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package org.activiti.crystalball.simulator;

/* 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.
 */

import org.activiti.engine.runtime.ClockReader;
import org.springframework.beans.factory.FactoryBean;

import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;

/**
 * @author martin.grofcik
 */
public class SimpleEventCalendarFactory implements FactoryBean {

  protected final Collection simulationEvents;
  protected Comparator eventComparator;
  protected final ClockReader clockReader;

  public SimpleEventCalendarFactory(ClockReader clockReader, Comparator eventComparator, Collection simulationEvents) {
    this.clockReader = clockReader;
    this.eventComparator = eventComparator;
    this.simulationEvents = simulationEvents;
  }

  public SimpleEventCalendarFactory(ClockReader clockReader, Comparator eventComparator) {
    this.eventComparator = eventComparator;
    this.clockReader = clockReader;
    this.simulationEvents = Collections.emptyList();
  }

  @Override
  public SimpleEventCalendar getObject() {
    SimpleEventCalendar simpleEventCalendar = new SimpleEventCalendar(clockReader, eventComparator);
    simpleEventCalendar.addEvents(simulationEvents);
    return simpleEventCalendar;
  }

  @Override
  public Class getObjectType() {
    return SimpleEventCalendar.class;
  }

  @Override
  public boolean isSingleton() {
    return false;
  }

}