tornado_app.py

#!/usr/bin/env python
import datetime
from functools import wraps

import instana
import tornado.httpserver
import tornado.ioloop
import tornado.ioloop
import tornado.web
import tornado.web
import opentracing
from opentracing import Tracer
from instana import options
from instana import tracer
import opentracing.ext.tags as tags
import logging

instana.service_name = "Python Service"

class MainHandler(tornado.web.RequestHandler):
	def initialize(self):
		print ("INITIALIZE this BITCH!")
		self.root_span = opentracing.tracer.start_span(operation_name='root')
		self.root_span.set_tag('RequestHandler','MainHandler')
		self.requestmethod = ""
		self.clazzName = self.__class__.__name__

	def get(self):
		self.requestmethod = "GET"
		get_span = opentracing.tracer.start_span(operation_name="tornade-request", child_of=self.root_span)
		get_span.set_tag(tags.COMPONENT, "Tornado")
		get_span.set_tag(tags.SPAN_KIND, tags.SPAN_KIND_RPC_SERVER)
		get_span.set_tag(tags.PEER_HOSTNAME, "localhost")
		get_span.set_tag(tags.HTTP_URL, "/tornado")
		get_span.set_tag(tags.HTTP_METHOD, "GET")
		get_span.set_tag(tags.HTTP_STATUS_CODE, 200)
		status = self.__class__.get_status(self)
		request = self.request

		self.write("<h1>Welcome to the Python Tracing</h1>")
		self.write("<hr></hr>")
		welcomeMessage = """Welcome to the Instana Python Sensor and Tracing Example. 
		The instana package provides Python metrics and traces (request, queue & cross-host) for Instana. Build Status OpenTracing Badge
		Note This package supports Python 2.7 or greater.
		Any and all feedback is welcome. Happy Python visibility. See the 
		<a href="https://github.com/instana/python-sensor">Python Sensor</a>
		Installation : pip install instana into the virtual-env or container (hosted on pypi)
		"""

		self.write(welcomeMessage)

		get_span.finish()
		self.root_span.finish()


def make_app():
	return tornado.web.Application([
		(r"/", MainHandler),
	])

if __name__ == "__main__":
	app = make_app()
	portNumber = 8889
	app.listen(portNumber)
	print ("Starting Tornado Server on port " + str(portNumber))
	tornado.ioloop.IOLoop.current().start()