/// <summary>
/// Check for updates synchronously
/// </summary>
public void CheckForUpdates()
{
if (IsWorking)
{
throw new InvalidOperationException("Another update process is already in progress");
}
else if (UpdateFeedReader == null)
{
throw new InvalidOperationException("UpdateFeedReader must be set before calling CheckForUpdates()");
}
else if (UpdateSource == null)
{
throw new InvalidOperationException("UpdateSource must be set before calling CheckForUpdates()");
}
using (WorkScope.New(isWorking => IsWorking = isWorking))
{
if (State != UpdateProcessState.NotChecked)
{
throw new InvalidOperationException("Already checked for updates; to reset the current state call CleanUp()");
}
lock (UpdatesToApply)
{
UpdatesToApply.Clear();
var tasks = UpdateFeedReader.Read(UpdateSource.GetUpdatesFeed());
foreach (var t in tasks)
{
if (ShouldStop)
{
throw new UserAbortException();
}
if (t.UpdateConditions == null || t.UpdateConditions.IsMet(t)) // Only execute if all conditions are met
{
UpdatesToApply.Add(t);
}
}
}
State = UpdateProcessState.Checked;
}
}
/// <summary>
/// Check for updates synchronously
/// </summary>
public void CheckForUpdates()
{
if (IsWorking)
{
throw new InvalidOperationException("Another update process is already in progress");
}
else if (UpdateFeedReader == null)
{
throw new InvalidOperationException("UpdateFeedReader must be set before calling CheckForUpdates()");
}
else if (UpdateSource == null)
{
throw new InvalidOperationException("UpdateSource must be set before calling CheckForUpdates()");
}
using (WorkScope.New(isWorking => IsWorking = isWorking))
{
if (State != UpdateProcessState.NotChecked)
{
throw new InvalidOperationException("Already checked for updates; to reset the current state call CleanUp()");
}
lock (UpdatesToApply)
{
UpdatesToApply.Clear();
IList <IUpdateTask> tasks = null;
int currentRetry = 0;
while (currentRetry < MaximumRetries)
{
++currentRetry;
try
{
tasks = UpdateFeedReader.Read(UpdateSource.GetUpdatesFeed());
break;
}
catch (Exception ex)
{
Logger.Log(ex);
if (ex is WebException)
{
var e = ex as WebException;
if (e.Status == WebExceptionStatus.Timeout ||
e.Status == WebExceptionStatus.ConnectFailure ||
e.Status == WebExceptionStatus.NameResolutionFailure)
{
throw new UpdateProcessFailedException("Failed to retrieve feed: " + ex.ToString());
}
}
if (currentRetry == MaximumRetries)
{
throw new UpdateProcessFailedException("Failed to retrieve feed: " + ex.ToString());
}
Thread.Sleep(RetriesTimeout);
}
}
foreach (var t in tasks)
{
if (ShouldStop)
{
throw new UserAbortException();
}
if (t.UpdateConditions == null || t.UpdateConditions.IsMet(t)) // Only execute if all conditions are met
{
UpdatesToApply.Add(t);
}
}
}
State = UpdateProcessState.Checked;
}
}
