/*
* NBARCollectorDAO.java
*
* Created on 28 June 2008, 01:28
*
* AsItHappens - real-time network monitor
* Copyright (C) 2006 Mark Abrahams
*
* This program 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 2 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.
*
*/
package nz.co.abrahams.asithappens.nbar;
import nz.co.abrahams.asithappens.storage.DeviceDAO;
import nz.co.abrahams.asithappens.storage.Device;
import nz.co.abrahams.asithappens.collectors.DataCollector;
import nz.co.abrahams.asithappens.collectors.DataCollectorDAO;
import nz.co.abrahams.asithappens.core.DAOFactory;
import nz.co.abrahams.asithappens.snmputil.PortsSelectorSNMP;
import nz.co.abrahams.asithappens.snmputil.SNMPException;
import nz.co.abrahams.asithappens.core.DBUtil;
import nz.co.abrahams.asithappens.core.DBException;
import java.sql.Connection;
//import java.sql.Statement;
import java.sql.PreparedStatement;
//import java.sql.ResultSet;
import java.sql.SQLException;
import java.net.UnknownHostException;
//import java.util.Vector;
import org.apache.log4j.Logger;
/**
*
* @author mark
*/
public class NBARCollectorDAO implements DataCollectorDAO {
/** Collector creation SQL statement */
public static final String CREATE = "INSERT INTO NbarCollectors (sessionID, device, pollInterval, ifDescr, direction, tableSize) VALUES (?,?,?,?,?,?)";
/** Device retrieval SQL statement */
public static final String RETRIEVE_DEVICE = "SELECT device FROM NbarCollectors WHERE sessionID = ?";
/** Polling interval retrieval SQL statement */
public static final String RETRIEVE_POLLINTERVAL = "SELECT pollInterval FROM NbarCollectors WHERE sessionID = ?";
/** Table size retrieval SQL statement */
public static final String RETRIEVE_IFDESCR = "SELECT ifDescr FROM NbarCollectors WHERE sessionID = ?";
/** Table size retrieval SQL statement */
public static final String RETRIEVE_DIRECTION = "SELECT direction FROM NbarCollectors WHERE sessionID = ?";
/** Table size retrieval SQL statement */
public static final String RETRIEVE_TABLESIZE = "SELECT tableSize FROM NbarCollectors WHERE sessionID = ?";
/** Logging provider */
public static Logger logger = Logger.getLogger(NBARCollectorDAO.class);
/** Database connection */
Connection connection;
/** Creates a new NBARCollector DAO */
public NBARCollectorDAO(Connection connection) {
this.connection = connection;
}
/**
* Creates a NBARCollector in the database.
*
* @param sessionID the session ID that the collector belongs to
* @param dataCollector the collector to create in the database
*/
public void create(int sessionID, DataCollector dataCollector) throws DBException {
NBARCollector collector;
PreparedStatement statement;
int deviceID;
collector = (NBARCollector)dataCollector;
try {
statement = connection.prepareStatement(CREATE);
statement.setInt(1, sessionID);
statement.setString(2, collector.getDevice().getName());
statement.setLong(3, collector.getPollInterval());
statement.setString(4, collector.getIfDescr());
statement.setInt(5, collector.getDirection());
statement.setInt(6, collector.getTableSize());
statement.executeUpdate();
statement.close();
} catch (SQLException e) {
logger.error("Problem creating NBARCollector in database for session " + sessionID);
throw new DBException("Problem creating NBARCollector in database for session " + sessionID, e);
}
}
/**
* Retrieves a NBARCollector defintion from the database.
*
* @param sessionID the session ID of the collector
* @return the collector created from the database definition
*/
public NBARCollector retrieve(int sessionID) throws DBException, UnknownHostException, SNMPException {
DeviceDAO deviceDAO;
String name;
Device device;
PortsSelectorSNMP portsSNMP;
NBARSNMP nbarSNMP;
long pollInterval;
int ifIndex;
String ifDescr;
int direction;
int tableSize;
name = (String)(DBUtil.retrieveSingleAttributeWithPK(connection, RETRIEVE_DEVICE, sessionID));
deviceDAO = DAOFactory.getDeviceDAO();
device = deviceDAO.retrieveDevice(name, true);
deviceDAO.closeConnection();
pollInterval = ((Long)(DBUtil.retrieveSingleAttributeWithPK(connection, RETRIEVE_POLLINTERVAL, sessionID))).longValue();
ifDescr = (String)(DBUtil.retrieveSingleAttributeWithPK(connection, RETRIEVE_IFDESCR, sessionID));
direction = ((Integer)(DBUtil.retrieveSingleAttributeWithPK(connection, RETRIEVE_DIRECTION, sessionID))).intValue();
tableSize = ((Integer)(DBUtil.retrieveSingleAttributeWithPK(connection, RETRIEVE_TABLESIZE, sessionID))).intValue();
portsSNMP = new PortsSelectorSNMP(device);
/*
device.enumeratePorts();
ifIndex = -1;
for ( int i = 0 ; i < device.getPortsIndex().length ; i++ ) {
if ( device.getPortsDescr()[i].equals(ifDescr) ) {
ifIndex = device.getPortsIndex()[i];
}
}
*/
ifIndex = portsSNMP.getIfIndex(ifDescr);
nbarSNMP = new NBARSNMP(device);
return new NBARCollector(nbarSNMP, pollInterval, ifIndex, ifDescr, direction, tableSize);
}
/**
* Closes database connection opened for this DAO.
*/
public void closeConnection() throws DBException {
try {
connection.close();
} catch (SQLException e) {
logger.error("Error closing database connection for NBARCollector DAO");
throw new DBException("Error closing database connection for NBARCollector DAO", e);
}
}
}