/**
 * The MIT License
 * Copyright (c) 2014-2016 Ilkka Sepp�l�
 *
 * 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.commander.employeehandle;

import com.iluwatar.commander.Order;
import com.iluwatar.commander.Service;
import com.iluwatar.commander.exceptions.DatabaseUnavailableException;

/**
 * The EmployeeHandle class is the middle-man between {@link Commander} and 
 * {@link EmployeeDatabase}.
 */

public class EmployeeHandle extends Service {

  public EmployeeHandle(EmployeeDatabase db, Exception...exc) {
    super(db, exc);
  }

  public String receiveRequest(Object...parameters) throws DatabaseUnavailableException {
    return updateDb((Order)parameters[0]);
  }

  protected String updateDb(Object...parameters) throws DatabaseUnavailableException {
    Order o = (Order) parameters[0];
    if (database.get(o.id) == null) {
      database.add(o);
      return o.id; //true rcvd - change addedToEmployeeHandle to true else dont do anything
    }
    return null;
  }

}
