요구 : 디렉토리내 모든 snmp dump 파일을 읽어서 oid 별로 정렬하여 하나의 파일로 생성
import datetime
import os
class Data:
oid = ''
line = ''
def snmp_oid_compare(in_name1, len1, in_name2, len2):
name1 = in_name1
name2 = in_name2
# len = minimum of len1 and len2
len_val = min(len1, len2)
# find first non-matching OID
for _ in range(len_val):
if name1[0] != name2[0]:
return -1 if name1[0] < name2[0] else 1
name1 = name1[1:]
name2 = name2[1:]
# both OIDs equal up to length of shorter OID
if len1 < len2:
return -1
elif len2 < len1:
return 1
else:
return 0
dir_dump = "./dumps"
def main():
my_list = []
if not os.path.isdir(dir_dump):
print("\n dir [./dumps] not found. exit.")
exit(0)
filelist = os.listdir(dir_dump)
for li in filelist:
fullpath = dir_dump + "/" + li
f = open(fullpath, 'r')
lines = f.readlines()
i = 0
for line in lines:
i += 1
if 'No Such Object' in line or line[0] != '.':
print("[skip] not start dot(.) or failed oid: {}".format(line))
continue
tokens = line.split("=")
data = Data()
data.oid = tokens[0].rstrip()
data.line = line
new_oid = list(map(int, filter(None, data.oid.split("."))))
found = False
for j, item in enumerate(my_list):
stored_oid = list(map(int, filter(None, item.oid.split("."))))
result = snmp_oid_compare( stored_oid, len(stored_oid), new_oid, len(new_oid))
if result >= 0:
my_list.insert(j, data)
found = True
print("정렬 line:%s,idx:%s,new:%s,old:%s" % (i, j, data.oid, item.oid))
break
if not found:
my_list.append(data)
f.close()
print("\n")
i = 0
file_path = "output.txt"
with open(file_path, "w") as file:
for item in my_list:
i += 1
file.write(f"{item.line}")
print('Total process lines : {}'.format(i))
if __name__ == "__main__":
start_time = datetime.datetime.now()
main()
end_time = datetime.datetime.now()
print('Duration: {}'.format(end_time - start_time))
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