openstack/aodh
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acb0c28cd2
aodh/tests/storage/test_impl_hbase.py
Stas Maksimov 6f7525755f HBase storage driver, initial version. 
This is a new storage driver that supports storing of Ceilometer
data in an HBase backend. This version does not have metaquery
support yet.

Implements: blueprint hbase-storage-backend
Change-Id: Id3e7ec01434b1be30cce4f91b39461fc389a000f
2013-03-05 10:10:35 +00:00

292 lines
8.6 KiB
Python
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# -*- encoding: utf-8 -*-
#
# Copyright © 2012, 2013 Dell Inc.
#
# Author: Stas Maksimov <Stanislav_M@dell.com>
# Author: Shengjie Min <Shengjie_Min@dell.com>
#
# 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.
"""Tests for ceilometer/storage/impl_hbase.py
.. note::
To run the tests using in-memory mocked HappyBase API,
set the environment variable CEILOMETER_TEST_LIVE=0 (this is the default
value)
In order to run the tests against real HBase server set the environment
variable CEILOMETER_TEST_LIVE=1 and set HBASE_URL below to
point to that HBase instance before running the tests. Make sure the Thrift
server is running on that server.
"""
from time import sleep
import logging
import os
import copy
import re
from oslo.config import cfg
from tests.storage import base
from ceilometer.storage import impl_hbase
from ceilometer.storage.impl_hbase import _load_hbase_list
LOG = logging.getLogger(__name__)
CEILOMETER_TEST_LIVE = bool(int(os.environ.get('CEILOMETER_TEST_LIVE', 0)))
# Export this variable before running tests against real HBase
# e.g. export CEILOMETER_TEST_HBASE_URL = hbase://192.168.1.100:9090
CEILOMETER_TEST_HBASE_URL = os.environ.get('CEILOMETER_TEST_HBASE_URL')
if CEILOMETER_TEST_LIVE:
if not CEILOMETER_TEST_HBASE_URL:
raise RuntimeError("CEILOMETER_TEST_LIVE is on, but "
"CEILOMETER_TEST_HBASE_URL is not defined")
PROJECT_TABLE = "project"
USER_TABLE = "user"
RESOURCE_TABLE = "resource"
METER_TABLE = "meter"
TABLES = [PROJECT_TABLE, USER_TABLE, RESOURCE_TABLE, METER_TABLE]
class TestConnection(impl_hbase.Connection):
def __init__(self, conf):
if CEILOMETER_TEST_LIVE:
super(TestConnection, self).__init__(conf)
else:
self.conn = MConnection()
self.project = self.conn.table('project')
self.user = self.conn.table('user')
self.resource = self.conn.table('resource')
self.meter = self.conn.table('meter')
def create_schema(self):
LOG.debug('Creating HBase schema...')
self.conn.create_table(PROJECT_TABLE, {'f': dict()})
self.conn.create_table(USER_TABLE, {'f': dict()})
self.conn.create_table(RESOURCE_TABLE, {'f': dict()})
self.conn.create_table(METER_TABLE, {'f': dict()})
# Real HBase needs some time to propagate create_table changes
if CEILOMETER_TEST_LIVE:
sleep(10)
def drop_schema(self):
LOG.debug('Dropping HBase schema...')
for table in TABLES:
try:
self.conn.disable_table(table)
except:
None
try:
self.conn.delete_table(table)
except:
None
# Real HBase needs some time to propagate delete_table changes
if CEILOMETER_TEST_LIVE:
sleep(10)
class HBaseEngine(base.DBEngineBase):
def get_connection(self):
self.conf = cfg.CONF
self.conf.database_connection = CEILOMETER_TEST_HBASE_URL
# use prefix so we don't affect any existing tables
self.conf.table_prefix = 't'
self.conn = TestConnection(self.conf)
self.conn.drop_schema()
self.conn.create_schema()
self.conn.upgrade()
return self.conn
def clean_up(self):
pass
def get_sources_by_project_id(self, id):
project = self.conn.project.row(id)
return _load_hbase_list(project, 's')
def get_sources_by_user_id(self, id):
user = self.conn.user.row(id)
return _load_hbase_list(user, 's')
class HBaseEngineTestBase(base.DBTestBase):
def get_engine(cls):
return HBaseEngine()
class UserTest(base.UserTest, HBaseEngineTestBase):
pass
class ProjectTest(base.ProjectTest, HBaseEngineTestBase):
pass
class ResourceTest(base.ResourceTest, HBaseEngineTestBase):
pass
class MeterTest(base.MeterTest, HBaseEngineTestBase):
pass
class RawEventTest(base.RawEventTest, HBaseEngineTestBase):
pass
class TestGetEventInterval(base.TestGetEventInterval,
HBaseEngineTestBase):
pass
class SumTest(base.SumTest, HBaseEngineTestBase):
pass
class MaxProjectTest(base.MaxProjectTest, HBaseEngineTestBase):
pass
class MaxResourceTest(base.MaxResourceTest, HBaseEngineTestBase):
pass
class StatisticsTest(base.StatisticsTest, HBaseEngineTestBase):
pass
###############
# This is a very crude version of "in-memory HBase", which implements just
# enough functionality of HappyBase API to support testing of our driver.
#
class MTable():
"""HappyBase.Table mock
"""
def __init__(self, name, families):
self.name = name
self.families = families
self.rows = {}
def row(self, key):
return self.rows[key] if key in self.rows else {}
def put(self, key, data):
self.rows[key] = data
def scan(self, filter=None, columns=[], row_start=None, row_stop=None):
sorted_keys = sorted(self.rows)
# copy data into a sorted dict
rows = {}
for row in sorted_keys:
if row_start:
if row < row_start:
continue
if row_stop:
if row > row_stop:
break
rows[row] = copy.copy(self.rows[row])
if columns:
ret = {}
for row in rows.keys():
data = rows[row]
for key in data:
# if all(key in columns for key in data):
if key in columns:
ret[row] = data
rows = ret
elif filter:
# TODO: we should really parse this properly, but at the moment we
# are only going to support AND here
filters = filter.split('AND')
for f in filters:
# Extract filter name and its arguments
g = re.search("(.*)\((.*),?\)", f)
fname = g.group(1).strip()
fargs = [s.strip().replace('\'', '').replace('\"', '')
for s in g.group(2).split(',')]
m = getattr(self, fname)
if callable(m):
# overwrite rows for filtering to take effect
# in case of multiple filters
rows = m(fargs, rows)
else:
raise NotImplementedError("%s filter is not implemented, "
"you may want to add it!")
for k in sorted(rows):
yield k, rows[k]
def SingleColumnValueFilter(self, args, rows):
"""This method is called from scan() when 'SingleColumnValueFilter'
is found in the 'filter' argument
"""
op = args[2]
column = "%s:%s" % (args[0], args[1])
value = args[3]
if value.startswith('binary:'):
value = value[7:]
r = {}
for row in rows:
data = rows[row]
if op == '=':
if column in data and data[column] == value:
r[row] = data
elif op == '<=':
if column in data and data[column] <= value:
r[row] = data
elif op == '>=':
if column in data and data[column] >= value:
r[row] = data
else:
raise NotImplementedError("In-memory "
"SingleColumnValueFilter "
"doesn't support the %s operation "
"yet" % op)
return r
class MConnection():
"""HappyBase.Connection mock
"""
def __init__(self):
self.tables = {}
def open(self):
LOG.debug("Opening in-memory HBase connection")
return
def create_table(self, n, families={}):
if n in self.tables:
return self.tables[n]
t = MTable(n, families)
self.tables[n] = t
return t
def delete_table(self, name, use_prefix=True):
self.tables.remove(self.tables[name])
def table(self, name):
return self.create_table(name)
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