final Shape shape = peCreateService.createShape(containerShape, false);
// create and set text graphics algorithm
final Text text = gaService.createDefaultText(getDiagram(), shape, label);
Style style = StyleUtil.getStyleForCamelText(getDiagram());
text.setStyle(style);
text.setHorizontalAlignment(Orientation.ALIGNMENT_CENTER);
text.setVerticalAlignment(Orientation.ALIGNMENT_CENTER);
text.setFont(style.getFont());
gaService.setLocationAndSize(text, labelRect.x, labelRect.y, labelRect.width, labelRect.height);
// create link and wire it
// link(shape, addedClass);