82 lines
2 KiB
C#
82 lines
2 KiB
C#
|
/*
|
|||
|
|
* Copyright (c) 2018 ETH Zürich, Educational Development and Technology (LET)
|
|||
|
|
*
|
|||
|
|
* This Source Code Form is subject to the terms of the Mozilla Public
|
|||
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|||
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
using System;
|
|||
|
|
using SafeExamBrowser.Contracts.Behaviour.Operations;
|
|||
|
|
using SafeExamBrowser.Contracts.Communication;
|
|||
|
|
using SafeExamBrowser.Contracts.I18n;
|
|||
|
|
using SafeExamBrowser.Contracts.Logging;
|
|||
|
|
using SafeExamBrowser.Contracts.UserInterface;
|
|||
|
|
|
|||
|
|
namespace SafeExamBrowser.Client.Behaviour.Operations
|
|||
|
|
{
|
|||
|
|
internal class RuntimeConnectionOperation : IOperation
|
|||
|
|
{
|
|||
|
|
private bool connected;
|
|||
|
|
private ILogger logger;
|
|||
|
|
private IRuntimeProxy runtime;
|
|||
|
|
private Guid token;
|
|||
|
|
|
|||
|
|
public bool Abort { get; private set; }
|
|||
|
|
public IProgressIndicator ProgressIndicator { private get; set; }
|
|||
|
|
|
|||
|
|
public RuntimeConnectionOperation(ILogger logger, IRuntimeProxy runtime, Guid token)
|
|||
|
|
{
|
|||
|
|
this.logger = logger;
|
|||
|
|
this.runtime = runtime;
|
|||
|
|
this.token = token;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public void Perform()
|
|||
|
|
{
|
|||
|
|
logger.Info("Initializing runtime connection...");
|
|||
|
|
ProgressIndicator?.UpdateText(TextKey.ProgressIndicator_InitializeRuntimeConnection);
|
|||
|
|
|
|||
|
|
try
|
|||
|
|
{
|
|||
|
|
connected = runtime.Connect(token);
|
|||
|
|
|
|||
|
|
logger.Info("Successfully connected to the runtime host.");
|
|||
|
|
}
|
|||
|
|
catch (Exception e)
|
|||
|
|
{
|
|||
|
|
logger.Error("An unexpected error occurred while trying to connect to the runtime host!", e);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (!connected)
|
|||
|
|
{
|
|||
|
|
Abort = true;
|
|||
|
|
logger.Info("Failed to connect to the runtime. Aborting startup...");
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public void Repeat()
|
|||
|
|
{
|
|||
|
|
// Nothing to do here...
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public void Revert()
|
|||
|
|
{
|
|||
|
|
logger.Info("Closing runtime connection...");
|
|||
|
|
ProgressIndicator?.UpdateText(TextKey.ProgressIndicator_CloseRuntimeConnection);
|
|||
|
|
|
|||
|
|
if (connected)
|
|||
|
|
{
|
|||
|
|
try
|
|||
|
|
{
|
|||
|
|
runtime.Disconnect();
|
|||
|
|
}
|
|||
|
|
catch (Exception e)
|
|||
|
|
{
|
|||
|
|
logger.Error("Failed to disconnect from runtime host!", e);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|