How to use

addFirst

method

in

org.apache.hadoop.hdfs.server.namenode.snapshot.FileDiffList

public static FileDiffList loadFileDiffList(DataInput in,
  FSImageFormat.Loader loader) throws IOException {
 final int size = in.readInt();
 if (size == -1) {
  return null;
 } else {
  final FileDiffList diffs = new FileDiffList();
  FileDiff posterior = null;
  for(int i = 0; i < size; i++) {
   final FileDiff d = loadFileDiff(posterior, in, loader);
   diffs.addFirst(d);
   posterior = d;
  }
  return diffs;
 }
}

 diff.setBlocks(blocks);
diffs.addFirst(diff);

public static FileDiffList loadFileDiffList(DataInput in,
  FSImageFormat.Loader loader) throws IOException {
 final int size = in.readInt();
 if (size == -1) {
  return null;
 } else {
  final FileDiffList diffs = new FileDiffList();
  FileDiff posterior = null;
  for(int i = 0; i < size; i++) {
   final FileDiff d = loadFileDiff(posterior, in, loader);
   diffs.addFirst(d);
   posterior = d;
  }
  return diffs;
 }
}

public static FileDiffList loadFileDiffList(DataInput in,
  FSImageFormat.Loader loader) throws IOException {
 final int size = in.readInt();
 if (size == -1) {
  return null;
 } else {
  final FileDiffList diffs = new FileDiffList();
  FileDiff posterior = null;
  for(int i = 0; i < size; i++) {
   final FileDiff d = loadFileDiff(posterior, in, loader);
   diffs.addFirst(d);
   posterior = d;
  }
  return diffs;
 }
}

 diff.setBlocks(blocks);
diffs.addFirst(diff);

 diff.setBlocks(blocks);
diffs.addFirst(diff);