Support renaming constructor arguments and choosing a different constructor by mixins

serde-jackson-tck/src/main/groovy/io/micronaut/serde/jackson/JsonPropertySpec.groovy

@@ -5,6 +5,121 @@ import spock.lang.Unroll
 
 class JsonPropertySpec extends JsonCompileSpec {
 
+    void "simple JsonCreator"() {
+        given:
+            def context = buildContext('example.Test', '''
+package example;
+
+import com.fasterxml.jackson.annotation.*;
+@io.micronaut.serde.annotation.Serdeable
+class Test {
+    public final String foo;
+
+    @JsonCreator
+    public Test(@JsonProperty("foo") String foo) {
+        this.foo = foo;
+    }
+}
+
+''')
+            def deserialized = jsonMapper.readValue('{"foo": "42"}', typeUnderTest)
+
+        expect:
+            deserialized.foo == "42"
+
+        cleanup:
+            context.close()
+    }
+
+    void "static JsonCreator"() {
+        given:
+            def context = buildContext('example.Test', '''
+package example;
+
+import com.fasterxml.jackson.annotation.*;
+@io.micronaut.serde.annotation.Serdeable
+class Test {
+    public final String foo;
+
+    private Test(@JsonProperty("foo") String foo) {
+        this.foo = foo;
+    }
+
+    @JsonCreator
+    public static Test creator(@JsonProperty("foo") String foo) {
+        return new Test(foo + "xyz");
+    }
+}
+''')
+            def deserialized = jsonMapper.readValue('{"foo": "42"}', typeUnderTest)
+
+        expect:
+            deserialized.foo == "42xyz"
+
+        cleanup:
+            context.close()
+    }
+
+    void "static JsonCreator on interface"() {
+        given:
+            def context = buildContext('example.Test', '''
+package example;
+
+import com.fasterxml.jackson.annotation.*;
+@io.micronaut.serde.annotation.Serdeable
+interface Test {
+
+    String getFoo();
+
+    @JsonCreator
+    static Test creator(@JsonProperty("foo") String foo) {
+        return (example.Test) () -> foo + "abc";
+    }
+
+}
+''')
+            def deserialized = jsonMapper.readValue('{"foo": "42"}', typeUnderTest)
+
+        expect:
+            deserialized.foo == "42abc"
+
+        cleanup:
+            context.close()
+    }
+
+    void "static JsonCreator(mode = JsonCreator.Mode.DELEGATING) on interface"() {
+        given:
+            def context = buildContext('example.Test', '''
+package example;
+
+import com.fasterxml.jackson.annotation.*;
+import io.micronaut.serde.annotation.Serdeable;
+
+@Serdeable
+interface Test {
+
+    String getFoo();
+
+    @JsonCreator(mode = JsonCreator.Mode.DELEGATING)
+    static Test creator(Data data) {
+        return (example.Test) () -> data.foo() + "abc";
+    }
+
+}
+
+@Serdeable
+record Data(String foo) {
+}
+''')
+            def deserialized = jsonMapper.readValue('{"foo": "42"}', typeUnderTest)
+
+        expect:
+            deserialized.foo == "42abc"
+
+        cleanup:
+            context.close()
+    }
+
     void "test @JsonProperty.Access.WRITE_ONLY (set only) - records"() {
         given:
             def context = buildContext("""

serde-jackson/src/test/groovy/io/micronaut/serde/jackson/SerdeImportSpec.groovy

@@ -108,6 +108,60 @@ abstract class TestMixin  {
         context.close()
     }
 
+    void "test mixin constructor with parameter renamed"() {
+        def context = buildContext('mixintest.Test','''
+package mixintest;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.micronaut.core.annotation.Introspected;
+import io.micronaut.serde.annotation.SerdeImport;
+import io.micronaut.http.HttpStatus;
+import io.micronaut.serde.annotation.Serdeable;
+
+import java.util.List;
+@SerdeImport(
+    value = Test.class,
+    mixin = TestMixin.class
+)
+class TestImport {}
+
+public class Test {
+    private int code;
+    Test(int code) {
+        this.code = code;
+    }
+    public int getCode() {
+        return code;
+    }
+}
+
+abstract class TestMixin  {
+
+    @JsonCreator
+    TestMixin(@JsonProperty("customWrite") int code) {
+    }
+
+    @JsonProperty("customRead")
+    abstract int getCode();
+
+}
+
+''')
+        def impl = argumentOf(context, 'mixintest.Test')
+        def bean = impl.type.newInstance(200)
+
+        expect:
+        writeJson(jsonMapper, bean) == '{"customRead":200}'
+
+        def read = jsonMapper.readValue('{"customWrite":200}', typeUnderTest)
+        read.getCode() == 200
+
+        cleanup:
+        context.close()
+    }
+
     void "test import with interface"() {
         def context = buildContext('mixintest.HttpStatusInfo','''
 package mixintest;

serde-jackson/src/test/groovy/io/micronaut/serde/jackson/annotation/SerdeJsonPropertySpec.groovy

@@ -169,31 +169,6 @@ class Test {
         context.close()
     }
 
-    void "JsonCreator with single parameter of same name"() {
-        given:
-        def context = buildContext('example.Test', '''
-package example;
-
-import com.fasterxml.jackson.annotation.*;
-@io.micronaut.serde.annotation.Serdeable
-class Test {
-    public final String foo;
-
-    @JsonCreator
-    public Test(String foo) {
-        this.foo = foo;
-    }
-}
-''')
-        def deserialized = jsonMapper.readValue('{"foo": "42"}', typeUnderTest)
-
-        expect:
-        deserialized.foo == "42"
-
-        cleanup:
-        context.close()
-    }
-
     @PendingFeature(reason = 'single-parameter json creator. Dont think we should support this, can be done with delegating mode for JsonCreator')
     void "JsonCreator with single parameter of different name"() {
         given:

serde-jackson/src/test/groovy/io/micronaut/serde/jackson/serdeimport/JodaDateTimeSerde.java

@@ -0,0 +1,47 @@
+/*
+ * Copyright 2017-2021 original authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.micronaut.serde.jackson.serdeimport;
+
+import com.amazonaws.services.lambda.runtime.serialization.util.SerializeUtil;
+import io.micronaut.context.annotation.Requires;
+import io.micronaut.core.annotation.NonNull;
+import io.micronaut.core.type.Argument;
+import io.micronaut.serde.Decoder;
+import io.micronaut.serde.Encoder;
+import io.micronaut.serde.util.NullableSerde;
+import jakarta.inject.Singleton;
+import org.joda.time.DateTime;
+
+import java.io.IOException;
+
+@Singleton
+@Requires(classes = DateTime.class)
+public class JodaDateTimeSerde implements NullableSerde<DateTime> {
+
+    @Override
+    public void serialize(@NonNull Encoder encoder,
+                          @NonNull EncoderContext context,
+                          @NonNull Argument<? extends DateTime> type,
+                          @NonNull DateTime value) throws IOException {
+        encoder.encodeString(SerializeUtil.serializeDateTime(value, getClass().getClassLoader()));
+    }
+
+    @Override
+    @NonNull
+    public DateTime deserializeNonNull(Decoder decoder, DecoderContext decoderContext, Argument<? super DateTime> type) throws IOException {
+        return SerializeUtil.deserializeDateTime(DateTime.class, decoder.decodeString());
+    }
+}

serde-jackson/src/test/groovy/io/micronaut/serde/jackson/serdeimport/ResponseElementsEntitySerde.java

@@ -0,0 +1,40 @@
+/*
+ * Copyright 2017-2023 original authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.micronaut.serde.jackson.serdeimport;
+
+import com.amazonaws.lambda.thirdparty.com.fasterxml.jackson.annotation.JsonCreator;
+import com.amazonaws.lambda.thirdparty.com.fasterxml.jackson.annotation.JsonGetter;
+import com.amazonaws.lambda.thirdparty.com.fasterxml.jackson.annotation.JsonProperty;
+import com.amazonaws.services.lambda.runtime.events.models.s3.S3EventNotification;
+import io.micronaut.serde.annotation.SerdeImport;
+
+@SerdeImport(value = S3EventNotification.ResponseElementsEntity.class, mixin = ResponseElementsEntitySerde.ResponseElementsEntityMixin.class)
+public class ResponseElementsEntitySerde {
+    private static final String X_AMZ_ID_2 = "x-amz-id-2";
+    private static final String X_AMZ_REQUEST_ID = "x-amz-request-id";
+
+    static abstract class ResponseElementsEntityMixin {
+        @JsonGetter(X_AMZ_ID_2)
+        abstract String getxAmzId2();
+
+        @JsonGetter(X_AMZ_REQUEST_ID)
+        abstract String getxAmzRequestId();
+
+        @JsonCreator
+        ResponseElementsEntityMixin(@JsonProperty(X_AMZ_ID_2) String xAmzId2, @JsonProperty(X_AMZ_REQUEST_ID) String xAmzRequestId) {
+        }
+    }
+}

serde-jackson/src/test/groovy/io/micronaut/serde/jackson/serdeimport/S3EventNotificationSerde.java

@@ -0,0 +1,41 @@
+/*
+ * Copyright 2017-2023 original authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.micronaut.serde.jackson.serdeimport;
+
+import com.amazonaws.lambda.thirdparty.com.fasterxml.jackson.annotation.JsonProperty;
+import com.amazonaws.services.lambda.runtime.events.models.s3.S3EventNotification;
+import io.micronaut.serde.annotation.SerdeImport;
+
+import java.util.List;
+
+@SerdeImport(value = S3EventNotification.class, mixin = S3EventNotificationSerde.S3EventNotificationMixin.class)
+@SerdeImport(value = S3EventNotification.S3Entity.class)
+@SerdeImport(value = S3EventNotification.RequestParametersEntity.class)
+@SerdeImport(value = S3EventNotification.S3BucketEntity.class)
+@SerdeImport(value = S3EventNotification.UserIdentityEntity.class)
+@SerdeImport(value = S3EventNotification.S3EventNotificationRecord.class)
+public class S3EventNotificationSerde {
+    /**
+     * Records Mixin.
+     */
+    public interface S3EventNotificationMixin {
+        /**
+         * @return Records.
+         */
+        @JsonProperty("Records")
+        List<S3EventNotification.S3EventNotificationRecord> getRecords();
+    }
+}