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topic_analysis_grpc.py
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topic_analysis_grpc.py
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# Tested on python3.6
import grpc
from concurrent import futures
import time
import logging
import sys
import pathlib
import os
import csv
import numpy as np
import datetime
import random
from nltk.tokenize import sent_tokenize
SLEEP_TIME = 86400 # One day
sys.path.append(str(pathlib.Path(os.path.abspath('')).parents[0])+'/topic-analysis/plsa-service/plsa')
sys.path.append(str(pathlib.Path(os.path.abspath('')).parents[0])+'/topic-analysis/plsa-service/preprocessing')
print(sys.path)
print(os.getcwd())
import plsa_wrapper
import threading
import multiprocessing as mp
from service_spec import topic_analysis_pb2
from service_spec import topic_analysis_pb2_grpc
class TopicAnalysis(topic_analysis_pb2_grpc.TopicAnalysisServicer):
def PLSA(self,request,context):
print('>>>>>>>>>>>>>>In endpoint plsa')
print(time.strftime("%c"))
docs = request.docs
num_topics = request.num_topics
topic_divider = request.topic_divider
maxiter = request.maxiter
beta = request.beta
param_error = False
message = ''
try :
if len(docs) < 1:
message = 'Length of docs should be at one'
param_error =True
if len(docs) == 1:
docs = sent_tokenize(docs[0])
if topic_divider < 0:
param_error = True
message = 'topic_divider parameter can not be a negative nubmer'
if topic_divider == 0 and num_topics < 2:
param_error = True
message = 'Number of topics should be at least two'
if maxiter < 0:
param_error = True
message = 'maxiter should be greater than zero'
if beta < 0 or beta > 1:
param_error = True
message = 'beta should have value of (0,1]'
if param_error:
print(time.strftime("%c"))
print('Waiting for next call on port 5000.')
raise grpc.RpcError(grpc.StatusCode.UNKNOWN, message)
except Exception as e:
logging.exception("message")
print(time.strftime("%c"))
print('Waiting for next call on port 5000.')
raise grpc.RpcError(grpc.StatusCode.UNKNOWN, str(e))
try:
unique_folder_naming = str(datetime.datetime.now()).replace(':', '-').replace('.', '-') + '^' + str(random.randint(100000000000, 999999999999)) + '/'
# thread1 = threading.Thread(target=generate_topics_plsa, args=(docs,unique_folder_naming,num_topics,topic_divider,maxiter,beta))
p1 = mp.Process(target=generate_topics_plsa, args=(docs,unique_folder_naming,num_topics,topic_divider,maxiter,beta))
p1.start()
resp = topic_analysis_pb2.PLSAResponse(status=True, message='success', handle=unique_folder_naming[:-1].replace('-','e').replace(' ','d').replace('^','y'))
print('status:',resp.status)
print('message:',resp.message)
print('Waiting for next call on port 5000.')
return resp
except Exception as e:
logging.exception("message")
print(time.strftime("%c"))
print('Waiting for next call on port 5000.')
raise grpc.RpcError(grpc.StatusCode.UNKNOWN, str(e))
def generate_topics_plsa(docs,unique_folder_naming,num_topics,topic_divider,maxiter,beta):
# Put try catch here and add status
s = plsa_wrapper.PLSA_wrapper(docs)
try:
os.mkdir(s.plsa_parameters_path+unique_folder_naming)
# 1/0
with open(s.plsa_parameters_path+unique_folder_naming+'status.txt','w') as f:
f.write('Analysis started.')
s.unique_folder_naming = unique_folder_naming
s.num_topics = num_topics
s.topic_divider = topic_divider
s.max_iter = maxiter
s.beta = beta
s.write_to_json()
s.generate_topics_json()
except Exception as e:
logging.exception("message")
with open(s.plsa_parameters_path+unique_folder_naming+'status.txt','w') as f:
f.write('Failed.')
f.write('\n')
f.write(str(e))
def serve():
server = grpc.server(futures.ThreadPoolExecutor(max_workers=1))
topic_analysis_pb2_grpc.add_TopicAnalysisServicer_to_server(TopicAnalysis(), server)
print('Starting server. Listening on port 5000.')
server.add_insecure_port('127.0.0.1:5000')
server.start()
try:
while True:
time.sleep(SLEEP_TIME)
except KeyboardInterrupt:
server.stop(0)
def serve_test():
server = grpc.server(futures.ThreadPoolExecutor(max_workers=10))
topic_analysis_pb2_grpc.add_TopicAnalysisServicer_to_server(TopicAnalysis(), server)
print('Starting server. Listening on port 5000.')
server.add_insecure_port('127.0.0.1:5000')
return server
__end__ = '__end__'
if __name__ == '__main__':
serve()
pass