/// <summary>
///
/// </summary>
/// <param name="eventArgs"></param>
protected void RaiseOpeningEvent(OpeningEventArgs eventArgs)
{
if (this.Opening != null)
{
this.Opening(this, eventArgs);
}
}
/// <summary>
/// Open an existing Configuration from the underlying migration tools
/// DB synchronously.
/// </summary>
/// <param name="sessionGroupUniqueId">The unique id of the configuration</param>
/// <returns><c>true</c> if the open completed, <c>false</c> otherwise.</returns>
public bool Open(Guid sessionGroupUniqueId)
{
if (this.Close())
{
string guid = sessionGroupUniqueId.ToString();
OpeningEventArgs openingEventArgs = new OpeningEventArgs(guid);
this.OnOpeningInternal(openingEventArgs);
this.RaiseOpeningEvent(openingEventArgs);
OpenedEventArgs openedEventArgs = null;
try
{
base.Model = ConfigurationModel.Load(sessionGroupUniqueId);
openedEventArgs = new OpenedEventArgs(guid, null);
}
catch (Exception exception)
{
openedEventArgs = new OpenedEventArgs(guid, exception);
}
try
{
this.OnOpenedInternal(openedEventArgs);
}
catch (Exception exception)
{
openedEventArgs = new OpenedEventArgs(guid, exception);
}
this.RaiseOpenedEvent(openedEventArgs);
return(true);
}
return(false);
}
private bool Open(Stream stream, string path)
{
if (this.Close())
{
OpeningEventArgs openingEventArgs = new OpeningEventArgs(path);
this.OnOpeningInternal(openingEventArgs);
this.RaiseOpeningEvent(openingEventArgs);
OpenedEventArgs openedEventArgs = null;
try
{
this.OpenInternal(stream, path);
openedEventArgs = new OpenedEventArgs(path, null);
}
catch (Exception exception)
{
openedEventArgs = new OpenedEventArgs(path, exception);
}
try
{
this.OnOpenedInternal(openedEventArgs);
}
catch (Exception exception)
{
openedEventArgs = new OpenedEventArgs(path, exception);
}
this.RaiseOpenedEvent(openedEventArgs);
return(true);
}
return(false);
}
private void OpenAsync(Stream stream, string path)
{
if (this.Close())
{
OpeningEventArgs openingEventArgs = new OpeningEventArgs(path);
this.OnOpeningInternal(openingEventArgs);
this.RaiseOpeningEvent(openingEventArgs);
SendOrPostCallback onOpened = delegate(object eventArgs)
{
OpenedEventArgs openedEventArgs = eventArgs as OpenedEventArgs;
Debug.Assert(openedEventArgs != null);
this.OnOpenedInternal(openedEventArgs);
};
SendOrPostCallback raiseEvent = delegate(object eventArgs)
{
OpenedEventArgs openedEventArgs = eventArgs as OpenedEventArgs;
Debug.Assert(openedEventArgs != null);
this.RaiseOpenedEvent(openedEventArgs);
};
AnonymousMethod open = delegate
{
OpenedEventArgs openedEventArgs = null;
try
{
this.OpenInternal(stream, path);
openedEventArgs = new OpenedEventArgs(path, null);
}
catch (ConfigurationSchemaViolationException e)
{
openedEventArgs = new OpenedEventArgs(path, e);
}
catch (ConfigurationBusinessRuleViolationException e)
{
openedEventArgs = new OpenedEventArgs(path, e);
}
catch (Exception exception)
{
openedEventArgs = new OpenedEventArgs(path, exception);
}
try
{
// For the OnOpened virtual method, do a synchronous send so that we
// can trap any exceptions and report them to the event handlers
this.asyncOperation.SynchronizationContext.Send(onOpened, openedEventArgs);
}
catch (Exception exception)
{
openedEventArgs = new OpenedEventArgs(path, exception);
}
// For the Opened event, do an asynchronous post because we don't care about
// exceptions that are raised by event handlers
this.asyncOperation.Post(raiseEvent, openedEventArgs);
};
open.BeginInvoke(null, null);
}
}
/// <summary>
///
/// </summary>
/// <param name="eventArgs"></param>
protected void OnOpeningInternal(OpeningEventArgs eventArgs)
{
this.OnOpening(eventArgs);
}
/// <summary>
/// Called before the Opening event is raised.
/// </summary>
/// <remarks>
/// Notes to Inheritors: When overriding OnOpening in a derived class, calling the base class's OnOpening method is not necessary because there is no initial implementation.
/// </remarks>
/// <param name="eventArgs">An EventArgs that contains the event data.</param>
protected virtual void OnOpening(OpeningEventArgs eventArgs)
{
}