dao.CollSearchQuery.java Source code

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Here is the source code for dao.CollSearchQuery.java

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/**
* 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.HashSet;
import java.util.Vector;
import model.Collabrum;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import util.DbConstants;
import util.MysqlSearch;
import util.RegexStrUtil;

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

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

    /**
     * This method lists all the results for the search text
     * @param conn the connection
     * @param collabrumId the collabrumid
     * @return HashSet the set that has the list of moderators for these collabrums.
     * @throws BaseDaoException - when error occurs
     **/
    public HashSet run(Connection conn, String stext) throws BaseDaoException {

        if ((RegexStrUtil.isNull(stext) || conn == null)) {
            return null;
        }

        ResultSet rs = null;
        StringBuffer sb = new StringBuffer(
                "select distinct collabrumid, name, LEFT(coldesc, 160) as info, hits from collabrum where ");

        ArrayList columns = new ArrayList();
        columns.add("coldesc");
        columns.add("name");
        columns.add("keywords");
        sb.append(sqlSearch.getConstraint(columns, stext));
        sb.append(" order by hits DESC");

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

            Vector columnNames = null;
            Collabrum collabrum = null;
            HashSet pendingSet = new HashSet();

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

            while (rs.next()) {
                collabrum = (Collabrum) eop.newObject(DbConstants.COLLABRUM);
                for (int j = 0; j < columnNames.size(); j++) {
                    collabrum.setValue((String) columnNames.elementAt(j),
                            (String) rs.getString((String) columnNames.elementAt(j)));
                }
                pendingSet.add(collabrum);
            }
            return pendingSet;
        } catch (Exception e) {
            throw new BaseDaoException("Error occured while executing search in collabrum run query ", e);
        }
    }

    /**
     *  This method is called by spring.
     * @param dbutils
     */
    public void setmysqlSearch(MysqlSearch mysqlSearch) {
        this.sqlSearch = mysqlSearch;
    }

}