IncidentUtil.java

/**
 * Licensed to The Apereo Foundation under one or more contributor license
 * agreements. See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership.
 *
 *
 * The Apereo Foundation licenses this file to you under the Educational
 * Community 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://opensource.org/licenses/ecl2.txt
 *
 * 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 org.opencastproject.job.api;

import static org.opencastproject.util.data.Monadics.mlist;

import org.opencastproject.fun.juc.Mutables;
import org.opencastproject.util.data.Function2;

import java.util.List;

public final class IncidentUtil {
  private IncidentUtil() {
  }

  /** Concat a tree of incidents into a list. */
  public static List<Incident> concat(IncidentTree tree) {
    return mlist(tree.getDescendants()).foldl(
            Mutables.list(tree.getIncidents()),
            new Function2<List<Incident>, IncidentTree, List<Incident>>() {
              @Override public List<Incident> apply(List<Incident> sum, IncidentTree tree) {
                sum.addAll(concat(tree));
                return sum;
              }
            });
  }
}