Initial project's source code check-in.
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// Copyright (c) 2011, Outercurve Foundation.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification,
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// are permitted provided that the following conditions are met:
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//
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// - Redistributions of source code must retain the above copyright notice, this
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// list of conditions and the following disclaimer.
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//
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// - Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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//
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// - Neither the name of the Outercurve Foundation nor the names of its
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// contributors may be used to endorse or promote products derived from this
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// software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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using System;
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using System.Collections.Generic;
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using System.Text;
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using System.IO;
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using System.Threading;
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namespace WebsitePanel.Setup.Actions
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{
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public class ActionProgressEventArgs<T> : EventArgs
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{
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public string StatusMessage { get; set; }
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public T EventData { get; set; }
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public bool Indeterminate { get; set; }
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}
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public class ProgressEventArgs : EventArgs
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{
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public int Value { get; set; }
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}
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public class ActionErrorEventArgs : EventArgs
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{
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public string ErrorMessage { get; set; }
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public Exception OriginalException { get; set; }
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}
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public abstract class Action
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{
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public event EventHandler<ActionProgressEventArgs<int>> ProgressChange;
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public event EventHandler<ActionProgressEventArgs<bool>> PrerequisiteComplete;
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protected object objectLock = new Object();
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public virtual bool Indeterminate
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{
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get
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{
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return true;
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}
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}
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protected void Begin(string message)
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{
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OnInstallProgressChanged(message, 0);
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}
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protected void Finish(string message)
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{
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OnInstallProgressChanged(message, 100);
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}
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protected void OnInstallProgressChanged(string message, int progress)
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{
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if (ProgressChange == null)
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return;
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//
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ProgressChange(this, new ActionProgressEventArgs<int>
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{
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StatusMessage = message,
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EventData = progress,
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Indeterminate = this.Indeterminate
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});
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}
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protected void OnUninstallProgressChanged(string message, int progress)
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{
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if (ProgressChange == null)
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return;
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//
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ProgressChange(this, new ActionProgressEventArgs<int>
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{
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StatusMessage = message,
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EventData = progress,
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Indeterminate = this.Indeterminate
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});
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}
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protected void OnPrerequisiteCompleted(string message, bool result)
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{
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if (PrerequisiteComplete == null)
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return;
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//
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PrerequisiteComplete(this, new ActionProgressEventArgs<bool>
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{
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StatusMessage = message,
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EventData = result
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});
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}
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}
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public interface IActionManager
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{
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/// <summary>
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///
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/// </summary>
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event EventHandler<ProgressEventArgs> TotalProgressChanged;
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/// <summary>
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///
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/// </summary>
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event EventHandler<ActionProgressEventArgs<int>> ActionProgressChanged;
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/// <summary>
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///
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/// </summary>
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event EventHandler<ActionProgressEventArgs<bool>> PrerequisiteComplete;
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/// <summary>
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///
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/// </summary>
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event EventHandler<ActionErrorEventArgs> ActionError;
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/// <summary>
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/// Gets current variables available in this session
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/// </summary>
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SetupVariables SessionVariables { get; }
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/// <summary>
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///
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/// </summary>
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/// <param name="action"></param>
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void AddAction(Action action);
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/// <summary>
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/// Triggers manager to run currentScenario specified
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/// </summary>
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void Start();
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/// <summary>
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/// Triggers manager to run prerequisites verification procedure
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/// </summary>
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void VerifyDistributivePrerequisites();
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/// <summary>
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/// Triggers manager to prepare default parameters for the distributive
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/// </summary>
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void PrepareDistributiveDefaults();
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/// <summary>
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/// Initiates rollback procedure from the action specified
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/// </summary>
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/// <param name="lastSuccessActionIndex"></param>
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void Rollback();
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}
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public class BaseActionManager : IActionManager
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{
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private List<Action> currentScenario;
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//
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private int lastSuccessActionIndex = -1;
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private SetupVariables sessionVariables;
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public SetupVariables SessionVariables
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{
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get
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{
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return sessionVariables;
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}
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}
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protected List<Action> CurrentScenario
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{
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get { return currentScenario; }
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set { currentScenario = value; }
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}
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#region Events
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/// <summary>
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///
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/// </summary>
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public event EventHandler<ProgressEventArgs> TotalProgressChanged;
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/// <summary>
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///
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/// </summary>
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public event EventHandler<ActionProgressEventArgs<int>> ActionProgressChanged;
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/// <summary>
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///
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/// </summary>
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public event EventHandler<ActionProgressEventArgs<bool>> PrerequisiteComplete;
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/// <summary>
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///
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/// </summary>
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public event EventHandler<ActionErrorEventArgs> ActionError;
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/// <summary>
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///
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/// </summary>
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public event EventHandler Initialize;
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#endregion
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protected BaseActionManager(SetupVariables sessionVariables)
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{
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if (sessionVariables == null)
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throw new ArgumentNullException("sessionVariables");
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//
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currentScenario = new List<Action>();
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//
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this.sessionVariables = sessionVariables;
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}
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private void OnInitialize()
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{
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if (Initialize == null)
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return;
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//
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Initialize(this, EventArgs.Empty);
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}
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/// <summary>
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/// Adds action into the list of currentScenario to be executed in the current action manager's session and attaches to its ProgressChange event
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/// to track the action's execution progress.
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/// </summary>
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/// <param name="action">Action to be executed</param>
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/// <exception cref="ArgumentNullException"/>
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public virtual void AddAction(Action action)
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{
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if (action == null)
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throw new ArgumentNullException("action");
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currentScenario.Add(action);
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}
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private void UpdateActionProgress(string actionText, int actionValue, bool indeterminateAction)
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{
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OnActionProgressChanged(this, new ActionProgressEventArgs<int>
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{
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StatusMessage = actionText,
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EventData = actionValue,
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Indeterminate = indeterminateAction
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});
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}
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private void UpdateTotalProgress(int value)
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{
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OnTotalProgressChanged(this, new ProgressEventArgs { Value = value });
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}
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// Fire the Event
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private void OnTotalProgressChanged(object sender, ProgressEventArgs args)
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{
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// Check if there are any Subscribers
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if (TotalProgressChanged != null)
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{
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// Call the Event
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TotalProgressChanged(sender, args);
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}
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}
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// Fire the Event
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private void OnActionProgressChanged(object sender, ActionProgressEventArgs<int> args)
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{
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// Check if there are any Subscribers
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if (ActionProgressChanged != null)
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{
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// Call the Event
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ActionProgressChanged(sender, args);
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}
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}
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// Fire the Event
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private void OnPrerequisiteComplete(object sender, ActionProgressEventArgs<bool> args)
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{
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// Check if there are any Subscribers
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if (PrerequisiteComplete != null)
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{
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// Call the Event
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PrerequisiteComplete(sender, args);
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}
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}
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private void OnActionError(Exception ex)
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{
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//
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if (ActionError == null)
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return;
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//
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var args = new ActionErrorEventArgs
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{
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ErrorMessage = "An unexpected error has occurred. We apologize for this inconvenience.\n" +
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"Please contact Technical Support at support@websitepanel.net.\n\n" +
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"Make sure you include a copy of the Installer.log file from the\n" +
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"WebsitePanel Installer home directory.",
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OriginalException = ex,
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};
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//
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ActionError(this, args);
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}
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/// <summary>
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/// Starts action execution.
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/// </summary>
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public virtual void Start()
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{
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var currentActionType = default(Type);
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#region Executing the installation session
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//
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int totalValue = 0;
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for (int i = 0, progress = 1; i < currentScenario.Count; i++, progress++)
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{
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var item = currentScenario[i];
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// Get the next action from the queue
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var action = item as IInstallAction;
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// Take the action's type to log as much information about it as possible
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currentActionType = item.GetType();
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//
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if (action != null)
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{
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item.ProgressChange += new EventHandler<ActionProgressEventArgs<int>>(action_ProgressChanged);
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try
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{
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// Execute an install action
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action.Run(SessionVariables);
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}
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catch (Exception ex)
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{
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//
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if (currentActionType != default(Type))
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{
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Log.WriteError(String.Format("Failed to execute '{0}' type of action.", currentActionType));
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}
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//
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Log.WriteError("Here is the original exception...", ex);
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//
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if (Utils.IsThreadAbortException(ex))
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return;
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// Notify external clients
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OnActionError(ex);
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//
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Rollback();
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//
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return;
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}
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//
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item.ProgressChange -= new EventHandler<ActionProgressEventArgs<int>>(action_ProgressChanged);
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// Calculate overall current progress status
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totalValue = Convert.ToInt32(progress * 100 / currentScenario.Count);
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// Update overall progress status
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UpdateTotalProgress(totalValue);
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}
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//
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lastSuccessActionIndex = i;
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}
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//
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totalValue = 100;
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//
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UpdateTotalProgress(totalValue);
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//
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#endregion
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}
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void action_ProgressChanged(object sender, ActionProgressEventArgs<int> e)
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{
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// Action progress has been changed
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UpdateActionProgress(e.StatusMessage, e.EventData, e.Indeterminate);
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}
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public virtual void Rollback()
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{
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var currentActionType = default(Type);
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//
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Log.WriteStart("Rolling back");
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//
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UpdateActionProgress("Rolling back", 0, true);
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//
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var totalValue = 0;
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//
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UpdateTotalProgress(totalValue);
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//
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for (int i = lastSuccessActionIndex, progress = 1; i >= 0; i--, progress++)
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{
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var action = currentScenario[i] as IUninstallAction;
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//
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if (action != null)
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{
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action.ProgressChange += new EventHandler<ActionProgressEventArgs<int>>(action_ProgressChanged);
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//
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try
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{
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action.Run(sessionVariables);
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}
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catch (Exception ex)
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{
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if (currentActionType != default(Type))
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Log.WriteError(String.Format("Failed to rollback '{0}' action.", currentActionType));
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//
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Log.WriteError("Here is the original exception...", ex);
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//
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}
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//
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action.ProgressChange -= new EventHandler<ActionProgressEventArgs<int>>(action_ProgressChanged);
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}
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//
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totalValue = Convert.ToInt32(progress * 100 / (lastSuccessActionIndex + 1));
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//
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UpdateTotalProgress(totalValue);
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}
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//
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Log.WriteEnd("Rolled back");
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}
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public void VerifyDistributivePrerequisites()
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{
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var currentActionType = default(Type);
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try
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{
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//
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for (int i = 0; i < currentScenario.Count; i++)
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{
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var item = currentScenario[i];
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// Get the next action from the queue
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var action = item as IPrerequisiteAction;
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//
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currentActionType = item.GetType();
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//
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if (action != null)
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{
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//
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action.Complete += new EventHandler<ActionProgressEventArgs<bool>>(action_Complete);
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// Execute an install action
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action.Run(SessionVariables);
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//
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action.Complete -= new EventHandler<ActionProgressEventArgs<bool>>(action_Complete);
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}
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}
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}
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catch (Exception ex)
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{
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//
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if (currentActionType != default(Type))
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{
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Log.WriteError(String.Format("Failed to execute '{0}' type of action.", currentActionType));
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}
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//
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Log.WriteError("Here is the original exception...", ex);
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//
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if (Utils.IsThreadAbortException(ex))
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return;
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// Notify external clients
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OnActionError(ex);
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//
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return;
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}
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}
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void action_Complete(object sender, ActionProgressEventArgs<bool> e)
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{
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OnPrerequisiteComplete(sender, e);
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}
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public void PrepareDistributiveDefaults()
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{
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//
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OnInitialize();
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//
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var currentActionType = default(Type);
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|
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try
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{
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//
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||||
for (int i = 0; i < currentScenario.Count; i++)
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||||
{
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// Get the next action from the queue
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var action = currentScenario[i] as IPrepareDefaultsAction;
|
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//
|
||||
if (action == null)
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||||
{
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||||
continue;
|
||||
}
|
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//
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currentActionType = action.GetType();
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// Execute an install action
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action.Run(SessionVariables);
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||||
}
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
//
|
||||
if (currentActionType != default(Type))
|
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{
|
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Log.WriteError(String.Format("Failed to execute '{0}' type of action.", currentActionType));
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}
|
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//
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Log.WriteError("Here is the original exception...", ex);
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//
|
||||
if (Utils.IsThreadAbortException(ex))
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return;
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// Notify external clients
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||||
OnActionError(ex);
|
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//
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
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