/**
 * The MIT License
 * Copyright (c) 2014 Ilkka Seppälä
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package com.iluwatar.event.sourcing.processor;

import com.iluwatar.event.sourcing.event.DomainEvent;

/**
 * This is the implementation of event processor.
 * All events are processed by this class.
 * This processor uses processorJournal to persist and recover events.
 *
 * Created by Serdar Hamzaogullari on 06.08.2017.
 */
public class DomainEventProcessor {

  private final JsonFileJournal processorJournal = new JsonFileJournal();

  /**
   * Process.
   *
   * @param domainEvent the domain event
   */
  public void process(DomainEvent domainEvent) {
    domainEvent.process();
    processorJournal.write(domainEvent);
  }

  /**
   * Reset.
   */
  public void reset() {
    processorJournal.reset();
  }

  /**
   * Recover.
   */
  public void recover() {
    DomainEvent domainEvent;
    while (true) {
      domainEvent = processorJournal.readNext();
      if (domainEvent == null) {
        break;
      } else {
        domainEvent.process();
      }
    }
  }
}
