com.indragie.cmput301as1.DateJSONDeserializer.java Source code

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Here is the source code for com.indragie.cmput301as1.DateJSONDeserializer.java

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/* 
 * Copyright (C) 2015 Indragie Karunaratne
 * 
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *  
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.indragie.cmput301as1;

import java.lang.reflect.Type;
import java.util.Date;

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;

/**
 * Deserializes {@link Date} objects from JSON.
 */
public class DateJSONDeserializer implements JsonDeserializer<Date> {

    /* (non-Javadoc)
     * @see com.google.gson.JsonDeserializer#deserialize(com.google.gson.JsonElement, java.lang.reflect.Type, com.google.gson.JsonDeserializationContext)
     */
    @Override
    public Date deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
            throws JsonParseException {
        if (json.isJsonPrimitive()) {
            JsonPrimitive primitive = json.getAsJsonPrimitive();
            if (primitive.isNumber()) {
                return new Date(primitive.getAsLong());
            }
        }
        return null;
    }
}