Package gnu.java.nio

Examples of gnu.java.nio.VMChannel$FileHandle

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    throws IOException
  {
    String path = file.getPath();
    description = path;
    this.mode = mode;
    this.ch = new VMChannel();
    ch.openFile(path, mode);

    // First open the file and then check if it is a directory
    // to avoid race condition.
    if ((mode & WRITE) == 0 && file.isDirectory())
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}

static boolean create(String path)
  throws IOException
{
  VMChannel ch =
   VMAccessorGnuJavaNio.createUnlessExistsVMChannel(new File(path));
  if (ch == null)
   return false;
  try
  {
   ch.close();
  }
  catch (IOException e) {}
  return true;
}
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   *        datagram sockets
   */
  protected synchronized void create(boolean stream) throws IOException
  {
    channel = new SocketChannelImpl(false);
    VMChannel vmchannel = channel.getVMChannel();
    vmchannel.initSocket(stream);
    channel.configureBlocking(true);
    impl.getState().setChannelFD(vmchannel.getState());
    if (initialTimeout != 0)
      {
        /* Pass the timeout value to the native layer. */
        impl.setOption(SO_TIMEOUT, new Integer(initialTimeout));
        initialTimeout = 0; /* clear initial value */
 
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        create(true);
    if (!(impl instanceof PlainSocketImpl))
      throw new IOException("incompatible SocketImpl: "
                            + impl.getClass().getName());
    PlainSocketImpl that = (PlainSocketImpl) impl;
    VMChannel c = channel.getVMChannel().accept();
    that.impl.getState().setChannelFD(c.getState());
    that.channel = new SocketChannelImpl(c);
    that.setOption(SO_REUSEADDR, Boolean.TRUE);
    // Reset the inherited timeout.
    that.setOption(SO_TIMEOUT, Integer.valueOf(0));
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    progName = "";
   }
  int bufLen = getSpawnWorkBufSize0(cmdZBlock, envZBlock, cmd.length,
                env != null ? env.length : 0);
  byte[] workBuf = new byte[bufLen >= 0 ? bufLen : -1 >>> 1];
  VMChannel inCh = new VMChannel();
  VMChannel outCh = new VMChannel();
  VMChannel errCh = redirect ? null : new VMChannel();
  int[] fdsArr = { -1, -1, -1 };
  long[] pidArr = new long[1];
  boolean retrying = false;
  do
  {
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    } catch (IOException e) {
      LOG.error("Invalid PATHCONF request");
      return new PATHCONF3Response(Nfs3Status.NFS3ERR_INVAL);
    }

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

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

    try {
      attrs = Nfs3Utils.getFileAttr(dfsClient, Nfs3Utils.getFileIdPath(handle),
          iug);
      if (attrs == null) {
        LOG.info("Can't get path for fileId:" + handle.getFileId());
        return new PATHCONF3Response(Nfs3Status.NFS3ERR_STALE);
      }

      return new PATHCONF3Response(Nfs3Status.NFS3_OK, attrs, 0,
          HdfsConstants.MAX_PATH_LENGTH, true, false, false, true);
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      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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      LOG.error("Invalid GETATTR request");
      response.setStatus(Nfs3Status.NFS3ERR_INVAL);
      return response;
    }

    FileHandle handle = request.getHandle();
    if (LOG.isTraceEnabled()) {
      LOG.trace("GETATTR for fileId: " + handle.getFileId());
    }

    Nfs3FileAttributes attrs = null;
    try {
      attrs = writeManager.getFileAttr(dfsClient, handle, iug);
    } 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 GETATTR3Response(Nfs3Status.NFS3ERR_ACCES);
      } else {
        return new GETATTR3Response(Nfs3Status.NFS3ERR_IO);
      }
    } catch (IOException e) {
      LOG.info("Can't get file attribute, fileId=" + handle.getFileId(), e);
      response.setStatus(Nfs3Status.NFS3ERR_IO);
      return response;
    }
    if (attrs == null) {
      LOG.error("Can't get path for fileId:" + handle.getFileId());
      response.setStatus(Nfs3Status.NFS3ERR_STALE);
      return response;
    }
    response.setPostOpAttr(attrs);
    return response;
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      LOG.error("Invalid SETATTR request");
      response.setStatus(Nfs3Status.NFS3ERR_INVAL);
      return response;
    }

    FileHandle handle = request.getHandle();
    if (LOG.isDebugEnabled()) {
      LOG.debug("NFS SETATTR fileId: " + handle.getFileId());
    }

    if (request.getAttr().getUpdateFields().contains(SetAttrField.SIZE)) {
      LOG.error("Setting file size is not supported when setattr, fileId: "
          + handle.getFileId());
      response.setStatus(Nfs3Status.NFS3ERR_INVAL);
      return response;
    }

    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());
        response.setStatus(Nfs3Status.NFS3ERR_STALE);
        return response;
      }
      WccAttr preOpWcc = Nfs3Utils.getWccAttr(preOpAttr);
      if (request.isCheck()) {
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    } catch (IOException e) {
      LOG.error("Invalid LOOKUP request");
      return new LOOKUP3Response(Nfs3Status.NFS3ERR_INVAL);
    }

    FileHandle dirHandle = request.getHandle();
    String fileName = request.getName();
    if (LOG.isDebugEnabled()) {
      LOG.debug("NFS LOOKUP dir fileId: " + dirHandle.getFileId() + " name: "
          + fileName);
    }

    try {
      String dirFileIdPath = Nfs3Utils.getFileIdPath(dirHandle);
      Nfs3FileAttributes postOpObjAttr = writeManager.getFileAttr(dfsClient,
          dirHandle, fileName);
      if (postOpObjAttr == null) {
        if (LOG.isDebugEnabled()) {
          LOG.debug("NFS LOOKUP fileId: " + dirHandle.getFileId() + " name:"
              + fileName + " does not exist");
        }
        Nfs3FileAttributes postOpDirAttr = Nfs3Utils.getFileAttr(dfsClient,
            dirFileIdPath, iug);
        return new LOOKUP3Response(Nfs3Status.NFS3ERR_NOENT, null, null,
            postOpDirAttr);
      }

      Nfs3FileAttributes postOpDirAttr = Nfs3Utils.getFileAttr(dfsClient,
          dirFileIdPath, iug);
      if (postOpDirAttr == null) {
        LOG.info("Can't get path for dir fileId:" + dirHandle.getFileId());
        return new LOOKUP3Response(Nfs3Status.NFS3ERR_STALE);
      }
      FileHandle fileHandle = new FileHandle(postOpObjAttr.getFileId());
      return new LOOKUP3Response(Nfs3Status.NFS3_OK, fileHandle, postOpObjAttr,
          postOpDirAttr);

    } catch (IOException e) {
      LOG.warn("Exception ", e);
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Related Classes of gnu.java.nio.VMChannel$FileHandle

  • gnu.java.net.PlainSocketImpl
  • gnu.java.nio.FileChannelImpl
  • org.apache.hadoop.hdfs.nfs.mount.RpcProgramMountd
  • org.apache.hadoop.hdfs.nfs.nfs3.OpenFileCtx
  • org.apache.hadoop.hdfs.nfs.nfs3.OpenFileCtxCache
  • org.apache.hadoop.hdfs.nfs.nfs3.RpcProgramNfs3
  • org.apache.hadoop.hdfs.nfs.nfs3.TestClientAccessPrivilege
  • org.apache.hadoop.hdfs.nfs.nfs3.TestOpenFileCtxCache
  • org.apache.hadoop.hdfs.nfs.nfs3.TestReaddir
  • org.apache.hadoop.hdfs.nfs.nfs3.TestWrites
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