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+##############################################################################
+# Copyright (c) 2016 ZTE Corporation
+# feng.xiaowei@zte.com.cn
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+##############################################################################
+import argparse
+
+from pymongo import MongoClient
+
+from changes_in_mongodb import collections_old2New, \
+ fields_old2New, docs_old2New
+from utils import main, parse_mongodb_url
+
+parser = argparse.ArgumentParser(description='Update MongoDBs')
+
+parser.add_argument('-u', '--url',
+ type=str,
+ required=False,
+ default='mongodb://127.0.0.1:27017/',
+ help='Mongo DB URL for Backups')
+
+parser.add_argument('-d', '--db',
+ type=str,
+ required=False,
+ default='test_results_collection',
+ help='database for the update.')
+
+
+def assert_collections(a_dict):
+ if a_dict is not None:
+ collections = eval_db('collection_names')
+ no_collections = []
+ for collection in a_dict.keys():
+ if collection not in collections:
+ no_collections.append(collection)
+ assert len(no_collections) == 0, \
+ 'collections {} not exist'.format(no_collections)
+
+
+def rename_collections(a_dict):
+ if a_dict is not None:
+ for collection, new_name in a_dict.iteritems():
+ eval_collection(collection, 'rename', new_name)
+
+
+def rename_fields(a_dict):
+ collection_update(a_dict, '$rename')
+
+
+def change_docs(a_dict):
+ collection_update(a_dict, '$set')
+
+
+def eval_db(method, *args, **kwargs):
+ exec_db = db.__getattribute__(method)
+ return exec_db(*args, **kwargs)
+
+
+def eval_collection(collection, method, *args, **kwargs):
+ exec_collection = db.__getattr__(collection)
+ return exec_collection.__getattribute__(method)(*args, **kwargs)
+
+
+def collection_update(a_dict, operator):
+ if a_dict is not None:
+ for collection, updates in a_dict.iteritems():
+ for (query, doc) in updates:
+ doc_dict = {operator: doc}
+ eval_collection(collection, 'update', query,
+ doc_dict, upsert=False, multi=True)
+
+
+def update(args):
+ parse_mongodb_url(args.url)
+ client = MongoClient(args.url)
+ global db
+ db = client[args.db]
+ assert_collections(docs_old2New)
+ assert_collections(fields_old2New)
+ assert_collections(collections_old2New)
+ change_docs(docs_old2New)
+ rename_fields(fields_old2New)
+ rename_collections(collections_old2New)
+
+
+if __name__ == '__main__':
+ main(update, parser)