/*
* Copyright 2013 Robert von Burg <eitch@eitchnet.ch>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package li.strolch.command;
import java.text.MessageFormat;
import li.strolch.agent.api.ComponentContainer;
import li.strolch.agent.api.OrderMap;
import li.strolch.exception.StrolchException;
import li.strolch.model.Order;
import li.strolch.persistence.api.StrolchTransaction;
import li.strolch.service.api.Command;
import li.strolch.utils.dbc.DBC;
/**
* @author Robert von Burg <eitch@eitchnet.ch>
*/
public class RemoveOrderCommand extends Command {
private Order order;
/**
* @param tx
*/
public RemoveOrderCommand(ComponentContainer container, StrolchTransaction tx) {
super(container, tx);
}
/**
* @param order
* the order to set
*/
public void setOrder(Order order) {
this.order = order;
}
@Override
public void validate() {
DBC.PRE.assertNotNull("Order may not be null!", this.order);
}
@Override
public void doCommand() {
tx().lock(this.order);
OrderMap orderMap = tx().getOrderMap();
if (!orderMap.hasElement(tx(), this.order.getType(), this.order.getId())) {
String msg = "The Order {0} can not be removed as it does not exist!";
msg = MessageFormat.format(msg, this.order.getLocator());
throw new StrolchException(msg);
}
orderMap.remove(tx(), this.order);
}
@Override
public void undo() {
if (this.order != null && tx().isRollingBack()) {
OrderMap orderMap = tx().getOrderMap();
if (!orderMap.hasElement(tx(), this.order.getType(), this.order.getId()))
orderMap.add(tx(), this.order);
}
}
}