content: /*
   * Copyright 2010-2025 Hyland Software, Inc. and its affiliates.
   *
   * Licensed under the Apache 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://www.apache.org/licenses/LICENSE-2.0
   *
   * 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.activiti.engine.impl.calendar;
  
  import java.util.Calendar;
  import java.util.Date;
  import java.util.TimeZone;
  import org.activiti.engine.ActivitiException;
  import org.activiti.engine.api.internal.Internal;
  import org.activiti.engine.runtime.ClockReader;
  
  /**
   * Resolves a due date taking into account the specified time zone.
   *
   */
  @Internal
  public class AdvancedSchedulerResolverWithTimeZone implements AdvancedSchedulerResolver {
  
      @Override
      public Date resolve(String duedateDescription, ClockReader clockReader, TimeZone timeZone) {
          Calendar nextRun = null;
  
          try {
              if (duedateDescription.startsWith("R")) {
                  nextRun = new DurationHelper(duedateDescription, clockReader).getCalendarAfter(
                      clockReader.getCurrentCalendar(timeZone)
                  );
              } else {
                  nextRun = new CronExpression(duedateDescription, clockReader, timeZone).getTimeAfter(
                      clockReader.getCurrentCalendar(timeZone)
                  );
              }
          } catch (Exception e) {
              throw new ActivitiException("Failed to parse scheduler expression: " + duedateDescription, e);
          }
  
          return nextRun == null ? null : nextRun.getTime();
      }
  }
  