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# Copyright DataStax, Inc.
#
# 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 copy
from unittest.mock import patch
from cassandra.cqlengine import columns
from cassandra.cqlengine.management import drop_table, sync_table, _get_table_metadata, _update_options
from cassandra.cqlengine.models import Model
from tests.integration.cqlengine.base import BaseCassEngTestCase
class LeveledCompactionTestTable(Model):
__options__ = {'compaction': {'class': 'org.apache.cassandra.db.compaction.LeveledCompactionStrategy',
'sstable_size_in_mb': '64'}}
user_id = columns.UUID(primary_key=True)
name = columns.Text()
class AlterTableTest(BaseCassEngTestCase):
def test_alter_is_called_table(self):
drop_table(LeveledCompactionTestTable)
sync_table(LeveledCompactionTestTable)
with patch('cassandra.cqlengine.management._update_options') as mock:
sync_table(LeveledCompactionTestTable)
assert mock.called == 1
def test_compaction_not_altered_without_changes_leveled(self):
class LeveledCompactionChangesDetectionTest(Model):
__options__ = {'compaction': {'class': 'org.apache.cassandra.db.compaction.LeveledCompactionStrategy',
'sstable_size_in_mb': '160',
'tombstone_threshold': '0.125',
'tombstone_compaction_interval': '3600'}}
pk = columns.Integer(primary_key=True)
drop_table(LeveledCompactionChangesDetectionTest)
sync_table(LeveledCompactionChangesDetectionTest)
self.assertFalse(_update_options(LeveledCompactionChangesDetectionTest))
def test_compaction_not_altered_without_changes_sizetiered(self):
class SizeTieredCompactionChangesDetectionTest(Model):
__options__ = {'compaction': {'class': 'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy',
'bucket_high': '20',
'bucket_low': '10',
'max_threshold': '200',
'min_threshold': '100',
'min_sstable_size': '1000',
'tombstone_threshold': '0.125',
'tombstone_compaction_interval': '3600'}}
pk = columns.Integer(primary_key=True)
drop_table(SizeTieredCompactionChangesDetectionTest)
sync_table(SizeTieredCompactionChangesDetectionTest)
self.assertFalse(_update_options(SizeTieredCompactionChangesDetectionTest))
def test_alter_actually_alters(self):
tmp = copy.deepcopy(LeveledCompactionTestTable)
drop_table(tmp)
sync_table(tmp)
tmp.__options__ = {'compaction': {'class': 'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy'}}
sync_table(tmp)
table_meta = _get_table_metadata(tmp)
self.assertRegex(table_meta.export_as_string(), '.*SizeTieredCompactionStrategy.*')
def test_alter_options(self):
class AlterTable(Model):
__options__ = {'compaction': {'class': 'org.apache.cassandra.db.compaction.LeveledCompactionStrategy',
'sstable_size_in_mb': '64'}}
user_id = columns.UUID(primary_key=True)
name = columns.Text()
drop_table(AlterTable)
sync_table(AlterTable)
table_meta = _get_table_metadata(AlterTable)
self.assertRegex(table_meta.export_as_string(), ".*'sstable_size_in_mb': '64'.*")
AlterTable.__options__['compaction']['sstable_size_in_mb'] = '128'
sync_table(AlterTable)
table_meta = _get_table_metadata(AlterTable)
self.assertRegex(table_meta.export_as_string(), ".*'sstable_size_in_mb': '128'.*")
class OptionsTest(BaseCassEngTestCase):
def _verify_options(self, table_meta, expected_options):
cql = table_meta.export_as_string()
for name, value in expected_options.items():
if isinstance(value, str):
self.assertIn("%s = '%s'" % (name, value), cql)
else:
start = cql.find("%s = {" % (name,))
end = cql.find('}', start)
for subname, subvalue in value.items():
attr = "'%s': '%s'" % (subname, subvalue)
found_at = cql.find(attr, start)
self.assertTrue(found_at > start)
self.assertTrue(found_at < end)
def test_all_size_tiered_options(self):
class AllSizeTieredOptionsModel(Model):
__options__ = {'compaction': {'class': 'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy',
'bucket_low': '.3',
'bucket_high': '2',
'min_threshold': '2',
'max_threshold': '64',
'tombstone_compaction_interval': '86400'}}
cid = columns.UUID(primary_key=True)
name = columns.Text()
drop_table(AllSizeTieredOptionsModel)
sync_table(AllSizeTieredOptionsModel)
table_meta = _get_table_metadata(AllSizeTieredOptionsModel)
self._verify_options(table_meta, AllSizeTieredOptionsModel.__options__)
def test_all_leveled_options(self):
class AllLeveledOptionsModel(Model):
__options__ = {'compaction': {'class': 'org.apache.cassandra.db.compaction.LeveledCompactionStrategy',
'sstable_size_in_mb': '64'}}
cid = columns.UUID(primary_key=True)
name = columns.Text()
drop_table(AllLeveledOptionsModel)
sync_table(AllLeveledOptionsModel)
table_meta = _get_table_metadata(AllLeveledOptionsModel)
self._verify_options(table_meta, AllLeveledOptionsModel.__options__)
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