80 lines
2.1 KiB
Java
80 lines
2.1 KiB
Java
/*
|
|
* 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.persistence.api;
|
|
|
|
import java.text.MessageFormat;
|
|
|
|
import li.strolch.agent.api.ActivityMap;
|
|
import li.strolch.exception.StrolchException;
|
|
import li.strolch.model.activity.Activity;
|
|
import li.strolch.service.api.Command;
|
|
import li.strolch.utils.dbc.DBC;
|
|
|
|
/**
|
|
* @author Robert von Burg <eitch@eitchnet.ch>
|
|
*/
|
|
public class RemoveActivityCommand extends Command {
|
|
|
|
private Activity activity;
|
|
private boolean removed;
|
|
|
|
/**
|
|
* @param tx
|
|
*/
|
|
public RemoveActivityCommand(StrolchTransaction tx) {
|
|
super(tx);
|
|
}
|
|
|
|
/**
|
|
* @param activity
|
|
* the activity to set
|
|
*/
|
|
public void setActivity(Activity activity) {
|
|
this.activity = activity;
|
|
}
|
|
|
|
@Override
|
|
public void validate() {
|
|
DBC.PRE.assertNotNull("Activity may not be null!", this.activity);
|
|
}
|
|
|
|
@Override
|
|
public void doCommand() {
|
|
|
|
tx().lock(this.activity);
|
|
|
|
ActivityMap activityMap = tx().getActivityMap();
|
|
if (!activityMap.hasElement(tx(), this.activity.getType(), this.activity.getId())) {
|
|
String msg = "The Activity {0} can not be removed as it does not exist!";
|
|
msg = MessageFormat.format(msg, this.activity.getLocator());
|
|
throw new StrolchException(msg);
|
|
}
|
|
|
|
activityMap.remove(tx(), this.activity);
|
|
this.removed = true;
|
|
}
|
|
|
|
@Override
|
|
public void undo() {
|
|
if (this.activity != null && tx().isRollingBack() && this.removed) {
|
|
if (tx().isVersioningEnabled())
|
|
tx().getActivityMap().undoVersion(tx(), this.activity);
|
|
else
|
|
tx().getActivityMap().add(tx(), this.activity);
|
|
}
|
|
}
|
|
}
|