TaskSet.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2022 Lluis Turró Cutiller <http://www.turro.org/>
 *
 * This program 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, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
package org.turro.scheduler.task;
 
import java.io.IOException;
import java.util.Collections;
import java.util.Set;
import java.util.TreeSet;
import java.util.stream.Collectors;
import org.turro.elephant.context.IConstructor;
import org.turro.log.WebLoggers;
import org.turro.scheduler.task.settings.TaskSettings;
import org.turro.scheduler.task.settings.TaskSettingsSet;
 
public class TaskSet extends TreeSet<AbstractTask> {
 
  /* Factory */
  
  private static final Set<AbstractTask> tasks = Collections.synchronizedSet(new TaskSet());
  
  public static Set<AbstractTask> load(IConstructor constructor) {
    try {
      tasks.clear();
      TaskSettingsSet set = TaskSettingsSet.load();
      for(TaskSettings settings : set) {
        AbstractTask task = settings.build(constructor);
        if(task != null) {
          tasks.add(task);
        }
      }
      return tasks;
    } catch (IOException ex) {
      WebLoggers.severe(TaskSet.class).exception(ex).log();
    }
    return Collections.EMPTY_SET;
  }
  
  public static void save(Set<AbstractTask> tasks) {
    try {
      TaskSettingsSet settings = tasks.stream()
              .filter(t -> !t.isSystem())
              .map(t -> t.getSettings())
              .collect(Collectors.toCollection(TaskSettingsSet::new));
      settings.save();
    } catch (IOException ex) {
      WebLoggers.severe(TaskSet.class).exception(ex).log();
    }
  }
  
}