@Override
public void downloadVolumeToStorage(
DataObject volume, AsyncCompletionCallback<DownloadAnswer> callback) {
boolean downloadJobExists = false;
VolumeDataStoreVO volumeHost = null;
DataStore store = volume.getDataStore();
VolumeInfo volInfo = (VolumeInfo) volume;
RegisterVolumePayload payload = (RegisterVolumePayload) volInfo.getpayload();
String url = payload.getUrl();
String checkSum = payload.getChecksum();
ImageFormat format = ImageFormat.valueOf(payload.getFormat());
volumeHost = _volumeStoreDao.findByStoreVolume(store.getId(), volume.getId());
if (volumeHost == null) {
volumeHost =
new VolumeDataStoreVO(
store.getId(),
volume.getId(),
new Date(),
0,
Status.NOT_DOWNLOADED,
null,
null,
"jobid0000",
null,
url,
checkSum);
_volumeStoreDao.persist(volumeHost);
} else if ((volumeHost.getJobId() != null) && (volumeHost.getJobId().length() > 2)) {
downloadJobExists = true;
}
Long maxVolumeSizeInBytes = getMaxVolumeSizeInBytes();
if (volumeHost != null) {
start();
Volume vol = _volumeDao.findById(volume.getId());
DownloadCommand dcmd =
new DownloadCommand(
(VolumeObjectTO) (volume.getTO()), maxVolumeSizeInBytes, checkSum, url, format);
dcmd.setProxy(getHttpProxy());
if (downloadJobExists) {
dcmd = new DownloadProgressCommand(dcmd, volumeHost.getJobId(), RequestType.GET_OR_RESTART);
dcmd.setResourceType(ResourceType.VOLUME);
}
EndPoint ep = _epSelector.select(volume);
if (ep == null) {
s_logger.warn("There is no secondary storage VM for image store " + store.getName());
return;
}
DownloadListener dl = new DownloadListener(ep, store, volume, _timer, this, dcmd, callback);
ComponentContext.inject(dl); // auto-wired those injected fields in DownloadListener
if (downloadJobExists) {
dl.setCurrState(volumeHost.getDownloadState());
}
try {
ep.sendMessageAsync(dcmd, new UploadListener.Callback(ep.getId(), dl));
} catch (Exception e) {
s_logger.warn(
"Unable to start /resume download of volume "
+ volume.getId()
+ " to "
+ store.getName(),
e);
dl.setDisconnected();
dl.scheduleStatusCheck(RequestType.GET_OR_RESTART);
}
}
}
