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# Copyright (c) Authors of Clover
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
from concurrent import futures
from clover.collector.db.cassops import CassandraOps
import time
import sys
import grpc
import subprocess
import pickle
import logging
import collector_pb2
import collector_pb2_grpc
_ONE_DAY_IN_SECONDS = 60 * 60 * 24
GRPC_PORT = '[::]:50054'
class Controller(collector_pb2_grpc.ControllerServicer):
def __init__(self, init_visibility):
logging.basicConfig(filename='collector_server.log',
level=logging.DEBUG)
self.collector = 0
if init_visibility == 'set_schemas':
cassandra_hosts = pickle.dumps(['cassandra.default'])
self.InitVisibility(collector_pb2.ConfigCassandra(
cassandra_port=9042, cassandra_hosts=cassandra_hosts), "")
def StopCollector(self, r, context):
try:
subprocess.Popen.kill(self.collector)
msg = "Stopped collector on pid: {}".format(self.collector.pid)
except Exception as e:
logging.debug(e)
msg = "Failed to stop collector"
return collector_pb2.CollectorReply(message=msg)
def StartCollector(self, r, context):
try:
self.collector = subprocess.Popen(
["python", "process/collect.py",
"-sinterval={}".format(r.sinterval),
"-c_port={}".format(r.c_port),
"-t_port={}".format(r.t_port), "-t_host={}".format(r.t_host),
"-m_port={}".format(r.m_port), "-m_host={}".format(r.m_host),
"-c_hosts={}".format(pickle.loads(r.c_hosts)), "&"],
shell=False)
msg = "Started collector on pid: {}".format(self.collector.pid)
except Exception as e:
logging.debug(e)
msg = e
return collector_pb2.CollectorReply(message=msg)
def InitVisibility(self, r, context):
try:
cass = CassandraOps(pickle.loads(r.cassandra_hosts),
r.cassandra_port)
cass.init_visibility()
msg = "Added visibility schemas in cassandra"
except Exception as e:
logging.debug(e)
msg = "Failed to initialize cassandra"
return collector_pb2.CollectorReply(message=msg)
def TruncateVisibility(self, r, context):
try:
cass = CassandraOps(pickle.loads(r.cassandra_hosts),
r.cassandra_port)
cass.truncate(pickle.loads(r.schemas))
msg = "Truncated visibility tables"
except Exception as e:
logging.debug(e)
msg = "Failed to truncate visibility"
return collector_pb2.CollectorReply(message=msg)
def serve(init_visibility):
server = grpc.server(futures.ThreadPoolExecutor(max_workers=10))
collector_pb2_grpc.add_ControllerServicer_to_server(
Controller(init_visibility), server)
server.add_insecure_port(GRPC_PORT)
server.start()
try:
while True:
time.sleep(_ONE_DAY_IN_SECONDS)
except KeyboardInterrupt:
server.stop(0)
if __name__ == '__main__':
serve(sys.argv[1])
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