Package com.tnsai.config

Class EnvLoader

java.lang.Object

com.tnsai.config.EnvLoader

public class EnvLoader
extends Object

Utility class for loading environment variables from .env file. Automatically loads .env file once on first access.

Searches for .env file in:

1. Current directory
2. Parent directory (for Maven multi-module projects)
3. Two levels up (for deeply nested structures)

Once loaded, environment variables are accessible via:

• System.getProperty(String) - System properties (preferred)
• System.getenv(String) - Original environment variables

Constructor Summary

Constructors

Constructor	Description
EnvLoader()

Method Summary

Modifier and Type	Method	Description
static void	ensureLoaded()	Ensure .env file is loaded.
static String	get(String key)	Get environment variable value.
static String	get(String key, String defaultValue)	Get environment variable value with default.
static boolean	has(String key)	Check if environment variable is set and non-empty.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

EnvLoader

public EnvLoader()

Method Details

ensureLoaded

public static void ensureLoaded()

Ensure .env file is loaded. Safe to call multiple times - loads only once.

get

public static String get(String key)

Get environment variable value. Checks System properties first, then environment variables.

Parameters:

key - Variable name

Returns:

Value or null if not found

get

public static String get(String key,
 String defaultValue)

Get environment variable value with default.

Parameters:

key - Variable name

defaultValue - Default value if not found

Returns:

Value or default

has

public static boolean has(String key)

Check if environment variable is set and non-empty.

Parameters:

key - Variable name

Returns:

true if set and non-empty