Exemplo n.º 1
0
 public Command newCommand(
     CommandType type, Set<Byte> involvedPartitions, Map<Byte, Long> instanceMap) {
   Command c =
       new Command(
           type.getValue(),
           new Random().nextLong(),
           (int) (System.currentTimeMillis() / 1000L),
           involvedPartitions);
   c.setInstanceMap(instanceMap);
   return c;
 }
Exemplo n.º 2
0
 @Override
 public Response truncate(String path, long size, Map<Byte, Long> instanceMap) throws TException {
   path = makePathAbsolute(path);
   Set<Byte> parts = oracle.partitionsOf(path);
   Command cmd = newCommand(CommandType.TRUNCATE, parts, instanceMap);
   TruncateCmd truncate = new TruncateCmd(path, size, parts);
   cmd.setTruncate(truncate);
   replica.submitCommand(cmd);
   Response r = new Response(replica.getInstanceMap());
   return r;
 }
Exemplo n.º 3
0
 @Override
 public Response chmod(String path, int mode, Map<Byte, Long> instanceMap) throws TException {
   path = makePathAbsolute(path);
   Set<Byte> parts = oracle.partitionsOf(path);
   Command cmd = newCommand(CommandType.CHMOD, parts, instanceMap);
   ChmodCmd chmod = new ChmodCmd(path, mode, parts);
   cmd.setChmod(chmod);
   replica.submitCommand(cmd);
   Response r = new Response(replica.getInstanceMap());
   return r;
 }
Exemplo n.º 4
0
 @Override
 public Response release(String path, FileHandle fh, int flags, Map<Byte, Long> instanceMap)
     throws TException {
   path = makePathAbsolute(path);
   Set<Byte> parts = oracle.partitionsOf(path);
   Command cmd = newCommand(CommandType.RELEASE, parts, instanceMap);
   ReleaseCmd release = new ReleaseCmd(path, fh, flags, parts);
   cmd.setRelease(release);
   replica.submitCommand(cmd);
   Response r = new Response(replica.getInstanceMap());
   return r;
 }
Exemplo n.º 5
0
 @Override
 public Response open(String path, int flags, Map<Byte, Long> instanceMap) throws TException {
   path = makePathAbsolute(path);
   Set<Byte> parts = oracle.partitionsOf(path);
   Command cmd = newCommand(CommandType.OPEN, parts, instanceMap);
   OpenCmd open = new OpenCmd(path, flags, parts);
   cmd.setOpen(open);
   FileHandle fh = (FileHandle) replica.submitCommand(cmd);
   Response r = new Response(replica.getInstanceMap());
   r.setOpen(fh);
   return r;
 }
Exemplo n.º 6
0
 @Override
 public Response writeBlocks(
     String path, FileHandle fh, long offset, List<DBlock> blocks, Map<Byte, Long> instanceMap)
     throws TException {
   path = makePathAbsolute(path);
   Set<Byte> parts = oracle.partitionsOf(path);
   Command cmd = newCommand(CommandType.WRITE_BLOCKS, parts, instanceMap);
   WriteBlocksCmd write = new WriteBlocksCmd(path, fh, offset, blocks, parts);
   cmd.setWrite(write);
   replica.submitCommand(cmd);
   Response r = new Response(replica.getInstanceMap());
   return r;
 }
Exemplo n.º 7
0
 @Override
 public Response rmdir(String path, Map<Byte, Long> instanceMap) throws TException {
   path = makePathAbsolute(path);
   Set<Byte> parts = oracle.partitionsOf(path);
   Set<Byte> parentParts = oracle.partitionsOf(Paths.dirname(path));
   Set<Byte> involvedPartitions = Sets.union(parts, parentParts);
   Command cmd = newCommand(CommandType.RMDIR, involvedPartitions, instanceMap);
   RmdirCmd rmdir = new RmdirCmd(path, parentParts, parts);
   cmd.setRmdir(rmdir);
   replica.submitCommand(cmd);
   Response r = new Response(replica.getInstanceMap());
   return r;
 }
Exemplo n.º 8
0
 @Override
 public Response getattr(String path, Map<Byte, Long> instanceMap) throws TException {
   // can be sent to ANY partition that replicates the path - we send it to the first returned by
   // the oracle
   path = makePathAbsolute(path);
   Set<Byte> parts = Sets.newHashSet(Byte.valueOf(partition));
   Command cmd = newCommand(CommandType.ATTR, parts, instanceMap);
   AttrCmd attr = new AttrCmd(path, parts);
   cmd.setAttr(attr);
   Attr result = (Attr) replica.submitCommand(cmd);
   Response r = new Response(replica.getInstanceMap());
   r.setGetattr(result);
   return r;
 }
Exemplo n.º 9
0
 @Override
 public Response readlink(String path, Map<Byte, Long> instanceMap) throws TException {
   path = makePathAbsolute(path);
   // can be sent to ANY partition that replicates the path - we send it to the first returned by
   // the oracle
   Set<Byte> parts = Sets.newHashSet(Byte.valueOf(partition));
   Command cmd = newCommand(CommandType.READLINK, parts, instanceMap);
   ReadlinkCmd readlink = new ReadlinkCmd(path, parts);
   cmd.setReadlink(readlink);
   String result = (String) replica.submitCommand(cmd);
   Response r = new Response(replica.getInstanceMap());
   r.setReadlink(result);
   return r;
 }
Exemplo n.º 10
0
 @Override
 public Response mknod(
     String path, int mode, int rdev, int uid, int gid, Map<Byte, Long> instanceMap)
     throws TException {
   path = makePathAbsolute(path);
   Set<Byte> parts = oracle.partitionsOf(path);
   Set<Byte> parentParts = oracle.partitionsOf(Paths.dirname(path));
   Set<Byte> involvedPartitions = Sets.union(parts, parentParts);
   Command cmd = newCommand(CommandType.MKNOD, involvedPartitions, instanceMap);
   MknodCmd mknod = new MknodCmd(path, mode, uid, gid, parentParts, parts);
   cmd.setMknod(mknod);
   replica.submitCommand(cmd);
   Response r = new Response(replica.getInstanceMap());
   return r;
 }
Exemplo n.º 11
0
 @Override
 public Response getdir(String path, Map<Byte, Long> instanceMap) throws TException {
   // can be sent to ANY partition that replicates the path - we send it to the first returned by
   // the oracle
   path = makePathAbsolute(path);
   Set<Byte> parts = Sets.newHashSet(Byte.valueOf(partition));
   Command cmd = newCommand(CommandType.GETDIR, parts, instanceMap);
   GetdirCmd getdir = new GetdirCmd(path, parts);
   cmd.setGetdir(getdir);
   @SuppressWarnings("unchecked")
   List<DirEntry> entries = (List<DirEntry>) replica.submitCommand(cmd);
   Response r = new Response(replica.getInstanceMap());
   r.setGetdir(entries);
   return r;
 }
Exemplo n.º 12
0
 @Override
 public Response readBlocks(
     String path, FileHandle fh, long offset, long bytes, Map<Byte, Long> instanceMap)
     throws TException {
   path = makePathAbsolute(path);
   // assuming this replica replicates the file, send to own partition
   Set<Byte> parts = Sets.newHashSet(Byte.valueOf(partition));
   Command cmd = newCommand(CommandType.READ_BLOCKS, parts, instanceMap);
   ReadBlocksCmd read = new ReadBlocksCmd(path, fh, offset, bytes, parts);
   cmd.setRead(read);
   ReadResult readResult = (ReadResult) replica.submitCommand(cmd);
   Response r = new Response(replica.getInstanceMap());
   r.setReadBlocks(readResult);
   return r;
 }
Exemplo n.º 13
0
 @Override
 public Response symlink(String target, String path, Map<Byte, Long> instanceMap)
     throws TException {
   path = makePathAbsolute(path);
   target = makePathAbsolute(target);
   Set<Byte> parts = oracle.partitionsOf(path);
   Set<Byte> parentParts = oracle.partitionsOf(Paths.dirname(path));
   Set<Byte> involvedPartitions = Sets.union(parts, parentParts);
   Command cmd = newCommand(CommandType.SYMLINK, involvedPartitions, instanceMap);
   SymlinkCmd symlink = new SymlinkCmd(target, path, parentParts, parts);
   cmd.setSymlink(symlink);
   replica.submitCommand(cmd);
   Response r = new Response(replica.getInstanceMap());
   return r;
 }
Exemplo n.º 14
0
  @Override
  public Response debug(Debug debug) throws TException {
    Set<Byte> partitions;
    if (debug.getType() == DebugCommands.POPULATE_FILE.getId()) {
      partitions = oracle.partitionsOf("/");
    } else {
      partitions = new HashSet<>();
      partitions.add(Byte.valueOf(Byte.parseByte(debug.getData().get("partition"))));
    }

    Command cmd = newCommand(CommandType.DEBUG, partitions, null);
    cmd.setDebug(debug);
    replica.submitCommand(cmd);
    Response r = new Response(replica.getInstanceMap());
    return r;
  }
Exemplo n.º 15
0
  @Override
  public Response rename(String from, String to, Map<Byte, Long> instanceMap) throws TException {
    from = makePathAbsolute(from);
    to = makePathAbsolute(to);
    Set<Byte> fromParts = oracle.partitionsOf(from);
    Set<Byte> fromParentParts = oracle.partitionsOf(Paths.dirname(from));
    Set<Byte> toParts = oracle.partitionsOf(to);
    Set<Byte> toParentParts = oracle.partitionsOf(Paths.dirname(to));
    Set<Byte> involvedPartitions = new HashSet<>();
    involvedPartitions.addAll(fromParts);
    involvedPartitions.addAll(fromParentParts);
    involvedPartitions.addAll(toParts);
    involvedPartitions.addAll(toParentParts);

    Command cmd = newCommand(CommandType.RENAME, involvedPartitions, instanceMap);
    RenameCmd rename = new RenameCmd(from, to, fromParentParts, fromParts, toParentParts, toParts);
    cmd.setRename(rename);
    replica.submitCommand(cmd);
    Response r = new Response(replica.getInstanceMap());
    return r;
  }