dao.TagsQuery.java Source code

Introduction

Here is the source code for dao.TagsQuery.java

Source

/**
* Copyright (c) 2001-2012 "Redbasin Networks, INC" [http://redbasin.org]
*
* This file is part of Redbasin OpenDocShare community project.
*
* Redbasin OpenDocShare is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/

package dao;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.ArrayList;
import java.util.List;
import java.util.Vector;
import model.Yourkeywords;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import util.DbConstants;

/**
  * This class is used by spring to populate a <code>folksonomy</code> bean.
  * This class implements TagsQuery
  *
  * @author Smitha Gudur (smitha@redbasin.com)
  * @version $Revision: 1.1 $
  */
class TagsQuery extends BasicDirectQuery {

    protected final Log logger = LogFactory.getLog(getClass());

    public List run(Connection conn, int numTags) throws BaseDaoException {

        ResultSet rs = null;
        String sqlQuery = "select * from tags order by hits DESC limit " + numTags + "";
        //logger.info("sqlQuery = " + sqlQuery);

        try {
            PreparedStatement stmt = conn.prepareStatement(sqlQuery);
            rs = stmt.executeQuery();

            Vector columnNames = null;
            Yourkeywords tag = null;
            List tagList = new ArrayList();

            if (rs != null) {
                columnNames = dbutils.getColumnNames(rs);
            } else {
                return null;
            }

            while (rs.next()) {
                tag = (Yourkeywords) eop.newObject(DbConstants.YOURKEYWORDS);
                for (int j = 0; j < columnNames.size(); j++) {
                    tag.setValue((String) columnNames.elementAt(j),
                            (String) rs.getString((String) columnNames.elementAt(j)));
                }
                tagList.add(tag);
            }
            return tagList;
        } catch (Exception e) {
            logger.warn("Error occured while executing tagsQuery run query" + sqlQuery, e);
            throw new BaseDaoException("Error occured while executing tagsQuery run query " + sqlQuery, e);
        }
    }
}