python解析oracle日志中的报错

作为python的简单应用，这里将oracle日志文件中的报错内容截取出来。

方案构思：经过分析日志结果，以时间戳为楔子，两个时间戳之间内容作为分块，若果分块内存在报错内容，就将两个时间戳之间的分块内容打印出来。

 1 import re
 2 
 3 def get_time(week,tmp_file):
 4     time = []
 5     for line in tmp_file:
 6         tmp_line = line.split()
 7         lens = len(tmp_line)
 8         #print(lens)
 9         if lens > 3 :
10             if (tmp_line[0] in  week[:]) and (int(tmp_line[2]) in range(1,32)):
11                 time.append(line.strip())
12     return time
13 
14 def get_logs(time,filetxt):
15     i= 0
16     n = i+1
17     while i < len(time)-1 :
18         while time[i] == time[n]:
19             n +=1
20             if n == len(time)-1:
21                 break
22         pattern = re.compile( time[i]+'(.*?)'+time[n],re.S)
23         result = re.findall(pattern,filetxt)
24         seltxt = result[0]
25         if "ORA-" in seltxt or "Errors" in seltxt or "error" in seltxt or "TNS-" in seltxt:
26             print('\n\n===>>报错起始时间:', time[i])
27             print(''.join(result))
28             # print(type(result))
29             print('<<===报错终止始时间:', time[n])
30         i = n
31 
32 def main():
33     logfile = r'D:\WorkHome\python\oracle\alert_irmsdb.log'
34     week = ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
35     file = open(logfile)
36     filelines = file.readlines()
37     tmp_file = filelines[-200:]
38     time = get_time(week,tmp_file)
39     filetxt = "".join(tmp_file).strip()
40     get_logs(time,filetxt)
41 
42 if __name__ == '__main__':
43     main()