def main():
try:
# print to a file
# f = file('log.txt', 'w')
# sys.stdout = f
# get MongoDB client and set it in DataService
client = MongoClient('localhost', 27017) # or client = MongoClient('mongodb://localhost:27017/')
DataService.init(client)
# persist_download_history_and_app_info()
user_download_history = load_user_download_history()
app_info = load_app_info()
persist_top_5_apps_for_app(user_download_history, app_info)
# print for testing
#print "app_info: \n " + str(load_top_5_apps('C10107104'))
except Exception as e:
print "Exception! Go fix it!"
print e
finally:
# clean up work
if 'client' in locals():
client.close()
def main():
try:
# print to a file
# f = file('log.txt', 'w')
# sys.stdout = f
# get MongoDB client and set it in DataService
client = MongoClient(
'localhost',
27017) # or client = MongoClient('mongodb://localhost:27017/')
DataService.init(client)
# persist_download_history_and_app_info()
user_download_history = load_user_download_history()
app_info = load_app_info()
persist_top_5_apps_for_app(user_download_history, app_info)
# print for testing
#print "app_info: \n " + str(load_top_5_apps('C10107104'))
except Exception as e:
print "Exception! Go fix it!"
print e
finally:
# clean up work
if 'client' in locals():
client.close()
def main():
try:
client = MongoClient('localhost', 27017)
DataService.init(client)
user_download_history = DataService.retrieve_user_download_history()
app_info = DataService.retrieve_app_info()
for app in app_info.keys():
calculate_top_5(app, user_download_history.values())
except Exception as e:
print(e)
finally:
if 'client' in locals():
client.close()
def main():
try:
client = MongoClient('localhost', 27017)
DataService.init(client)
user_download_history = DataService.retrieve_user_download_history()
# calculate_top_5('C10063783', user_download_history.values())
app_info = DataService.retrieve_app_info()
for app in app_info.keys():
calculate_top_5(app, user_download_history.values())
except Exception as e:
print(e)
finally:
if 'client' in locals():
client.close()
def main():
try:
#get MongoDB client and set it in DataService
client = MongoClient('localhost', 27017)
DataService.init(client)
#work flow
user_download_history = DataService.retrieve_user_download_history()
app_info = DataService.retrieve_app_info()
for app in app_info.keys():
calculate_top_5(app, user_download_history.values())
except Exception as e:
print(e)
finally:
#clean up work
if 'client' in locals():
client.close()
def main():
try:
client = MongoClient('localhost',27017)
DataService.init(client)
apps = DataService.retrieve_appinfo()
#work flow
for app in apps.keys():
user_download_history = DataService.retrieve_user_download_history()
top_5_app = calculate_Top_5(app, user_download_history.values())
DataService.update_app_info({"app_id": app},{"$set": {"Top 5": top_5_app}})
except Exception as e:
print(e)
finally:
#clean up work
if 'client' in locals():
client.close()
def main():
try:
#get MongoDB client and set it in DataService
client = MongoClient('localhost', 27017)
DataService.init(client)
#work flow
user_download_history = DataService.retrieve_user_download_history()
#calculate_top_5('C10107104', user_download_history.values())
app_info = DataService.retrieve_app_info()
for app in app_info.keys():
calculate_top_5(app, user_download_history.values())
except Exception, e:
print("Exception detected:")
print(e)
def main():
try:
start = time.clock()
client = MongoClient('localhost', 27017)
DataService.init(client)
user_download_history = DataService.retrieve_user_download_history()
apps = DataService.retrieve_app_info()
for app in apps.keys():
calculate_top_5(app, user_download_history.values())
end = time.clock()
print "time: " + str(end - start)
except Exception as e:
print e
finally:
if 'client' in locals():
client.close()
def main():
try:
# get MongoDB client and set it in DataService
client = MongoClient('localhost', 27017)
DataService.init(client)
# work flow
user_download_history = DataService.retrieve_user_download_history()
app_info = DataService.retrieve_app_info()
for app in app_info.keys():
calculate_top_5(app, user_download_history.values())
except Exception as e:
print e
finally:
# clean up
if 'client' in locals():
client.close()
def main():
try:
client = MongoClient('localhost', 27017)
DataService.init(client)
user_download_history = DataService.retrieve_user_download_history()
all_app_id = DataService.get_all_app_id()
for one_id in all_app_id:
calculate_top_k(one_id, user_download_history.values(), 5)
recommendations = DataService.retrieve_recommended_items()
generate_recommendations(user_download_history, recommendations)
except Exception as e:
print(e)
finally:
if 'client' in locals():
client.close()
def main():
start = time.clock()
try:
client = MongoClient('localhost', 27017)
DataService.init(client)
user_download_history = DataService.retrieve_user_download_history()
app_info = DataService.retrieve_app_info()
for app in app_info.keys():
calculate_top_5(app, user_download_history.values())
except Exception as e:
print("Exception detected:")
print(e)
finally:
if 'client' in locals():
client.close()
end = time.clock()
print "time eplapsed = " + str(end - start)
def main():
try:
client = MongoClient('localhost', 27017)
DataService.init(client)
# work flow
user_download_history = DataService.retrieve_user_download_history()
app_info = DataService.retrieve_app_info()
# print("Calculating Top 5 related apps for apps...")
# start = time.clock()
# for app in app_info.keys():
# # print(app)
# calculate_app_top_5(app, user_download_history.values())
# # calculate_top_5('C10107104', user_download_history.values())
# end = time.clock()
# print "time elapsed = " + str(end - start)
print("Calculating Top 5 recommended apps for users...")
start = time.clock()
for user_id, download_history in user_download_history.iteritems():
# print(app)
calculate_user_top_5(user_id, download_history, user_download_history.values())
# calculate_top_5('C10107104', user_download_history.values())
end = time.clock()
print "time elapsed = " + str(end - start)
except Exception as e:
print(e)
finally:
# clean up work
if 'client' in locals():
client.close()
def main():
try:
start = time.clock()
client = MongoClient('localhost', 27017)
DataService.init(client)
user_download_history = DataService.retrieve_user_download_history()
app_ids = DataService.retrieve_all_app_id()
top_5_apps = {}
for appp in app_ids:
calculate_top_5(appp, user_download_history.values(),top_5_apps)
for users in user_download_history.keys():
users_app = user_download_history[users]
all_possible_app = {}
#sorted_tups = calculate_top_5_user(users, user_download_history,top_5_apps,all_possible_app)
for used_app_id in users_app:
top_5_possible_app = top_5_apps[used_app_id]
for i in top_5_possible_app:
if i in all_possible_app:
all_possible_app[i] = all_possible_app[i] + 1
else:
all_possible_app[i] = 1
sorted_tups = sorted(all_possible_app.items(), key = operator.itemgetter(1), reverse = True)
top_5_user_app = [sorted_tups[0][0], sorted_tups[1][0], sorted_tups[2][0], sorted_tups[3][0],sorted_tups[4][0]]
print("top_5_app " + str(users) + ":\t" + str(top_5_user_app))
end = time.clock()
print "time elapsed = " + str(end - start)
except Exception as e:
print(e)
finally:
if 'client' in locals():
client.close()
def main():
noInput = True # weather user input a right command
processes = []
try:
while noInput:
flag = input("If you want to calculate each app's recommend apps"
+ " please press 1, If you want to calculate"
+ " recommend apps for each user, please press"
+ " 2: ")
if flag == 1:
noInput = False
# start time
start = time.clock()
# set the shared dictionary
rslt = {}
result = multiprocessing.Manager().dict(rslt)
# control the number of apps each process deals with
count = 0
# a list of appID
keys = []
# get client and init it with DataService class
client = MongoClient("localhost", 27017)
DataService.init(client)
# start analyzing
userDownloadHistory = DataService.retrieveUserDownloadHistory()
allApp = DataService.retrieveAppInfo()
length = len(allApp)
for i in range(0, length, 500):
# each process will deal with 500 apps
p = multiprocessing.Process(target = appWrapper,
args = (allApp.keys()[i: min(i + 500, length)],
userDownloadHistory.values(), result))
processes.append(p)
# set process to daemon and start
for p in processes:
p.daemon = True
p.start()
# main process will wait other processes
for p in processes:
p.join()
# update MongoDB
for key in result.keys():
DataService.updateAppInfo({"app_id": key},
{"$set": {"top 5 apps": result[key]}})
elif flag == 2:
noInput = False
# start time
start = time.clock()
# set the shared dictionary
rslt = {}
result = multiprocessing.Manager().dict(rslt)
# control the number of users each process deals with
count = 0
# a list of userID
keys = []
# get client and init it with DataService class
client = MongoClient("localhost", 27017)
DataService.init(client)
# start analyzing
userDownloadHistory = DataService.retrieveUserDownloadHistory()
for key in userDownloadHistory.keys():
keys.append(key)
count += 1
# each process will deal with 500 users
if count == 500:
p = multiprocessing.Process(target = userWrapper,
args = (keys, userDownloadHistory, result))
processes.append(p)
keys = []
count = 0
# the rest users
p = multiprocessing.Process(target = userWrapper,
args = (keys, userDownloadHistory, result))
processes.append(p)
# set process to daemon and start
for p in processes:
p.daemon = True
p.start()
# main process will wait other processes
for p in processes:
p.join()
# update MongoDB
for key in result.keys():
DataService.updateUserInfo({"user_id": key},
{"$set": {"top 5 recommended apps": result[key]}})
else:
print "Sorry, you press the wrong number, please try again."
except Exception as e:
print e
finally:
# close client
if "client" in locals():
client.close()
end = time.clock()
print "Finished! The elapsed time is " + str(end - start)
