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#------------------------------------------------------------------------------
# Copyright (c) 2020, 2022, Oracle and/or its affiliates.
#
# This software is dual-licensed to you under the Universal Permissive License
# (UPL) 1.0 as shown at https://oss.oracle.com/licenses/upl and Apache License
# 2.0 as shown at http://www.apache.org/licenses/LICENSE-2.0. You may choose
# either license.
#
# If you elect to accept the software under the Apache License, Version 2.0,
# the following applies:
#
# 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
#
# https://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.
#------------------------------------------------------------------------------
"""
3000 - Module for testing subscriptions
"""
import threading
import unittest
import oracledb
import test_env
class SubscriptionData:
def __init__(self, num_messages_expected):
self.condition = threading.Condition()
self.num_messages_expected = num_messages_expected
self.num_messages_received = 0
def _process_message(self, message):
pass
def callback_handler(self, message):
if message.type != oracledb.EVENT_DEREG:
self._process_message(message)
self.num_messages_received += 1
if message.type == oracledb.EVENT_DEREG or \
self.num_messages_received == self.num_messages_expected:
with self.condition:
self.condition.notify()
def wait_for_messages(self):
if self.num_messages_received < self.num_messages_expected:
with self.condition:
self.condition.wait(10)
class AQSubscriptionData(SubscriptionData):
pass
class DMLSubscriptionData(SubscriptionData):
def __init__(self, num_messages_expected):
super().__init__(num_messages_expected)
self.table_operations = []
self.row_operations = []
self.rowids = []
def _process_message(self, message):
table, = message.tables
self.table_operations.append(table.operation)
for row in table.rows:
self.row_operations.append(row.operation)
self.rowids.append(row.rowid)
@unittest.skipIf(test_env.get_is_thin(),
"thin mode doesn't support subscriptions")
class TestCase(test_env.BaseTestCase):
@unittest.skip("FIXME: threaded mode fails on close of connection?")
def test_3000_dml_subscription(self):
"3000 - test subscription for insert, update, delete and truncate"
# skip if running on the Oracle Cloud, which does not support
# subscriptions currently
if self.is_on_oracle_cloud():
message = "Oracle Cloud does not support subscriptions currently"
self.skipTest(message)
# truncate table in order to run test in known state
self.cursor.execute("truncate table TestTempTable")
# expected values
table_operations = [
oracledb.OPCODE_INSERT,
oracledb.OPCODE_UPDATE,
oracledb.OPCODE_INSERT,
oracledb.OPCODE_DELETE,
oracledb.OPCODE_ALTER | oracledb.OPCODE_ALLROWS
]
row_operations = [
oracledb.OPCODE_INSERT,
oracledb.OPCODE_UPDATE,
oracledb.OPCODE_INSERT,
oracledb.OPCODE_DELETE
]
rowids = []
# set up subscription
data = DMLSubscriptionData(5)
connection = test_env.get_connection(events=True)
sub = connection.subscribe(callback=data.callback_handler,
timeout=10, qos=oracledb.SUBSCR_QOS_ROWIDS)
sub.registerquery("select * from TestTempTable")
connection.autocommit = True
cursor = connection.cursor()
# insert statement
cursor.execute("""
insert into TestTempTable (IntCol, StringCol1)
values (1, 'test')""")
cursor.execute("select rowid from TestTempTable where IntCol = 1")
rowids.extend(r for r, in cursor)
# update statement
cursor.execute("""
update TestTempTable set
StringCol1 = 'update'
where IntCol = 1""")
cursor.execute("select rowid from TestTempTable where IntCol = 1")
rowids.extend(r for r, in cursor)
# second insert statement
cursor.execute("""
insert into TestTempTable (IntCol, StringCol1)
values (2, 'test2')""")
cursor.execute("select rowid from TestTempTable where IntCol = 2")
rowids.extend(r for r, in cursor)
# delete statement
cursor.execute("delete TestTempTable where IntCol = 2")
rowids.append(rowids[-1])
# truncate table
cursor.execute("truncate table TestTempTable")
# wait for all messages to be sent
data.wait_for_messages()
# verify the correct messages were sent
self.assertEqual(data.table_operations, table_operations)
self.assertEqual(data.row_operations, row_operations)
self.assertEqual(data.rowids, rowids)
# test string format of subscription object is as expected
fmt = "<oracledb.Subscription on <oracledb.Connection to %s@%s>>"
expected = fmt % \
(test_env.get_main_user(), test_env.get_connect_string())
self.assertEqual(str(sub), expected)
def test_3001_deprecations(self):
"3001 - test to verify deprecations"
self.assertRaisesRegex(oracledb.ProgrammingError, "^DPY-2014:",
self.connection.subscribe,
ip_address='www.oracle.in',
ipAddress='www.oracle.in')
self.assertRaisesRegex(oracledb.ProgrammingError, "^DPY-2014:",
self.connection.subscribe, grouping_class=1,
groupingClass=1)
self.assertRaisesRegex(oracledb.ProgrammingError, "^DPY-2014:",
self.connection.subscribe, grouping_value=3,
groupingValue=3)
self.assertRaisesRegex(oracledb.ProgrammingError, "^DPY-2014:",
self.connection.subscribe, grouping_type=2,
groupingType=2)
self.assertRaisesRegex(oracledb.ProgrammingError, "^DPY-2014:",
self.connection.subscribe,
client_initiated=True, clientInitiated=True)
@unittest.skip("multiple subscriptions cannot be created simultaneously")
def test_3002_aq_subscription(self):
"3002 - test subscription for AQ"
# create queue and clear it of all messages
queue = self.connection.queue("TEST_RAW_QUEUE")
queue.deqoptions.wait = oracledb.DEQ_NO_WAIT
while queue.deqone():
pass
self.connection.commit()
# set up subscription
data = AQSubscriptionData(1)
connection = test_env.get_connection(events=True)
sub = connection.subscribe(namespace=oracledb.SUBSCR_NAMESPACE_AQ,
name=queue.name, timeout=10,
callback=data.callback_handler)
# enqueue a message
queue.enqone(self.connection.msgproperties(payload="Some data"))
self.connection.commit()
# wait for all messages to be sent
data.wait_for_messages()
if __name__ == "__main__":
test_env.run_test_cases()
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