Expose unavailability cause to use native transport

eclipse-vertx · Feb 22, 2023 · 51e7f77 · 51e7f77
1 parent f80519d
commit 51e7f77
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Showing 2 changed files with 14 additions and 0 deletions.
diff --git a/src/main/java/io/vertx/core/Vertx.java b/src/main/java/io/vertx/core/Vertx.java
@@ -660,6 +660,12 @@ default <T> Future<T> executeBlocking(Handler<Promise<T>> blockingCodeHandler) {
   @CacheReturn
   boolean isNativeTransportEnabled();
 
+  /**
+   * @return the error (if any) that cause the unavailability of native transport when {@link #isNativeTransportEnabled()}  returns {@code false}.
+   */
+  @CacheReturn
+  Throwable unavailableNativeTransportCause();
+
   /**
    * Set a default exception handler for {@link Context}, set on {@link Context#exceptionHandler(Handler)} at creation.
    *

diff --git a/src/main/java/io/vertx/core/impl/VertxImpl.java b/src/main/java/io/vertx/core/impl/VertxImpl.java
@@ -326,6 +326,14 @@ public boolean isNativeTransportEnabled() {
     return transport != Transport.JDK;
   }
 
+  @Override
+  public Throwable unavailableNativeTransportCause() {
+    if (isNativeTransportEnabled()) {
+      return null;
+    }
+    return transport.unavailabilityCause();
+  }
+
   public FileSystem fileSystem() {
     return fileSystem;
   }