/** Serialize a {@link PermissionStatus} from its base components. */
public static void write(
DataOutput out, String username, String groupname, FsPermission permission)
throws IOException {
Text.writeString(out, username);
Text.writeString(out, groupname);
permission.write(out);
}
//////////////////////////////////////////////////
// Writable
//////////////////////////////////////////////////
public void write(DataOutput out) throws IOException {
out.writeInt(path.length);
out.write(path);
out.writeLong(length);
out.writeBoolean(isdir);
out.writeShort(block_replication);
out.writeLong(blocksize);
out.writeLong(modification_time);
out.writeLong(access_time);
permission.write(out);
Text.writeStringOpt(out, owner);
Text.writeStringOpt(out, group);
}