def render(self):
"""
Renders the requested resource returned from the self.process() method.
"""
# traverse the resource tree
child = getChildForRequest(self.env.tree, self)
# check result and either render direct or in thread
if IFileSystemResource.providedBy(child):
# render direct
return child.render(self)
elif IStatical.providedBy(child):
# render direct
return child.render(self)
elif IScriptResource.providedBy(child):
msg = "Script resources may not be called via SFTP."
raise ForbiddenError(msg)
elif IRESTResource.providedBy(child):
return child.render(self)
elif IResource.providedBy(child):
return child.render(self)
msg = "I don't know how to handle this resource type %s"
raise InternalServerError(msg % type(child))
else:
return self._renderFileResource(data)
elif IStatical.providedBy(result):
# static resources render direct
data = result.render(self)
if isinstance(data, basestring):
return self._renderResource(data)
elif isinstance(data, dict):
return self._renderFolder(data)
elif IRESTResource.providedBy(result):
# REST resource render in thread
d = threads.deferToThread(result.render, self)
d.addCallback(self._cbSuccess)
d.addErrback(self._cbFailed)
return server.NOT_DONE_YET
elif IResource.providedBy(result):
# all other resources render in thread
d = threads.deferToThread(result.render, self)
d.addCallback(self._cbSuccess)
d.addErrback(self._cbFailed)
return server.NOT_DONE_YET
msg = "I don't know how to handle this resource type %s"
raise InternalServerError(msg % type(result))
def _cbSuccess(self, result):
if isinstance(result, dict):
# a folderish resource
return self._renderFolder(result)
elif isinstance(result, basestring):
# already some textual result
return self._renderResource(result)