private INodeReference loadINodeReference(INodeReferenceSection.INodeReference r)
throws IOException {
long referredId = r.getReferredId();
INode referred = fsDir.getInode(referredId);
WithCount withCount = (WithCount) referred.getParentReference();
if (withCount == null) {
withCount = new INodeReference.WithCount(null, referred);
}
final INodeReference ref;
if (r.hasDstSnapshotId()) { // DstReference
ref = new INodeReference.DstReference(null, withCount, r.getDstSnapshotId());
} else {
ref =
new INodeReference.WithName(
null, withCount, r.getName().toByteArray(), r.getLastSnapshotId());
}
return ref;
}
/**
* The sequence of the ref node in refList must be strictly the same with the sequence in
* fsimage
*/
public void loadINodeReferenceSection(InputStream in) throws IOException {
final List<INodeReference> refList = parent.getLoaderContext().getRefList();
while (true) {
INodeReferenceSection.INodeReference e =
INodeReferenceSection.INodeReference.parseDelimitedFrom(in);
if (e == null) {
break;
}
INodeReference ref = loadINodeReference(e);
refList.add(ref);
}
}
private INodeReferenceSection.INodeReference.Builder buildINodeReference(INodeReference ref)
throws IOException {
INodeReferenceSection.INodeReference.Builder rb =
INodeReferenceSection.INodeReference.newBuilder().setReferredId(ref.getId());
if (ref instanceof WithName) {
rb.setLastSnapshotId(((WithName) ref).getLastSnapshotId())
.setName(ByteString.copyFrom(ref.getLocalNameBytes()));
} else if (ref instanceof DstReference) {
rb.setDstSnapshotId(((DstReference) ref).getDstSnapshotId());
}
return rb;
}