Fix #619: add mapper.isEnabled(FormatRead/WriteFeature) methods

Author: cowtowncoder

avro/src/main/java/tools/jackson/dataformat/avro/AvroMapper.java

@@ -205,6 +205,20 @@ public AvroFactory tokenStreamFactory() {
         return (AvroFactory) _streamFactory;
     }
 
+    /*
+    /**********************************************************
+    /* Format-specific
+    /**********************************************************
+     */
+
+    public boolean isEnabled(AvroReadFeature f) {
+        return _deserializationConfig.hasFormatFeature(f);
+    }
+
+    public boolean isEnabled(AvroWriteFeature f) {
+        return _serializationConfig.hasFormatFeature(f);
+    }
+
     /*
     /**********************************************************************
     /* Schema introspection

avro/src/test/java/tools/jackson/dataformat/avro/MapperConfigTest.java

@@ -2,6 +2,8 @@
 
 import java.io.ByteArrayOutputStream;
 
+import org.junit.jupiter.api.Test;
+
 import tools.jackson.core.FormatSchema;
 import tools.jackson.core.StreamReadCapability;
 import tools.jackson.core.StreamWriteFeature;
@@ -28,6 +30,7 @@ public String getSchemaType() {
     /**********************************************************************
      */
 
+    @Test
     public void testFactoryDefaults() throws Exception
     {
         assertTrue(MAPPER.tokenStreamFactory().isEnabled(AvroReadFeature.AVRO_BUFFERING));
@@ -38,25 +41,29 @@ public void testFactoryDefaults() throws Exception
         assertFalse(MAPPER.tokenStreamFactory().canUseSchema(BOGUS_SCHEMA));
     }
 
+    @Test
     public void testParserDefaults() throws Exception
     {
-        AvroParser p = (AvroParser) MAPPER.createParser(new byte[0]);
-        assertTrue(p.isEnabled(AvroReadFeature.AVRO_BUFFERING));
-        p.close();
+        try (AvroParser p = (AvroParser) MAPPER.createParser(new byte[0])) {
+            assertTrue(p.isEnabled(AvroReadFeature.AVRO_BUFFERING));
+        }
 
         AvroMapper mapper = AvroMapper.builder()
                 .disable(AvroReadFeature.AVRO_BUFFERING)
                 .build();
-        p = (AvroParser) mapper.createParser(new byte[0]);
-        assertFalse(p.isEnabled(AvroReadFeature.AVRO_BUFFERING));
-
-        // 15-Jan-2021, tatu: 2.14 added this setting, not enabled in
-        //    default set
-        assertTrue(p.streamReadCapabilities().isEnabled(StreamReadCapability.EXACT_FLOATS));
+        try (AvroParser p = (AvroParser) mapper.createParser(new byte[0])) {
+            assertFalse(p.isEnabled(AvroReadFeature.AVRO_BUFFERING));
+    
+            // 15-Jan-2021, tatu: 2.14 added this setting, not enabled in
+            //    default set
+            assertTrue(p.streamReadCapabilities().isEnabled(StreamReadCapability.EXACT_FLOATS));
+        }
 
-        p.close();
-    }
+        // [dataformats-binary#619]
+        assertTrue(MAPPER.isEnabled(AvroReadFeature.AVRO_BUFFERING));
+}
 
+    @Test
     public void testGeneratorDefaults() throws Exception
     {
         ByteArrayOutputStream bytes = new ByteArrayOutputStream();
@@ -76,6 +83,9 @@ public void testGeneratorDefaults() throws Exception
                 .createGenerator(bytes);
         assertFalse(g.isEnabled(AvroWriteFeature.AVRO_BUFFERING));
         g.close();
+
+        // [dataformats-binary#619]
+        assertFalse(MAPPER.isEnabled(AvroWriteFeature.AVRO_FILE_OUTPUT));
     }
 
     /*
@@ -84,6 +94,7 @@ public void testGeneratorDefaults() throws Exception
     /**********************************************************************
      */
 
+    @Test
     public void testDefaultSettingsWithAvroMapper()
     {
         AvroMapper mapper = new AvroMapper();

release-notes/CREDITS

@@ -18,3 +18,8 @@ Fawzi Essam (@iifawzi)
 * Contribited #591: Change `CBOR` Features defaults for 3.0
  (3.0.0)
 
+Andy Wilkinson (@wilkinsona)
+
+* Requested #619: (avro, cbor) Add `isEnabled()` methods for format-specific features (like
+  `CBORReadFeature` and `CBORWriteFeature`) to mappers
+ (3.1.0)

release-notes/VERSION

@@ -14,6 +14,12 @@ implementations)
 === Releases ===
 ------------------------------------------------------------------------
 
+3.1.0 (not yet released)
+
+#619: (avro, cbor) Add `isEnabled()` methods for format-specific features (like
+  `CBORReadFeature` and `CBORWriteFeature`) to mappers
+ (requested by Andy W)
+
 3.0.1 (21-Oct-2025)
 
 No changes since 3.0.0