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# ================================================================================================================================================================================
# PPM PRODUCT CATALOG (PC) REPLICATION - CE CUSTOM TABLES REPLICATE
# DATE AUTHOR VER CHANGE DESCRIPTION
# -------- --------- ----- ------------------
# 21.08.23 Veera 1.0 The below script replicates ppm table records dynamically from "etl_ppm_replication_master" "PC_EXT"
#
#
# ================================================================================================================================================================================
import json
import logging
import mysql.connector
import pandas as pd
import os
import sys
from base64 import b64decode as base_b64decode
from pandas import read_sql as pd_read_sql
from sqlalchemy import create_engine
from io import TextIOBase as io_TextIOBase
from json import load as json_load
# define Python user-defined exceptions
class Error(Exception):
"""Base class for other exceptions"""
pass
# define Python user-defined exceptions
class ETL_PPM_REPLICATION_MASTER_ERROR(Error):
pass
class DB_CONNECTION_ERROR(Error):
pass
# Function to write SQL query to the log file
def write_sql(sql_log_file, query_info):
sql_log_file.write(query_info)
sql_log_file.write('\n')
source = 'SOURCE'
# Function to establish a database connection
def setDbConnection(logging, json_data, serverInfo):
from sqlalchemy import create_engine
from base64 import b64decode as base_b64decode
try:
cnx = cursor = schema = db_type = None
encrypt = json_data.get(serverInfo, {}).get('ENCRYPT')
host = json_data.get(serverInfo, {}).get('DB_HOST')
port = json_data.get(serverInfo, {}).get('DB_PORT')
user = json_data.get(serverInfo, {}).get('DB_USER')
db_type = json_data.get(serverInfo, {}).get('DB_TYPE')
schema = json_data.get(serverInfo, {}).get('DB_SCHEMA')
if encrypt == 'Y':
password = base_b64decode(json_data.get(serverInfo, {}).get('DB_PASSWORD')).decode('utf-8')
else:
password = json_data.get(serverInfo, {}).get('DB_PASSWORD')
if db_type in ('MYSQL', 'MARIA'):
import mysql.connector
cnx = mysql.connector.connect(user=user, password=password, host=host, port=port, database=schema)
cursor = cnx.cursor()
elif db_type == 'ORACLE':
import oracledb
oracle_mode = oracledb.is_thin_mode()
if oracle_mode:
oracledb.init_oracle_client()
print("Enabled python-oracledb Thick mode")
cnx_text = ('oracle://%s:%s@%s:%s/?service_name=%s' % (user, password, host, port, schema))
cnx = create_engine(cnx_text, encoding="utf8").raw_connection()
cursor = cnx.cursor
logging.info(f"Connected to database server {serverInfo}: {host}:{port}/{schema}")
except mysql.connector.Error as dberr:
logging.error("DATABASE CONNECTION ERROR")
logging.error("Error - {} . Line No - {} ".format(str(dberr), str(sys.exc_info()[-1].tb_lineno)))
cnx = cursor = schema = None
except Exception as dbexp:
logging.error("DATABASE CONNECTION EXCEPTION")
logging.error("Error - {} . Line No - {} ".format(str(dberr), str(sys.exc_info()[-1].tb_lineno)))
cnx = cursor = schema = None
return cnx, cursor, schema, db_type
def main(args, sql_log_file, logging, json_data):
# Connect to PPM_PC database
conn_ppm, cursor_ppm, schema_ppm, user_ppm, password_ppm, host_ppm, port_ppm = setDbConnection(logging,json_data,
'PPM_PC')
# Connect to source database
conn_source, cursor_source, schema_source, _, _, _, _ = setDbConnection(logging,json_data, source)
# Fetch data from the etl_ppm_replication_master table
primary_query = f"SELECT * FROM {schema_ppm}.etl_ppm_replication_master WHERE eprm_catalog='PC_EXT' AND eprm_enabled_flg='Y'"
df = pd_read_sql(primary_query, con=conn_ppm)
# Connect to target database
replicationTarget_EXT = replicationTarget + '_EXT'
db_type = json_data.get(replicationTarget_EXT, {}).get('DB_TYPE')
if db_type == 'MYSQL':
_, _, schema_target, user_target, password_target, host_target, port_target = setDbConnection(logging,json_data,
replicationTarget_EXT)
target_engine = create_engine(
f"mysql+mysqlconnector://{user_target}:{password_target}@{host_target}:{port_target}/{schema_target}")
else:
_, _, schema_target, user_target, password_target, host_target, port_target = setDbConnection(json_data,
replicationTarget_EXT)
oracle_dsn = f"(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST={host_target})(PORT={port_target})))(CONNECT_DATA=(SERVICE_NAME={schema_target})(SID={sid})))" # Add SID here
dsn_kwargs = {
'user': user_target,
'password': password_target,
'dsn': oracle_dsn,
'encoding': 'UTF-8',
}
try:
import cx_Oracle
target_connection = cx_Oracle.connect(**dsn_kwargs)
target_cursor = target_connection.cursor()
except ImportError:
logging.error("cx_Oracle library not found. Make sure it's installed to establish Oracle connections.")
raise
except cx_Oracle.DatabaseError as ex:
logging.error(f"Error while connecting to Oracle database: {ex}")
raise
for _, row in df.iterrows():
eprm_table_name = row['eprm_table_name'].lower() # Convert table name to lowercase
if eprm_table_name != 'pkg_prd_fed_ext_attrs':
source_query = f"SELECT * FROM {schema_source}.{eprm_table_name} WHERE release_id='{releaseId}' AND op_id='{opId}' AND bu_id='{buId}'"
try:
source_df = pd_read_sql(source_query, con=conn_source)
if 'updated_by' in source_df:
source_df['updated_by'] = replicationJobId
if not source_df.empty:
source_df.to_sql(eprm_table_name, con=target_engine, if_exists='append', index=False)
write_sql(
f"-- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ STATUS|{replicationTarget}| TABLE| {eprm_table_name}\n")
write_sql(f"-- #Query: Inserted {len(source_df)} record(s) and updated 'created_by'\n")
print(f"Inserting records into {eprm_table_name}")
logging.info(f"Inserted {len(source_df)} record(s) into {eprm_table_name} and updated 'created_by'")
except mysql.connector.Error as err:
print(f"Error occurred while executing the query: {source_query}: {err}")
logging.info(f"Error occurred while executing the query: {source_query}: {err}")
if __name__ == '__main__':
import logging
from configparser import ConfigParser as conf_ConfigParser
import argparse
statFile = ""
try:
parser = argparse.ArgumentParser(description="PPM Product Catalog Replication Script")
parser.add_argument('--releaseId', required=True, help="Release ID")
parser.add_argument('--releaseType', required=True, help="Release Type")
parser.add_argument('--replicationTarget', required=True, help="Replication Target")
parser.add_argument('--opId', required=True, help="Operation ID")
parser.add_argument('--buId', required=True, help="Business Unit ID")
parser.add_argument('--replicationJobId', required=True, help="Replication Job ID")
args = parser.parse_args()
replicationJobId = args.replicationJobId
# File based variables
json_file_path = "/app/scripts/PPM_Release_Management/Product_Catalog_ETL/config/ppm_pc_replication.json"
conf_file_path = "/app/scripts/PPM_Release_Management/Product_Catalog_ETL/config/ppm_pc_replication.conf"
sql_log_file = f"/app/scripts/PPM_Release_Management/Product_Catalog_ETL/logs/{replicationJobId}_ppm_pc_replication_insert.sql"
log_file = f'/app/scripts/PPM_Release_Management/Product_Catalog_ETL/logs/{replicationJobId}_ppm_pc_replication_insert.log'
statFile = f'/app/scripts/PPM_Release_Management/Product_Catalog_ETL/logs/{replicationJobId}_ppm_pc_replication_insert.status'
# Status file for reading in main shell script
print("statFile: %s" % statFile)
statFile = open(statFile, "w")
# Core ppm_pc_replication Configuration
if not os.path.exists(conf_file_path):
print("CONFIGURATION FILE: ", conf_file_path)
raise FileNotFoundError("CONFIGURATION FILE MISSING")
CONFIG = conf_ConfigParser()
CONFIG.read(conf_file_path)
print(CONFIG.sections())
# Set up logging
logging.basicConfig(
filename=log_file,
level=CONFIG.get('CONFIG_LOGGING', 'LOG_LEVEL', raw=True),
format=CONFIG.get('CONFIG_LOG_FORMAT', 'LOG_FORMAT_DISP', raw=True),
datefmt=CONFIG.get('CONFIG_LOG_FORMAT', 'LOG_FORMAT_DATE', raw=True)
)
logging.info('LOGGER initiated')
# Read JSON data from file
if not os.path.exists(json_file_path):
logging.error("CREDENTIAL FILE MISSING")
logging.error("CREDENTIAL FILE: %s" % json_file_path)
raise FileNotFoundError("CREDENTIAL FILE MISSING")
with open(json_file_path) as json_file:
json_data = json_load(json_file)
# Open SQL log file for writing
sql_log_file = open(sql_log_file, "w")
if main(args, sql_log_file, logging, json_data):
print("Inserting data")
statFile.write("SUCCESS")
else:
statFile.write("FAILED")
sql_log_file.close()
except FileNotFoundError as ferr:
print("Error - {} . Line No - {} ".format(str(ferr), str(sys.exc_info()[-1].tb_lineno)))
statFile.write("FAILED")
except Exception as err:
print("Error - {} . Line No - {} ".format(str(err), str(sys.exc_info()[-1].tb_lineno)))
statFile.write("FAILED")
if isinstance(statFile, io_TextIOBase):
statFile.close()
for above code iam getting below error
Error - not enough values to unpack (expected 7, got 4) . Line No - 214