/*
* Aphelion
* Copyright (c) 2013 Joris van der Wel
*
* This file is part of Aphelion
*
* Aphelion is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, version 3 of the License.
*
* Aphelion 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 Affero General Public License
* along with Aphelion. If not, see <http://www.gnu.org/licenses/>.
*
* In addition, the following supplemental terms apply, based on section 7 of
* the GNU Affero General Public License (version 3):
* a) Preservation of all legal notices and author attributions
* b) Prohibition of misrepresentation of the origin of this material, and
* modified versions are required to be marked in reasonable ways as
* different from the original version (for example by appending a copyright notice).
*
* Linking this library statically or dynamically with other modules is making a
* combined work based on this library. Thus, the terms and conditions of the
* GNU Affero General Public License cover the whole combination.
*
* As a special exception, the copyright holders of this library give you
* permission to link this library with independent modules to produce an
* executable, regardless of the license terms of these independent modules,
* and to copy and distribute the resulting executable under terms of your
* choice, provided that you also meet, for each linked independent module,
* the terms and conditions of the license of that module. An independent
* module is a module which is not derived from or based on this library.
*/
package aphelion.shared.physics.operations;
import aphelion.shared.physics.SimpleEnvironment;
import aphelion.shared.physics.State;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
*
* @author Joris
*/
public class LoadConfig extends Operation
{
private static final Logger log = Logger.getLogger("aphelion.shared.physics");
public String fileIdentifier;
public List<Object> yamlDocuments;
private final boolean[] executed;
public LoadConfig(SimpleEnvironment env, OperationKey key)
{
super(env, false, PRIORITY.LOAD_CONFIG, key);
executed = new boolean[env.econfig.TRAILING_STATES];
}
@Override
public boolean execute(State state, boolean late, long ticks_late)
{
// Note: Side effects of config change is not checked for consistency explicitely.
// (Only effects on position and energy are checked at the moment).
// Preferably the server should send these load config operations with a future tick
// so that any inconsistency is minimized.
// For example it is legal to send this operation with a tick that is 10 seconds from now
// Thanks to periodic Actor Syncing any inconsistency caused by late LoadConfig will be resolved eventually.
if (ticks_late == 0)
{
log.log(
Level.INFO,
"Loading {0} yaml documents with file identifier {1} in state {2} ...",
new Object[] {yamlDocuments.size(), fileIdentifier, state.id});
}
else
{
log.log(
Level.WARNING,
"Loading {0} yaml documents with file identifier {1} in state {2} (LATE {3}!) ...",
new Object[] {yamlDocuments.size(), fileIdentifier, state.id, ticks_late});
}
state.config.addFromYaml(yamlDocuments, fileIdentifier);
state.config.applyChanges();
if (this.tick > state.config_lastModification)
{
state.config_lastModification = this.tick;
}
executed[state.id] = true;
return true;
}
@Override
public boolean isConsistent(State older, State newer)
{
if (this.tick > older.tick_now)
{
return true; // This operation has not had the chance to execute on both states (yet)
}
return executed[older.id] == executed[newer.id];
}
@Override
public void resetExecutionHistory(State state, State resetTo, Operation resetToOperation)
{
executed[state.id] = ((LoadConfig) resetToOperation).executed[resetTo.id];
}
@Override
public void placedBackOnTodo(State state)
{
executed[state.id] = false;
}
}