchAction(patch.Name, address, tempFileName, true, exts);
downloadAction.Changed += downloadAndUnzipXenServerPatchAction_Changed;
downloadAction.Completed += downloadAndUnzipXenServerPatchAction_Completed;
AddProgressStep(string.Format(Messages.PATCHINGWIZARD_DOWNLOADUPDATE_ACTION_TITLE_WAITING, patch.Name));
downloadAction.RunExternal(session);
}
private void downloadAndUnzipXenServerPatchAction_Changed(ActionBase sender)
{
var downloadAction = sender as DownloadAndUnzipXenServerPatchAction;
if (downloadAction == null)
return;
if (Cancelling)
downloadAction.Cancel();
if (!string.IsNullOrEmpty(downloadAction.DownloadProgressDescription))
ReplaceProgressStep(downloadAction.DownloadProgressDescription);
}
private void downloadAndUnzipXenServerPatchAction_Completed(ActionBase sender)
{
var action = sender as DownloadAndUnzipXenServerPatchAction;
if (action == null)
return;
action.Changed -= downloadAndUnzipXenServerPatchAction_Changed;
action.Completed -= downloadAndUnzipXenServerPatchAction_Completed;
if (action.Succeeded)
AllDownloadedPatches[patch] = action.PatchPath;
}
}
}