97 lines
3.3 KiB
Python
97 lines
3.3 KiB
Python
# ------------------------------------------------------------------------------
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# Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
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#
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# This software is dual-licensed to you under the Universal Permissive License
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# (UPL) 1.0 as shown at https://oss.oracle.com/licenses/upl and Apache License
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# 2.0 as shown at http://www.apache.org/licenses/LICENSE-2.0. You may choose
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# either license.
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#
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# If you elect to accept the software under the Apache License, Version 2.0,
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# the following applies:
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# ------------------------------------------------------------------------------
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# ------------------------------------------------------------------------------
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# drcp_query.py (Section 2.4 and 2.5)
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# Look at pool statistics of the DRCP Connection
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# ------------------------------------------------------------------------------
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import oracledb
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import getpass
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import os
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# default values
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PYTHON_SYS_USER = "SYSTEM"
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PYTHON_USER = "pythondemo"
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PYTHON_CONNECT_STRING = "localhost/orclpdb"
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PYTHON_DRCP_CONNECT_STRING = "localhost/orclpdb:pooled"
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# dictionary containing all parameters; these are acquired as needed by the
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# methods below (which should be used instead of consulting this dictionary
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# directly) and then stored so that a value is not requested more than once
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PARAMETERS = {}
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def get_value(name, label, default_value=""):
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value = PARAMETERS.get(name)
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if value is not None:
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return value
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value = os.environ.get(name)
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if value is None:
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if default_value:
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label += " [%s]" % default_value
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label += ": "
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if default_value:
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value = input(label).strip()
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else:
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value = getpass.getpass(label)
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if not value:
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value = default_value
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PARAMETERS[name] = value
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return value
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def get_main_user():
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return get_value("user", "Enter the DRCP User", PYTHON_SYS_USER)
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def get_main_password():
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return get_value("pw", "Enter the Password for %s" % get_main_user())
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def get_drcp_connect_string():
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connect_string = get_value("DRCP_CONNECT_STRING", "Enter the DRCP Connect String",
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PYTHON_DRCP_CONNECT_STRING)
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return "%s/%s@%s" % (get_main_user(), get_main_password(), connect_string)
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drcp_user = get_main_user()
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drcp_password = get_main_password()
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drcp_connect_string = get_drcp_connect_string()
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con = oracledb.connect(user=drcp_user,
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password=drcp_password, dsn=drcp_connect_string)
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cur = con.cursor()
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# looking at the pool stats of the DRCP Connection
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print("\nLooking at DRCP Pool statistics...\n")
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cur.execute(
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"select cclass_name, num_requests, num_hits, num_misses from v$cpool_cc_stats")
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res = cur.fetchall()
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print('(CCLASS_NAME, NUM_REQUESTS, NUM_HITS, NUM_MISSES)')
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print('-------------------------------------------------')
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for row in res:
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print(row)
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print("Done.")
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