/**
 * 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.users;

import java.util.List;

import org.glite.security.voms.admin.operations.BaseVomsOperation;
import org.glite.security.voms.admin.operations.VOMSContext;
import org.glite.security.voms.admin.operations.VOMSPermission;
import org.glite.security.voms.admin.persistence.dao.VOMSAttributeDAO;
import org.glite.security.voms.admin.persistence.dao.VOMSUserDAO;
import org.glite.security.voms.admin.persistence.model.VOMSUser;

public class FindUsersWithAttribute extends BaseVomsOperation<List<VOMSUser>> {

  public final String attributeName;

  public FindUsersWithAttribute(String attr) {

    attributeName = attr;
  }

  @Override
  protected void setupPermissions() {

    addRequiredPermission(VOMSContext.getVoContext(), 
      VOMSPermission
      .getEmptyPermissions()
      .setAttributesReadPermission()
      .setMembershipReadPermission());

  }

  @Override
  protected List<VOMSUser> doExecute() {

    VOMSAttributeDAO dao = VOMSAttributeDAO.instance();
    return dao.findUsersWithAttribute(attributeName);
  }

}