/
ddit_mariadb.py
257 lines (235 loc) · 11.4 KB
/
ddit_mariadb.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
import os
import re
import sys
import glob
import env/conf
import mysql.connector as mariadb
import xlsxwriter
from datetime import datetime
try:
conn = mariadb.connect(
user=conf.maria_db_user,
password=conf.maria_db_pwd,
host=conf.maria_db_host,
database=conf.dmaria_b_name,
allow_local_infile='true')
cur = conn.cursor()
for file_path in glob.glob(os.path.join('data/', '*.txt')):
with open(file_path, 'r') as f:
file_abspath = os.path.abspath(file_path)
file_name = os.path.basename(file_path)
table_name = os.path.splitext(file_name)[0]
# open file and read first row
first_row = f.readline()
# populate list with column headers
header_list = first_row.split('\t')
create_column = ''
load_data_col = ''
# create sttm
ws_lnd_header = (['Source', 'DB Name', 'Table Name', 'Column Name',
'Data Type'])
ws_tst_header = (['Source', 'DB Name', 'Table Name', 'Column Name',
'Data Type'])
ws_raw_header = (['Source', 'DB Name', 'Table Name', 'Column Name',
'Data Type'])
ws_lnd_data = []
ws_tst_data = []
ws_raw_data = []
lnd_source = ''
lnd_db_name = 'lnd_db'
lnd_table_name = ''
tst_source = ''
tst_db_name = 'tst_db'
tst_table_name = ''
raw_source = ''
raw_db_name = 'raw_db'
raw_table_name = ''
# loop through column header
for idx, val in enumerate(header_list):
if re.search('_num', val):
ws_lnd_data.append([file_name, lnd_db_name, table_name,
val, ' numeric(13,2)'])
ws_tst_data.append([file_name, lnd_db_name, table_name,
val, ' numeric(13,2)'])
ws_raw_data.append([file_name, raw_db_name, table_name,
val, ' numeric(13,2)'])
elif re.search('_int', val):
ws_lnd_data.append([file_name, lnd_db_name, table_name,
val, ' int'])
ws_tst_data.append([file_name, lnd_db_name, table_name,
val, ' int'])
ws_raw_data.append([file_name, raw_db_name, table_name,
val, ' int'])
elif re.search('_bint', val):
ws_lnd_data.append([file_name, lnd_db_name, table_name,
val, ' bigint'])
ws_tst_data.append([file_name, lnd_db_name, table_name,
val, ' bigint'])
ws_raw_data.append([file_name, raw_db_name, table_name,
val, ' bigint'])
elif re.search('_dt', val):
ws_lnd_data.append([file_name, lnd_db_name, table_name,
val, ' date'])
ws_tst_data.append([file_name, lnd_db_name, table_name,
val, ' date'])
ws_raw_data.append([file_name, raw_db_name, table_name,
val, ' date'])
elif re.search('_ts', val):
ws_lnd_data.append([file_name, lnd_db_name, table_name,
val, ' timestamp'])
ws_tst_data.append([file_name, lnd_db_name, table_name,
val, ' timestamp'])
ws_raw_data.append([file_name, raw_db_name, table_name,
val, ' timestamp'])
elif re.search('_chr', val):
ws_lnd_data.append([file_name, lnd_db_name, table_name,
val, ' chr(1)'])
ws_tst_data.append([file_name, lnd_db_name, table_name,
val, ' chr(1)'])
ws_raw_data.append([file_name, raw_db_name, table_name,
val, ' chr(1)'])
elif re.search('_vc', val):
ws_lnd_data.append([file_name, lnd_db_name, table_name,
val, ' varchar(50)'])
ws_tst_data.append([file_name, lnd_db_name, table_name,
val, ' varchar(50)'])
ws_raw_data.append([file_name, raw_db_name, table_name,
val, ' varchar(50)'])
else:
ws_lnd_data.append([file_name, lnd_db_name, table_name,
val, ' text'])
ws_tst_data.append([file_name, lnd_db_name, table_name,
val, ' text'])
ws_raw_data.append([file_name, raw_db_name, table_name,
val, ' text'])
# create xlsx workbook, worksheets
wb = xlsxwriter.Workbook('sttm/' + table_name + '.xlsx')
ws_lnd = wb.add_worksheet('LND')
ws_tst = wb.add_worksheet('TST')
ws_raw = wb.add_worksheet('RAW')
# create header in lnd
row = 0
col = 0
for i in (ws_lnd_header):
ws_lnd.write(row, col, i)
col += 1
# write lnd data
for row_num, row_data in enumerate(ws_lnd_data):
for col_num, col_data in enumerate(row_data):
ws_lnd.write(row_num + 1, col_num, col_data)
# create header in tst
row = 0
col = 0
for i in (ws_tst_header):
ws_tst.write(row, col, i)
col += 1
# write tst data
for row_num, row_data in enumerate(ws_tst_data):
for col_num, col_data in enumerate(row_data):
ws_tst.write(row_num + 1, col_num, col_data)
# create header in raw
row = 0
col = 0
for i in (ws_raw_header):
ws_raw.write(row, col, i)
col += 1
# write raw data
for row_num, row_data in enumerate(ws_raw_data):
for col_num, col_data in enumerate(row_data):
ws_raw.write(row_num + 1, col_num, col_data)
wb.close()
# populate variables to create sql that will create the table
for idx, val in enumerate(header_list):
if len(load_data_col) == 0:
load_data_col = val
else:
load_data_col = load_data_col + ',' + val
if re.search('_num', val):
# create logic to determine length and decimal places
if len(create_column) == 0:
create_column = val + ' numeric(13,2) null'
else:
create_column = create_column + ', ' + val +\
' numeric(13,2) null'
elif re.search('_int', val):
if len(create_column) == 0:
create_column = val + ' int null'
else:
create_column = create_column + ', ' + val +\
' int null'
elif re.search('_bint', val):
if len(create_column) == 0:
create_column = val + ' bigint null'
else:
create_column = create_column + ', ' + val +\
' bigint null'
elif re.search('_dt', val):
if len(create_column) == 0:
create_column = val + ' date null'
else:
create_column = create_column + ', ' + val +\
' date null'
elif re.search('_ts', val):
if len(create_column) == 0:
create_column = val + ' timestamp null'
else:
create_column = create_column + ', ' + val +\
' timestamp null'
elif re.search('_chr', val):
# create logic for length
if len(create_column) == 0:
create_column = val + ' char(1) null'
else:
create_column = create_column + ', ' + val +\
' char(1) null'
elif re.search('_vc', val):
# create logic to determine length with a max of 255
if len(create_column) == 0:
create_column = val + ' varchar(50) null'
else:
create_column = create_column + ', ' + val +\
' varchar(50) null'
else:
if len(create_column) == 0:
create_column = val + ' text null'
else:
create_column = create_column + ', ' + val +\
' text null'
# compile table sql
create_sql = 'create table if not exists ' + table_name +\
' (' + create_column + ');'
cur.execute(create_sql)
# conn.commit()
# ingest file to table
f.seek(0, 0)
next(f)
load_data = "LOAD DATA LOCAL INFILE '" + file_abspath +\
"' INTO TABLE " + table_name +\
" FIELDS TERMINATED BY '\t' LINES TERMINATED BY '\n'\
IGNORE 1 LINES"
cur.execute(load_data)
conn.commit()
except mariadb.Error as e:
dt = datetime.now().strftime('%Y%m%d %H:%M:%S.%f | ')
f_path = os.path.expanduser('~/.logs/python-dynamic-data-ingestion.log')
app_name = os.path.basename(__file__)
with open(f_path, 'a') as f:
f.write(dt + app_name + ' | ' + 'MariaDB Error: ' + e + '\n')
print('MariaDB Error: ' + e)
sys.exit(1)
except Exception as e:
dt = datetime.now().strftime('%Y%m%d %H:%M:%S.%f | ')
f_path = os.path.expanduser('~/.logs/python-dynamic-data-ingestion.log')
app_name = os.path.basename(__file__)
with open(f_path, 'a') as f:
f.write(dt + app_name + ' | ' + 'Exception Error: ' + e + '\n')
print('Exception Error: ' + e)
sys.exit(1)
else:
dt = datetime.now().strftime('%Y%m%d %H:%M:%S.%f | ')
f_path = os.path.expanduser('~/.logs/python-dynamic-data-ingestion.log')
app_name = os.path.basename(__file__)
with open(f_path, 'a') as f:
f.write(dt + app_name + ' | ' + 'Successfully Executed...\n')
print('Successfully Executed...')
sys.exit(0)