--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/software/mpdl-services/mpiwg-mpdl-cms/src/de/mpg/mpiwg/berlin/mpdl/cms/scheduler/CmsChainSchedulerListener.java	Tue Nov 27 12:35:19 2012 +0100
@@ -0,0 +1,53 @@
+package de.mpg.mpiwg.berlin.mpdl.cms.scheduler;
+
+import java.util.logging.Logger;
+import org.quartz.JobDataMap;
+import org.quartz.JobDetail;
+import org.quartz.JobExecutionContext;
+import org.quartz.JobExecutionException;
+import org.quartz.JobListener;
+
+import de.mpg.mpiwg.berlin.mpdl.exception.ApplicationException;
+
+public class CmsChainSchedulerListener implements JobListener {
+  private static Logger LOGGER = Logger.getLogger(CmsDocJob.class.getName());
+  
+  public String getName() {
+    return "MpdlJobChainingListener";
+  }
+
+  public void jobToBeExecuted(JobExecutionContext inContext) {
+  }
+
+  public void jobExecutionVetoed(JobExecutionContext inContext) {
+    String message = "Quartz: JobChainingListener: Job execution was vetoed.";
+    LOGGER.fine(message);
+  }
+
+  public void jobWasExecuted(JobExecutionContext inContext, JobExecutionException inException) {
+    // after finishing his job it tries to schedule the next operation (if there is one in the queue)
+    CmsDocOperation docOperation = null;
+    try {
+      CmsChainScheduler mpdlChainScheduler = CmsChainScheduler.getInstance();
+      docOperation = getDocOperation(inContext);
+      mpdlChainScheduler.finishOperation(docOperation);
+    } catch (ApplicationException e) {
+      if (docOperation != null) {
+        docOperation.setErrorMessage(e.getMessage());
+      }
+      LOGGER.severe(e.getMessage());
+    }
+  }
+
+  private CmsDocOperation getDocOperation(JobExecutionContext context) {
+    CmsDocOperation docOperation = null;
+    if (context != null) {
+      JobDetail job = context.getJobDetail();
+      JobDataMap parameters = job.getJobDataMap();
+      docOperation = (CmsDocOperation) parameters.get("operation");
+    }
+    return docOperation;
+  }
+  
+
+}