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r"""wslink is a module that extends any
wslink related classes for the purposes of vtkWeb.
"""
from __future__ import absolute_import, division, print_function
# import inspect, types, string, random, logging, six, json, re, base64
import json, base64, logging, time
from vtkmodules.web.errors import WebDependencyMissingError
try:
from wslink import websocket
from wslink import register as exportRpc
except ImportError:
raise WebDependencyMissingError()
from vtkmodules.web import protocols
from vtkmodules.vtkWebCore import vtkWebApplication
# =============================================================================
application = None
# =============================================================================
#
# Base class for vtkWeb ServerProtocol
#
# =============================================================================
class ServerProtocol(websocket.ServerProtocol):
"""
Defines the core server protocol for vtkWeb. Adds support to
marshall/unmarshall RPC callbacks that involve ServerManager proxies as
arguments or return values.
Applications typically don't use this class directly, but instead
sub-class it and call self.registerVtkWebProtocol() with useful vtkWebProtocols.
"""
def __init__(self):
logging.info("Creating SP")
self.setSharedObject("app", self.initApplication())
websocket.ServerProtocol.__init__(self)
def initApplication(self):
"""
Let subclass optionally initialize a custom application in lieu
of the default vtkWebApplication.
"""
global application
if not application:
application = vtkWebApplication()
return application
def setApplication(self, application):
self.setSharedObject("app", application)
def getApplication(self):
return self.getSharedObject("app")
def registerVtkWebProtocol(self, protocol):
self.registerLinkProtocol(protocol)
def getVtkWebProtocols(self):
return self.getLinkProtocols()
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