boolean success = false;
Type type = (template.getFormat() == ImageFormat.ISO) ? Type.ISO : Type.TEMPLATE ;
// find an endpoint to send command
DataStore store = this.storeMgr.getDataStore(vmTemplateHost.getDataStoreId(), DataStoreRole.Image);
EndPoint ep = _epSelector.select(store);
//Check if it already exists.
List<UploadVO> extractURLList = _uploadDao.listByTypeUploadStatus(template.getId(), type, UploadVO.Status.DOWNLOAD_URL_CREATED);
if (extractURLList.size() > 0) {
// do some check here
UploadVO upload = extractURLList.get(0);
String uploadUrl = extractURLList.get(0).getUploadUrl();
String[] token = uploadUrl.split("/");
// example: uploadUrl = https://10-11-101-112.realhostip.com/userdata/2fdd9a70-9c4a-4a04-b1d5-1e41c221a1f9.iso
// then token[2] = 10-11-101-112.realhostip.com, token[4] = 2fdd9a70-9c4a-4a04-b1d5-1e41c221a1f9.iso
String hostname = ep.getPublicAddr().replace(".", "-") + ".";
if ((token != null) && (token.length == 5) && (token[2].equals(hostname + _ssvmUrlDomain))) // ssvm publicip and domain suffix not changed
return extractURLList.get(0);
else if ((token != null) && (token.length == 5) && (token[2].startsWith(hostname))) { // domain suffix changed
String uuid = token[4];
uploadUrl = generateCopyUrl(ep.getPublicAddr(), uuid);
UploadVO vo = _uploadDao.createForUpdate();
vo.setLastUpdated(new Date());
vo.setUploadUrl(uploadUrl);
_uploadDao.update(upload.getId(), vo);
return _uploadDao.findById(upload.getId(), true);
} else { // ssvm publicip changed
return null;
}
}
// It doesn't exist so create a DB entry.
UploadVO uploadTemplateObj = new UploadVO(vmTemplateHost.getDataStoreId(), template.getId(), new Date(),
Status.DOWNLOAD_URL_NOT_CREATED, 0, type, Mode.HTTP_DOWNLOAD);
uploadTemplateObj.setInstallPath(vmTemplateHost.getInstallPath());
_uploadDao.persist(uploadTemplateObj);
try{
// Create Symlink at ssvm
String path = vmTemplateHost.getInstallPath();
String uuid = UUID.randomUUID().toString() + "." + template.getFormat().getFileExtension(); // adding "." + vhd/ova... etc.
CreateEntityDownloadURLCommand cmd = new CreateEntityDownloadURLCommand(((ImageStoreEntity)store).getMountPoint(), path, uuid, null);
Answer ans = ep.sendMessage(cmd);
if (ans == null || !ans.getResult()) {
errorString = "Unable to create a link for " +type+ " id:"+template.getId() + "," + ans.getDetails();
s_logger.error(errorString);
throw new CloudRuntimeException(errorString);
}
//Construct actual URL locally now that the symlink exists at SSVM
String extractURL = generateCopyUrl(ep.getPublicAddr(), uuid);
UploadVO vo = _uploadDao.createForUpdate();
vo.setLastUpdated(new Date());
vo.setUploadUrl(extractURL);
vo.setUploadState(Status.DOWNLOAD_URL_CREATED);
_uploadDao.update(uploadTemplateObj.getId(), vo);