com.fatboyindustrial.gsonjavatime.OffsetTimeConverter Maven / Gradle / Ivy
/*
* Copyright 2014 Greg Kopff
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package com.fatboyindustrial.gsonjavatime;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonParseException;
import com.google.gson.JsonPrimitive;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;
import java.lang.reflect.Type;
import java.time.OffsetTime;
import java.time.format.DateTimeFormatter;
/**
* GSON serialiser/deserialiser for converting {@link OffsetTime} objects.
*/
public class OffsetTimeConverter implements JsonSerializer, JsonDeserializer
{
/** Formatter. */
private static final DateTimeFormatter FORMATTER = DateTimeFormatter.ISO_OFFSET_TIME;
/**
* Gson invokes this call-back method during serialization when it encounters a field of the
* specified type.
*
* In the implementation of this call-back method, you should consider invoking
* {@link JsonSerializationContext#serialize(Object, Type)} method to create JsonElements for any
* non-trivial field of the {@code src} object. However, you should never invoke it on the
* {@code src} object itself since that will cause an infinite loop (Gson will call your
* call-back method again).
*
* @param src the object that needs to be converted to Json.
* @param typeOfSrc the actual type (fully genericized version) of the source object.
* @return a JsonElement corresponding to the specified object.
*/
@Override
public JsonElement serialize(OffsetTime src, Type typeOfSrc, JsonSerializationContext context)
{
return new JsonPrimitive(FORMATTER.format(src));
}
/**
* Gson invokes this call-back method during deserialization when it encounters a field of the
* specified type.
*
* In the implementation of this call-back method, you should consider invoking
* {@link JsonDeserializationContext#deserialize(JsonElement, Type)} method to create objects
* for any non-trivial field of the returned object. However, you should never invoke it on the
* the same type passing {@code json} since that will cause an infinite loop (Gson will call your
* call-back method again).
*
* @param json The Json data being deserialized
* @param typeOfT The type of the Object to deserialize to
* @return a deserialized object of the specified type typeOfT which is a subclass of {@code T}
* @throws JsonParseException if json is not in the expected format of {@code typeOfT}
*/
@Override
public OffsetTime deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
throws JsonParseException
{
return FORMATTER.parse(json.getAsString(), OffsetTime::from);
}
}