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Adapter easyjson to Jackson
/*
* Copyright 2019 the original author or authors.
*
* Licensed under the Apache, 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 http://www.gnu.org/licenses/lgpl-3.0.html
*
* 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 com.jn.easyjson.jackson;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.*;
import com.fasterxml.jackson.databind.module.SimpleDeserializers;
import com.fasterxml.jackson.databind.module.SimpleModule;
import com.jn.easyjson.core.JSON;
import com.jn.easyjson.core.JSONBuilder;
import com.jn.easyjson.core.annotation.DependOn;
import com.jn.easyjson.core.bean.propertynaming.BeanPropertyNamingPolicy;
import com.jn.easyjson.core.bean.propertynaming.BeanPropertyNamingPolicyRegistry;
import com.jn.easyjson.core.bean.propertynaming.ProxyDialectNamingPolicy;
import com.jn.easyjson.core.exclusion.ExclusionConfiguration;
import com.jn.easyjson.jackson.bean.propertynaming.JacksonPropertyNamingStrategy;
import com.jn.easyjson.jackson.deserializer.BooleanDeserializer;
import com.jn.easyjson.jackson.deserializer.Deserializers;
import com.jn.easyjson.jackson.deserializer.EnumDeserializer;
import com.jn.easyjson.jackson.ext.EasyJsonJacksonAnnotationIntrospector;
import com.jn.easyjson.jackson.ext.EasyJsonObjectMapper;
import com.jn.easyjson.jackson.modifier.EasyjsonBeanDeserializerModifier;
import com.jn.easyjson.jackson.modifier.EasyjsonBeanSerializerModifier;
import com.jn.easyjson.jackson.serializer.BooleanSerializer;
import com.jn.easyjson.jackson.serializer.EnumSerializer;
import com.jn.langx.annotation.Name;
import com.jn.langx.util.Strings;
import com.jn.langx.util.reflect.Reflects;
import java.lang.reflect.Method;
import java.util.Locale;
import java.util.TimeZone;
@Name("jackson")
@DependOn("com.fasterxml.jackson.databind.ObjectMapper")
public class JacksonJSONBuilder extends JSONBuilder {
private static boolean moduleInited = false;
private static SimpleModule module = new SimpleModule();
static {
makesureEasyJsonBaseModuleRegisted();
}
public JacksonJSONBuilder() {
super();
dialectIdentify(Jacksons.JACKSON);
}
public JacksonJSONBuilder(ExclusionConfiguration exclusionConfiguration) {
super(exclusionConfiguration);
dialectIdentify(Jacksons.JACKSON);
}
private static void makesureEasyJsonBaseModuleRegisted() {
if (!moduleInited) {
synchronized (JacksonJSONBuilder.class) {
SimpleDeserializers simpleDeserializers = new Deserializers();
module.setDeserializers(simpleDeserializers);
// boolean
module.addSerializer(Boolean.class, new BooleanSerializer());
module.addDeserializer(Boolean.class, new BooleanDeserializer());
// enum
module.addDeserializer(Enum.class, new EnumDeserializer());
module.addSerializer(Enum.class, new EnumSerializer());
// beans
module.setSerializerModifier(new EasyjsonBeanSerializerModifier());
module.setDeserializerModifier(new EasyjsonBeanDeserializerModifier());
// module.addSerializer(new MapEntrySubClassSerializer());
moduleInited = true;
}
}
}
private void configEnum(EasyJsonObjectMapper objectMapper) {
// Enum: jackson default priority: ordinal() > toString() > name()
// Our EnumSerializer priority: ordinal() > toString() > field > name()
// step 1 : clear old config:
SerializationConfig serializationConfig = objectMapper.getSerializationConfig();
serializationConfig = serializationConfig.withoutAttribute(JacksonConstants.SERIALIZE_ENUM_USING_FIELD_ATTR_KEY);
DeserializationConfig deserializationConfig = objectMapper.getDeserializationConfig();
deserializationConfig = deserializationConfig.withoutAttribute(JacksonConstants.SERIALIZE_ENUM_USING_INDEX_ATTR_KEY);
deserializationConfig = deserializationConfig.withoutAttribute(JacksonConstants.SERIALIZE_ENUM_USING_FIELD_ATTR_KEY);
// ordinal()
if (serializeEnumUsingIndex()) {
serializationConfig = serializationConfig.with(SerializationFeature.WRITE_ENUMS_USING_INDEX);
}
serializationConfig = serializationConfig.withAttribute(JacksonConstants.SERIALIZE_ENUM_USING_INDEX_ATTR_KEY, serializeEnumUsingIndex());
deserializationConfig = deserializationConfig.withAttribute(JacksonConstants.SERIALIZE_ENUM_USING_INDEX_ATTR_KEY, serializeEnumUsingIndex());
// toString()
if (serializeEnumUsingToString()) {
serializationConfig = serializationConfig.with(SerializationFeature.WRITE_ENUMS_USING_TO_STRING);
deserializationConfig = deserializationConfig.with(DeserializationFeature.READ_ENUMS_USING_TO_STRING);
}
// field
if (serializeEnumUsingField() != null) {
serializationConfig = serializationConfig.withAttribute(JacksonConstants.SERIALIZE_ENUM_USING_FIELD_ATTR_KEY, serializeEnumUsingField());
deserializationConfig = deserializationConfig.withAttribute(JacksonConstants.SERIALIZE_ENUM_USING_FIELD_ATTR_KEY, serializeEnumUsingField());
}
objectMapper.setDescrializationConfig(deserializationConfig);
objectMapper.setSerializationConfig(serializationConfig);
}
private void configBoolean(EasyJsonObjectMapper objectMapper) {
SerializationConfig serializationConfig = objectMapper.getSerializationConfig();
serializationConfig = serializationConfig.withAttribute(JacksonConstants.SERIALIZE_BOOLEAN_USING_1_0_ATTR_KEY, serializeBooleanUsing1_0());
serializationConfig = serializationConfig.withAttribute(JacksonConstants.SERIALIZE_BOOLEAN_USING_ON_OFF_ATTR_KEY, serializeBooleanUsingOnOff());
DeserializationConfig deserializationConfig = objectMapper.getDeserializationConfig();
deserializationConfig = deserializationConfig.withAttribute(JacksonConstants.SERIALIZE_BOOLEAN_USING_1_0_ATTR_KEY, serializeBooleanUsing1_0());
deserializationConfig = deserializationConfig.withAttribute(JacksonConstants.SERIALIZE_BOOLEAN_USING_ON_OFF_ATTR_KEY, serializeBooleanUsingOnOff());
objectMapper.setSerializationConfig(serializationConfig);
objectMapper.setDescrializationConfig(deserializationConfig);
}
private void configDate(EasyJsonObjectMapper objectMapper) {
SerializationConfig serializationConfig = objectMapper.getSerializationConfig();
serializationConfig = serializationConfig.withAttribute(JacksonConstants.SERIALIZE_DATE_USING_DATE_FORMAT_ATTR_KEY, serializeUseDateFormat());
serializationConfig = serializationConfig.withAttribute(JacksonConstants.SERIALIZE_DATE_USING_TO_STRING_ATTR_KEY, serializeDateUsingToString());
serializationConfig = serializationConfig.withAttribute(JacksonConstants.SERIALIZE_LOCALE, serializeUsingLocale());
serializationConfig = serializationConfig.withAttribute(JacksonConstants.SERIALIZE_TIMEZONE, serializeUsingTimeZone());
DeserializationConfig deserializationConfig = objectMapper.getDeserializationConfig();
deserializationConfig = deserializationConfig.withAttribute(JacksonConstants.SERIALIZE_DATE_USING_DATE_FORMAT_ATTR_KEY, serializeUseDateFormat());
deserializationConfig = deserializationConfig.withAttribute(JacksonConstants.SERIALIZE_DATE_USING_TO_STRING_ATTR_KEY, serializeDateUsingToString());
// deserializationConfig = deserializationConfig.with(serializeUsingTimeZone());
deserializationConfig = Reflects.invokeAnyMethod(deserializationConfig, "with", new Class[]{TimeZone.class}, new Object[]{serializeUsingTimeZone()}, true, true);
// deserializationConfig = deserializationConfig.with(serializeUsingLocale());
deserializationConfig = Reflects.invokeAnyMethod(deserializationConfig, "with", new Class[]{Locale.class}, new Object[]{serializeUsingLocale()}, true, true);
deserializationConfig = deserializationConfig.withAttribute(JacksonConstants.SERIALIZE_LOCALE, serializeUsingLocale());
deserializationConfig = deserializationConfig.withAttribute(JacksonConstants.SERIALIZE_TIMEZONE, serializeUsingTimeZone());
objectMapper.setSerializationConfig(serializationConfig);
objectMapper.setDescrializationConfig(deserializationConfig);
}
private void configNumber(EasyJsonObjectMapper objectMapper) {
SerializationConfig serializationConfig = objectMapper.getSerializationConfig();
serializationConfig = serializationConfig.withAttribute(JacksonConstants.SERIALIZE_LONG_USING_STRING_ATTR_KEY, serializeLongAsString());
serializationConfig = serializationConfig.withAttribute(JacksonConstants.SERIALIZE_NUMBER_USING_STRING_ATTR_KEY, serializeNumberAsString());
DeserializationConfig deserializationConfig = objectMapper.getDeserializationConfig();
deserializationConfig = deserializationConfig.withAttribute(JacksonConstants.SERIALIZE_LONG_USING_STRING_ATTR_KEY, serializeLongAsString());
deserializationConfig = deserializationConfig.withAttribute(JacksonConstants.SERIALIZE_NUMBER_USING_STRING_ATTR_KEY, serializeNumberAsString());
objectMapper.setSerializationConfig(serializationConfig);
objectMapper.setDescrializationConfig(deserializationConfig);
}
private void configNulls(EasyJsonObjectMapper objectMapper) {
if (serializeNulls()) {
objectMapper.configure(SerializationFeature.WRITE_NULL_MAP_VALUES, true);
SerializationConfig config = objectMapper.getSerializationConfig();
Method withAppendedAnnotationIntrospector = Reflects.getAnyMethod(SerializationConfig.class, "withAppendedAnnotationIntrospector", AnnotationIntrospector.class);
if (withAppendedAnnotationIntrospector != null) {
config = Reflects.invoke(withAppendedAnnotationIntrospector, config, new Object[]{new EasyJsonJacksonAnnotationIntrospector()}, true, true);
}
config = config.withAttribute(JacksonConstants.SERIALIZE_NULLS_ATTR_KEY, true);
objectMapper.setConfig(config);
} else {
objectMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
}
}
@Override
public JSON build() {
makesureEasyJsonBaseModuleRegisted();
EasyJsonObjectMapper mapper = new EasyJsonObjectMapper();
mapper.setJsonBuilder(this);
mapper.registerModule(module);
// 配置全局属性
mapper.setSerializationConfig(mapper.getSerializationConfig().withAttribute(JacksonConstants.ENABLE_CUSTOM_CONFIGURATION, this.isEnableCustomConfiguration()));
mapper.setDescrializationConfig(mapper.getDeserializationConfig().withAttribute(JacksonConstants.ENABLE_CUSTOM_CONFIGURATION, this.isEnableCustomConfiguration()));
configNulls(mapper);
configBoolean(mapper);
configNumber(mapper);
configEnum(mapper);
configDate(mapper);
if (!serializeNonFieldGetter()) {
mapper.configure(MapperFeature.REQUIRE_SETTERS_FOR_GETTERS, true);
}
mapper.configure(SerializationFeature.INDENT_OUTPUT, prettyFormat());
mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
mapper.configure(JsonParser.Feature.IGNORE_UNDEFINED, true);
mapper.enable(MapperFeature.CAN_OVERRIDE_ACCESS_MODIFIERS);
if (Strings.isNotBlank(this.beanPropertyNamingPolicy())) {
BeanPropertyNamingPolicy policy = BeanPropertyNamingPolicyRegistry.INSTANCE.get(this.beanPropertyNamingPolicy());
if (proxyDialectIdentify() != null) {
policy = new ProxyDialectNamingPolicy(proxyDialectIdentify(), policy);
}
mapper.setPropertyNamingStrategy(new JacksonPropertyNamingStrategy(policy));
}
JacksonAdapter jsonHandler = new JacksonAdapter();
jsonHandler.setDelegate(mapper);
JSON json = new JSON();
json.setJsonHandler(jsonHandler);
jsonHandler.setJsonBuilder(this);
applyCustomizer(json);
return json;
}
@Override
protected Object clone() throws CloneNotSupportedException {
JacksonJSONBuilder result = new JacksonJSONBuilder(this.getExclusionConfiguration());
this.copyTo(result);
return result;
}
}