Struct ConfigReader 

pub struct ConfigReader { /* private fields */ }

A configuration reader over a MultiLevelMap, with ${...} substitution.

Implementations

impl ConfigReader

pub fn load(path: &str) -> Result<Self, ConfigError>

Load a configuration file and resolve references (Java new ConfigReader(path)).

pub fn load_raw(path: &str) -> Result<Self, ConfigError>

Load a configuration file without resolving references (Java load(path, false) — used while merging base configuration files).

pub fn from_yaml_text(text: &str) -> Result<Self, ConfigError>

Build a reader from in-memory YAML text and resolve references — used for embedded built-in templates (e.g. default-log-context.yaml), the Rust analog of a library-jar classpath resource. The resources/ roots are application-owned in this port, so a library default ships compiled-in via include_str! instead of shadowing a file name.

pub fn from_map(map: BTreeMap<String, ConfigValue>) -> Self

Build a reader from an existing nested map and resolve references (Java load(Map)).

pub fn get(&self, key: &str) -> Option<ConfigValue>

Retrieve a value by composite key. None for a missing key, an explicit null, or an unresolvable ${...} reference (Java returns null in each case).

pub fn get_or(&self, key: &str, default: ConfigValue) -> ConfigValue

Retrieve a value by composite key with a default (Java get(key, defaultValue)).

pub fn get_property(&self, key: &str) -> Option<String>

Retrieve a value enforced as a string (Java getProperty).

pub fn get_property_or(&self, key: &str, default: &str) -> String

Retrieve a value enforced as a string, with a default (Java getProperty(key, default)).

pub fn exists(&self, key: &str) -> bool

True when the key resolves to a non-null value (Java exists).

pub fn is_empty(&self) -> bool

pub fn get_map(&self) -> &MultiLevelMap

The raw underlying tree, without substitution (Java getMap).

pub fn get_composite_key_values(&self) -> &BTreeMap<String, ConfigValue>

Flat map of composite key-values with substitution applied, computed once and cached (Java getCompositeKeyValues).

pub fn is_base_config(&self) -> bool

Trait Implementations

impl Debug for ConfigReader

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ConfigReader

fn default() -> Self

Returns the “default value” for a type.