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UNI-KLU
SMART
Commits
741f1928
Commit
741f1928
authored
Aug 26, 2020
by
Manuel
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traceRetrieval: implemented path resolving
parent
4d9ebc89
Changes
2
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2 changed files
with
144 additions
and
1 deletion
+144
-1
MessageHandler.py
...ce-retrieval-microservice/app/messaging/MessageHandler.py
+62
-1
test_by.py
...-hub-in/trace-retrieval-microservice/app/tests/test_by.py
+82
-0
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src/transaction-hub-in/trace-retrieval-microservice/app/messaging/MessageHandler.py
View file @
741f1928
import
json
from
authentication.token_manager
import
TokenManager
import
network_constants
import
json
import
logging
import
requests
LOGGER
=
logging
.
getLogger
(
__name__
)
class
MessageHandler
:
...
...
@@ -44,9 +48,66 @@ class MessageHandler:
return
result
def
handle_blockchain_transaction
(
self
,
transaction
):
jwt_token
=
TokenManager
.
getInstance
()
.
getToken
()
transaction_data
=
json
.
loads
(
transaction
)
use_case
=
transaction_data
[
"content"
][
"ApplicationType"
]
# query schema information
url
=
f
'https://{network_constants.BUSINESS_LOGIC_HOSTNAME}:{network_constants.BUSINESS_LOGIC_REST_PORT}/api/use-cases/{use_case}/schema'
print
(
f
"CALLING: {url}"
)
response
=
requests
.
get
(
url
,
verify
=
False
,
proxies
=
{
"http"
:
None
,
"https"
:
None
},
headers
=
{
"Authorization"
:
f
"Bearer {jwt_token}"
}
)
print
(
f
"RESPONSE: {response.text}"
)
data
=
json
.
loads
(
response
.
text
)
mappings
=
data
[
"mappings"
]
flattened
=
{}
# iterate over schema mappings and resolve paths
for
mapping
in
mappings
.
keys
():
path_pieces
=
mappings
[
mapping
]
.
split
(
"//"
)
value
=
transaction_data
[
"content"
]
# resolve all pieces of the path in order
for
i
in
range
(
0
,
len
(
path_pieces
)):
piece
=
path_pieces
[
i
]
# is the current path piece in the form attribute[index]?
if
piece
[
-
1
]
==
"]"
:
start
=
piece
.
index
(
"["
)
# stem ... attribute name
# index ... list index
stem
=
piece
[:
start
]
index
=
int
(
piece
[
start
+
1
:
-
1
])
value
=
value
[
stem
][
index
]
else
:
value
=
value
[
piece
]
flattened
[
mapping
]
=
value
print
(
"Flattened: "
+
str
(
flattened
))
# TODO forward [flattened] to next MS
# TODO store the data
# TODO think if inserting makes sense (or just caching while processing if ms goes down)
# self._mongo_repo.insert_trace(transaction)
# TODO convert raw input to prepared data based on key 'ApplicationType'
# inform semantic linking microservice
...
...
src/transaction-hub-in/trace-retrieval-microservice/app/tests/test_by.py
0 → 100644
View file @
741f1928
import
unittest
import
manage_sys_paths
import
json
from
messaging.MessageHandler
import
MessageHandler
class
DummyMongoRepo
:
'''Dummy class to be used for testing the MessageHandler'''
last_trace
=
None
def
insert_trace
(
self
,
trace
):
self
.
last_trace
=
trace
from
messaging.DummyMessageManager
import
DummyMessageManager
as
DummyMessageSender
class
Test_MessageHandler
(
unittest
.
TestCase
):
handler
=
None
repo
=
None
msg_sender
=
None
def
setUp
(
self
):
self
.
repo
=
DummyMongoRepo
()
self
.
msg_sender
=
DummyMessageSender
.
get_instance
()
self
.
handler
=
MessageHandler
(
self
.
repo
,
self
.
msg_sender
)
def
_get_valid_message
(
self
)
->
str
:
message_values
=
\
{
'type'
:
'blockchain-transaction'
,
'content'
:
{
"ApplicationType"
:
"smart-energy"
,
"Customer"
:
13
,
"Postcode"
:
2261
,
"Timestamp"
:
"01.07.2012 00:30"
,
"Solar_Production_kWh"
:
0.0
,
"Energy_Consumption_kWh"
:
0.23399999999999999
,
"Heating_Consumption_kWh"
:
0.23399999999999999
,
"Price_AUD/MWh"
:
57.04
,
"Total_Demand_MWh"
:
8097.93
,
"Latitude"
:
-
33.362679
,
"Longitude"
:
151.447302
,
}
}
return
json
.
dumps
(
message_values
)
def
_get_pizza_message
(
self
)
->
str
:
message_values
=
\
{
'type'
:
'blockchain-transaction'
,
'content'
:
{
"ApplicationType"
:
"debug"
,
"name"
:
"Margherita"
,
"dough"
:
{
"type"
:
"wheat"
,
"cheese"
:
False
,
},
"sauces"
:
[
{
"name"
:
"tomato"
},
{
"name"
:
"caramel"
}
]
}
}
return
json
.
dumps
(
message_values
)
# def test_handleGeneric_correctTraceContent_NotificationSentCorrectly(self):
# msg = self._get_valid_message()
# _ = self.handler.handle_blockchain_transaction(msg)
def
test_HandlePizzaMessage
(
self
):
print
(
"STARTING THE TEST..."
)
msg
=
self
.
_get_pizza_message
()
_
=
self
.
handler
.
handle_blockchain_transaction
(
msg
)
if
__name__
==
'__main__'
:
unittest
.
main
()
\ No newline at end of file
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