/*
 * ToroDB
 * Copyright © 2014 8Kdata Technology (www.8kdata.com)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

package com.torodb.mongodb.repl.oplogreplier;

import com.eightkdata.mongowp.server.api.oplog.OplogOperation;

import java.util.Collections;
import java.util.List;

/**
 *
 */
public class FinishedOplogBatch implements OplogBatch {

  private FinishedOplogBatch() {
  }

  public static FinishedOplogBatch getInstance() {
    return FinishedOplogBatchHolder.INSTANCE;
  }

  @Override
  public List<OplogOperation> getOps() {
    return Collections.emptyList();
  }

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

  @Override
  public boolean isLastOne() {
    return true;
  }

  private static class FinishedOplogBatchHolder {

    private static final FinishedOplogBatch INSTANCE = new FinishedOplogBatch();
  }

  //@edu.umd.cs.findbugs.annotations.SuppressFBWarnings(value = "UPM_UNCALLED_PRIVATE_METHOD")
  private Object readResolve() {
    return FinishedOplogBatch.getInstance();
  }
}