from __future__ import print_function

 #
 #  Copyright (c) 2011 Edward Langley
 #  All rights reserved.
 #
 #  Redistribution and use in source and binary forms, with or without
 #  modification, are permitted provided that the following conditions
 #  are met:
 #
 #  Redistributions of source code must retain the above copyright notice,
 #  this list of conditions and the following disclaimer.
 #
 #  Redistributions in binary form must reproduce the above copyright
 #  notice, this list of conditions and the following disclaimer in the
 #  documentation and/or other materials provided with the distribution.
 #
 #  Neither the name of the project's author nor the names of its
 #  contributors may be used to endorse or promote products derived from
 #  this software without specific prior written permission.
 #
 #  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 #  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 #  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 #  FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 #  HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 #  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
 #  TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 #  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 #  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 #  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 #  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #
 #

 from twisted.internet import reactor, ssl
 from twisted.web import server

 import traceback

 from jsonrpc.server import ServerEvents, JSON_RPC

 class ExampleServer(ServerEvents):
 	# inherited hooks

 	def log(self, responses, txrequest, error):

 		print(txrequest.code, end=' ')

 		if isinstance(responses, list):
 			for response in responses:

 				msg = self._get_msg(response)

 				print(txrequest, msg)

 		else:

 			msg = self._get_msg(responses)

 			print(txrequest, msg)

 	def findmethod(self, method, args=None, kwargs=None):

 		if method in self.methods:

 			return getattr(self, method)
 		else:
 			return None

 	# helper methods
 	methods = set(['add', 'subtract'])
 	def _get_msg(self, response):

 		print('response', repr(response))

 		return ' '.join(str(x) for x in [response.id, response.result or response.error])

 	def subtract(self, a, b):
 		return a-b
 
 	def add(self, a, b):
 		return a+b
 

 root = JSON_RPC().customize(ExampleServer)

 site = server.Site(root)
 
 
 # 8007 is the port you want to run under. Choose something >1024

 PORT = 8007

 print('Listening on port %d...' % PORT)

 reactor.listenTCP(PORT, site)

 reactor.run()