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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.HashMap;
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import java.util.Vector;
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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.metacat.database.DBConnectionPool;
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import edu.ucsb.nceas.metacat.shared.AccessException;
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import edu.ucsb.nceas.metacat.shared.BaseAccess;
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import edu.ucsb.nceas.utilities.StatusUtil;
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public class ScheduledJobAccess extends BaseAccess {
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private Logger logMetacat = Logger.getLogger(ScheduledJobAccess.class);
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// Constructor
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public ScheduledJobAccess() throws AccessException {
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super("ScheduledJobAccess");
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}
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/**
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* Get a job based on it's id
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*
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* @param jobId
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* the id of the job in the database
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* @return the scheduled job data object that represents the desired job
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*/
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public ScheduledJobDAO getJob(Long jobId) throws AccessException {
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ScheduledJobDAO jobDAO = null;
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// first get the job from the db and put it into a DAO
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PreparedStatement pstmt = null;
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try {
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String sql = "SELECT * FROM scheduled_job WHERE id = ? AND status != 'deleted'";
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pstmt = conn.prepareStatement(sql);
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pstmt.setLong(1, jobId);
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logMetacat.info("SQL getJobByName - " + sql);
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logMetacat.info("SQL params: [" + jobId + "]");
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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 = populateDAO(resultSet);
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}
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} catch (SQLException sqle) {
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throw new AccessException("ScheduledJobAccess.getJob - SQL error when getting scheduled job: "
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+ jobId + " : " + sqle.getMessage());
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} finally {
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try {
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if (pstmt != null) {
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pstmt.close();
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}
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} catch (SQLException sqle) {
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logMetacat.error("ScheduledJobAccess.getJobByName - An error occurred "
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+ "closing prepared statement: " + sqle.getMessage());
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}
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}
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// Now get all the job parameters and put those into a list of job parameter
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// DAOs and add that list to the job DAO
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ScheduledJobParamAccess jobParamAccess = new ScheduledJobParamAccess();
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Vector<ScheduledJobParamDAO> jobParamList =
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jobParamAccess.getJobParamsForJobId(jobDAO.getId());
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for(ScheduledJobParamDAO jobParamDAO : jobParamList) {
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jobDAO.addJobParam(jobParamDAO);
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}
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return jobDAO;
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}
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/**
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* Get a job by it's name
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* @param jobName the name of the job to get
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* @return the scheduled job data object that represents the desired job
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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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// first get the job from the db and put it into a DAO
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PreparedStatement pstmt = null;
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try {
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String sql = "SELECT * FROM scheduled_job WHERE name = ? AND status != 'deleted'";
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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 = populateDAO(resultSet);
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} else {
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throw new AccessException("ScheduledJobAccess.getJobByName - could not find scheduled job with name: "
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+ jobName);
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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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} finally {
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try {
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if (pstmt != null) {
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pstmt.close();
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}
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} catch (SQLException sqle) {
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logMetacat.error("ScheduledJobAccess.getJobByName - An error occurred "
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+ "closing prepared statement: " + sqle.getMessage());
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}
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}
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// Now get all the job parameters and put those into a list of job parameter
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// DAOs and add that list to the job DAO
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ScheduledJobParamAccess jobParamAccess = new ScheduledJobParamAccess();
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Vector<ScheduledJobParamDAO> jobParamList =
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jobParamAccess.getJobParamsForJobId(jobDAO.getId());
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for(ScheduledJobParamDAO jobParamDAO : jobParamList) {
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jobDAO.addJobParam(jobParamDAO);
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}
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return jobDAO;
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}
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/**
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* Get all jobs that have a given parameter with a given value
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*
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* @param groupName
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* the group to which the job belongs. This keeps us from
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* returning unrelated jobs that just happen to have a similar
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* parameter
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* @param paramName
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* the name of the parameter we are looking for
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* @param paramValue
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* the value of the parameter we are looking for
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* @return a HashMap of job data objects with all jobs in a given group that
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* have parameters that match our parameter.
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*/
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public HashMap<Long, ScheduledJobDAO> getJobsWithParameter(String groupName, String paramName, String paramValue) throws AccessException {
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// first get all jobs
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HashMap<Long, ScheduledJobDAO> allJobsMap = getAllJobs(groupName);
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HashMap<Long, ScheduledJobDAO> jobsWithParamMap = new HashMap<Long, ScheduledJobDAO>();
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// then iterate through and grab the ones that have the desired parameter
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for (Long jobDAOId : allJobsMap.keySet()) {
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ScheduledJobDAO jobDAO = allJobsMap.get(jobDAOId);
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if (paramValue != null && paramName != null) {
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ScheduledJobParamDAO jobParamDAO = jobDAO.getJobParam(paramName);
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if(jobParamDAO != null && jobParamDAO.getValue().equals(paramValue)) {
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jobsWithParamMap.put(jobDAOId, jobDAO);
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}
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}
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}
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return jobsWithParamMap;
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}
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/**
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* Get all jobs for a given group. A group is typically a category that coincides with
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* the job type (has it's own job implementation).
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* @param groupName the name of the group we want to search
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* @return a HashMap of job data objects for the desired group.
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*/
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public HashMap<Long, ScheduledJobDAO> getAllJobs(String groupName) throws AccessException {
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ScheduledJobDAO jobDAO = null;
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HashMap<Long, ScheduledJobDAO> allJobDAOs = new HashMap<Long, ScheduledJobDAO>();
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// Get all jobs where the status is not deleted
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PreparedStatement pstmt = null;
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try {
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String sql = "SELECT * FROM scheduled_job WHERE status != 'deleted'";
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if (groupName != null) {
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sql += " AND group_name = ?" ;
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}
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pstmt = conn.prepareStatement(sql);
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String sqlReport = "ScheduledJobAccess.getAllJobs - SQL: " + sql;
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if (groupName != null) {
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pstmt.setString(1, groupName);
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sqlReport += " [" + groupName + "]";
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}
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logMetacat.info(sqlReport);
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pstmt.execute();
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ResultSet resultSet = pstmt.getResultSet();
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while (resultSet.next()) {
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jobDAO = populateDAO(resultSet);
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allJobDAOs.put(jobDAO.getId(), jobDAO);
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}
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// Here we grab all job params and put them into the associated jobs. THis
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// takes a little stress off the database by avoiding a join.
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ScheduledJobParamAccess jobParamAccess = new ScheduledJobParamAccess();
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Vector<ScheduledJobParamDAO> jobParamList =
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jobParamAccess.getAllJobParams();
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for(ScheduledJobParamDAO jobParamDAO : jobParamList) {
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Long jobId = jobParamDAO.getJobId();
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if( allJobDAOs.containsKey(jobId)) {
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allJobDAOs.get(jobId).addJobParam(jobParamDAO);
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}
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}
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return allJobDAOs;
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} catch (SQLException sqle) {
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throw new AccessException("ScheduledJobAccess.getJobByName - SQL error when getting all jobs : "
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+ sqle.getMessage());
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} finally {
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try {
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if (pstmt != null) {
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pstmt.close();
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}
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} catch (SQLException sqle) {
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logMetacat.error("ScheduledJobAccess.getJobByName - An error occurred "
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+ "closing prepared statement: " + sqle.getMessage());
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} finally {
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DBConnectionPool.returnDBConnection(conn, serialNumber);
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}
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}
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}
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/**
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* Create a job in the database.
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*
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* @param name
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* the name of the job. This should be unique
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* @param triggerName
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* the name of the trigger that is registered in the scheduler
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* service
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* @param groupName
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* the group of the job
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* @param jobClass
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* the class that implements the job functionality. The name of
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* this class will be extracted and put into the database.
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* @param startTime
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* the time when the job should first run
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* @param intervalValue
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* the amount of time between job runs.
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* @param intervalUnit
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* the unit of time that the intervalValue represents. Valid
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* values are s,m,h, d and w
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* @param jobParams
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* a map of parameters that are associated with this job.
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*/
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public void createJob(String name, String triggerName, String groupName,
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Class<Job> jobClass, Calendar startTime, Calendar endTime, int intervalValue,
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String intervalUnit, HashMap<String, String> jobParams)
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throws AccessException {
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| 298 |
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// Create and populate a job data object
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ScheduledJobDAO jobDAO = new ScheduledJobDAO();
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jobDAO.setStatus(StatusUtil.SCHEDULED);
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jobDAO.setName(name);
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jobDAO.setTriggerName(name);
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jobDAO.setGroupName(groupName);
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jobDAO.setClassName(jobClass.getName());
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jobDAO.setStartTime(new Timestamp(startTime.getTimeInMillis()));
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jobDAO.setEndTime(new Timestamp(endTime.getTimeInMillis()));
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jobDAO.setIntervalValue(intervalValue);
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| 309 |
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jobDAO.setIntervalUnit(intervalUnit);
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| 310 |
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| 311 |
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createJob(jobDAO, jobParams);
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| 312 |
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}
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| 313 |
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/**
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| 315 |
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* Create a job in the database
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| 316 |
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* @param jobDAO the job data object that holds necessary information
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| 317 |
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|
* @param jobParams a map of parameters that are associated with this job.
|
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|
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*/
|
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public void createJob(ScheduledJobDAO jobDAO, HashMap<String, String> jobParams) throws AccessException {
|
| 320 |
|
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PreparedStatement pstmt = null;
|
| 321 |
|
|
|
| 322 |
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// First insert the job
|
| 323 |
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try {
|
| 324 |
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String sql =
|
| 325 |
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"INSERT INTO scheduled_job (date_created, date_updated, status, name, trigger_name, group_name, class_name, start_time, end_time, interval_value, interval_unit) "
|
| 326 |
|
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+ "VALUES(now(), now(), ?, ?, ?, ?, ?, ?, ?, ?, ?)";
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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.getTriggerName());
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pstmt.setString(4, jobDAO.getGroupName());
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pstmt.setString(5, jobDAO.getClassName());
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pstmt.setTimestamp(6, jobDAO.getStartTime());
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pstmt.setTimestamp(7, jobDAO.getEndTime());
|
| 336 |
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pstmt.setInt(8, jobDAO.getIntervalValue());
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| 337 |
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pstmt.setString(9, jobDAO.getIntervalUnit());
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String sqlReport = "ScheduledJobAccess.createJob - SQL: " + sql
|
| 340 |
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+ " [" + jobDAO.getStatus() + ","
|
| 341 |
|
|
+ jobDAO.getName() + ","
|
| 342 |
|
|
+ jobDAO.getTriggerName() + ","
|
| 343 |
|
|
+ jobDAO.getGroupName() + ","
|
| 344 |
|
|
+ jobDAO.getClassName() + ",(Timestamp)"
|
| 345 |
|
|
+ jobDAO.getStartTime().toString() + ",";
|
| 346 |
|
|
if(jobDAO.getEndTime() == null) {
|
| 347 |
|
|
sqlReport += "null,";
|
| 348 |
|
|
} else {
|
| 349 |
|
|
sqlReport += jobDAO.getEndTime().toString() + ",";
|
| 350 |
|
|
}
|
| 351 |
|
|
sqlReport += jobDAO.getIntervalValue() + ","
|
| 352 |
|
|
+ jobDAO.getIntervalUnit() + "]";
|
| 353 |
|
|
logMetacat.info(sqlReport);
|
| 354 |
|
|
|
| 355 |
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pstmt.execute();
|
| 356 |
|
|
|
| 357 |
|
|
} catch (SQLException sqle) {
|
| 358 |
|
|
throw new AccessException("ScheduledJobAccess.createJob - SQL error when creating scheduled job "
|
| 359 |
|
|
+ jobDAO.getName() + " : " + sqle.getMessage());
|
| 360 |
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} finally {
|
| 361 |
|
|
try {
|
| 362 |
|
|
if (pstmt != null) {
|
| 363 |
|
|
pstmt.close();
|
| 364 |
|
|
}
|
| 365 |
|
|
} catch (SQLException sqle) {
|
| 366 |
|
|
logMetacat.error("ScheduledJobAccess.createJob - An error occurred "
|
| 367 |
|
|
+ "closing prepared statement: " + sqle.getMessage());
|
| 368 |
|
|
} finally {
|
| 369 |
|
|
DBConnectionPool.returnDBConnection(conn, serialNumber);
|
| 370 |
|
|
}
|
| 371 |
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|
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|
}
|
| 372 |
|
|
|
| 373 |
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|
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|
// Then iterate through the job params and insert them into the db
|
| 374 |
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|
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|
if (jobParams.size() > 0) {
|
| 375 |
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|
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|
ScheduledJobParamAccess scheduledJobParamsAccess = null;
|
| 376 |
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|
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|
ScheduledJobDAO updatedJobDAO = null;
|
| 377 |
|
|
try {
|
| 378 |
|
|
updatedJobDAO = getJobByName(jobDAO.getName());
|
| 379 |
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|
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|
scheduledJobParamsAccess = new ScheduledJobParamAccess();
|
| 380 |
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|
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|
scheduledJobParamsAccess.createJobParams(updatedJobDAO.getId(), jobParams);
|
| 381 |
|
|
} catch (AccessException ae) {
|
| 382 |
|
|
if (updatedJobDAO != null) {
|
| 383 |
4967
|
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|
updatedJobDAO.setStatus(StatusUtil.DELETED);
|
| 384 |
|
|
updateJobStatus(updatedJobDAO);
|
| 385 |
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|
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|
scheduledJobParamsAccess.deleteJobParams(updatedJobDAO.getId());
|
| 386 |
|
|
} else {
|
| 387 |
|
|
logMetacat.warn("ScheduledJobAccess.createJob - Tried to delete non-existant scheduled job: "
|
| 388 |
|
|
+ jobDAO.getName());
|
| 389 |
|
|
}
|
| 390 |
|
|
}
|
| 391 |
|
|
}
|
| 392 |
|
|
}
|
| 393 |
|
|
|
| 394 |
4971
|
daigle
|
/**
|
| 395 |
|
|
* Update the status of a job in the database
|
| 396 |
|
|
*
|
| 397 |
|
|
* @param jobDAO
|
| 398 |
|
|
* the job data object that we want to change. The status should
|
| 399 |
|
|
* already have been updated in this object
|
| 400 |
|
|
*/
|
| 401 |
4951
|
daigle
|
public void updateJobStatus(ScheduledJobDAO jobDAO) throws AccessException {
|
| 402 |
|
|
|
| 403 |
|
|
if (jobDAO == null) {
|
| 404 |
|
|
throw new AccessException("ScheduledJobAccess.updateJobStatus - job DAO cannot be null.");
|
| 405 |
|
|
}
|
| 406 |
|
|
|
| 407 |
4959
|
daigle
|
PreparedStatement pstmt = null;
|
| 408 |
|
|
|
| 409 |
4951
|
daigle
|
try {
|
| 410 |
|
|
String sql = "UPDATE scheduled_job SET status = ? WHERE id = ?";
|
| 411 |
4967
|
daigle
|
|
| 412 |
|
|
pstmt = conn.prepareStatement(sql);
|
| 413 |
4951
|
daigle
|
pstmt.setString(1, jobDAO.getStatus());
|
| 414 |
|
|
pstmt.setLong(2, jobDAO.getId());
|
| 415 |
|
|
|
| 416 |
5012
|
daigle
|
String sqlReport = "ScheduledJobAccess.deleteJob - SQL: " + sql
|
| 417 |
|
|
+ " [" + jobDAO.getStatus() + "," + jobDAO.getId() + "]";
|
| 418 |
|
|
logMetacat.info(sqlReport);
|
| 419 |
4951
|
daigle
|
|
| 420 |
|
|
pstmt.execute();
|
| 421 |
|
|
} catch (SQLException sqle) {
|
| 422 |
|
|
throw new AccessException("ScheduledJobAccess.deleteJob - SQL error when "
|
| 423 |
|
|
+ "deleting scheduled job " + jobDAO.getName() + " : " + sqle.getMessage());
|
| 424 |
4959
|
daigle
|
} finally {
|
| 425 |
|
|
try {
|
| 426 |
|
|
if (pstmt != null) {
|
| 427 |
|
|
pstmt.close();
|
| 428 |
|
|
}
|
| 429 |
|
|
} catch (SQLException sqle) {
|
| 430 |
|
|
logMetacat.error("ScheduledJobAccess.updateJobStatus - An error occurred "
|
| 431 |
|
|
+ "closing prepared statement: " + sqle.getMessage());
|
| 432 |
|
|
} finally {
|
| 433 |
|
|
DBConnectionPool.returnDBConnection(conn, serialNumber);
|
| 434 |
|
|
}
|
| 435 |
|
|
}
|
| 436 |
4951
|
daigle
|
|
| 437 |
|
|
}
|
| 438 |
|
|
|
| 439 |
4971
|
daigle
|
/**
|
| 440 |
|
|
* Populate a job data object with the current row in a resultset
|
| 441 |
|
|
*
|
| 442 |
|
|
* @param resultSet
|
| 443 |
|
|
* the result set which is already pointing to the desired row.
|
| 444 |
|
|
* @return a scheduled job data object
|
| 445 |
|
|
*/
|
| 446 |
4959
|
daigle
|
protected ScheduledJobDAO populateDAO(ResultSet resultSet) throws SQLException {
|
| 447 |
|
|
|
| 448 |
|
|
ScheduledJobDAO jobDAO = new ScheduledJobDAO();
|
| 449 |
|
|
jobDAO.setId(resultSet.getLong("id"));
|
| 450 |
|
|
jobDAO.setCreateTime(resultSet.getTimestamp("date_created"));
|
| 451 |
|
|
jobDAO.setModTime(resultSet.getTimestamp("date_updated"));
|
| 452 |
|
|
jobDAO.setStatus(resultSet.getString("status"));
|
| 453 |
|
|
jobDAO.setName(resultSet.getString("name"));
|
| 454 |
|
|
jobDAO.setTriggerName(resultSet.getString("trigger_name"));
|
| 455 |
|
|
jobDAO.setGroupName(resultSet.getString("group_name"));
|
| 456 |
|
|
jobDAO.setClassName(resultSet.getString("class_name"));
|
| 457 |
|
|
jobDAO.setStartTime(resultSet.getTimestamp("start_time"));
|
| 458 |
5012
|
daigle
|
jobDAO.setEndTime(resultSet.getTimestamp("end_time"));
|
| 459 |
4959
|
daigle
|
jobDAO.setIntervalValue(resultSet.getInt("interval_value"));
|
| 460 |
|
|
jobDAO.setIntervalUnit(resultSet.getString("interval_unit"));
|
| 461 |
|
|
|
| 462 |
|
|
return jobDAO;
|
| 463 |
|
|
}
|
| 464 |
|
|
|
| 465 |
4951
|
daigle
|
}
|