/**
* Copyright (C) 2002-2012 The FreeCol Team
*
* This file is part of FreeCol.
*
* FreeCol 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 2 of the License, or
* (at your option) any later version.
*
* FreeCol 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 FreeCol. If not, see <http://www.gnu.org/licenses/>.
*/
package net.sf.freecol.common.networking;
import net.sf.freecol.common.model.Game;
import net.sf.freecol.common.model.Player;
import net.sf.freecol.common.model.UnitType;
import net.sf.freecol.server.FreeColServer;
import net.sf.freecol.server.model.ServerPlayer;
import org.w3c.dom.Element;
/**
* The message sent when training a unit in Europe.
*/
public class TrainUnitInEuropeMessage extends DOMMessage {
/**
* The id of the unit type.
*/
private String typeId;
/**
* Create a new <code>TrainUnitInEuropeMessage</code> with the
* supplied type.
*
* @param type The <code>UnitType</code> to train.
*/
public TrainUnitInEuropeMessage(UnitType type) {
this.typeId = type.getId();
}
/**
* Create a new <code>TrainUnitInEuropeMessage</code> from a
* supplied element.
*
* @param game The <code>Game</code> this message belongs to.
* @param element The <code>Element</code> to use to create the message.
*/
public TrainUnitInEuropeMessage(Game game, Element element) {
this.typeId = element.getAttribute("unitType");
}
/**
* Handle a "trainUnitInEurope"-message.
*
* @param server The <code>FreeColServer</code> handling the message.
* @param player The <code>Player</code> the message applies to.
* @param connection The <code>Connection</code> message was received on.
*
* @return An update containing the trainUnitInEuroped unit,
* or an error <code>Element</code> on failure.
*/
public Element handle(FreeColServer server, Player player,
Connection connection) {
ServerPlayer serverPlayer = server.getPlayer(connection);
UnitType type = server.getSpecification().getUnitType(typeId);
if (type == null) {
return DOMMessage.clientError("Not a unit type: " + typeId);
}
// Proceed to train a unit.
return server.getInGameController()
.trainUnitInEurope(serverPlayer, type);
}
/**
* Convert this TrainUnitInEuropeMessage to XML.
*
* @return The XML representation of this message.
*/
public Element toXMLElement() {
return createMessage(getXMLElementTagName(),
"unitType", typeId);
}
/**
* The tag name of the root element representing this object.
*
* @return "trainUnitInEurope".
*/
public static String getXMLElementTagName() {
return "trainUnitInEurope";
}
}