[Eclipse][Plug-in]IProgressMonitor の取得方法

IWorkbench workbench = PlatformUI.getWorkbench();
IWorkbenchWindow window = workbench.getActiveWorkbenchWindow();
WorkbenchWindow  workbenchWindow = (WorkbenchWindow) window;
IActionBars bars = workbenchWindow.getActionBars();
IStatusLineManager lineManager = bars.getStatusLineManager();
IProgressMonitor monitor = lineManager.getProgressMonitor();