package org.jallinone.system.scheduler.server;
import java.util.ArrayList;
import org.jallinone.system.importdata.server.LoadETLProcessesBean;
import java.sql.Connection;
import org.openswing.swing.server.ConnectionManager;
import org.openswing.swing.message.send.java.GridParams;
import org.openswing.swing.message.receive.java.Response;
import org.openswing.swing.logger.server.Logger;
import org.openswing.swing.message.receive.java.VOListResponse;
import org.jallinone.system.importdata.java.ETLProcessVO;
import org.jallinone.commons.java.ApplicationConsts;
/**
* <p>Title: JAllInOne ERP/CRM application</p>
* <p>Description: Singleton class used to scheduling ETL processes.</p>
* <p>Copyright: Copyright (C) 2006 Mauro Carniel</p>
*
* <p> This file is part of JAllInOne ERP/CRM application.
* This application is free software; you can redistribute it and/or
* modify it under the terms of the (LGPL) Lesser General Public
* License as published by the Free Software Foundation;
*
* GNU LESSER GENERAL PUBLIC LICENSE
* Version 2.1, February 1999
*
* This application 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* The author may be contacted at:
* maurocarniel@tin.it</p>
*
* @author Mauro Carniel
* @version 1.0
*/
public class ETLProcessesScheduler {
/** unique instance of this class */
private static ETLProcessesScheduler instance = null;
/** list of sscheduled ETL processes */
private ArrayList scheduledProcesses = new ArrayList();
private LoadETLProcessesBean bean = new LoadETLProcessesBean();
public static ETLProcessesScheduler getInstance() {
if (instance==null)
instance = new ETLProcessesScheduler();
return instance;
}
private ETLProcessesScheduler() { }
/**
* Restart all ETL processes.
*/
public void restartProcesses() {
synchronized(scheduledProcesses) {
removeAllProcesses();
Connection conn = null;
try {
conn = ConnectionManager.getConnection(null);
bean.setConn(conn);
GridParams gridParams = new GridParams();
Response answer = bean.loadETLProcesses(gridParams,"",null);
if (!answer.isError()) {
java.util.List list = ((VOListResponse)answer).getRows();
ETLProcessVO vo = null;
for(int i=0;i<list.size();i++) {
vo = (ETLProcessVO)list.get(i);
if (!vo.getSchedulingTypeSYS23().equals(ApplicationConsts.SCHEDULING_TYPE_NO_SCHED)) {
scheduledProcesses.add(new ETLProcessThread(vo));
}
}
}
}
catch (Throwable ex) {
Logger.error(null,this.getClass().getName(),"restartProcesses","Error while fetching ETL processes list",ex);
return;
}
finally {
try {
ConnectionManager.releaseConnection(conn, null);
}
catch (Exception ex1) {
}
}
}
}
/**
* Stop all ETL processes.
*/
public void stopProcesses() {
synchronized(scheduledProcesses) {
removeAllProcesses();
}
}
/**
* Remove all ETL processes.
*/
private void removeAllProcesses() {
ETLProcessThread t = null;
while(scheduledProcesses.size()>0) {
t = (ETLProcessThread )scheduledProcesses.remove(0);
t.interrupt();
}
}
}