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power_server.py
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power_server.py
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import time
import traceback
from concurrent.futures import ThreadPoolExecutor
import tornado.ioloop
import tornado.options
import tornado.web
from tornado import gen
from tornado.concurrent import run_on_executor
import globals
import init
from util import logger
power_cache = {}
cache_ttl = 10
class api_v1_power(tornado.web.RequestHandler):
if len(globals.COM_SHARD) <= 0:
executor = ThreadPoolExecutor(1)
else:
executor = ThreadPoolExecutor(len(globals.COM_SHARD) * 2)
@run_on_executor
def read_power_by_IP(self, ip):
if ip in globals.METERS_IP_MAP:
SN = globals.METERS_IP_MAP[ip][0]
SER = globals.METERS_IP_MAP[ip][1]
return globals.COM_SHARD[SER].read_power(SN)
else:
logger.error("IP %s record not found" % ip)
@gen.coroutine
def get(self):
start_point = time.time()
if "ip" in self.request.arguments:
ipaddr = self.get_argument("ip")
else:
ipaddr = self.request.remote_ip
e = None
if ipaddr not in globals.METERS_IP_MAP:
elapsed = round(time.time() - start_point, 3)
self.write({'time': time.time(),
"version": "0.0",
"power": -1,
"error": True,
"msg": "IP Not Found",
"ipaddr": ipaddr,
"elapsed": elapsed,
})
else:
try:
power = yield self.read_power_by_IP(ipaddr)
elapsed = round(time.time() - start_point, 3)
if power is None:
self.write({'time': time.time(),
"version": "0.0",
"power": -1,
"error": True,
"msg": "broken data",
"ipaddr": ipaddr,
"elapsed": elapsed,
})
else:
self.write({
'time': time.time(),
"version": "0.0",
"power": power,
"error": False,
"msg": "success",
"ipaddr": ipaddr,
"elapsed": elapsed,
})
power_cache[ipaddr] = [power, time.time()]
logger.debug("Request %s , cost %sms." % (ipaddr, round(elapsed * 1000, 3)))
except Exception as excepts:
traceback.print_exc()
e = excepts
pass
if e:
elapsed = round(time.time() - start_point, 3)
logger.exception("Meters read error:%s" % traceback.format_exc())
self.write({'time': time.time(),
"version": "0.0",
"power": -1,
"error": True,
"msg": e,
"ipaddr": ipaddr,
"elapsed": elapsed,
})
self.finish()
class api_v1_power_cached(tornado.web.RequestHandler):
if len(globals.COM_SHARD) <= 0:
executor = ThreadPoolExecutor(1)
else:
executor = ThreadPoolExecutor(len(globals.COM_SHARD) * 2)
@run_on_executor
def read_power_by_IP(self, ip):
if ip in globals.METERS_IP_MAP:
SN = globals.METERS_IP_MAP[ip][0]
SER = globals.METERS_IP_MAP[ip][1]
return globals.COM_SHARD[SER].read_power(SN)
else:
logger.error("IP %s record not found" % ip)
@gen.coroutine
def get(self):
start_point = time.time()
if "ip" in self.request.arguments:
ipaddr = self.get_argument("ip")
else:
ipaddr = self.request.remote_ip
e = None
if ipaddr not in globals.METERS_IP_MAP:
elapsed = round(time.time() - start_point, 3)
self.write({'time': time.time(),
"version": "0.0",
"power": -1,
"error": True,
"msg": "IP Not Found",
"ipaddr": ipaddr,
"elapsed": elapsed,
})
else:
try:
if ipaddr in power_cache:
if time.time() < power_cache[ipaddr][1] + cache_ttl:
power = power_cache[ipaddr][0]
else:
power = yield self.read_power_by_IP(ipaddr)
else:
power = yield self.read_power_by_IP(ipaddr)
elapsed = round(time.time() - start_point, 3)
if power is None:
self.write({'time': time.time(),
"version": "0.0",
"power": -1,
"error": True,
"msg": "broken data",
"ipaddr": ipaddr,
"elapsed": elapsed,
})
else:
self.write({
'time': time.time(),
"version": "0.0",
"power": power,
"error": False,
"msg": "success",
"ipaddr": ipaddr,
"elapsed": elapsed,
})
power_cache[ipaddr] = [power, time.time()]
logger.debug("Request %s , cost %sms." % (ipaddr, round(elapsed * 1000, 3)))
except Exception as excepts:
traceback.print_exc()
e = excepts
pass
if e:
elapsed = round(time.time() - start_point, 3)
logger.exception("Meters read error:%s" % traceback.format_exc())
self.write({'time': time.time(),
"version": "0.0",
"power": -1,
"error": True,
"msg": e,
"ipaddr": ipaddr,
"elapsed": elapsed,
})
self.finish()
class api_v1_environment(tornado.web.RequestHandler):
if len(globals.COM_SHARD) <= 0:
executor = ThreadPoolExecutor(1)
else:
executor = ThreadPoolExecutor(len(globals.COM_SHARD) * 2)
@run_on_executor
def read_temp_by_name(self, name):
addr = globals.TEMP_MAP[name][0]
SER = globals.TEMP_MAP[name][1]
return globals.COM_SHARD[SER].read_env(addr)
@gen.coroutine
def get(self):
start_point = time.time()
if "name" in self.request.arguments:
name = self.get_argument("name")
else:
self.write({'time': time.time(),
"version": "0.0",
"temperature": "NULL",
"humidity": "NULL",
"error": True,
"msg": "too few arguments",
"elapsed": 0.00,
})
self.finish()
return
if name not in globals.TEMP_MAP:
elapsed = round(time.time() - start_point, 3)
self.write({'time': time.time(),
"version": "0.0",
"temperature": "NULL",
"humidity": "NULL",
"error": True,
"msg": "Temper Not Found",
"elapsed": elapsed,
})
else:
try:
temp,humi = yield self.read_temp_by_name(name)
elapsed = round(time.time() - start_point, 3)
if temp == humi is None:
self.write({'time': time.time(),
"version": "0.0",
"temperature": "NULL",
"humidity": "NULL",
"error": True,
"msg": "Temper Read Fail!",
"elapsed": elapsed,
})
else:
self.write({'time': time.time(),
"version": "0.0",
"temperature": temp,
"humidity": humi,
"error": False,
"msg": "",
"elapsed": elapsed,
})
logger.debug("Request temper %s , cost %sms." % (name, round(elapsed * 1000, 3)))
except Exception as excepts:
traceback.print_exc()
pass
self.finish()
class ra9(tornado.web.RequestHandler):
def get(self):
self.write("I am alive")
self.finish()
def make_app():
return tornado.web.Application([
(r"/api/v1/power", api_v1_power),
(r"/api/v1/power_cached", api_v1_power_cached),
(r"/api/v1/environment", api_v1_environment),
(r"/ra9", ra9),
], autoreload=False)
def run():
app = make_app()
logger.info("Server listening on %s:%s" % (init.LISTEN_IP, init.LISTEN_PORT,))
app.listen(init.LISTEN_PORT, address=init.LISTEN_IP)
tornado.ioloop.IOLoop.current().start()