From 6d91a555c368574ebf17f18536cc52108dff73c2 Mon Sep 17 00:00:00 2001
From: martin <maschu09@gmail.com>
Date: Thu, 19 Dec 2019 18:15:00 +0100
Subject: [PATCH] First version of synop.py
---
synop.py | 71 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 71 insertions(+)
create mode 100644 synop.py
diff --git a/synop.py b/synop.py
new file mode 100644
index 0000000..4897144
--- /dev/null
+++ b/synop.py
@@ -0,0 +1,71 @@
+"""SynopReader class
+
+reads a nested JSON structure and flattens it for easier access"""
+
+import json
+from collections import OrderedDict
+
+class SynopReader():
+
+ def __init__(self, filename):
+ """
+ initializes object with filename and reads the JSON file
+ """
+ # ToDo: interpret URL as alternative to filename and access JSON from URL if filename startswith http
+ with open(filename, 'r') as f:
+ content = f.read()
+ self.filename = filename
+ self.content = json.loads(content)
+ ## print(self.content)
+
+ @staticmethod
+ def condense(d, keys=None):
+ """
+ converts a "DWD dct" with key, value, units tags into dict entry key: (value, units)
+ :param d: the input dictionary
+ :param keys: existing key values (to avoid overwriting)
+ :return: dict with {key: (value, units)}
+ """
+ print(d)
+ key = d.get('key', 'undefined_key')
+ value = d.get('value')
+ units = d.get('units')
+ # ToDo: improve this logic to make result more readable
+ if keys is not None and key in keys:
+ suffix = '123456789abcdefghijklmnopqrstuvwxyz'
+ key_c = [key+'_'+x for x in suffix]
+ for k in key_c:
+ if not k in keys:
+ key = key_c
+ break
+ return {key: (value, units)}
+
+ def process_one(self, element):
+ """
+ browse through one part of the JSON structure and condense all information
+ :return: condensed dict
+ """
+ res = OrderedDict()
+ # check if current element is list
+ if isinstance(element, list):
+ for item in element:
+ res.update(self.process_one(item))
+ return res
+ # ToDo: implement solution for list
+ # assume current element is dict
+ return self.condense(element, res.keys())
+
+ def process(self):
+ """
+ browse through the entire JSON structure and condense all information
+ :return: condensed dict
+ """
+ res = self.process_one(self.content)
+ print(res)
+
+
+
+
+if __name__ == "__main__":
+ TESTDATA = "testdata/snippet_synop_dwd_opendata.json"
+ SynopReader(TESTDATA).process()
\ No newline at end of file
--
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