// Copyright 2012 Citrix Systems, Inc. Licensed under the
// Apache License, Version 2.0 (the "License"); you may not use this
// file except in compliance with the License.  Citrix Systems, Inc.
// reserves all rights not expressly granted by 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.
// 
// Automatically generated by addcopyright.py at 04/03/2012
package com.cloud.storage.dao;

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

import javax.ejb.Local;

import org.apache.log4j.Logger;

import com.cloud.agent.api.to.SwiftTO;
import com.cloud.storage.SwiftVO;
import com.cloud.utils.db.GenericDaoBase;

/**
 * 
 * 
 */

@Local (value={SwiftDao.class})
public class SwiftDaoImpl extends GenericDaoBase<SwiftVO, Long> implements SwiftDao {
    public static final Logger s_logger = Logger.getLogger(SwiftDaoImpl.class.getName());

    @Override
    public SwiftTO getSwiftTO(Long swiftId) {
        if (swiftId != null) {
            SwiftVO swift = findById(swiftId);
            if (swift != null) {
                return swift.toSwiftTO();
            }
            return null;
        }

        List<SwiftVO> swiftVOs = listAll();
        if (swiftVOs == null || swiftVOs.size() < 1) {
            return null;
        } else {
            Collections.shuffle(swiftVOs);
            return swiftVOs.get(0).toSwiftTO();
        }
    }
}