kloudbuster/pns_mongo.py
Yichen Wang 09baadba2c Initial release of VMTP to stackforge
Change-Id: I30eb092d9a70dc6b3642a84887bb4604b1a3ea54
2015-02-09 14:14:00 -08:00

143 lines
3.9 KiB
Python
Executable File

#!/usr/bin/env python
# Copyright 2014 Cisco Systems, Inc. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
import pymongo
def connect_to_mongod(mongod_ip, mongod_port):
'''
Create a connection to the mongo deamon.
'''
if mongod_ip is None:
mongod_ip = "localhost"
if mongod_port is None:
mongod_port = 27017
client = None
try:
client = pymongo.MongoClient(mongod_ip, mongod_port)
except pymongo.errors.ConnectionFailure:
print "ERROR: pymongo. Connection Failure (%s) (%d)" % \
(mongod_ip, mongod_port)
return None
return client
def get_mongod_collection(db_client, database_name, collection_name):
'''
Given db name and collection name, get the collection object.
'''
mongo_db = db_client[database_name]
if mongo_db is None:
print "Invalid database name"
return None
collection = mongo_db[collection_name]
if collection is None:
return None
return collection
def is_type_dict(var):
if isinstance(var, dict):
return True
return False
def add_new_document_to_collection(collection, document):
if collection is None:
print "collection cannot be none"
return None
if not is_type_dict(document):
print "Document type should be a dictionary"
return None
post_id = collection.insert(document)
return post_id
def search_documents_in_collection(collection, pattern):
if collection is None:
print "collection cannot be None"
return None
if pattern is None:
pattern = {}
if not is_type_dict(pattern):
print "pattern type should be a dictionary"
return None
try:
output = collection.find(pattern)
except TypeError:
print "A TypeError occured. Invalid pattern: ", pattern
return None
return output
def pns_add_test_result_to_mongod(mongod_ip,
mongod_port, pns_database,
pns_collection, document):
'''
Invoked from vmtp to add a new result to the mongod database.
'''
client = connect_to_mongod(mongod_ip, mongod_port)
if client is None:
print "ERROR: Failed to connect to mongod (%s) (%d)" % \
(mongod_ip, mongod_port)
return None
collection = get_mongod_collection(client, pns_database, pns_collection)
if collection is None:
print "ERROR: Failed to get collection DB: %s, %s" % \
(pns_database, pns_collection)
return None
post_id = add_new_document_to_collection(collection, document)
return post_id
def pns_search_results_from_mongod(mongod_ip, mongod_port,
pns_database, pns_collection,
pattern):
'''
Can be invoked from a helper script to query the mongod database
'''
client = connect_to_mongod(mongod_ip, mongod_port)
if client is None:
print "ERROR: Failed to connect to mongod (%s) (%d)" % \
(mongod_ip, mongod_port)
return
collection = get_mongod_collection(client, pns_database, pns_collection)
if collection is None:
print "ERROR: Failed to get collection DB: %s, %s" % \
(pns_database, pns_collection)
return
docs = search_documents_in_collection(collection, pattern)
return docs