Add a Netty substitution for ZstdConstants

quarkusio · Mar 28, 2024 · 1b4c0f3 · 1b4c0f3
1 parent 6d6165c
commit 1b4c0f3
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Showing 2 changed files with 18 additions and 0 deletions.
diff --git a/extensions/netty/deployment/src/main/java/io/quarkus/netty/deployment/NettyProcessor.java b/extensions/netty/deployment/src/main/java/io/quarkus/netty/deployment/NettyProcessor.java
@@ -120,6 +120,7 @@ NativeImageConfigBuildItem build(
                     .addRuntimeInitializedClass("io.netty.handler.codec.http.websocketx.extensions.compression.DeflateDecoder")
                     .addRuntimeInitializedClass("io.netty.handler.codec.http.websocketx.WebSocket00FrameEncoder")
                     .addRuntimeInitializedClass("io.netty.handler.codec.compression.ZstdOptions")
+                    .addRuntimeInitializedClass("io.netty.handler.codec.compression.ZstdConstants")
                     .addRuntimeInitializedClass("io.netty.handler.codec.compression.BrotliOptions");
         } else {
             log.debug("Not registering Netty HTTP classes as they were not found");

diff --git a/...time/src/main/java/io/quarkus/netty/runtime/graal/HttpContentCompressorSubstitutions.java b/...time/src/main/java/io/quarkus/netty/runtime/graal/HttpContentCompressorSubstitutions.java
@@ -29,6 +29,23 @@ public void flush(final ChannelHandlerContext ctx) {
         }
     }
 
+    @Substitute
+    @TargetClass(className = "io.netty.handler.codec.compression.ZstdConstants", onlyWith = IsZstdAbsent.class)
+    public static final class ZstdConstants {
+
+        // The constants make <clinit> calls to com.github.luben.zstd.Zstd so we cut links with that substitution.
+
+        static final int DEFAULT_COMPRESSION_LEVEL = 0;
+
+        static final int MIN_COMPRESSION_LEVEL = 0;
+
+        static final int MAX_COMPRESSION_LEVEL = 0;
+
+        static final int MAX_BLOCK_SIZE = 0;
+
+        static final int DEFAULT_BLOCK_SIZE = 0;
+    }
+
     public static class IsZstdAbsent implements BooleanSupplier {
 
         private boolean zstdAbsent;