103 lines
3.6 KiB
Java
103 lines
3.6 KiB
Java
package com.myoa.engineering.crawl.ppomppu.support.util;
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import com.fasterxml.jackson.core.JsonGenerator;
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import com.fasterxml.jackson.core.JsonParser.Feature;
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import com.fasterxml.jackson.core.JsonProcessingException;
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import com.fasterxml.jackson.databind.DeserializationFeature;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import com.fasterxml.jackson.databind.SerializationFeature;
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import com.fasterxml.jackson.databind.SerializerProvider;
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import com.fasterxml.jackson.databind.ser.std.StdSerializer;
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import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
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import java.io.IOException;
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import org.springframework.cache.support.NullValue;
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import org.springframework.util.StringUtils;
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/**
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* ObjectMapperFactory
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*
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* @author Shin Woo-jin (woozu.shin@kakaoent.com)
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* @since 2021-08-31
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*/
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public final class ObjectMapperFactory {
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private ObjectMapperFactory() {
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}
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private static final ObjectMapper defaultMapper;
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private static final ObjectMapper httpMapper;
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static {
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defaultMapper = initDefaultMapper();
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httpMapper = initHttpMapper();
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}
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public static ObjectMapper defaultMapper() {
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return defaultMapper;
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}
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public static ObjectMapper httpMapper() {
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return httpMapper;
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}
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private static ObjectMapper initDefaultMapper() {
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final ObjectMapper objectMapper = new ObjectMapper();
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objectMapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
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objectMapper.disable(SerializationFeature.FAIL_ON_EMPTY_BEANS);
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objectMapper.disable(SerializationFeature.FAIL_ON_UNWRAPPED_TYPE_IDENTIFIERS);
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objectMapper.enable(DeserializationFeature.READ_UNKNOWN_ENUM_VALUES_AS_NULL);
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objectMapper.configure(Feature.ALLOW_UNQUOTED_CONTROL_CHARS, true);
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objectMapper.enable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
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objectMapper.registerModule(new JavaTimeModule());
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return objectMapper;
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}
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private static ObjectMapper initHttpMapper() {
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final ObjectMapper objectMapper = initDefaultMapper();
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objectMapper.configure(DeserializationFeature.READ_UNKNOWN_ENUM_VALUES_USING_DEFAULT_VALUE, true);
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return objectMapper;
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}
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public static String writeAsString(Object o) {
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try {
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return defaultMapper().writeValueAsString(o);
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} catch (JsonProcessingException e) {
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e.printStackTrace();
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return null;
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}
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}
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/**
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* Copy from {@link GenericJackson2JsonRedisSerializer.NullValueSerializer}.
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*/
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public static class NullValueSerializer extends StdSerializer<NullValue> {
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private static final long serialVersionUID = 6776419544239897328L;
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private final String classIdentifier;
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/**
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* @param classIdentifier can be {@literal null} and will be defaulted to {@code @class}.
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*/
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NullValueSerializer(String classIdentifier) {
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super(NullValue.class);
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this.classIdentifier = StringUtils.hasText(classIdentifier) ? classIdentifier : "@class";
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}
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/*
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* (non-Javadoc)
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* @see com.fasterxml.jackson.databind.ser.std.StdSerializer#serialize(java.lang.Object, com
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* .fasterxml.jackson.core.JsonGenerator, com.fasterxml.jackson.databind.SerializerProvider)
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*/
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@Override
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public void serialize(NullValue value, JsonGenerator jgen, SerializerProvider provider)
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throws IOException {
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jgen.writeStartObject();
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jgen.writeStringField(classIdentifier, NullValue.class.getName());
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jgen.writeEndObject();
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}
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}
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}
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