abstract_property.py

from abc import ABC, abstractmethod

class DatabaseConfig(ABC):
    @property
    @abstractmethod
    def connection_string(self):
        """Define a standardized property to get a database connection string."""
        pass

class ProductionDatabaseConfig(DatabaseConfig):
    def __init__(self, host, database, user, password):
        self.host = host
        self.database = database
        self.user = user
        self.password = password

    @property
    def connection_string(self):
        """Generate a connection string using production credentials."""
        return f"Server={self.host};Database={self.database};User Id={self.user};Password={self.password};"

class DevelopmentDatabaseConfig(DatabaseConfig):
    def __init__(self, host, database):
        self.host = host
        self.database = database

    @property
    def connection_string(self):
        """Generate a connection string using development credentials with default user."""
        return f"Server={self.host};Database={self.database};User Id=dev;Password=dev;"

# Usage example
if __name__ == "__main__":
    # Initialize configurations
    prod_config = ProductionDatabaseConfig("prod-server", "prod-db", "admin", "securepassword")
    dev_config = DevelopmentDatabaseConfig("dev-server", "dev-db")

    # Print connection strings
    print("Production Connection String:")
    print(prod_config.connection_string)
    print("Development Connection String:")
    print(dev_config.connection_string)