private void serializeFileDiffList(INodeFile file, OutputStream out) throws IOException {
FileWithSnapshotFeature sf = file.getFileWithSnapshotFeature();
if (sf != null) {
List<FileDiff> diffList = sf.getDiffs().asList();
SnapshotDiffSection.DiffEntry entry =
SnapshotDiffSection.DiffEntry.newBuilder()
.setInodeId(file.getId())
.setType(Type.FILEDIFF)
.setNumOfDiff(diffList.size())
.build();
entry.writeDelimitedTo(out);
for (int i = diffList.size() - 1; i >= 0; i--) {
FileDiff diff = diffList.get(i);
SnapshotDiffSection.FileDiff.Builder fb =
SnapshotDiffSection.FileDiff.newBuilder()
.setSnapshotId(diff.getSnapshotId())
.setFileSize(diff.getFileSize());
INodeFileAttributes copy = diff.snapshotINode;
if (copy != null) {
fb.setName(ByteString.copyFrom(copy.getLocalNameBytes()))
.setSnapshotCopy(buildINodeFile(copy, parent.getSaverContext()));
}
fb.build().writeDelimitedTo(out);
}
}
}
/** Load FileDiff list for a file with snapshot feature */
private void loadFileDiffList(InputStream in, INodeFile file, int size) throws IOException {
final FileDiffList diffs = new FileDiffList();
final LoaderContext state = parent.getLoaderContext();
for (int i = 0; i < size; i++) {
SnapshotDiffSection.FileDiff pbf = SnapshotDiffSection.FileDiff.parseDelimitedFrom(in);
INodeFileAttributes copy = null;
if (pbf.hasSnapshotCopy()) {
INodeSection.INodeFile fileInPb = pbf.getSnapshotCopy();
PermissionStatus permission =
loadPermission(fileInPb.getPermission(), state.getStringTable());
AclFeature acl = null;
if (fileInPb.hasAcl()) {
acl =
new AclFeature(
FSImageFormatPBINode.Loader.loadAclEntries(
fileInPb.getAcl(), state.getStringTable()));
}
copy =
new INodeFileAttributes.SnapshotCopy(
pbf.getName().toByteArray(),
permission,
acl,
fileInPb.getModificationTime(),
fileInPb.getAccessTime(),
(short) fileInPb.getReplication(),
fileInPb.getPreferredBlockSize());
}
FileDiff diff = new FileDiff(pbf.getSnapshotId(), copy, null, pbf.getFileSize());
diffs.addFirst(diff);
}
file.addSnapshotFeature(diffs);
}