Package org.confng.sources

Class EnvSource

  • All Implemented Interfaces:
    ConfigSource
    public class EnvSource
extends Object
implements ConfigSource
    Configuration source that reads from environment variables.

    This source provides access to system environment variables with optional custom environment map for testing purposes.

    Since:
    1.0
    Author:
    Bharat Kumar Malviya, GitHub: github.com/imBharatMalviya
    See Also:
    ConfigSource

    • Constructor Detail

      • EnvSource

        public EnvSource()
        Creates a new EnvSource using System.getenv().

      • EnvSource

        public EnvSource​(Map<String,​String> environment)
        Creates a new EnvSource with custom environment (for testing).
        Parameters:
        environment - the environment variables to use

    • Method Detail

      • getName

        public String getName()
        Description copied from interface: ConfigSource
        Returns the name of this configuration source.
        Specified by:
        getName in interface ConfigSource
        Returns:
        the source name, never null

      • get

        public Optional<String> get​(String key)
        Description copied from interface: ConfigSource
        Retrieves a configuration value for the given key.

        If the key is not found in this source, an empty Optional should be returned. This allows the ConfNG system to try other sources in the resolution chain.

        Specified by:
        get in interface ConfigSource
        Parameters:
        key - the configuration key to look up
        Returns:
        an Optional containing the value if found, empty otherwise

      • getPriority

        public int getPriority()
        Description copied from interface: ConfigSource
        Returns the priority of this configuration source.

        Sources with higher priority values are consulted first in the resolution chain. Default priorities:

        • 100+ - Secret managers and secure sources
        • 80-99 - TestNG parameters and test-specific sources
        • 60-79 - Environment variables
        • 40-59 - System properties
        • 20-39 - Configuration files (JSON, Properties)
        • 0-19 - Default and fallback sources
        Specified by:
        getPriority in interface ConfigSource
        Returns:
        the priority value, higher values have higher priority