Package org.apache.hadoop.nfs.nfs3.response

Examples of org.apache.hadoop.nfs.nfs3.response.COMMIT3Response

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    if (dfsClient == null) {
      response.setStatus(Nfs3Status.NFS3ERR_SERVERFAULT);
      return response;
    }
   
    WRITE3Request request = null;

    try {
      request = new WRITE3Request(xdr);
    } catch (IOException e) {
      LOG.error("Invalid WRITE request");
      return new WRITE3Response(Nfs3Status.NFS3ERR_INVAL);
    }

    long offset = request.getOffset();
    int count = request.getCount();
    WriteStableHow stableHow = request.getStableHow();
    byte[] data = request.getData().array();
    if (data.length < count) {
      LOG.error("Invalid argument, data size is less than count in request");
      return new WRITE3Response(Nfs3Status.NFS3ERR_INVAL);
    }

    FileHandle handle = request.getHandle();
    if (LOG.isDebugEnabled()) {
      LOG.debug("NFS WRITE fileId: " + handle.getFileId() + " offset: "
          + offset + " length:" + count + " stableHow:" + stableHow.getValue()
          + " xid:" + xid);
    }

    Nfs3FileAttributes preOpAttr = null;
    try {
      preOpAttr = writeManager.getFileAttr(dfsClient, handle, iug);
      if (preOpAttr == null) {
        LOG.error("Can't get path for fileId:" + handle.getFileId());
        return new WRITE3Response(Nfs3Status.NFS3ERR_STALE);
      }
     
      if (!checkAccessPrivilege(client, AccessPrivilege.READ_WRITE)) {
        return new WRITE3Response(Nfs3Status.NFS3ERR_ACCES, new WccData(
            Nfs3Utils.getWccAttr(preOpAttr), preOpAttr), 0, stableHow,
            Nfs3Constant.WRITE_COMMIT_VERF);
      }
     
      if (LOG.isDebugEnabled()) {
        LOG.debug("requesed offset=" + offset + " and current filesize="
            + preOpAttr.getSize());
      }

      writeManager.handleWrite(dfsClient, request, channel, xid, preOpAttr);

    } catch (IOException e) {
      LOG.info("Error writing to fileId " + handle.getFileId() + " at offset "
          + offset + " and length " + data.length, e);
      // Try to return WccData
      Nfs3FileAttributes postOpAttr = null;
      try {
        postOpAttr = writeManager.getFileAttr(dfsClient, handle, iug);
      } catch (IOException e1) {
        LOG.info("Can't get postOpAttr for fileId: " + handle.getFileId(), e1);
      }
      WccAttr attr = preOpAttr == null ? null : Nfs3Utils.getWccAttr(preOpAttr);
      WccData fileWcc = new WccData(attr, postOpAttr);
      return new WRITE3Response(Nfs3Status.NFS3ERR_IO, fileWcc, 0,
          request.getStableHow(), Nfs3Constant.WRITE_COMMIT_VERF);
    }

    return null;
  }
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  }
 
  @Override
  public ACCESS3Response access(XDR xdr, SecurityHandler securityHandler,
      InetAddress client) {
    ACCESS3Response response = new ACCESS3Response(Nfs3Status.NFS3_OK);
   
    if (!checkAccessPrivilege(client, AccessPrivilege.READ_ONLY)) {
      response.setStatus(Nfs3Status.NFS3ERR_ACCES);
      return response;
    }
   
    DFSClient dfsClient = clientCache.getDfsClient(securityHandler.getUser());
    if (dfsClient == null) {
      response.setStatus(Nfs3Status.NFS3ERR_SERVERFAULT);
      return response;
    }
   
    ACCESS3Request request = null;
    try {
      request = new ACCESS3Request(xdr);
    } catch (IOException e) {
      LOG.error("Invalid ACCESS request");
      return new ACCESS3Response(Nfs3Status.NFS3ERR_INVAL);
    }

    FileHandle handle = request.getHandle();
    Nfs3FileAttributes attrs;

    if (LOG.isDebugEnabled()) {
      LOG.debug("NFS ACCESS fileId: " + handle.getFileId());
    }

    try {
      // HDFS-5804 removed supserUserClient access
      attrs = writeManager.getFileAttr(dfsClient, handle, iug);

      if (attrs == null) {
        LOG.error("Can't get path for fileId:" + handle.getFileId());
        return new ACCESS3Response(Nfs3Status.NFS3ERR_STALE);
      }
      int access = Nfs3Utils.getAccessRightsForUserGroup(
          securityHandler.getUid(), securityHandler.getGid(), attrs);
     
      return new ACCESS3Response(Nfs3Status.NFS3_OK, attrs, access);
    } catch (RemoteException r) {
      LOG.warn("Exception ", r);
      IOException io = r.unwrapRemoteException();
      /**
       * AuthorizationException can be thrown if the user can't be proxy'ed.
       */
      if (io instanceof AuthorizationException) {
        return new ACCESS3Response(Nfs3Status.NFS3ERR_ACCES);
      } else {
        return new ACCESS3Response(Nfs3Status.NFS3ERR_IO);
      }
    } catch (IOException e) {
      LOG.warn("Exception ", e);
      return new ACCESS3Response(Nfs3Status.NFS3ERR_IO);
    }
  }
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  }

  @Override
  public COMMIT3Response commit(XDR xdr, Channel channel, int xid,
      SecurityHandler securityHandler, InetAddress client) {
    COMMIT3Response response = new COMMIT3Response(Nfs3Status.NFS3_OK);
    DFSClient dfsClient = clientCache.getDfsClient(securityHandler.getUser());
    if (dfsClient == null) {
      response.setStatus(Nfs3Status.NFS3ERR_SERVERFAULT);
      return response;
    }
   
    COMMIT3Request request = null;
    try {
      request = new COMMIT3Request(xdr);
    } catch (IOException e) {
      LOG.error("Invalid COMMIT request");
      response.setStatus(Nfs3Status.NFS3ERR_INVAL);
      return response;
    }

    FileHandle handle = request.getHandle();
    if (LOG.isDebugEnabled()) {
      LOG.debug("NFS COMMIT fileId: " + handle.getFileId() + " offset="
          + request.getOffset() + " count=" + request.getCount());
    }

    String fileIdPath = Nfs3Utils.getFileIdPath(handle);
    Nfs3FileAttributes preOpAttr = null;
    try {
      preOpAttr = Nfs3Utils.getFileAttr(dfsClient, fileIdPath, iug);
      if (preOpAttr == null) {
        LOG.info("Can't get path for fileId:" + handle.getFileId());
        return new COMMIT3Response(Nfs3Status.NFS3ERR_STALE);
      }
     
      if (!checkAccessPrivilege(client, AccessPrivilege.READ_WRITE)) {
        return new COMMIT3Response(Nfs3Status.NFS3ERR_ACCES, new WccData(
            Nfs3Utils.getWccAttr(preOpAttr), preOpAttr),
            Nfs3Constant.WRITE_COMMIT_VERF);
      }
     
      long commitOffset = (request.getCount() == 0) ? 0
          : (request.getOffset() + request.getCount());
     
      // Insert commit as an async request
      writeManager.handleCommit(dfsClient, handle, commitOffset, channel, xid,
          preOpAttr);
      return null;
    } catch (IOException e) {
      LOG.warn("Exception ", e);
      Nfs3FileAttributes postOpAttr = null;
      try {
        postOpAttr = writeManager.getFileAttr(dfsClient, handle, iug);
      } catch (IOException e1) {
        LOG.info("Can't get postOpAttr for fileId: " + handle.getFileId(), e1);
      }
      WccData fileWcc = new WccData(Nfs3Utils.getWccAttr(preOpAttr), postOpAttr);
      return new COMMIT3Response(Nfs3Status.NFS3ERR_IO, fileWcc,
          Nfs3Constant.WRITE_COMMIT_VERF);
    }
  }
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  @Override
  public COMMIT3Response commit(XDR xdr, RpcInfo info) {
    //Channel channel, int xid,
    //    SecurityHandler securityHandler, InetAddress client) {
    COMMIT3Response response = new COMMIT3Response(Nfs3Status.NFS3_OK);
    SecurityHandler securityHandler = getSecurityHandler(info);
    DFSClient dfsClient = clientCache.getDfsClient(securityHandler.getUser());
    if (dfsClient == null) {
      response.setStatus(Nfs3Status.NFS3ERR_SERVERFAULT);
      return response;
    }
   
    COMMIT3Request request = null;
    try {
      request = new COMMIT3Request(xdr);
    } catch (IOException e) {
      LOG.error("Invalid COMMIT request");
      response.setStatus(Nfs3Status.NFS3ERR_INVAL);
      return response;
    }

    FileHandle handle = request.getHandle();
    if (LOG.isDebugEnabled()) {
      LOG.debug("NFS COMMIT fileId: " + handle.getFileId() + " offset="
          + request.getOffset() + " count=" + request.getCount());
    }

    String fileIdPath = Nfs3Utils.getFileIdPath(handle);
    Nfs3FileAttributes preOpAttr = null;
    try {
      preOpAttr = Nfs3Utils.getFileAttr(dfsClient, fileIdPath, iug);
      if (preOpAttr == null) {
        LOG.info("Can't get path for fileId:" + handle.getFileId());
        return new COMMIT3Response(Nfs3Status.NFS3ERR_STALE);
      }
     
      if (!checkAccessPrivilege(info, AccessPrivilege.READ_WRITE)) {
        return new COMMIT3Response(Nfs3Status.NFS3ERR_ACCES, new WccData(
            Nfs3Utils.getWccAttr(preOpAttr), preOpAttr),
            Nfs3Constant.WRITE_COMMIT_VERF);
      }
     
      long commitOffset = (request.getCount() == 0) ? 0
          : (request.getOffset() + request.getCount());
     
      // Insert commit as an async request
      RpcCall rpcCall = (RpcCall) info.header();
      int xid = rpcCall.getXid();
      writeManager.handleCommit(dfsClient, handle, commitOffset,
          info.channel(), xid, preOpAttr);
      return null;
    } catch (IOException e) {
      LOG.warn("Exception ", e);
      Nfs3FileAttributes postOpAttr = null;
      try {
        postOpAttr = writeManager.getFileAttr(dfsClient, handle, iug);
      } catch (IOException e1) {
        LOG.info("Can't get postOpAttr for fileId: " + handle.getFileId(), e1);
      }
      WccData fileWcc = new WccData(Nfs3Utils.getWccAttr(preOpAttr), postOpAttr);
      return new COMMIT3Response(Nfs3Status.NFS3ERR_IO, fileWcc,
          Nfs3Constant.WRITE_COMMIT_VERF);
    }
  }
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    // Send response for the ready commits
    while (entry != null && entry.getValue().offset <= flushedOffset) {
      pendingCommits.remove(entry.getKey());
      CommitCtx commit = entry.getValue();

      COMMIT3Response response = new COMMIT3Response(status, wccData,
          Nfs3Constant.WRITE_COMMIT_VERF);
      Nfs3Utils.writeChannelCommit(commit.getChannel(), response
          .writeHeaderAndResponse(new XDR(), commit.getXid(),
              new VerifierNone()), commit.getXid());
     
      if (LOG.isDebugEnabled()) {
        LOG.debug("FileId: " + latestAttr.getFileId() + " Service time:"
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      postOpAttr = Nfs3Utils.getFileAttr(dfsClient, fileIdPath, iug);
    } catch (IOException e1) {
      LOG.info("Can't get postOpAttr for fileId: " + preOpAttr.getFileId(), e1);
    }
    WccData fileWcc = new WccData(Nfs3Utils.getWccAttr(preOpAttr), postOpAttr);
    COMMIT3Response response = new COMMIT3Response(status, fileWcc,
        Nfs3Constant.WRITE_COMMIT_VERF);
    Nfs3Utils.writeChannelCommit(channel,
        response.writeHeaderAndResponse(new XDR(), xid, new VerifierNone()),
        xid);
  }
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  }

  @Override
  public COMMIT3Response commit(XDR xdr, SecurityHandler securityHandler,
      InetAddress client) {
    COMMIT3Response response = new COMMIT3Response(Nfs3Status.NFS3_OK);
    DFSClient dfsClient = clientCache.get(securityHandler.getUser());
    if (dfsClient == null) {
      response.setStatus(Nfs3Status.NFS3ERR_SERVERFAULT);
      return response;
    }
   
    COMMIT3Request request = null;
    try {
      request = new COMMIT3Request(xdr);
    } catch (IOException e) {
      LOG.error("Invalid COMMIT request");
      response.setStatus(Nfs3Status.NFS3ERR_INVAL);
      return response;
    }

    FileHandle handle = request.getHandle();
    if (LOG.isDebugEnabled()) {
      LOG.debug("NFS COMMIT fileId: " + handle.getFileId() + " offset="
          + request.getOffset() + " count=" + request.getCount());
    }

    String fileIdPath = Nfs3Utils.getFileIdPath(handle);
    Nfs3FileAttributes preOpAttr = null;
    try {
      preOpAttr = Nfs3Utils.getFileAttr(dfsClient, fileIdPath, iug);
      if (preOpAttr == null) {
        LOG.info("Can't get path for fileId:" + handle.getFileId());
        return new COMMIT3Response(Nfs3Status.NFS3ERR_STALE);
      }
     
      if (!checkAccessPrivilege(client, AccessPrivilege.READ_WRITE)) {
        return new COMMIT3Response(Nfs3Status.NFS3ERR_ACCES, new WccData(
            Nfs3Utils.getWccAttr(preOpAttr), preOpAttr),
            Nfs3Constant.WRITE_COMMIT_VERF);
      }
     
      long commitOffset = (request.getCount() == 0) ? 0
          : (request.getOffset() + request.getCount());
     
      int status;
      if (writeManager.handleCommit(handle, commitOffset)) {
        status = Nfs3Status.NFS3_OK;
      } else {
        status = Nfs3Status.NFS3ERR_IO;
      }
      Nfs3FileAttributes postOpAttr = writeManager.getFileAttr(dfsClient,
          handle, iug);
      WccData fileWcc = new WccData(Nfs3Utils.getWccAttr(preOpAttr), postOpAttr);
      return new COMMIT3Response(status, fileWcc,
          Nfs3Constant.WRITE_COMMIT_VERF);

    } catch (IOException e) {
      LOG.warn("Exception ", e);
      Nfs3FileAttributes postOpAttr = null;
      try {
        postOpAttr = writeManager.getFileAttr(dfsClient, handle, iug);
      } catch (IOException e1) {
        LOG.info("Can't get postOpAttr for fileId: " + handle.getFileId());
      }
      WccData fileWcc = new WccData(Nfs3Utils.getWccAttr(preOpAttr), postOpAttr);
      return new COMMIT3Response(Nfs3Status.NFS3ERR_IO, fileWcc,
          Nfs3Constant.WRITE_COMMIT_VERF);
    }
  }
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  }

  @Override
  public COMMIT3Response commit(XDR xdr,
      SecurityHandler securityHandler, InetAddress client) {
    COMMIT3Response response = new COMMIT3Response(Nfs3Status.NFS3_OK);
    DFSClient dfsClient = clientCache.get(securityHandler.getUser());
    if (dfsClient == null) {
      response.setStatus(Nfs3Status.NFS3ERR_SERVERFAULT);
      return response;
    }
   
    COMMIT3Request request = null;
    try {
      request = new COMMIT3Request(xdr);
    } catch (IOException e) {
      LOG.error("Invalid COMMIT request");
      response.setStatus(Nfs3Status.NFS3ERR_INVAL);
      return response;
    }

    FileHandle handle = request.getHandle();
    if (LOG.isDebugEnabled()) {
      LOG.debug("NFS COMMIT fileId: " + handle.getFileId() + " offset="
          + request.getOffset() + " count=" + request.getCount());
    }

    String fileIdPath = Nfs3Utils.getFileIdPath(handle);
    Nfs3FileAttributes preOpAttr = null;
    try {
      preOpAttr = Nfs3Utils.getFileAttr(dfsClient, fileIdPath, iug);
      if (preOpAttr == null) {
        LOG.info("Can't get path for fileId:" + handle.getFileId());
        return new COMMIT3Response(Nfs3Status.NFS3ERR_STALE);
      }
     
      if (!checkAccessPrivilege(client, AccessPrivilege.READ_WRITE)) {
        return new COMMIT3Response(Nfs3Status.NFS3ERR_ACCES, new WccData(
            Nfs3Utils.getWccAttr(preOpAttr), preOpAttr),
            Nfs3Constant.WRITE_COMMIT_VERF);
      }
     
      long commitOffset = (request.getCount() == 0) ? 0
          : (request.getOffset() + request.getCount());
     
      int status;
      if (writeManager.handleCommit(handle, commitOffset)) {
        status = Nfs3Status.NFS3_OK;
      } else {
        status = Nfs3Status.NFS3ERR_IO;
      }
      Nfs3FileAttributes postOpAttr = writeManager.getFileAttr(dfsClient,
          handle, iug);
      WccData fileWcc = new WccData(Nfs3Utils.getWccAttr(preOpAttr), postOpAttr);
      return new COMMIT3Response(status, fileWcc,
          Nfs3Constant.WRITE_COMMIT_VERF);

    } catch (IOException e) {
      LOG.warn("Exception ", e);
      Nfs3FileAttributes postOpAttr = null;
      try {
        postOpAttr = writeManager.getFileAttr(dfsClient, handle, iug);
      } catch (IOException e1) {
        LOG.info("Can't get postOpAttr for fileId: " + handle.getFileId());
      }
      WccData fileWcc = new WccData(Nfs3Utils.getWccAttr(preOpAttr), postOpAttr);
      return new COMMIT3Response(Nfs3Status.NFS3ERR_IO, fileWcc,
          Nfs3Constant.WRITE_COMMIT_VERF);
    }
  }
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      return new PATHCONF3Response(Nfs3Status.NFS3ERR_IO);
    }
  }

  public COMMIT3Response commit(XDR xdr, RpcAuthSys authSys) {
    COMMIT3Response response = new COMMIT3Response(Nfs3Status.NFS3_OK);
    String uname = authSysCheck(authSys);
    DFSClient dfsClient = clientCache.get(uname);
    if (dfsClient == null) {
      response.setStatus(Nfs3Status.NFS3ERR_SERVERFAULT);
      return response;
    }
   
    COMMIT3Request request = null;
    try {
      request = new COMMIT3Request(xdr);
    } catch (IOException e) {
      LOG.error("Invalid COMMIT request");
      response.setStatus(Nfs3Status.NFS3ERR_INVAL);
      return response;
    }

    FileHandle handle = request.getHandle();
    if (LOG.isDebugEnabled()) {
      LOG.debug("NFS COMMIT fileId: " + handle.getFileId() + " offset="
          + request.getOffset() + " count=" + request.getCount());
    }

    String fileIdPath = Nfs3Utils.getFileIdPath(handle);
    WccAttr preOpAttr = null;
    try {
      preOpAttr = Nfs3Utils.getWccAttr(dfsClient, fileIdPath);
      if (preOpAttr == null) {
        LOG.info("Can't get path for fileId:" + handle.getFileId());
        return new COMMIT3Response(Nfs3Status.NFS3ERR_STALE);
      }
      long commitOffset = (request.getCount() == 0) ? 0
          : (request.getOffset() + request.getCount());
     
      int status;
      if (writeManager.handleCommit(handle, commitOffset)) {
        status = Nfs3Status.NFS3_OK;
      } else {
        status = Nfs3Status.NFS3ERR_IO;
      }
      Nfs3FileAttributes postOpAttr = writeManager.getFileAttr(dfsClient,
          handle, iug);
      WccData fileWcc = new WccData(preOpAttr, postOpAttr);
      return new COMMIT3Response(status, fileWcc,
          Nfs3Constant.WRITE_COMMIT_VERF);

    } catch (IOException e) {
      LOG.warn("Exception ", e);
      Nfs3FileAttributes postOpAttr = null;
      try {
        postOpAttr = writeManager.getFileAttr(dfsClient, handle, iug);
      } catch (IOException e1) {
        LOG.info("Can't get postOpAttr for fileId: " + handle.getFileId());
      }
      WccData fileWcc = new WccData(preOpAttr, postOpAttr);
      return new COMMIT3Response(Nfs3Status.NFS3ERR_IO, fileWcc,
          Nfs3Constant.WRITE_COMMIT_VERF);
    }
  }
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    // Send response for the ready commits
    while (entry != null && entry.getValue().offset <= flushedOffset) {
      pendingCommits.remove(entry.getKey());
      CommitCtx commit = entry.getValue();

      COMMIT3Response response = new COMMIT3Response(status, wccData,
          Nfs3Constant.WRITE_COMMIT_VERF);
      Nfs3Utils.writeChannelCommit(commit.getChannel(), response
          .writeHeaderAndResponse(new XDR(), commit.getXid(),
              new VerifierNone()), commit.getXid());
     
      if (LOG.isDebugEnabled()) {
        LOG.debug("FileId: " + latestAttr.getFileid() + " Service time:"
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