// 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.network.dao;

import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.List;
import javax.ejb.Local;

import org.apache.log4j.Logger;

import com.cloud.network.PortProfileVO;
import com.cloud.utils.db.DB;
import com.cloud.utils.db.GenericDaoBase;
import com.cloud.utils.db.SearchBuilder;
import com.cloud.utils.db.SearchCriteria;
import com.cloud.utils.db.Transaction;
import com.cloud.utils.db.SearchCriteria.Op;
import com.cloud.utils.exception.CloudRuntimeException;

@Local(value=PortProfileDao.class) @DB(txn=false)
public class PortProfileDaoImpl extends GenericDaoBase<PortProfileVO, Long> implements PortProfileDao {
	protected static final Logger s_logger     = Logger.getLogger(PortProfileDaoImpl.class);
	
    final SearchBuilder<PortProfileVO> nameSearch;
    final SearchBuilder<PortProfileVO> accessVlanSearch;
    
    public PortProfileDaoImpl() {    	
        super();
        
        nameSearch = createSearchBuilder();
        nameSearch.and("portProfileName", nameSearch.entity().getPortProfileName(), Op.EQ);
        nameSearch.done();
        
        accessVlanSearch = createSearchBuilder();
        accessVlanSearch.and("accessVlanId", accessVlanSearch.entity().getAccessVlanId(), Op.EQ);
        accessVlanSearch.done();
    }
    
    public PortProfileVO findByName(String portProfileName) {
    	SearchCriteria<PortProfileVO> sc = nameSearch.create();
    	sc.setParameters("portProfileName", portProfileName);
    	return findOneBy(sc);
    }
    
    @DB
    public boolean doesVlanRangeClash(int lowVlanId, int highVlanId) {
    	String dbName = "cloud";
    	String tableName = "port_profile";
    	String condition = "(trunk_low_vlan_id BETWEEN " + lowVlanId + " AND " + highVlanId + ")" + " OR (trunk_high_vlan_id BETWEEN " + lowVlanId + " AND " + highVlanId + ")";
    	String selectSql = "SELECT * FROM `" + dbName + "`.`" + tableName + "` WHERE " + condition;

        Transaction txn = Transaction.currentTxn();
        try {
            PreparedStatement stmt = txn.prepareAutoCloseStatement(selectSql);
            ResultSet rs = stmt.executeQuery();
            if (rs != null && rs.next()) {
            	// There are records that contain vlans in this range, so return true
            	return true;
            }
        } catch (SQLException ex) {
            throw new CloudRuntimeException("Failed to execute SQL query to check for vlan range clash");
        }
        return false;
    }
    
    public List<PortProfileVO> listByVlanId(int vlanId) {
    	SearchCriteria<PortProfileVO> sc = accessVlanSearch.create();
    	sc.setParameters("accessVlanId", vlanId);
    	return search(sc, null);
    }
    
}