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/*
 * #%L
 * anwiba commons advanced
 * %%
 * Copyright (C) 2007 - 2016 Andreas Bartels
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 2.1 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 General Lesser Public License for more details.
 *
 * You should have received a copy of the GNU General Lesser Public
 * License along with this program.  If not, see
 * .
 * #L%
 */
package net.anwiba.commons.thread.cancel;

import java.util.ArrayList;
import java.util.List;

public class AggregatedCanceler extends Canceler implements IAggregatedCanceler {

  private static final long serialVersionUID = 1L;
  private final List cancelers = new ArrayList<>();

  public AggregatedCanceler(final boolean isEnabled) {
    super(isEnabled);
  }

  @Override
  public void add(final ICanceler canceler) {
    if (canceler == this) {
      throw new IllegalArgumentException();
    }
    synchronized (this.cancelers) {
      this.cancelers.add(canceler);
      canceler.addCancelerListener(new ICancelerListener() {

        @Override
        public void canceled() {
          cancel();
        }
      });
    }
  }

  @Override
  public void cancel() {
    final List list = new ArrayList<>();
    synchronized (this.cancelers) {
      for (final ICanceler canceler : this.cancelers) {
        list.add(canceler);
      }
    }
    super.cancel();
    list.forEach(c -> c.cancel());
  }
}