Nomad changes

packages/java/dev/kreuzberg/ByteArrayToIntArraySerializer.java

@@ -0,0 +1,35 @@
+// This file is auto-generated by alef — DO NOT EDIT.
+// alef:hash:4e15143f4af1ae8bafbdb1506ef057da924484c66a19483966333558ad437e75
+// To regenerate: alef generate
+// To verify freshness: alef verify --exit-code
+// Issues & docs: https://github.com/kreuzberg-dev/alef
+package dev.kreuzberg;
+
+import com.fasterxml.jackson.core.JsonGenerator;
+import com.fasterxml.jackson.databind.SerializerProvider;
+import com.fasterxml.jackson.databind.ser.std.StdSerializer;
+
+/**
+ * Serialises {@code byte[]} as a JSON array of integers.
+ *
+ * <p>Jackson's default serialiser encodes {@code byte[]} as a base64 string, but
+ * Rust's {@code serde} for {@code Vec<u8>} expects {@code [72, 101, 108, ...]}.
+ * Annotate any {@code byte[]} field sent to the FFI layer with
+ * {@code @JsonSerialize(using = ByteArrayToIntArraySerializer.class)}.
+ */
+public class ByteArrayToIntArraySerializer extends StdSerializer<byte[]> {
+    /** Default constructor required by Jackson. */
+    public ByteArrayToIntArraySerializer() {
+        super(byte[].class);
+    }
+
+    @Override
+    public void serialize(final byte[] value, final JsonGenerator gen,
+            final SerializerProvider provider) throws java.io.IOException {
+        gen.writeStartArray();
+        for (byte b : value) {
+            gen.writeNumber(b & 0xFF);
+        }
+        gen.writeEndArray();
+    }
+}