com.keydap.sparrow.DateTimeSerializer.java Source code

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Here is the source code for com.keydap.sparrow.DateTimeSerializer.java

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/*
 * Copyright (c) 2016 Keydap Software.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * See LICENSE file for details.
 */
package com.keydap.sparrow;

import java.lang.reflect.Type;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.TimeZone;

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;

/**
 * RFC3339 date serializer
 * 
 * @author Kiran Ayyagari (kayyagari@keydap.com)
 */
public class DateTimeSerializer implements JsonSerializer<Date>, JsonDeserializer<Date> {

    private DateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'");//RFC3339

    public DateTimeSerializer() {
        df.setTimeZone(TimeZone.getTimeZone("UTC"));
    }

    @Override
    public Date deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
            throws JsonParseException {
        String d = json.getAsString();
        try {
            return df.parse(d);
        } catch (Exception e) {
            throw new JsonParseException(e);
        }
    }

    @Override
    public JsonElement serialize(Date src, Type typeOfSrc, JsonSerializationContext context) {
        String value = df.format(src);
        return new JsonPrimitive(value);
    }

}