/// <summary>
/// When implemented in a derived class, runs the activity’s execution logic.
/// </summary>
/// <param name="context">The execution context in which the activity executes.</param>
protected override void Execute(System.Activities.NativeActivityContext context)
{
// Enter a no persist zone to pin this activity to memory since we are setting up a delegate to receive a callback
var handle = this.noPersistHandle.Get(context);
handle.Enter(context);
// Get (which may create) the extension
var extension = context.GetExtension <Hosting.FolderWatcherExtension>();
string folder = context.GetValue(this.WatchFolder);
if (!System.IO.Directory.Exists(folder))
{
throw new OperationCanceledException(String.Format("The path \"{0}\" is not a directory or does not exist.", folder));
}
// Set a bookmark - the extension will resume when the FileSystemWatcher is fired
var bookmark = context.CreateBookmark(String.Format("FolderWatch_{0:N}", Guid.NewGuid()), FileWatcherBookmarkCallback);
bookmarkWatcher.Set(context, bookmark);
extension.RegisterListener(bookmark, folder, context.GetValue(this.WatchPattern), this.WatchSubfolders);
}
public void Initialize(NativeActivityContext context, Guid scope)
{
this.ThrowIfContextIsNullOrDisposed(context);
base.ThrowIfUninitialized();
this.bookmarkScope.Initialize(context, scope);
}
protected abstract void Execute(NativeActivityContext context);
public void CompleteTransaction(NativeActivityContext context)
{
CompleteTransactionCore(context, null);
}
public void RequireTransactionContext(NativeActivityContext context, Action <NativeActivityTransactionContext, object> callback, object state)
{
RequestOrRequireTransactionContextCore(context, callback, state, true);
}
//[SuppressMessage(FxCop.Category.Design, FxCop.Rule.ConsiderPassingBaseTypesAsParameters,
// Justification = "This method is designed to be called from activities with handle access.")]
public Transaction GetCurrentTransaction(NativeActivityContext context)
{
return(GetCurrentTransactionCore(context));
}
