if(format.equals("png")) {
externalContext.setResponseContentType("image/png");
BitmapCanvasProvider bitmapCanvasProvider = new BitmapCanvasProvider(out, "image/x-png", 150, BufferedImage.TYPE_BYTE_BINARY, false, orientation);
generator.generate(bitmapCanvasProvider, value);
bitmapCanvasProvider.finish();
}
else if(format.equals("svg")) {
externalContext.setResponseContentType("image/svg+xml");
SVGCanvasProvider svgCanvasProvider = new SVGCanvasProvider(false, orientation);