Fix #506: support UUID values with Protobuf (#507)

Author: cowtowncoder

protobuf/src/main/java/com/fasterxml/jackson/dataformat/protobuf/schemagen/ProtobufSchemaHelper.java

@@ -1,6 +1,7 @@
 package com.fasterxml.jackson.dataformat.protobuf.schemagen;
 
 import java.nio.ByteBuffer;
+import java.util.UUID;
 
 import com.fasterxml.jackson.databind.*;
 
@@ -55,6 +56,8 @@ public static boolean hasIndex(BeanProperty writer) {
 
     public static boolean isBinaryType(JavaType type) {
         return type.hasRawClass(byte[].class)
+                // 24-Jul-2024, tatu: [dataformats-binary#506] UUID as Binary
+                || type.hasRawClass(UUID.class)
                 || type.isTypeOrSubTypeOf(ByteBuffer.class);
     }
 }

protobuf/src/test/java/com/fasterxml/jackson/dataformat/protobuf/schema/SchemaWithUUIDTest.java

@@ -1,8 +1,11 @@
 package com.fasterxml.jackson.dataformat.protobuf.schema;
 
 import java.nio.ByteBuffer;
+import java.nio.charset.StandardCharsets;
 import java.util.UUID;
 
+import org.junit.Assert;
+
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.dataformat.protobuf.ProtobufMapper;
 import com.fasterxml.jackson.dataformat.protobuf.ProtobufTestBase;
@@ -43,6 +46,17 @@ public void testWithUUID() throws Exception
     {
         ProtobufSchema schema = MAPPER.generateSchemaFor(UUIDBean.class);
         assertNotNull(schema);
+
+        UUIDBean input = new UUIDBean();
+        input.messageId = UUID.nameUUIDFromBytes("abc".getBytes(StandardCharsets.UTF_8));
+
+        byte[] proto = MAPPER.writer().with(schema)
+                .writeValueAsBytes(input);
+        UUIDBean result = MAPPER.readerFor(UUIDBean.class)
+                .with(schema)
+                .readValue(proto);
+        assertNotNull(result.messageId);
+        assertEquals(input.messageId, result.messageId);
     }
 
     // [dataformats-binary#68]
@@ -56,5 +70,17 @@ public void testWithBinary() throws Exception
     {
         ProtobufSchema schema = MAPPER.generateSchemaFor(BinaryBean.class);
         assertNotNull(schema);
+
+        // But let's try round-tripping too
+        BinaryBean input = new BinaryBean();
+        input.data = new byte[] { 1, 2, -1 };
+
+        byte[] proto = MAPPER.writer().with(schema)
+                .writeValueAsBytes(input);
+        BinaryBean result = MAPPER.readerFor(BinaryBean.class)
+                .with(schema)
+                .readValue(proto);
+        assertNotNull(result.data);
+        Assert.assertArrayEquals(input.data, result.data);
     }
 }

release-notes/VERSION-2.x

@@ -18,6 +18,11 @@ Active maintainers:
 
 - No changes since 2.17
 
+2.17.3 (not yet released)
+
+#506: Cannot deserialize `UUID` values
+ (reported by @uniquonil)
+
 2.17.2 (05-Jul-2024)
 
 #497: (ion) Failed copy(): `IonValueMapper` does not override copy()