getBoolean() — netty Function Reference

Architecture documentation for the getBoolean() function in SystemPropertyUtil.java from the netty codebase.

Function java CommonUtil Internal

Entity Profile

CommonUtil→ Internal→ getBoolean() — netty Function Reference

Dependency Diagram

graph TD
  645d1cc7_0726_457e_4ea4_807f04a030b2["getBoolean()"]
  1e2b5a90_1617_877a_4b1d_2ffa3b96bb90["SystemPropertyUtil"]
  645d1cc7_0726_457e_4ea4_807f04a030b2 -->|defined in| 1e2b5a90_1617_877a_4b1d_2ffa3b96bb90
  style 645d1cc7_0726_457e_4ea4_807f04a030b2 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

common/src/main/java/io/netty/util/internal/SystemPropertyUtil.java lines 95–120

    public static boolean getBoolean(String key, boolean def) {
        String value = get(key);
        if (value == null) {
            return def;
        }

        value = value.trim().toLowerCase();
        if (value.isEmpty()) {
            return def;
        }

        if ("true".equals(value) || "yes".equals(value) || "1".equals(value)) {
            return true;
        }

        if ("false".equals(value) || "no".equals(value) || "0".equals(value)) {
            return false;
        }

        logger.warn(
                "Unable to parse the boolean system property '{}':{} - using the default value: {}",
                key, value, def
        );

        return def;
    }