private void completeWithMissingParams(JobDataMap jobDataMap, JobDataMap previousJobDataMap) {
for (Iterator<Entry<String, Object>> iterator = previousJobDataMap.entrySet().iterator();
iterator.hasNext(); ) {
Entry<String, Object> entryFromPrevious = (Entry<String, Object>) iterator.next();
if (!jobDataMap.containsKey(entryFromPrevious.getKey())) {
if (!FOR_EACH_LISTENER.equals(entryFromPrevious.getKey())) {
jobDataMap.put(entryFromPrevious.getKey(), entryFromPrevious.getValue());
}
}
}
}
/** @see org.quartz.Job#execute(org.quartz.JobExecutionContext) */
public void execute(JobExecutionContext context) throws JobExecutionException {
JobDataMap mergedJobDataMap = context.getMergedJobDataMap();
SchedulerContext schedCtxt = null;
try {
schedCtxt = context.getScheduler().getContext();
} catch (SchedulerException e) {
throw new JobExecutionException("Error obtaining scheduler context.", e, false);
}
String fileName = mergedJobDataMap.getString(FILE_NAME);
String listenerName = mergedJobDataMap.getString(FILE_SCAN_LISTENER_NAME);
if (fileName == null) {
throw new JobExecutionException(
"Required parameter '" + FILE_NAME + "' not found in merged JobDataMap");
}
if (listenerName == null) {
throw new JobExecutionException(
"Required parameter '" + FILE_SCAN_LISTENER_NAME + "' not found in merged JobDataMap");
}
FileScanListener listener = (FileScanListener) schedCtxt.get(listenerName);
if (listener == null) {
throw new JobExecutionException(
"FileScanListener named '" + listenerName + "' not found in SchedulerContext");
}
long lastDate = -1;
if (mergedJobDataMap.containsKey(LAST_MODIFIED_TIME)) {
lastDate = mergedJobDataMap.getLong(LAST_MODIFIED_TIME);
}
long newDate = getLastModifiedDate(fileName);
if (newDate < 0) {
log.warn("File '" + fileName + "' does not exist.");
return;
}
if (lastDate > 0 && (newDate != lastDate)) {
// notify call back...
log.info("File '" + fileName + "' updated, notifying listener.");
listener.fileUpdated(fileName);
} else if (log.isDebugEnabled()) {
log.debug("File '" + fileName + "' unchanged.");
}
// It is the JobDataMap on the JobDetail which is actually stateful
context.getJobDetail().getJobDataMap().put(LAST_MODIFIED_TIME, newDate);
}