This repository has been archived by the owner on Mar 15, 2021. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 19
/
json_meta.py
58 lines (45 loc) · 1.72 KB
/
json_meta.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
''' JSON Meta worker '''
import json
import pprint
class JSONMetaData(object):
''' This worker computes meta-data for json files. '''
dependencies = ['sample', 'meta']
def __init__(self):
''' Initialization '''
self.meta = {}
def execute(self, input_data):
raw_bytes = input_data['sample']['raw_bytes']
# Take a peek at the JSON data
data = json.loads(raw_bytes)
self.meta['container'] = 'list' if isinstance(data, list) else 'dict'
if self.meta['container'] == 'list':
self.meta['list_length'] = len(data)
else:
self.meta['num_keys'] = len(data.keys())
# Pull in meta data info as well
self.meta.update(input_data['meta'])
return self.meta
# Unit test: Create the class, the proper input and run the execute() method for a test
def test():
''' json_meta.py: Test '''
# This worker test requires a local server running
import zerorpc
workbench = zerorpc.Client()
workbench.connect("tcp://127.0.0.1:4242")
# Generate input for the worker
import os
data_path = os.path.join(os.path.dirname(os.path.realpath(__file__)),'../data/json/generated.json')
md5 = workbench.store_sample('unknown.json', open(data_path, 'rb').read(), 'json')
input_data = workbench.get_sample(md5)
input_data.update(workbench.work_request('meta', md5))
# Execute the worker (unit test)
worker = JSONMetaData()
output = worker.execute(input_data)
print '\n<<< Unit Test >>>'
pprint.pprint(output)
# Execute the worker (server test)
output = workbench.work_request('json_meta', md5)
print '\n<<< Server Test >>>'
pprint.pprint(output)
if __name__ == "__main__":
test()