@Override
public Void call() throws Exception {
try {
state.reset();
List<CollectRecord> recordSummaries = loadAllSummaries();
if (recordSummaries != null && stepNumbers != null) {
state.setRunning(true);
String fileName = FILE_NAME;
File file = new File(directory, fileName);
if (file.exists()) {
file.delete();
}
FileOutputStream fileOutputStream = new FileOutputStream(file);
BufferedOutputStream bufferedOutputStream = new BufferedOutputStream(fileOutputStream);
ZipOutputStream zipOutputStream = new ZipOutputStream(bufferedOutputStream);
backup(zipOutputStream, recordSummaries);
zipOutputStream.flush();
zipOutputStream.close();
if (!state.isCancelled()) {
state.setComplete(true);
}
}
} catch (Exception e) {
state.setError(true);
LOG.error("Error during data export", e);
} finally {
state.setRunning(false);
}
return null;
}
private void backup(ZipOutputStream zipOutputStream, List<CollectRecord> recordSummaries) {
int total = calculateTotal(recordSummaries);
state.setTotal(total);
includeIdml(zipOutputStream);
for (CollectRecord summary : recordSummaries) {
if (!state.isCancelled()) {
int recordStepNumber = summary.getStep().getStepNumber();
for (int stepNum : stepNumbers) {
if (stepNum <= recordStepNumber) {
backup(zipOutputStream, summary, stepNum);
state.incrementCount();
}
}
} else {
state.setRunning(false);
break;
}
}
}
@Override
public void cancel() {
state.setCancelled(true);
state.setRunning(false);
}