com.algolia.search.com.fasterxml.jackson.datatype.jsr310.deser.YearMonthDeserializer 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.deser;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.core.JsonToken;
import com.fasterxml.jackson.databind.JsonDeserializer;
import java.io.IOException;
import java.time.DateTimeException;
import java.time.YearMonth;
import java.time.format.DateTimeFormatter;
/**
* Deserializer for Java 8 temporal {@link YearMonth}s.
*
* @author Nick Williams
* @since 2.2.0
*/
public class YearMonthDeserializer extends JSR310DateTimeDeserializerBase
{
private static final long serialVersionUID = 1L;
public static final YearMonthDeserializer INSTANCE = new YearMonthDeserializer();
private YearMonthDeserializer()
{
this(DateTimeFormatter.ofPattern("uuuu-MM"));
}
public YearMonthDeserializer(DateTimeFormatter formatter)
{
super(YearMonth.class, formatter);
}
@Override
protected JsonDeserializer withDateFormat(DateTimeFormatter dtf)
{
return new YearMonthDeserializer(dtf);
}
@Override
public YearMonth deserialize(JsonParser parser, DeserializationContext context) throws IOException
{
if (parser.hasToken(JsonToken.VALUE_STRING)) {
String string = parser.getText().trim();
if (string.length() == 0) {
return null;
}
try {
return YearMonth.parse(string, _formatter);
} catch (DateTimeException e) {
return _handleDateTimeException(context, e, string);
}
}
if (parser.isExpectedStartArrayToken()) {
JsonToken t = parser.nextToken();
if (t == JsonToken.END_ARRAY) {
return null;
}
if ((t == JsonToken.VALUE_STRING || t == JsonToken.VALUE_EMBEDDED_OBJECT)
&& context.isEnabled(DeserializationFeature.UNWRAP_SINGLE_VALUE_ARRAYS)) {
final YearMonth parsed = deserialize(parser, context);
if (parser.nextToken() != JsonToken.END_ARRAY) {
handleMissingEndArrayForSingle(parser, context);
}
return parsed;
}
if (t != JsonToken.VALUE_NUMBER_INT) {
_reportWrongToken(context, JsonToken.VALUE_NUMBER_INT, "years");
}
int year = parser.getIntValue();
int month = parser.nextIntValue(-1);
if (month == -1) {
if (!parser.hasToken(JsonToken.VALUE_NUMBER_INT)) {
_reportWrongToken(context, JsonToken.VALUE_NUMBER_INT, "months");
}
month = parser.getIntValue();
}
if (parser.nextToken() != JsonToken.END_ARRAY) {
throw context.wrongTokenException(parser, handledType(), JsonToken.END_ARRAY,
"Expected array to end");
}
return YearMonth.of(year, month);
}
if (parser.hasToken(JsonToken.VALUE_EMBEDDED_OBJECT)) {
return (YearMonth) parser.getEmbeddedObject();
}
return _handleUnexpectedToken(context, parser, JsonToken.VALUE_STRING, JsonToken.START_ARRAY);
}
}