1 files changed, 90 insertions, 0 deletions
diff --git a/update/templates/update_mongodb.py b/update/templates/update_mongodb.py
new file mode 100644
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+++ b/update/templates/update_mongodb.py
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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)