#
# 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 os
import happybase
[docs]class MockHBaseTable(happybase.Table):
def __init__(self, name, connection, data_prefix):
# data_prefix is added to all rows which are written
# in this test. It allows to divide data from different tests
self.data_prefix = data_prefix
# We create happybase Table with prefix from
# CEILOMETER_TEST_HBASE_TABLE_PREFIX
prefix = os.getenv("CEILOMETER_TEST_HBASE_TABLE_PREFIX", 'test')
separator = os.getenv(
"CEILOMETER_TEST_HBASE_TABLE_PREFIX_SEPARATOR", '_')
super(MockHBaseTable, self).__init__(
"%s%s%s" % (prefix, separator, name),
connection)
[docs] def put(self, row, *args, **kwargs):
row = self.data_prefix + row
return super(MockHBaseTable, self).put(row, *args,
**kwargs)
[docs] def scan(self, row_start=None, row_stop=None, row_prefix=None,
columns=None, filter=None, timestamp=None,
include_timestamp=False, batch_size=10, scan_batching=None,
limit=None, sorted_columns=False):
# Add data prefix for row parameters
# row_prefix could not be combined with row_start or row_stop
if not row_start and not row_stop:
row_prefix = self.data_prefix + (row_prefix or "")
row_start = None
row_stop = None
elif row_start and not row_stop:
# Adding data_prefix to row_start and row_stop does not work
# if it looks like row_start = %data_prefix%foo,
# row_stop = %data_prefix, because row_start > row_stop
filter = self._update_filter_row(filter)
row_start = self.data_prefix + row_start
else:
row_start = self.data_prefix + (row_start or "")
row_stop = self.data_prefix + (row_stop or "")
gen = super(MockHBaseTable, self).scan(row_start, row_stop,
row_prefix, columns,
filter, timestamp,
include_timestamp, batch_size,
scan_batching, limit,
sorted_columns)
data_prefix_len = len(self.data_prefix)
# Restore original row format
for row, data in gen:
yield (row[data_prefix_len:], data)
[docs] def row(self, row, *args, **kwargs):
row = self.data_prefix + row
return super(MockHBaseTable, self).row(row, *args, **kwargs)
[docs] def delete(self, row, *args, **kwargs):
row = self.data_prefix + row
return super(MockHBaseTable, self).delete(row, *args, **kwargs)
def _update_filter_row(self, filter):
if filter:
return "PrefixFilter(%s) AND %s" % (self.data_prefix, filter)
else:
return "PrefixFilter(%s)" % self.data_prefix