String() — netty Function Reference

Architecture documentation for the String() function in JdkAlpnSslEngine.java from the netty codebase.

Function java Buffer Allocators

Entity Profile

Buffer→ Allocators→ String() — netty Function Reference

Dependency Diagram

graph TD
  00bbeee1_a1ed_4eda_8a7f_ba9f999421da["String()"]
  301bb277_7cd2_153d_3f93_7fceaab2afee["AlpnSelector"]
  00bbeee1_a1ed_4eda_8a7f_ba9f999421da -->|defined in| 301bb277_7cd2_153d_3f93_7fceaab2afee
  style 00bbeee1_a1ed_4eda_8a7f_ba9f999421da fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

handler/src/main/java/io/netty/handler/ssl/JdkAlpnSslEngine.java lines 45–60

        @Override
        public String apply(SSLEngine sslEngine, List<String> strings) {
            assert !called;
            called = true;

            try {
                String selected = selector.select(strings);
                return selected == null ? StringUtil.EMPTY_STRING : selected;
            } catch (Exception cause) {
                // Returning null means we want to fail the handshake.
                //
                // See https://download.java.net/java/jdk9/docs/api/javax/net/ssl/
                // SSLEngine.html#setHandshakeApplicationProtocolSelector-java.util.function.BiFunction-
                return null;
            }
        }