| import sys | |
| import traceback | |
| from webservice.webmodel import NexusProcessingException | |
| class NexusPNGRenderer(object): | |
| def __init__(self, nexus_request): | |
| self._request = nexus_request | |
| def render(self, tornado_handler, result): | |
| tornado_handler.set_header("Content-Type", "image/png") | |
| try: | |
| tornado_handler.write(result.toImage()) | |
| tornado_handler.finish() | |
| except AttributeError: | |
| traceback.print_exc(file=sys.stdout) | |
| raise NexusProcessingException(reason="Unable to convert results to an Image.") |