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Add reflection hints for Jackson's basic serializers

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Closes gh-31537
This commit is contained in:
Moritz Halbritter
2022-07-07 16:09:20 +02:00
parent a01c58fae7
commit 2dc0936db6
3 changed files with 121 additions and 2 deletions
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56
spring-boot-project/spring-boot/src/main/java/org/springframework/boot/json/JacksonRuntimeHints.java Normal file
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@@ -0,0 +1,56 @@
/*
* Copyright 2012-2022 the original author or 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 org.springframework.boot.json;
import java.util.stream.Stream;
import com.fasterxml.jackson.databind.ser.std.ClassSerializer;
import com.fasterxml.jackson.databind.ser.std.FileSerializer;
import com.fasterxml.jackson.databind.ser.std.StdJdkSerializers.AtomicBooleanSerializer;
import com.fasterxml.jackson.databind.ser.std.StdJdkSerializers.AtomicIntegerSerializer;
import com.fasterxml.jackson.databind.ser.std.StdJdkSerializers.AtomicLongSerializer;
import com.fasterxml.jackson.databind.ser.std.TokenBufferSerializer;
import org.springframework.aot.hint.MemberCategory;
import org.springframework.aot.hint.ReflectionHints;
import org.springframework.aot.hint.RuntimeHints;
import org.springframework.aot.hint.RuntimeHintsRegistrar;
import org.springframework.util.ClassUtils;
/**
* {@link RuntimeHintsRegistrar} for Jackson.
*
* @author Moritz Halbritter
*/
class JacksonRuntimeHints implements RuntimeHintsRegistrar {
@Override
public void registerHints(RuntimeHints hints, ClassLoader classLoader) {
if (!ClassUtils.isPresent("com.fasterxml.jackson.databind.ser.BasicSerializerFactory", classLoader)) {
return;
}
registerSerializers(hints.reflection());
}
private void registerSerializers(ReflectionHints hints) {
Stream.of(AtomicBooleanSerializer.class, AtomicIntegerSerializer.class, AtomicLongSerializer.class,
FileSerializer.class, ClassSerializer.class, TokenBufferSerializer.class)
.forEach((type) -> hints.registerType(type,
(hint) -> hint.withMembers(MemberCategory.INVOKE_PUBLIC_CONSTRUCTORS)));
}
}

5
spring-boot-project/spring-boot/src/main/resources/META-INF/spring/aot.factories
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@@ -1,9 +1,10 @@
org.springframework.aot.hint.RuntimeHintsRegistrar=\
org.springframework.boot.context.config.ConfigDataLocationRuntimeHintsRegistrar,\
org.springframework.boot.env.PropertySourceRuntimeHintsRegistrar,\
org.springframework.boot.json.JacksonRuntimeHints,\
org.springframework.boot.logging.java.JavaLoggingSystemRuntimeHints,\
org.springframework.boot.logging.logback.LogbackRuntimeHintsRegistrar,\
org.springframework.boot.WebApplicationType.WebApplicationTypeRuntimeHintsRegistrar,\
org.springframework.boot.logging.java.JavaLoggingSystemRuntimeHints
org.springframework.boot.WebApplicationType.WebApplicationTypeRuntimeHintsRegistrar
org.springframework.beans.factory.aot.BeanFactoryInitializationAotProcessor=\
org.springframework.boot.context.properties.ConfigurationPropertiesBeanFactoryInitializationAotProcessor

62
spring-boot-project/spring-boot/src/test/java/org/springframework/boot/json/JacksonRuntimeHintsTests.java Normal file
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@@ -0,0 +1,62 @@
/*
* Copyright 2012-2022 the original author or 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 org.springframework.boot.json;
import java.util.Set;
import com.fasterxml.jackson.databind.ser.std.ClassSerializer;
import com.fasterxml.jackson.databind.ser.std.FileSerializer;
import com.fasterxml.jackson.databind.ser.std.StdJdkSerializers.AtomicBooleanSerializer;
import com.fasterxml.jackson.databind.ser.std.StdJdkSerializers.AtomicIntegerSerializer;
import com.fasterxml.jackson.databind.ser.std.StdJdkSerializers.AtomicLongSerializer;
import com.fasterxml.jackson.databind.ser.std.TokenBufferSerializer;
import org.junit.jupiter.api.Test;
import org.springframework.aot.hint.MemberCategory;
import org.springframework.aot.hint.ReflectionHints;
import org.springframework.aot.hint.RuntimeHints;
import org.springframework.aot.hint.TypeHint;
import static org.assertj.core.api.Assertions.assertThat;
/**
* Tests for {@link JacksonRuntimeHints}.
*
* @author Moritz Halbritter
*/
class JacksonRuntimeHintsTests {
@Test
void shouldRegisterSerializerConstructors() {
ReflectionHints hints = registerHints();
var serializers = Set.of(AtomicBooleanSerializer.class, AtomicIntegerSerializer.class,
AtomicLongSerializer.class, FileSerializer.class, ClassSerializer.class, TokenBufferSerializer.class);
for (var serializer : serializers) {
TypeHint typeHint = hints.getTypeHint(serializer);
assertThat(typeHint).withFailMessage(() -> "No hints found for serializer " + serializer).isNotNull();
Set<MemberCategory> memberCategories = typeHint.getMemberCategories();
assertThat(memberCategories).containsExactly(MemberCategory.INVOKE_PUBLIC_CONSTRUCTORS);
}
}
private ReflectionHints registerHints() {
RuntimeHints hints = new RuntimeHints();
new JacksonRuntimeHints().registerHints(hints, getClass().getClassLoader());
return hints.reflection();
}
}