com.appslandia.common.json.DateAdapter.java Source code

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Here is the source code for com.appslandia.common.json.DateAdapter.java

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// The MIT License (MIT)
// Copyright  2015 AppsLandia. 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.appslandia.common.json;

import java.lang.reflect.Type;
import java.text.ParseException;
import java.text.SimpleDateFormat;

import com.appslandia.common.utils.DateUtils;
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;

/**
 * 
 * @author <a href="mailto:haducloc13@gmail.com">Loc Ha</a>
 */
public class DateAdapter implements JsonSerializer<java.util.Date>, JsonDeserializer<java.util.Date> {

    final SimpleDateFormat formatter = DateUtils.newDateFormat(DateUtils.DATE_FORMAT);
    final SimpleDateFormat parser = DateUtils.newDateFormat(DateUtils.DATE_FORMAT);

    final Object fmtMutex = new Object();
    final Object parMutex = new Object();

    @Override
    public JsonElement serialize(java.util.Date src, Type typeOfSrc, JsonSerializationContext context) {
        synchronized (this.fmtMutex) {
            return new JsonPrimitive(this.formatter.format(src));
        }
    }

    @Override
    public java.util.Date deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
            throws JsonParseException {
        synchronized (this.parMutex) {
            try {
                return new java.util.Date(this.parser.parse(json.getAsString()).getTime());
            } catch (ParseException ex) {
                throw new JsonParseException(ex);
            }
        }
    }
}