-
Notifications
You must be signed in to change notification settings - Fork 1
/
Read.py
65 lines (49 loc) · 1.58 KB
/
Read.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
from ASCIIClientProtocol import ASCIIClientFactory
from twisted.web.resource import Resource
from twisted.web.server import NOT_DONE_YET
from twisted.internet import defer
from PLCObjects import PLCObject, PLCTime, merge
from PLCPrimitives import PLCPrimitive
import json
import datetime
import collections
class SysTime(PLCPrimitive):
def __init__(self):
PLCPrimitive.__init__(self, None)
def get(self):
d = defer.Deferred()
d.callback(datetime.datetime.now().isoformat())
return d
class Root(PLCObject):
def __init__(self, plc):
PLCObject.__init__(self, plc)
self.addChild("hof3", plc)
self.addChild("time", SysTime())
def get(self, labels):
deferreds = []
for label in labels:
deferreds.append( self.getChild( label ) )
d = defer.gatherResults(deferreds)
def onResult(data):
result = {}
for d in data:
merge(result, d)
return json.dumps(result)
d.addCallback(onResult)
return d
class Read(Resource):
isLeaf = True
def __init__(self, plc):
self.plc = plc
self.root = Root(plc)
def render_GET(self, request):
request.setHeader("Content-Type","application/json");
objText = request.args["obj"][0]
labels = objText.split(",")
d = self.root.get(labels)
def onResult(data):
request.write( data )
request.finish()
return data
d.addCallback(onResult)
return NOT_DONE_YET