JsonDate.java

/*
 * Copyright 2010 kk-electronic a/s. 
 * 
 * This file is part of KKPortal.
 *
 * KKPortal is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * KKPortal 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with KKPortal.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

package com.kk_electronic.kkportal.core.rpc.jsonformat;

import java.util.Date;
import java.util.List;

import com.google.gwt.json.client.JSONNumber;
import com.google.gwt.json.client.JSONValue;
import com.kk_electronic.kkportal.core.rpc.FrameEncoder;

/**
 * @author Jes Andersen
 *
 */
public class JsonDate implements JsonValue<Date> {

	@Override
	public Date fromJson(JSONValue jsonValue, List<Class<?>> subtypes,
			FrameEncoder<JSONValue> encoder) throws UnableToDeserialize {
		if (jsonValue.isNull() != null)
			return null;
		if (jsonValue.isNumber() == null)
			throw new UnableToDeserialize("Expected Json Number");
		JSONNumber o = jsonValue.isNumber();
		return new Date((long)(o.doubleValue()));
	}

	/* (non-Javadoc)
	 * @see com.kk_electronic.kkportal.core.rpc.jsonformat.JsonValue#toJson(java.lang.StringBuilder, java.lang.Object, com.kk_electronic.kkportal.core.rpc.FrameEncoder)
	 */
	@Override
	public void toJson(StringBuilder response, Date object,
			FrameEncoder<JSONValue> encoder) throws UnableToSerialize {
		response.append(object.getTime());
	}
}