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###############################################################################
# Copyright (c) 2017 Koren Lev (Cisco Systems), Yaron Yogev (Cisco Systems) #
# and others #
# #
# 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 #
###############################################################################
from api.responders.responder_base import ResponderBase
from api.validation.data_validate import DataValidate
class Aggregates(ResponderBase):
def __init__(self):
super().__init__()
self.AGGREGATE_TYPES = ["environment", "message", "constant"]
self.AGGREGATES_MAP = {
"environment": self.get_environments_aggregates,
"message": self.get_messages_aggregates,
"constant": self.get_constants_aggregates
}
def on_get(self, req, resp):
self.log.debug("Getting aggregates information")
filters = self.parse_query_params(req)
filters_requirements = {
"env_name": self.require(str),
"type": self.require(str, validate=DataValidate.LIST,
requirement=self.AGGREGATE_TYPES,
mandatory=True,
error_messages={"mandatory":
"type must be specified: " +
"environment/" +
" message/" +
"constant"})
}
self.validate_query_data(filters, filters_requirements)
query = self.build_query(filters)
query_type = query["type"]
if query_type == "environment":
env_name = query.get("env_name")
if not env_name:
self.bad_request("env_name must be specified")
if not self.check_environment_name(env_name):
self.bad_request("unknown environment: " + env_name)
aggregates = self.AGGREGATES_MAP[query_type](query)
self.set_successful_response(resp, aggregates)
def build_query(self, filters):
query = {}
env_name = filters.get("env_name")
query_type = filters["type"]
query["type"] = filters["type"]
if query_type == "environment":
if env_name:
query['env_name'] = env_name
return query
return query
def get_environments_aggregates(self, query):
env_name = query['env_name']
aggregates = {
"type": query["type"],
"env_name": env_name,
"aggregates": {
"object_types": {
}
}
}
pipeline = [
{
'$match': {
'environment': env_name
}
},
{
'$group': {
'_id': '$type',
'total': {
'$sum': 1
}
}
}
]
groups = self.aggregate(pipeline, "inventory")
for group in groups:
aggregates['aggregates']['object_types'][group['_id']] = \
group['total']
return aggregates
def get_messages_aggregates(self, query):
aggregates = {
"type": query['type'],
"aggregates": {
"levels": {},
"environments": {}
}
}
env_pipeline = [
{
'$group': {
'_id': '$environment',
'total': {
'$sum': 1
}
}
}
]
environments = self.aggregate(env_pipeline, "messages")
for environment in environments:
aggregates['aggregates']['environments'][environment['_id']] = \
environment['total']
level_pipeline = [
{
'$group': {
'_id': '$level',
'total': {
'$sum': 1
}
}
}
]
levels = self.aggregate(level_pipeline, "messages")
for level in levels:
aggregates['aggregates']['levels'][level['_id']] = \
level['total']
return aggregates
def get_constants_aggregates(self, query):
aggregates = {
"type": query['type'],
"aggregates": {
"names": {}
}
}
pipeline = [
{
'$project': {
'_id': 0,
'name': 1,
'total': {
'$size': '$data'
}
}
}
]
constants = self.aggregate(pipeline, "constants")
for constant in constants:
aggregates['aggregates']['names'][constant['name']] = \
constant['total']
return aggregates
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