if (!(backingInfo instanceof VirtualDiskFlatVer2BackingInfo)) {
throw new Exception("Unsupported VirtualDeviceBackingInfo");
}
List<Pair<String, ManagedObjectReference>> pathList = new ArrayList<Pair<String, ManagedObjectReference>>();
VirtualDiskFlatVer2BackingInfo diskBackingInfo = (VirtualDiskFlatVer2BackingInfo)backingInfo;
if (!followChain) {
pathList.add(new Pair<String, ManagedObjectReference>(diskBackingInfo.getFileName(), diskBackingInfo.getDatastore()));
return pathList;
}
Pair<DatacenterMO, String> dcPair = getOwnerDatacenter();
VirtualMachineFileInfo vmFilesInfo = getFileInfo();
DatastoreFile snapshotDirFile = new DatastoreFile(vmFilesInfo.getSnapshotDirectory());
DatastoreFile vmxDirFile = new DatastoreFile(vmFilesInfo.getVmPathName());
do {
if (diskBackingInfo.getParent() != null) {
pathList.add(new Pair<String, ManagedObjectReference>(diskBackingInfo.getFileName(), diskBackingInfo.getDatastore()));
diskBackingInfo = diskBackingInfo.getParent();
} else {
// try getting parent info from VMDK file itself
byte[] content = null;
try {
String url = getContext().composeDatastoreBrowseUrl(dcPair.second(), diskBackingInfo.getFileName());
content = getContext().getResourceContent(url);
if (content == null || content.length == 0) {
break;
}
pathList.add(new Pair<String, ManagedObjectReference>(diskBackingInfo.getFileName(), diskBackingInfo.getDatastore()));
} catch (Exception e) {
// if snapshot directory has been changed to place other than default. VMware has a bug
// that its corresponding disk backing info is not updated correctly. therefore, we will try search
// in snapshot directory one more time
DatastoreFile currentFile = new DatastoreFile(diskBackingInfo.getFileName());
String vmdkFullDsPath = snapshotDirFile.getCompanionPath(currentFile.getFileName());
String url = getContext().composeDatastoreBrowseUrl(dcPair.second(), vmdkFullDsPath);
content = getContext().getResourceContent(url);
if (content == null || content.length == 0) {
break;
}
pathList.add(new Pair<String, ManagedObjectReference>(vmdkFullDsPath, diskBackingInfo.getDatastore()));
}
VmdkFileDescriptor descriptor = new VmdkFileDescriptor();
descriptor.parse(content);
if (descriptor.getParentFileName() != null && !descriptor.getParentFileName().isEmpty()) {
// create a fake one
VirtualDiskFlatVer2BackingInfo parentDiskBackingInfo = new VirtualDiskFlatVer2BackingInfo();
parentDiskBackingInfo.setDatastore(diskBackingInfo.getDatastore());
String parentFileName = descriptor.getParentFileName();
if (parentFileName.startsWith("/")) {
int fileNameStartPos = parentFileName.lastIndexOf("/");
parentFileName = parentFileName.substring(fileNameStartPos + 1);
parentDiskBackingInfo.setFileName(vmxDirFile.getCompanionPath(parentFileName));
} else {
parentDiskBackingInfo.setFileName(snapshotDirFile.getCompanionPath(parentFileName));
}
diskBackingInfo = parentDiskBackingInfo;
} else {
break;
}