Revision 5039
Added by daigle about 15 years ago
src/edu/ucsb/nceas/workflowscheduler/WorkflowJob.java | ||
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/** |
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* '$RCSfile$' |
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* Purpose: a single workflow job that is schedulable |
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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: 2008-07-06 21:25:34 -0700 (Sun, 06 Jul 2008) $' |
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* '$Revision: 4080 $' |
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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.workflowscheduler; |
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import java.rmi.RemoteException; |
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import javax.xml.rpc.ServiceException; |
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import org.apache.log4j.Logger; |
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import org.quartz.InterruptableJob; |
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import org.quartz.JobDetail; |
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import org.quartz.JobDataMap; |
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import org.quartz.JobExecutionContext; |
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import org.quartz.JobExecutionException; |
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import org.kepler.executionWS.KeplerWebServiceLocator; |
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import org.kepler.executionWS.KeplerWebServicePortType; |
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import edu.ucsb.nceas.metacat.scheduler.ScheduledJobAccess; |
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import edu.ucsb.nceas.metacat.scheduler.ScheduledJobDAO; |
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import edu.ucsb.nceas.metacat.scheduler.ScheduledJobParamDAO; |
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public class WorkflowJob implements InterruptableJob { |
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private static Logger logMetacat = Logger.getLogger(WorkflowJob.class); |
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/** |
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* Required method that is called when the job is run by the scheduler. |
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* |
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* @param executionContext |
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* the context information for this job |
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*/ |
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public void execute(JobExecutionContext executionContext) throws JobExecutionException { |
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try { |
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// have to be able to get the job detail |
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JobDetail jobDetail = executionContext.getJobDetail(); |
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if (jobDetail == null) { |
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throw new JobExecutionException("WorkflowJob.execute - Could not get job detail from execution context"); |
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} |
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// have to be able to get the job data map from the job detail |
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JobDataMap jobDataMap = jobDetail.getJobDataMap(); |
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if (jobDataMap == null) { |
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throw new JobExecutionException("WorkflowJob.execute - Could not get job data map from job detail"); |
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} |
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String jobName = jobDetail.getName(); |
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ScheduledJobAccess jobAccess = new ScheduledJobAccess(); |
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ScheduledJobDAO jobDAO = jobAccess.getJobByName(jobName); |
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if(jobDAO == null) { |
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String errorMessage = "WorkflowJob.execute - Could not retrieve job info from " |
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+ "database for job: " + jobName; |
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logMetacat.error(errorMessage); |
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throw new JobExecutionException(errorMessage); |
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} |
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// the kar lsid must be part of the job data map |
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ScheduledJobParamDAO jobParamDAO = jobDAO.getAllJobParams().get("karid"); |
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if (jobParamDAO == null) { |
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throw new JobExecutionException("WorkflowJob.execute - Could not get job param named karid from " |
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+ "job data map for job: " + jobName); |
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} |
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String karLSID = jobParamDAO.getValue(); |
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if (karLSID == null) { |
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throw new JobExecutionException("WorkflowJob.execute - Could not get kar LSID for job: " + jobName); |
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} |
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// Locate service |
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logMetacat.debug("WorkflowJob.execute - Getting kepler webservice Locator"); |
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KeplerWebServiceLocator serviceLocator = new KeplerWebServiceLocator(); |
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// get endpoint service |
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logMetacat.debug("WorkflowJob.execute - Getting kepler webservice"); |
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KeplerWebServicePortType serviceEndpoint = serviceLocator.getKeplerWebServiceHttpSoap11Endpoint(); |
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// call execute against remote endpoint |
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logMetacat.debug("WorkflowJob.execute - Executing with kar lsid:" + karLSID); |
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String status = serviceEndpoint.execute(karLSID); |
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logMetacat.debug("WorkflowJob.execute - Status: " + status); |
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} catch (RemoteException re) { |
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String errorStr = "WorkflowJob.execute - Remote problem when trying to execute task: " + re.getMessage(); |
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logMetacat.error(errorStr); |
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throw new JobExecutionException(errorStr); |
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} catch (ServiceException se) { |
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String errorStr = "WorkflowJob.execute - Service problem when trying to execute task: " + se.getMessage(); |
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logMetacat.error(errorStr); |
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throw new JobExecutionException(errorStr); |
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} catch (Exception e) { |
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String errorStr = "WorkflowJob.execute - General problem when trying to execute task: " + e.getMessage(); |
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logMetacat.error(errorStr); |
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throw new JobExecutionException(errorStr); |
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} |
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} |
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public void interrupt() { |
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} |
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} |
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src/edu/ucsb/nceas/workflowscheduler/WorkflowScheduler.java | ||
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/** |
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* '$RCSfile$' |
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* Purpose: A Class that handles scheduling workflow jobs |
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* Copyright: 2009 Regents of the University of California and the |
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* National Center for Ecological Analysis and Synthesis |
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* Authors: Michael Daigle |
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* |
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* '$Author: daigle $' |
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* '$Date: 2009-03-25 13:41:15 -0800 (Wed, 25 Mar 2009) $' |
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* '$Revision: 4861 $' |
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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.workflowscheduler; |
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import java.io.IOException; |
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import java.io.PrintWriter; |
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import java.util.Calendar; |
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import java.util.Hashtable; |
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import java.util.HashMap; |
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import javax.servlet.http.HttpServletRequest; |
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import javax.servlet.http.HttpServletResponse; |
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import org.apache.log4j.Logger; |
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import edu.ucsb.nceas.metacat.scheduler.BaseScheduler; |
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import edu.ucsb.nceas.metacat.scheduler.ScheduledJobAccess; |
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import edu.ucsb.nceas.metacat.scheduler.ScheduledJobDAO; |
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import edu.ucsb.nceas.metacat.scheduler.SchedulerService; |
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import edu.ucsb.nceas.metacat.scheduler.MetacatSchedulerException; |
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import edu.ucsb.nceas.metacat.shared.AccessException; |
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import edu.ucsb.nceas.metacat.shared.ServiceException; |
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import edu.ucsb.nceas.metacat.util.ErrorSendingErrorException; |
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import edu.ucsb.nceas.metacat.util.ResponseUtil; |
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import edu.ucsb.nceas.utilities.DateUtil; |
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import edu.ucsb.nceas.utilities.UtilException; |
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/** |
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* @author daigle |
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* |
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*/ |
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public class WorkflowScheduler extends BaseScheduler { |
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private static WorkflowScheduler workflowScheduler = null; |
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private static Logger logMetacat = Logger.getLogger(WorkflowScheduler.class); |
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private static String WORKFLOW_JOB_GROUP = "workflow"; |
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private static String WORKFLOW_JOB_CLASS = "edu.ucsb.nceas.workflowscheduler.WorkflowJob"; |
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/** |
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* private constructor since this is a singleton |
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*/ |
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private WorkflowScheduler() {} |
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/** |
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* Get the single instance of SchedulerService. |
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* |
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* @return the single instance of SchedulerService |
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*/ |
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public static WorkflowScheduler getInstance() { |
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if (workflowScheduler == null) { |
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workflowScheduler = new WorkflowScheduler(); |
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} |
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return workflowScheduler; |
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} |
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|
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/** |
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* Scheduling a workflow |
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* |
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* @param request |
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* the servlet request object |
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* @param response |
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* the servlet response object |
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* @param params |
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* the request parameters |
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* @param username |
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* the user |
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* @param groups |
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* the user's group |
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*/ |
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public void scheduleJob(HttpServletRequest request, HttpServletResponse response, |
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Hashtable<String, String[]> params, String username, |
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String[] groups) throws MetacatSchedulerException { |
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String delays[] = params.get("delay"); |
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String startTimes[] = params.get("starttime"); |
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String endTimes[] = params.get("endtime"); |
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HashMap<String, String> jobParams = new HashMap<String, String>(); |
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Calendar startCal = null; |
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Calendar endCal = null; |
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try { |
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SchedulerService schedulerService = SchedulerService.getInstance(); |
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// get start time or delay. Start time takes precedence if both exist. |
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if (startTimes != null && startTimes.length > 0) { |
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startCal = DateUtil.humanReadableToCalendar(startTimes[0], "MM/dd/yyyy HH:mm:ss"); |
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} else if (delays != null && delays.length > 0) { |
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startCal = schedulerService.getStartDateFromDelay(delays[0]); |
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} else { |
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// if delay and starttime were not provided, set date to now. |
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startCal = Calendar.getInstance(); |
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} |
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// get end time. null is fine. |
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if (endTimes != null && endTimes.length > 0) { |
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endCal = DateUtil.humanReadableToCalendar(endTimes[0], "MM/dd/yyyy HH:mm:ss"); |
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} |
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// interval value must exist |
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String intervalValues[] = params.get("intervalvalue"); |
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if (intervalValues == null || intervalValues.length == 0) { |
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throw new MetacatSchedulerException("WorkflowScheduler.scheduleJob - intervalvalue field must be populated " |
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+ "in scheduler parameters when scheduling job."); |
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} |
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String intervalStrValue = intervalValues[0]; |
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int intervalValue = Integer.parseInt(intervalStrValue); |
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// interval unit must exist |
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String intervalUnits[] = params.get("intervalunit"); |
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if (intervalUnits == null || intervalUnits.length == 0) { |
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throw new MetacatSchedulerException("WorkflowScheduler.scheduleJob - intervalunit field must be populated " |
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+ "in scheduler parameters when scheduling job."); |
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} |
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String intervalUnit = intervalUnits[0]; |
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// workflow id must exist. Add to job params |
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String workflowids[] = params.get("workflowid"); |
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if (workflowids == null || workflowids.length == 0) { |
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throw new MetacatSchedulerException("WorkflowScheduler.scheduleJob - workflowid field must be populated " |
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+ "in scheduler parameters when scheduling job."); |
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} |
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jobParams.put("workflowid", workflowids[0]); |
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// kar id must exist. Add to job params |
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String karids[] = params.get("karid"); |
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if (karids == null || karids.length == 0) { |
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throw new MetacatSchedulerException("WorkflowScheduler.scheduleJob - karid field must be populated " |
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+ "in scheduler parameters when scheduling job."); |
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} |
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jobParams.put("karid", karids[0]); |
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// workflow name unit must exist. Add to job params |
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String workflownames[] = params.get("workflowname"); |
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if (workflownames == null || workflownames.length == 0) { |
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throw new MetacatSchedulerException("WorkflowScheduler.scheduleJob - workflowname field must be populated " |
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+ "in scheduler parameters when scheduling job."); |
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} |
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jobParams.put("workflowname", workflownames[0]); |
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String jobName = WORKFLOW_JOB_GROUP |
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+ Calendar.getInstance().getTimeInMillis(); |
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// Schedule the job |
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String xmlResult = schedulerService.scheduleJob(jobName, startCal, endCal, intervalValue, intervalUnit, |
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WORKFLOW_JOB_CLASS, WORKFLOW_JOB_GROUP, jobParams, username, groups); |
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ResponseUtil.sendSuccessXML(response, xmlResult); |
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} catch (UtilException ue) { |
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throw new MetacatSchedulerException("WorkflowScheduler.scheduleJob - " |
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+ "Utility issue when scheduling job: " + ue.getMessage()); |
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} catch (ServiceException se) { |
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throw new MetacatSchedulerException("WorkflowScheduler.scheduleJob - " |
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+ "Service issue when scheduling job", se); |
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} catch (ErrorSendingErrorException esee) { |
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throw new MetacatSchedulerException("WorkflowScheduler.scheduleJob - " |
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+ "Issue sending error when scheduling job: " + esee.getMessage()); |
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} |
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} |
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187 |
|
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188 |
/** |
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* Unschedule a job |
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* |
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* @param request |
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* the servlet request object |
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193 |
* @param response |
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* the servlet response object |
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195 |
* @param params |
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* the request parameters |
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* @param username |
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* the user |
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199 |
* @param groups |
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* the user's group |
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*/ |
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public void unScheduleJob(HttpServletRequest request, HttpServletResponse response, |
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Hashtable<String, String[]> params, String username, String[] groups) |
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204 |
throws MetacatSchedulerException { |
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205 |
try { |
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206 |
// workflow job id must exist |
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207 |
String jobNames[] = params.get("workflowjobid"); |
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208 |
if (jobNames == null || jobNames.length == 0) { |
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209 |
throw new MetacatSchedulerException("SchedulerService.unScheduleJob - workflowjobid " |
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210 |
+ "field must be populated in scheduler parameters when unscheduling job."); |
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211 |
} |
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212 |
String jobName = jobNames[0]; |
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213 |
|
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// unschedule the job |
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SchedulerService schedulerService = SchedulerService.getInstance(); |
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216 |
String xmlResult = schedulerService.unScheduleJob(jobName, username, groups); |
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217 |
|
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218 |
ResponseUtil.sendSuccessXML(response, xmlResult); |
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219 |
|
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220 |
} catch (ServiceException se) { |
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221 |
throw new MetacatSchedulerException("WorkflowScheduler.unScheduleJob - " |
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222 |
+ "Service issue unscheduling job", se); |
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223 |
} catch (Exception e) { |
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224 |
throw new MetacatSchedulerException("WorkflowScheduler.unScheduleJob - " |
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225 |
+ "Generic issue unscheduling job: " + e.getMessage()); |
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226 |
} |
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227 |
} |
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228 |
|
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229 |
/** |
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230 |
* reschedule job |
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231 |
* |
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232 |
* @param request |
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233 |
* the servlet request object |
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234 |
* @param response |
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235 |
* the servlet response object |
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236 |
* @param params |
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237 |
* the request parameters |
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238 |
* @param username |
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239 |
* the user |
|
240 |
* @param groups |
|
241 |
* the user's group |
|
242 |
*/ |
|
243 |
public void reScheduleJob(HttpServletRequest request, HttpServletResponse response, |
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244 |
Hashtable<String, String[]> params, String username, |
|
245 |
String[] groups) throws MetacatSchedulerException { |
|
246 |
|
|
247 |
try { |
|
248 |
// workflow job id must exist |
|
249 |
String jobNames[] = params.get("workflowjobid"); |
|
250 |
if (jobNames == null || jobNames.length == 0) { |
|
251 |
throw new MetacatSchedulerException("WorkflowScheduler.reScheduleJob - workflowjobid field must be populated " |
|
252 |
+ "in scheduler parameters when rescheduling job."); |
|
253 |
} |
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254 |
String jobName = jobNames[0]; |
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255 |
|
|
256 |
ScheduledJobAccess jobAccess = new ScheduledJobAccess(); |
|
257 |
ScheduledJobDAO jobDAO = jobAccess.getJobByName(jobName); |
|
258 |
|
|
259 |
// reschedule the job |
|
260 |
SchedulerService schedulerService = SchedulerService.getInstance(); |
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261 |
String result = schedulerService.rescheduleJob(jobDAO, username, groups); |
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262 |
|
|
263 |
ResponseUtil.sendSuccessXML(response, result); |
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264 |
|
|
265 |
} catch (AccessException ae) { |
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266 |
throw new MetacatSchedulerException("WorkflowScheduler.reScheduleJob - " |
|
267 |
+ "DB access issue when scheduling job : ", ae); |
|
268 |
} catch (ServiceException se) { |
|
269 |
throw new MetacatSchedulerException("WorkflowScheduler.reScheduleJob - " |
|
270 |
+ "Service issue scheduling job", se); |
|
271 |
} catch (ErrorSendingErrorException esee) { |
|
272 |
throw new MetacatSchedulerException("WorkflowScheduler.reScheduleJob - " |
|
273 |
+ "Issue sending erro when scheduling job: " + esee.getMessage()); |
|
274 |
} |
|
275 |
} |
|
276 |
|
|
277 |
/** |
|
278 |
* delete job - to be implemented |
|
279 |
*/ |
|
280 |
public void deleteJob(HttpServletRequest request, HttpServletResponse response, |
|
281 |
Hashtable<String, String[]> params, String username, String[] groups) throws MetacatSchedulerException { |
|
282 |
try { |
|
283 |
// workflow job id must exist |
|
284 |
String jobNames[] = params.get("workflowjobid"); |
|
285 |
if (jobNames == null || jobNames.length == 0) { |
|
286 |
throw new MetacatSchedulerException( |
|
287 |
"WorkflowScheduler.deleteJob - workflowname field must be populated " |
|
288 |
+ "in scheduler parameters when deleting job."); |
|
289 |
} |
|
290 |
String jobName = jobNames[0]; |
|
291 |
|
|
292 |
ScheduledJobAccess jobAccess = new ScheduledJobAccess(); |
|
293 |
ScheduledJobDAO jobDAO = jobAccess.getJobByName(jobName); |
|
294 |
|
|
295 |
// delete the job |
|
296 |
SchedulerService schedulerService = SchedulerService.getInstance(); |
|
297 |
String result = schedulerService.deleteJob(jobDAO, username, groups); |
|
298 |
|
|
299 |
ResponseUtil.sendSuccessXML(response, result); |
|
300 |
|
|
301 |
} catch (AccessException ae) { |
|
302 |
throw new MetacatSchedulerException("WorkflowScheduler.deleteJob - " |
|
303 |
+ "DB access issue when deleting job : ", ae); |
|
304 |
} catch (ServiceException se) { |
|
305 |
throw new MetacatSchedulerException("WorkflowScheduler.deleteJob - " |
|
306 |
+ "Service issue deleting job", se); |
|
307 |
} catch (ErrorSendingErrorException esee) { |
|
308 |
throw new MetacatSchedulerException("WorkflowScheduler.deleteJob - " |
|
309 |
+ "Issue sending erro when deleting job: " + esee.getMessage()); |
|
310 |
} |
|
311 |
} |
|
312 |
|
|
313 |
/** |
|
314 |
* get job information for a given workflow in xml format |
|
315 |
* |
|
316 |
* @param request |
|
317 |
* the servlet request object |
|
318 |
* @param response |
|
319 |
* the servlet response object |
|
320 |
* @param params |
|
321 |
* the request parameters |
|
322 |
* @param username |
|
323 |
* the user |
|
324 |
* @param groups |
|
325 |
* the user's group |
|
326 |
*/ |
|
327 |
public void getJobs(HttpServletRequest request, HttpServletResponse response, |
|
328 |
Hashtable<String, String[]> params, String username, String[] groups) throws MetacatSchedulerException { |
|
329 |
|
|
330 |
String workflowId = null; |
|
331 |
|
|
332 |
String workflowIds[] = params.get("workflowid"); |
|
333 |
if (workflowIds != null && workflowIds.length != 0) { |
|
334 |
workflowId = workflowIds[0]; |
|
335 |
} |
|
336 |
|
|
337 |
logMetacat.debug("WorkflowScheduler.getJobs - getting jobs for workflow:" + workflowId); |
|
338 |
|
|
339 |
PrintWriter out = null; |
|
340 |
try { |
|
341 |
// get the job info in xml format |
|
342 |
out = response.getWriter(); |
|
343 |
SchedulerService.getInstance().getJobsInfoXML(WORKFLOW_JOB_GROUP, |
|
344 |
"workflowid", workflowId, out); |
|
345 |
} catch (ServiceException se) { |
|
346 |
throw new MetacatSchedulerException("WorkflowScheduler.getJobs - " |
|
347 |
+ "Service error when transforming XML for workflow id: " |
|
348 |
+ workflowId + " : " + se.getMessage()); |
|
349 |
} catch (IOException ioe) { |
|
350 |
throw new MetacatSchedulerException("WorkflowScheduler.getJobs - " |
|
351 |
+ "I/O error when transforming XML for workflow id: " |
|
352 |
+ workflowId + " : " + ioe.getMessage()); |
|
353 |
} finally { |
|
354 |
if (out != null) { |
|
355 |
out.close(); |
|
356 |
} |
|
357 |
} |
|
358 |
} |
|
359 |
} |
|
0 | 360 |
src/edu/ucsb/nceas/workflowscheduler/WorkflowSchedulerServlet.java | ||
---|---|---|
1 |
/** |
|
2 |
* '$RCSfile$' |
|
3 |
* Purpose: A Class that implements a metadata catalog as a java Servlet |
|
4 |
* Copyright: 2006 Regents of the University of California and the |
|
5 |
* National Center for Ecological Analysis and Synthesis |
|
6 |
* Authors: Matt Jones, Dan Higgins, Jivka Bojilova, Chad Berkley, Matthew Perry |
|
7 |
* |
|
8 |
* '$Author: daigle $' |
|
9 |
* '$Date: 2009-08-07 10:35:18 -0700 (Fri, 07 Aug 2009) $' |
|
10 |
* '$Revision: 5018 $' |
|
11 |
* |
|
12 |
* This program is free software; you can redistribute it and/or modify |
|
13 |
* it under the terms of the GNU General Public License as published by |
|
14 |
* the Free Software Foundation; either version 2 of the License, or |
|
15 |
* (at your option) any later version. |
|
16 |
* |
|
17 |
* This program is distributed in the hope that it will be useful, |
|
18 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
19 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
20 |
* GNU General Public License for more details. |
|
21 |
* |
|
22 |
* You should have received a copy of the GNU General Public License |
|
23 |
* along with this program; if not, write to the Free Software |
|
24 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
|
25 |
*/ |
|
26 |
|
|
27 |
package edu.ucsb.nceas.workflowscheduler; |
|
28 |
|
|
29 |
import java.io.IOException; |
|
30 |
import java.io.PrintWriter; |
|
31 |
import java.sql.SQLException; |
|
32 |
import java.util.Enumeration; |
|
33 |
import java.util.Hashtable; |
|
34 |
import java.util.Timer; |
|
35 |
|
|
36 |
import javax.servlet.ServletConfig; |
|
37 |
import javax.servlet.ServletContext; |
|
38 |
import javax.servlet.ServletException; |
|
39 |
import javax.servlet.http.HttpServlet; |
|
40 |
import javax.servlet.http.HttpServletRequest; |
|
41 |
import javax.servlet.http.HttpServletResponse; |
|
42 |
import javax.servlet.http.HttpSession; |
|
43 |
|
|
44 |
import org.apache.log4j.Logger; |
|
45 |
import org.apache.log4j.PropertyConfigurator; |
|
46 |
|
|
47 |
import edu.ucsb.nceas.metacat.database.DBConnectionPool; |
|
48 |
import edu.ucsb.nceas.metacat.properties.PropertyService; |
|
49 |
import edu.ucsb.nceas.metacat.scheduler.SchedulerService; |
|
50 |
import edu.ucsb.nceas.metacat.service.ServiceService; |
|
51 |
import edu.ucsb.nceas.metacat.service.SessionService; |
|
52 |
import edu.ucsb.nceas.metacat.shared.BaseException; |
|
53 |
import edu.ucsb.nceas.metacat.shared.ServiceException; |
|
54 |
import edu.ucsb.nceas.metacat.util.ErrorSendingErrorException; |
|
55 |
import edu.ucsb.nceas.metacat.util.RequestUtil; |
|
56 |
import edu.ucsb.nceas.metacat.util.ResponseUtil; |
|
57 |
import edu.ucsb.nceas.metacat.util.SessionData; |
|
58 |
import edu.ucsb.nceas.utilities.FileUtil; |
|
59 |
|
|
60 |
/** |
|
61 |
* A workflow scheduling server implemented as a Java Servlet |
|
62 |
* |
|
63 |
* Valid actions are: |
|
64 |
* |
|
65 |
* action=scheduleWorkflow -- Schedule a workflow to be run. Scheduling a workflow |
|
66 |
* registers it with the scheduling engine and creates a row |
|
67 |
* in the scheduled_job table. Note that this may be |
|
68 |
* extracted into a separate servlet. |
|
69 |
* delay -- The amount of time from now before the workflow should be run. The |
|
70 |
* delay can be expressed in number of seconds, minutes, hours and days, |
|
71 |
* for instance 30s, 2h, etc. |
|
72 |
* starttime -- The time that the workflow should first run. If both are provided |
|
73 |
* this takes precedence over delay. The time should be expressed as: |
|
74 |
* MM/dd/yyyy HH:mm:ss with the timezone assumed to be that of the OS. |
|
75 |
* endtime -- The time when the workflow should end. The time should be expressed as: |
|
76 |
* MM/dd/yyyy HH:mm:ss with the timezone assumed to be that of the OS. |
|
77 |
* intervalvalue -- The numeric value of the interval between runs |
|
78 |
* intervalunit -- The unit of the interval between runs. Can be s, m, h, d for |
|
79 |
* seconds, minutes, hours and days respectively |
|
80 |
* workflowid -- The lsid of the workflow that we want to schedule. This workflow |
|
81 |
* must already exist in the database. |
|
82 |
* karid -- The karid for the workflow that we want to schedule. |
|
83 |
* workflowname -- The name of the workflow. |
|
84 |
* forwardto -- If provided, forward to this page when processing is done. |
|
85 |
* qformat -- If provided, render results using the stylesheets associated with |
|
86 |
* this skin. Default is xml. |
|
87 |
* action=unscheduleWorkflow -- Unschedule a workflow. Unscheduling a workflow |
|
88 |
* removes it from the scheduling engine and changes the |
|
89 |
* status in the scheduled_job table to " unscheduled. Note |
|
90 |
* that this may be extracted into a separate servlet. |
|
91 |
* workflowjobid -- The job ID for the workflow run that we want to unschedule. This |
|
92 |
* is held in the database as scheduled_job.name |
|
93 |
* forwardto -- If provided, forward to this page when processing is done. |
|
94 |
* qformat -- If provided, render results using the stylesheets associated with |
|
95 |
* this skin. Default is xml. |
|
96 |
* action=rescheduleWorkflow -- Unschedule a workflow. Rescheduling a workflow |
|
97 |
* registers it with the scheduling engine and changes the |
|
98 |
* status in the scheduled_job table to " scheduled. Note |
|
99 |
* that this may be extracted into a separate servlet. |
|
100 |
* workflowjobid -- The job ID for the workflow run that we want to reschedule. This |
|
101 |
* is held in the database as scheduled_job.name |
|
102 |
* forwardto -- If provided, forward to this page when processing is done. |
|
103 |
* qformat -- If provided, render results using the stylesheets associated with |
|
104 |
* this skin. Default is xml. |
|
105 |
* action=deleteScheduledWorkflow -- Delete a workflow. Deleting a workflow |
|
106 |
* removes it from the scheduling engine and changes the |
|
107 |
* status in the scheduled_job table to " deleted. Note |
|
108 |
* that this may be extracted into a separate servlet. |
|
109 |
* workflowjobid -- The job ID for the workflow run that we want to delete. This |
|
110 |
* is held in the database as scheduled_job.name |
|
111 |
* forwardto -- If provided, forward to this page when processing is done. |
|
112 |
* qformat -- If provided, render results using the stylesheets associated with |
|
113 |
* this skin. Default is xml. |
|
114 |
* |
|
115 |
*/ |
|
116 |
public class WorkflowSchedulerServlet extends HttpServlet { |
|
117 |
|
|
118 |
private static final long serialVersionUID = 1L; |
|
119 |
|
|
120 |
private Timer timer = null; |
|
121 |
|
|
122 |
// Constants -- these should be final in a servlet |
|
123 |
private static String LOG_CONFIG_NAME = null; |
|
124 |
|
|
125 |
public static final String APPLICATION_NAME = "workflowscheduler"; |
|
126 |
|
|
127 |
/** |
|
128 |
* Initialize the servlet by creating appropriate database connections |
|
129 |
*/ |
|
130 |
public void init(ServletConfig config) throws ServletException { |
|
131 |
Logger logMetacat = Logger.getLogger(WorkflowSchedulerServlet.class); |
|
132 |
try { |
|
133 |
|
|
134 |
super.init(config); |
|
135 |
|
|
136 |
ServletContext context = config.getServletContext(); |
|
137 |
context.setAttribute("APPLICATION_NAME", APPLICATION_NAME); |
|
138 |
|
|
139 |
// Initialize the properties file |
|
140 |
String dirPath = context.getRealPath("./WEB-INF"); |
|
141 |
|
|
142 |
LOG_CONFIG_NAME = dirPath + FileUtil.getFS() + "log4j.properties"; |
|
143 |
PropertyConfigurator.configureAndWatch(LOG_CONFIG_NAME); |
|
144 |
|
|
145 |
PropertyService.getInstance(context); |
|
146 |
SessionService.getInstance(); |
|
147 |
SchedulerService.getInstance(); |
|
148 |
|
|
149 |
// initialize DBConnection pool |
|
150 |
DBConnectionPool connPool = DBConnectionPool.getInstance(); |
|
151 |
logMetacat.debug("DBConnection pool initialized: " + connPool.toString()); |
|
152 |
|
|
153 |
} catch (ServiceException se) { |
|
154 |
String errorMessage = |
|
155 |
"Service problem while intializing WorkflowScheduler Servlet: " + se.getMessage(); |
|
156 |
logMetacat.error(errorMessage); |
|
157 |
throw new ServletException(errorMessage); |
|
158 |
} catch (SQLException e) { |
|
159 |
String errorMessage = "SQL problem while intializing MetaCat Servlet: " |
|
160 |
+ e.getMessage(); |
|
161 |
logMetacat.error(errorMessage); |
|
162 |
throw new ServletException(errorMessage); |
|
163 |
} |
|
164 |
} |
|
165 |
|
|
166 |
/** |
|
167 |
* Close all db connections from the pool |
|
168 |
*/ |
|
169 |
public void destroy() { |
|
170 |
Logger logMetacat = Logger.getLogger(WorkflowSchedulerServlet.class); |
|
171 |
|
|
172 |
ServiceService.stopAllServices(); |
|
173 |
|
|
174 |
// Close all db connection |
|
175 |
logMetacat.warn("Destroying WorkflowSchedulerServlet"); |
|
176 |
timer.cancel(); |
|
177 |
// IndexingQueue.getInstance().setMetacatRunning(false); |
|
178 |
DBConnectionPool.release(); |
|
179 |
} |
|
180 |
|
|
181 |
/** Handle "GET" method requests from HTTP clients */ |
|
182 |
public void doGet(HttpServletRequest request, HttpServletResponse response) |
|
183 |
throws ServletException, IOException { |
|
184 |
|
|
185 |
// Process the data and send back the response |
|
186 |
handleGetOrPost(request, response); |
|
187 |
} |
|
188 |
|
|
189 |
/** Handle "POST" method requests from HTTP clients */ |
|
190 |
public void doPost(HttpServletRequest request, HttpServletResponse response) |
|
191 |
throws ServletException, IOException { |
|
192 |
|
|
193 |
// Process the data and send back the response |
|
194 |
handleGetOrPost(request, response); |
|
195 |
} |
|
196 |
|
|
197 |
/** |
|
198 |
* Control servlet response depending on the action parameter specified |
|
199 |
*/ |
|
200 |
private void handleGetOrPost(HttpServletRequest request, HttpServletResponse response) |
|
201 |
throws ServletException, IOException { |
|
202 |
Logger logMetacat = Logger.getLogger(WorkflowSchedulerServlet.class); |
|
203 |
|
|
204 |
// Update the last update time for this user if they are not new |
|
205 |
HttpSession httpSession = request.getSession(false); |
|
206 |
if (httpSession != null) { |
|
207 |
SessionService.touchSession(httpSession.getId()); |
|
208 |
} |
|
209 |
|
|
210 |
/* |
|
211 |
* logMetacat.debug("Connection pool size: " |
|
212 |
* +connPool.getSizeOfDBConnectionPool(),10); logMetacat.debug("Free |
|
213 |
* DBConnection number: " |
|
214 |
*/ |
|
215 |
// If all DBConnection in the pool are free and DBConnection pool |
|
216 |
// size is greater than initial value, shrink the connection pool |
|
217 |
// size to initial value |
|
218 |
DBConnectionPool.shrinkDBConnectionPoolSize(); |
|
219 |
|
|
220 |
// Debug message to print out the method which have a busy DBConnection |
|
221 |
try { |
|
222 |
DBConnectionPool pool = DBConnectionPool.getInstance(); |
|
223 |
pool.printMethodNameHavingBusyDBConnection(); |
|
224 |
} catch (SQLException sqle) { |
|
225 |
logMetacat.error("WorkflowSchedulerServlet.handleGetOrPost - error getting DBConnectionPool: " |
|
226 |
+ sqle.getMessage()); |
|
227 |
sqle.printStackTrace(); |
|
228 |
} |
|
229 |
|
|
230 |
try { |
|
231 |
|
|
232 |
String name = null; |
|
233 |
String[] value = null; |
|
234 |
Hashtable<String, String[]> params = new Hashtable<String, String[]>(); |
|
235 |
|
|
236 |
Enumeration<String> paramlist = |
|
237 |
(Enumeration<String>) request.getParameterNames(); |
|
238 |
while (paramlist.hasMoreElements()) { |
|
239 |
|
|
240 |
name = paramlist.nextElement(); |
|
241 |
value = request.getParameterValues(name); |
|
242 |
|
|
243 |
params.put(name, value); |
|
244 |
} |
|
245 |
|
|
246 |
// handle param is emptpy |
|
247 |
if (params.isEmpty() || params == null) { |
|
248 |
return; |
|
249 |
} |
|
250 |
|
|
251 |
// if the user clicked on the input images, decode which image |
|
252 |
// was clicked then set the action. |
|
253 |
if (params.get("action") == null) { |
|
254 |
PrintWriter out = response.getWriter(); |
|
255 |
response.setContentType("text/xml"); |
|
256 |
out.println("<?xml version=\"1.0\"?>"); |
|
257 |
out.println("<error>"); |
|
258 |
out.println("Action not specified"); |
|
259 |
out.println("</error>"); |
|
260 |
out.close(); |
|
261 |
return; |
|
262 |
} |
|
263 |
|
|
264 |
String action = (params.get("action"))[0]; |
|
265 |
logMetacat.info("WorkflowSchedulerServlet.handleGetOrPost - Action is: " + action); |
|
266 |
|
|
267 |
// This block handles session management for the servlet |
|
268 |
// by looking up the current session information for all actions |
|
269 |
// other than "login" and "logout" |
|
270 |
String userName = null; |
|
271 |
String[] groupNames = null; |
|
272 |
name = null; |
|
273 |
|
|
274 |
// handle login action |
|
275 |
if (action.equals("login")) { |
|
276 |
// PrintWriter out = response.getWriter(); |
|
277 |
// handleLoginAction(out, params, request, response); |
|
278 |
// out.close(); |
|
279 |
|
|
280 |
// handle logout action |
|
281 |
} else if (action.equals("logout")) { |
|
282 |
// PrintWriter out = response.getWriter(); |
|
283 |
// handleLogoutAction(out, params, request, response); |
|
284 |
// out.close(); |
|
285 |
|
|
286 |
// handle shrink DBConnection request |
|
287 |
} else if (action.equals("shrink")) { |
|
288 |
PrintWriter out = response.getWriter(); |
|
289 |
boolean success = false; |
|
290 |
// If all DBConnection in the pool are free and DBConnection |
|
291 |
// pool |
|
292 |
// size is greater than initial value, shrink the connection |
|
293 |
// pool |
|
294 |
// size to initial value |
|
295 |
success = DBConnectionPool.shrinkConnectionPoolSize(); |
|
296 |
if (success) { |
|
297 |
// if successfully shrink the pool size to initial value |
|
298 |
out.println("DBConnection Pool shrunk successfully."); |
|
299 |
}// if |
|
300 |
else { |
|
301 |
out.println("DBConnection pool not shrunk successfully."); |
|
302 |
} |
|
303 |
// close out put |
|
304 |
out.close(); |
|
305 |
|
|
306 |
// aware of session expiration on every request |
|
307 |
} else { |
|
308 |
SessionData sessionData = RequestUtil.getSessionData(request); |
|
309 |
|
|
310 |
userName = sessionData.getUserName(); |
|
311 |
// password = sessionData.getPassword(); |
|
312 |
groupNames = sessionData.getGroupNames(); |
|
313 |
// sessionId = sessionData.getId(); |
|
314 |
|
|
315 |
logMetacat.info("WorkflowSchedulerServlet.handleGetOrPost - The user is : " + userName); |
|
316 |
} |
|
317 |
|
|
318 |
if (action.equals("scheduleWorkflow")) { |
|
319 |
try { |
|
320 |
WorkflowScheduler.getInstance().scheduleJob(request, response, |
|
321 |
params, userName, groupNames); |
|
322 |
return; |
|
323 |
} catch (BaseException be) { |
|
324 |
logMetacat.error("WorkflowSchedulerServlet.handleGetOrPost - error when scheduling" |
|
325 |
+ "workflow", be); |
|
326 |
ResponseUtil.sendErrorXML(response, |
|
327 |
ResponseUtil.SCHEDULE_WORKFLOW_ERROR, be); |
|
328 |
return; |
|
329 |
} |
|
330 |
} else if (action.equals("unscheduleWorkflow")) { |
|
331 |
try { |
|
332 |
WorkflowScheduler.getInstance().unScheduleJob(request, response, |
|
333 |
params, userName, groupNames); |
|
334 |
return; |
|
335 |
} catch (BaseException be) { |
|
336 |
logMetacat.error("WorkflowSchedulerServlet.handleGetOrPost - error when unscheduling" |
|
337 |
+ "workflow", be); |
|
338 |
ResponseUtil.sendErrorXML(response, |
|
339 |
ResponseUtil.UNSCHEDULE_WORKFLOW_ERROR, be); |
|
340 |
return; |
|
341 |
} |
|
342 |
} else if (action.equals("rescheduleWorkflow")) { |
|
343 |
try { |
|
344 |
WorkflowScheduler.getInstance().reScheduleJob(request, response, |
|
345 |
params, userName, groupNames); |
|
346 |
return; |
|
347 |
} catch (BaseException be) { |
|
348 |
logMetacat.error("WorkflowSchedulerServlet.handleGetOrPost - error when rescheduling" |
|
349 |
+ "workflow", be); |
|
350 |
ResponseUtil.sendErrorXML(response, |
|
351 |
ResponseUtil.RESCHEDULE_WORKFLOW_ERROR, be); |
|
352 |
return; |
|
353 |
} |
|
354 |
} else if (action.equals("getScheduledWorkflow")) { |
|
355 |
try { |
|
356 |
WorkflowScheduler.getInstance().getJobs(request, response, params, |
|
357 |
userName, groupNames); |
|
358 |
return; |
|
359 |
} catch (BaseException be) { |
|
360 |
logMetacat.error("WorkflowSchedulerServlet.handleGetOrPost - error when getting" |
|
361 |
+ "scheduled workflows", be); |
|
362 |
ResponseUtil.sendErrorXML(response, |
|
363 |
ResponseUtil.GET_SCHEDULED_WORKFLOW_ERROR, be); |
|
364 |
return; |
|
365 |
} |
|
366 |
} else if (action.equals("deleteScheduledWorkflow")) { |
|
367 |
try { |
|
368 |
WorkflowScheduler.getInstance().deleteJob(request, response, params, |
|
369 |
userName, groupNames); |
|
370 |
return; |
|
371 |
} catch (BaseException be) { |
|
372 |
logMetacat.error("WorkflowSchedulerServlet.handleGetOrPost - error when deleting" |
|
373 |
+ "workflow", be); |
|
374 |
ResponseUtil.sendErrorXML(response, |
|
375 |
ResponseUtil.DELETE_SCHEDULED_WORKFLOW_ERROR, be); |
|
376 |
return; |
|
377 |
} |
|
378 |
} else { |
|
379 |
logMetacat.error("WorkflowSchedulerServlet.handleGetOrPost - unregistered action: " |
|
380 |
+ action); |
|
381 |
PrintWriter out = response.getWriter(); |
|
382 |
out.println("<?xml version=\"1.0\"?>"); |
|
383 |
out.println("<error>"); |
|
384 |
out.println("Error: action not registered. Please report this error."); |
|
385 |
out.println("</error>"); |
|
386 |
out.close(); |
|
387 |
} |
|
388 |
} catch (ErrorSendingErrorException esee) { |
|
389 |
String errorString = "WorkflowSchedulerServlet.handleGetOrPost - Error sending error message: " + esee.getMessage(); |
|
390 |
logMetacat.error(errorString); |
|
391 |
throw new ServletException(errorString); |
|
392 |
} |
|
393 |
} |
|
394 |
|
|
395 |
// // LOGIN & LOGOUT SECTION |
|
396 |
// /** |
|
397 |
// * Handle the login request. Create a new session object. Do user |
|
398 |
// * authentication through the session. |
|
399 |
// */ |
|
400 |
// private void handleLoginAction(PrintWriter out, Hashtable<String, String[]> params, |
|
401 |
// HttpServletRequest request, HttpServletResponse response) { |
|
402 |
// Logger logMetacat = Logger.getLogger(WorkflowSchedulerServlet.class); |
|
403 |
// AuthSession sess = null; |
|
404 |
// |
|
405 |
// if(params.get("username") == null){ |
|
406 |
// response.setContentType("text/xml"); |
|
407 |
// out.println("<?xml version=\"1.0\"?>"); |
|
408 |
// out.println("<error>"); |
|
409 |
// out.println("Username not specified"); |
|
410 |
// out.println("</error>"); |
|
411 |
// return; |
|
412 |
// } |
|
413 |
// |
|
414 |
// // } |
|
415 |
// |
|
416 |
// if(params.get("password") == null){ |
|
417 |
// response.setContentType("text/xml"); |
|
418 |
// out.println("<?xml version=\"1.0\"?>"); |
|
419 |
// out.println("<error>"); |
|
420 |
// out.println("Password not specified"); |
|
421 |
// out.println("</error>"); |
|
422 |
// return; |
|
423 |
// } |
|
424 |
// |
|
425 |
// String un = (params.get("username"))[0]; |
|
426 |
// logMetacat.info("user " + un + " is trying to login"); |
|
427 |
// String pw = (params.get("password"))[0]; |
|
428 |
// |
|
429 |
// String qformat = "xml"; |
|
430 |
// if(params.get("qformat") != null){ |
|
431 |
// qformat = (params.get("qformat"))[0]; |
|
432 |
// } |
|
433 |
// |
|
434 |
// try { |
|
435 |
// sess = new AuthSession(); |
|
436 |
// } catch (Exception e) { |
|
437 |
// String errorMsg = "Problem in WorkflowSchedulerServlet.handleLoginAction() authenicating session: " |
|
438 |
// + e.getMessage(); |
|
439 |
// logMetacat.error(errorMsg); |
|
440 |
// out.println(errorMsg); |
|
441 |
// return; |
|
442 |
// } |
|
443 |
// boolean isValid = sess.authenticate(request, un, pw); |
|
444 |
// |
|
445 |
// //if it is authernticate is true, store the session |
|
446 |
// if (isValid) { |
|
447 |
// HttpSession session = sess.getSessions(); |
|
448 |
// String id = session.getId(); |
|
449 |
// logMetacat.debug("Store session id " + id |
|
450 |
// + " which has username" + session.getAttribute("username") |
|
451 |
// + " into hash in login method"); |
|
452 |
// try { |
|
453 |
// SessionService.registerSession(id, (String) session |
|
454 |
// .getAttribute("username"), (String[]) session |
|
455 |
// .getAttribute("groupnames"), (String) session |
|
456 |
// .getAttribute("password")); |
|
457 |
// } catch (ServiceException se) { |
|
458 |
// String errorMsg = "Problem in WorkflowSchedulerServlet.handleLoginAction() registering session: " |
|
459 |
// + se.getMessage(); |
|
460 |
// logMetacat.error(errorMsg); |
|
461 |
// out.println(errorMsg); |
|
462 |
// return; |
|
463 |
// } |
|
464 |
// } |
|
465 |
// |
|
466 |
// // format and transform the output |
|
467 |
// if (qformat.equals("xml")) { |
|
468 |
// response.setContentType("text/xml"); |
|
469 |
// out.println(sess.getMessage()); |
|
470 |
// } else { |
|
471 |
// try { |
|
472 |
// DBTransform trans = new DBTransform(); |
|
473 |
// response.setContentType("text/html"); |
|
474 |
// trans.transformXMLDocument(sess.getMessage(), |
|
475 |
// "-//NCEAS//login//EN", "-//W3C//HTML//EN", qformat, |
|
476 |
// out, null, null); |
|
477 |
// } catch (Exception e) { |
|
478 |
// logMetacat.error("Error in WorkflowSchedulerServlet.handleLoginAction: " |
|
479 |
// + e.getMessage()); |
|
480 |
// } |
|
481 |
// } |
|
482 |
// } |
|
483 |
// |
|
484 |
// /** |
|
485 |
// * Handle the logout request. Close the connection. |
|
486 |
// */ |
|
487 |
// private void handleLogoutAction(PrintWriter out, Hashtable<String, String[]> params, |
|
488 |
// HttpServletRequest request, HttpServletResponse response) { |
|
489 |
// Logger logMetacat = Logger.getLogger(WorkflowSchedulerServlet.class); |
|
490 |
// String qformat = "xml"; |
|
491 |
// if(params.get("qformat") != null){ |
|
492 |
// qformat = params.get("qformat")[0]; |
|
493 |
// } |
|
494 |
// |
|
495 |
// // close the connection |
|
496 |
// HttpSession sess = request.getSession(false); |
|
497 |
// logMetacat.info("After get session in logout request"); |
|
498 |
// if (sess != null) { |
|
499 |
// logMetacat.info("The session id " + sess.getId() |
|
500 |
// + " will be invalidate in logout action"); |
|
501 |
// logMetacat.info("The session contains user " |
|
502 |
// + sess.getAttribute("username") |
|
503 |
// + " will be invalidate in logout action"); |
|
504 |
// sess.invalidate(); |
|
505 |
// SessionService.unRegisterSession(sess.getId()); |
|
506 |
// } |
|
507 |
// |
|
508 |
// // produce output |
|
509 |
// StringBuffer output = new StringBuffer(); |
|
510 |
// output.append("<?xml version=\"1.0\"?>"); |
|
511 |
// output.append("<logout>"); |
|
512 |
// output.append("User logged out"); |
|
513 |
// output.append("</logout>"); |
|
514 |
// |
|
515 |
// //format and transform the output |
|
516 |
// if (qformat.equals("xml")) { |
|
517 |
// response.setContentType("text/xml"); |
|
518 |
// out.println(output.toString()); |
|
519 |
// } else { |
|
520 |
// try { |
|
521 |
// DBTransform trans = new DBTransform(); |
|
522 |
// response.setContentType("text/html"); |
|
523 |
// trans.transformXMLDocument(output.toString(), |
|
524 |
// "-//NCEAS//login//EN", "-//W3C//HTML//EN", qformat, |
|
525 |
// out, null, null); |
|
526 |
// } catch (Exception e) { |
|
527 |
// logMetacat.error( |
|
528 |
// "Error in WorkflowSchedulerServlet.handleLogoutAction" |
|
529 |
// + e.getMessage()); |
|
530 |
// } |
|
531 |
// } |
|
532 |
// } |
|
533 |
} |
|
0 | 534 |
Also available in: Unified diff
Added workflow scheduler directory with supporting files