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daigle
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/**
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* '$RCSfile$'
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* Purpose: A Class that manages database access of scheduled task
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* information.
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* Copyright: 2009 Regents of the University of California and the
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* National Center for Ecological Analysis and Synthesis
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* Authors: Michael Daigle
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*
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* '$Author: daigle $'
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* '$Date: 2009-03-23 13:56:56 -0800 (Mon, 23 Mar 2009) $'
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* '$Revision: 4854 $'
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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package edu.ucsb.nceas.metacat.scheduler;
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import java.sql.PreparedStatement;
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import java.sql.ResultSet;
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import java.sql.SQLException;
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import java.sql.Timestamp;
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import java.util.Calendar;
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import java.util.Hashtable;
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import org.apache.log4j.Logger;
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import org.quartz.Job;
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import edu.ucsb.nceas.shared.AccessException;
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import edu.ucsb.nceas.shared.BaseAccess;
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public class ScheduledJobAccess extends BaseAccess {
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private Logger logMetacat = Logger.getLogger(ScheduledJobAccess.class);
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public ScheduledJobAccess() throws AccessException {
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super("ScheduledJobAccess");
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}
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public ScheduledJobDAO getJobByName(String jobName) throws AccessException {
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ScheduledJobDAO jobDAO = null;
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try {
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String sql = "SELECT * FROM scheduled_job WHERE name = ? ";
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PreparedStatement pstmt = conn.prepareStatement(sql);
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pstmt.setString(1, jobName);
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logMetacat.info("SQL getJobByName - " + sql);
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logMetacat.info("SQL params: [" + jobName + "]");
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pstmt.execute();
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ResultSet resultSet = pstmt.getResultSet();
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if(resultSet.next()) {
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jobDAO = new ScheduledJobDAO();
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jobDAO.setId(resultSet.getLong("id"));
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jobDAO.setCreateTime(resultSet.getTimestamp("date_created"));
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jobDAO.setModTime(resultSet.getTimestamp("date_updated"));
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jobDAO.setStatus(resultSet.getString("status"));
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jobDAO.setName(resultSet.getString("name"));
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jobDAO.setTriggerName(resultSet.getString("trigger_name"));
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jobDAO.setTriggerName(resultSet.getString("group_name"));
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jobDAO.setClassName(resultSet.getString("class_name"));
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jobDAO.setStartTime(resultSet.getTimestamp("start_time"));
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jobDAO.setInterval(resultSet.getInt("interval"));
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}
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} catch (SQLException sqle) {
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throw new AccessException("ScheduledJobAccess.getJobByName - SQL error when getting scheduled job by name: "
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+ jobName + " : " + sqle.getMessage());
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}
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return jobDAO;
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}
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public void createJob(String name, Class<Job> jobClass, Calendar startTime, int interval, Hashtable<String, String> jobParams) throws AccessException {
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ScheduledJobDAO jobDAO = new ScheduledJobDAO();
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jobDAO.setStatus(ScheduledJobInterface.STATE_SCHEDULED);
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jobDAO.setName(name);
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jobDAO.setClassName(jobClass.getName());
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jobDAO.setStartTime(new Timestamp(startTime.getTimeInMillis()));
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jobDAO.setInterval(interval);
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createJob(jobDAO, jobParams);
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}
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public void createJob(ScheduledJobDAO jobDAO, Hashtable<String, String> jobParams) throws AccessException {
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try {
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String sql =
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"INSERT INTO scheduled_job (date_created, date_updated, status, name, class_name, start_time, interval) "
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+ "VALUES(now(), now(), ?, ?, ?, ?, ?)";
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PreparedStatement pstmt = conn.prepareStatement(sql);
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pstmt.setString(1, jobDAO.getStatus());
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pstmt.setString(2, jobDAO.getName());
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pstmt.setString(3, jobDAO.getClassName());
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pstmt.setTimestamp(4, jobDAO.getStartTime());
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pstmt.setInt(5, jobDAO.getInterval());
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logMetacat.info("SQL createJob - " + sql);
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logMetacat.info("SQL params: [" + jobDAO.getStatus() + ","
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+ jobDAO.getName() + ","
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+ jobDAO.getClassName() + ",(Timestamp)"
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+ jobDAO.getStartTime().toString() + ","
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+ jobDAO.getInterval() + "]");
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pstmt.execute();
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} catch (SQLException sqle) {
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throw new AccessException("ScheduledJobAccess.createJob - SQL error when creating scheduled job "
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+ jobDAO.getName() + " : " + sqle.getMessage());
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}
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if (jobParams.size() > 0) {
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ScheduledJobParamsAccess scheduledJobParamsAccess = null;
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ScheduledJobDAO updatedJobDAO = null;
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try {
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updatedJobDAO = getJobByName(jobDAO.getName());
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scheduledJobParamsAccess = new ScheduledJobParamsAccess();
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scheduledJobParamsAccess.createJobParams(updatedJobDAO.getId(), jobParams);
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} catch (AccessException ae) {
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if (updatedJobDAO != null) {
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deleteJob(updatedJobDAO);
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scheduledJobParamsAccess.deleteJobParams(updatedJobDAO.getId());
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} else {
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logMetacat.warn("ScheduledJobAccess.createJob - Tried to delete non-existant scheduled job: "
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+ jobDAO.getName());
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}
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}
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}
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}
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public void deleteJob(ScheduledJobDAO jobDAO) throws AccessException {
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ScheduledJobParamsAccess scheduledJobParamsAccess = new ScheduledJobParamsAccess();
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if (jobDAO == null) {
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throw new AccessException("ScheduledJobAccess.deleteJob - job DAO cannot be null.");
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}
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scheduledJobParamsAccess.deleteJobParams(jobDAO.getId());
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try {
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String sql = "UPDATE scheduled_job SET status = ? WHERE id = ?";
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pstmt.setString(1, ScheduledJobInterface.STATE_DELETED);
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pstmt.setLong(2, jobDAO.getId());
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logMetacat.info("ScheduledJobAccess.deleteJob - " + sql);
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logMetacat.info("SQL params: [" + ScheduledJobInterface.STATE_DELETED + ","
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+ jobDAO.getId() + "]");
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pstmt.execute();
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} catch (SQLException sqle) {
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throw new AccessException("ScheduledJobAccess.deleteJob - SQL error when "
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+ "deleting scheduled job " + jobDAO.getName() + " : " + sqle.getMessage());
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}
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}
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public void updateJobStatus(ScheduledJobDAO jobDAO) throws AccessException {
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if (jobDAO == null) {
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throw new AccessException("ScheduledJobAccess.updateJobStatus - job DAO cannot be null.");
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}
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try {
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String sql = "UPDATE scheduled_job SET status = ? WHERE id = ?";
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pstmt.setString(1, jobDAO.getStatus());
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pstmt.setLong(2, jobDAO.getId());
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logMetacat.info("ScheduledJobAccess.deleteJob - " + sql);
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logMetacat.info("SQL params: [" + jobDAO.getStatus() + ","
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+ jobDAO.getId() + "]");
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pstmt.execute();
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} catch (SQLException sqle) {
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throw new AccessException("ScheduledJobAccess.deleteJob - SQL error when "
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+ "deleting scheduled job " + jobDAO.getName() + " : " + sqle.getMessage());
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}
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}
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}
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