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com.algolia.search.com.fasterxml.jackson.datatype.jsr310.ser.LocalDateSerializer Maven / Gradle / Ivy
/*
* Copyright 2013 FasterXML.com
*
* 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
*
* http://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 com.fasterxml.jackson.datatype.jsr310.ser;
import com.fasterxml.jackson.annotation.JsonFormat;
import java.io.IOException;
import java.time.LocalDate;
import java.time.format.DateTimeFormatter;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonToken;
import com.fasterxml.jackson.core.type.WritableTypeId;
import com.fasterxml.jackson.databind.*;
import com.fasterxml.jackson.databind.jsonFormatVisitors.JsonFormatVisitorWrapper;
import com.fasterxml.jackson.databind.jsonFormatVisitors.JsonStringFormatVisitor;
import com.fasterxml.jackson.databind.jsonFormatVisitors.JsonValueFormat;
import com.fasterxml.jackson.databind.jsontype.TypeSerializer;
/**
* Serializer for Java 8 temporal {@link LocalDate}s.
*
* @author Nick Williams
* @since 2.2
*/
public class LocalDateSerializer extends JSR310FormattedSerializerBase
{
private static final long serialVersionUID = 1L;
public static final LocalDateSerializer INSTANCE = new LocalDateSerializer();
protected LocalDateSerializer() {
super(LocalDate.class);
}
protected LocalDateSerializer(LocalDateSerializer base,
Boolean useTimestamp, DateTimeFormatter dtf, JsonFormat.Shape shape) {
super(base, useTimestamp, dtf, shape);
}
public LocalDateSerializer(DateTimeFormatter formatter) {
super(LocalDate.class, formatter);
}
@Override
protected LocalDateSerializer withFormat(Boolean useTimestamp, DateTimeFormatter dtf, JsonFormat.Shape shape) {
return new LocalDateSerializer(this, useTimestamp, dtf, shape);
}
@Override
public void serialize(LocalDate date, JsonGenerator g, SerializerProvider provider) throws IOException
{
if (useTimestamp(provider)) {
if (_shape == JsonFormat.Shape.NUMBER_INT) {
g.writeNumber(date.toEpochDay());
} else {
g.writeStartArray();
_serializeAsArrayContents(date, g, provider);
g.writeEndArray();
}
} else {
g.writeString((_formatter == null) ? date.toString() : date.format(_formatter));
}
}
@Override
public void serializeWithType(LocalDate value, JsonGenerator g,
SerializerProvider provider, TypeSerializer typeSer) throws IOException
{
WritableTypeId typeIdDef = typeSer.writeTypePrefix(g,
typeSer.typeId(value, serializationShape(provider)));
// need to write out to avoid double-writing array markers
switch (typeIdDef.valueShape) {
case START_ARRAY:
_serializeAsArrayContents(value, g, provider);
break;
case VALUE_NUMBER_INT:
g.writeNumber(value.toEpochDay());
break;
default:
g.writeString((_formatter == null) ? value.toString() : value.format(_formatter));
}
typeSer.writeTypeSuffix(g, typeIdDef);
}
protected void _serializeAsArrayContents(LocalDate value, JsonGenerator g,
SerializerProvider provider) throws IOException
{
g.writeNumber(value.getYear());
g.writeNumber(value.getMonthValue());
g.writeNumber(value.getDayOfMonth());
}
@Override
public void acceptJsonFormatVisitor(JsonFormatVisitorWrapper visitor, JavaType typeHint) throws JsonMappingException
{
SerializerProvider provider = visitor.getProvider();
boolean useTimestamp = (provider != null) && useTimestamp(provider);
if (useTimestamp) {
_acceptTimestampVisitor(visitor, typeHint);
} else {
JsonStringFormatVisitor v2 = visitor.expectStringFormat(typeHint);
if (v2 != null) {
v2.format(JsonValueFormat.DATE);
}
}
}
@Override // since 2.9
protected JsonToken serializationShape(SerializerProvider provider) {
if (useTimestamp(provider)) {
if (_shape == JsonFormat.Shape.NUMBER_INT) {
return JsonToken.VALUE_NUMBER_INT;
}
return JsonToken.START_ARRAY;
}
return JsonToken.VALUE_STRING;
}
}