/**
 * Copyright (c) Istituto Nazionale di Fisica Nucleare (INFN). 2006-2016
 *
 * 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.glite.security.voms.admin.operations.roles;

import org.glite.security.voms.admin.operations.BaseVoReadOperation;
import org.glite.security.voms.admin.persistence.dao.VOMSRoleDAO;

public class FindRoleOperation extends BaseVoReadOperation {

  Long id;

  String name;

  private FindRoleOperation(Long id) {

    this.id = id;

  }

  private FindRoleOperation(String name) {

    this.name = name;
  }

  protected Object doExecute() {

    VOMSRoleDAO dao = VOMSRoleDAO.instance();

    if (name != null)
      return dao.findByName(name);

    return dao.findById(id);
  }

  public static FindRoleOperation instance(Long id) {

    return new FindRoleOperation(id);
  }

  public static FindRoleOperation instance(String name) {

    return new FindRoleOperation(name);
  }
}