TaskHelper.java

/////////////////////////////////////////////////////////////////////////////
//
// Project ProjectForge Community Edition
//         www.projectforge.org
//
// Copyright (C) 2001-2014 Kai Reinhard (k.reinhard@micromata.de)
//
// ProjectForge is dual-licensed.
//
// This community edition is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as published
// by the Free Software Foundation; version 3 of the License.
//
// This community edition 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 General Public License along
// with this program; if not, see http://www.gnu.org/licenses/.
//
/////////////////////////////////////////////////////////////////////////////

package org.projectforge.task;

import org.apache.commons.lang.StringUtils;
import org.projectforge.common.StringHelper;
import org.projectforge.fibu.ProjektDO;
import org.projectforge.fibu.kost.Kost2DO;


/**
 * 
 * @author Kai Reinhard (k.reinhard@micromata.de)
 * 
 */
public class TaskHelper
{
  /**
   * Removes all white spaces and normalizes the item list (csv with coma as separator char without any spaces) and sort. Examples:
   * <ul>
   * <li>null -> null</li>
   * <li>"" -> ""</li>
   * <li>"5.123.13.09.02; 08, .12" -> ".12,08,5.123.13.09.02"</li>
   * </ul>
   * @param task
   * @return The normalized sorted string.
   */
  public static String normalizeKost2BlackWhiteList(final TaskDO task)
  {
    return normalizeKost2BlackWhiteList(task.getKost2BlackWhiteList());
  }

  /**
   * Removes all white spaces and normalizes the item list (csv with coma as separator char without any spaces) and sort. Examples:
   * <ul>
   * <li>null -> null</li>
   * <li>"" -> ""</li>
   * <li>"5.123.13.09.02; 08, .12" -> ".12,08,5.123.13.09.02"</li>
   * </ul>
   * @param task
   * @return The normalized sorted string.
   */
  public static String normalizeKost2BlackWhiteList(final String kost2BlackWhiteList)
  {
    final String[] items = TaskDO.getKost2BlackWhiteItems(kost2BlackWhiteList);
    final String[] sortedItems = StringHelper.sortAndUnique(items);
    return StringHelper.listToString(",", sortedItems);
  }

  /**
   * Adds the given kost to the kost2BlackWhiteList string and returns the normalized string.
   * @param taskTree
   * @param task
   * @param kost
   * @return
   * @see #normalizeKost2BlackWhiteList(String)
   */
  public static String addKost2(final TaskTree taskTree, final TaskDO task, final Kost2DO kost)
  {
    if (kost == null) {
      return task.getKost2BlackWhiteList();
    }
    final StringBuffer buf = new StringBuffer();
    if (StringUtils.isNotBlank(task.getKost2BlackWhiteList()) == true) {
      buf.append(task.getKost2BlackWhiteList()).append(",");
    }
    if (task.getId() == null && task.getParentTaskId() != null) {
      buf.append(kost.getFormattedNumber());
    } else {
      final ProjektDO projekt = task.getId() != null ? taskTree.getProjekt(task.getId()) : taskTree.getProjekt(task.getParentTaskId());
      if (projekt == null) {
        buf.append(kost.getFormattedNumber());
      } else {
        final String projektKost2 = projekt.getKost();
        final String kost2 = kost.getFormattedNumber();
        if (kost2.startsWith(projektKost2) == false) {
          buf.append(kost.getFormattedNumber());
        } else {
          buf.append(StringHelper.format2DigitNumber(kost.getKost2ArtId()));
        }
      }
    }
    return normalizeKost2BlackWhiteList(buf.toString());
  }
}