Examples with FileHandle org.apache.hadoop.nfs.nfs3.FileHandle used on opensource projects

Example 56 with FileHandle

use of org.apache.hadoop.nfs.nfs3.FileHandle in project hadoop by apache.

the class RpcProgramNfs3 method rmdir.

@VisibleForTesting
RMDIR3Response rmdir(XDR xdr, SecurityHandler securityHandler, SocketAddress remoteAddress) {
    RMDIR3Response response = new RMDIR3Response(Nfs3Status.NFS3_OK);
    DFSClient dfsClient = clientCache.getDfsClient(securityHandler.getUser());
    if (dfsClient == null) {
        response.setStatus(Nfs3Status.NFS3ERR_SERVERFAULT);
        return response;
    }
    RMDIR3Request request;
    try {
        request = RMDIR3Request.deserialize(xdr);
    } catch (IOException e) {
        LOG.error("Invalid RMDIR request");
        return new RMDIR3Response(Nfs3Status.NFS3ERR_INVAL);
    }
    FileHandle dirHandle = request.getHandle();
    String fileName = request.getName();
    if (LOG.isDebugEnabled()) {
        LOG.debug("NFS RMDIR dir fileId: " + dirHandle.getFileId() + " fileName: " + fileName + " client: " + remoteAddress);
    }
    String dirFileIdPath = Nfs3Utils.getFileIdPath(dirHandle);
    Nfs3FileAttributes preOpDirAttr = null;
    Nfs3FileAttributes postOpDirAttr = null;
    try {
        preOpDirAttr = Nfs3Utils.getFileAttr(dfsClient, dirFileIdPath, iug);
        if (preOpDirAttr == null) {
            LOG.info("Can't get path for dir fileId: " + dirHandle.getFileId());
            return new RMDIR3Response(Nfs3Status.NFS3ERR_STALE);
        }
        WccData errWcc = new WccData(Nfs3Utils.getWccAttr(preOpDirAttr), preOpDirAttr);
        if (!checkAccessPrivilege(remoteAddress, AccessPrivilege.READ_WRITE)) {
            return new RMDIR3Response(Nfs3Status.NFS3ERR_ACCES, errWcc);
        }
        String fileIdPath = dirFileIdPath + "/" + fileName;
        HdfsFileStatus fstat = Nfs3Utils.getFileStatus(dfsClient, fileIdPath);
        if (fstat == null) {
            return new RMDIR3Response(Nfs3Status.NFS3ERR_NOENT, errWcc);
        }
        if (!fstat.isDir()) {
            return new RMDIR3Response(Nfs3Status.NFS3ERR_NOTDIR, errWcc);
        }
        if (fstat.getChildrenNum() > 0) {
            return new RMDIR3Response(Nfs3Status.NFS3ERR_NOTEMPTY, errWcc);
        }
        boolean result = dfsClient.delete(fileIdPath, false);
        WccData dirWcc = Nfs3Utils.createWccData(Nfs3Utils.getWccAttr(preOpDirAttr), dfsClient, dirFileIdPath, iug);
        if (!result) {
            return new RMDIR3Response(Nfs3Status.NFS3ERR_ACCES, dirWcc);
        }
        return new RMDIR3Response(Nfs3Status.NFS3_OK, dirWcc);
    } catch (IOException e) {
        LOG.warn("Exception ", e);
        // Try to return correct WccData
        if (postOpDirAttr == null) {
            try {
                postOpDirAttr = Nfs3Utils.getFileAttr(dfsClient, dirFileIdPath, iug);
            } catch (IOException e1) {
                LOG.info("Can't get postOpDirAttr for " + dirFileIdPath, e1);
            }
        }
        WccData dirWcc = new WccData(Nfs3Utils.getWccAttr(preOpDirAttr), postOpDirAttr);
        int status = mapErrorStatus(e);
        return new RMDIR3Response(status, dirWcc);
    }
}

Example 57 with FileHandle

use of org.apache.hadoop.nfs.nfs3.FileHandle in project hadoop by apache.

the class RpcProgramNfs3 method mkdir.

@VisibleForTesting
MKDIR3Response mkdir(XDR xdr, SecurityHandler securityHandler, SocketAddress remoteAddress) {
    MKDIR3Response response = new MKDIR3Response(Nfs3Status.NFS3_OK);
    DFSClient dfsClient = clientCache.getDfsClient(securityHandler.getUser());
    if (dfsClient == null) {
        response.setStatus(Nfs3Status.NFS3ERR_SERVERFAULT);
        return response;
    }
    MKDIR3Request request;
    try {
        request = MKDIR3Request.deserialize(xdr);
    } catch (IOException e) {
        LOG.error("Invalid MKDIR request");
        return new MKDIR3Response(Nfs3Status.NFS3ERR_INVAL);
    }
    FileHandle dirHandle = request.getHandle();
    String fileName = request.getName();
    if (LOG.isDebugEnabled()) {
        LOG.debug("NFS MKDIR dirId: " + dirHandle.getFileId() + " filename: " + fileName + " client: " + remoteAddress);
    }
    if (request.getObjAttr().getUpdateFields().contains(SetAttrField.SIZE)) {
        LOG.error("Setting file size is not supported when mkdir: " + fileName + " in dirHandle" + dirHandle);
        return new MKDIR3Response(Nfs3Status.NFS3ERR_INVAL);
    }
    String dirFileIdPath = Nfs3Utils.getFileIdPath(dirHandle);
    Nfs3FileAttributes preOpDirAttr = null;
    Nfs3FileAttributes postOpDirAttr = null;
    Nfs3FileAttributes postOpObjAttr = null;
    FileHandle objFileHandle = null;
    try {
        preOpDirAttr = Nfs3Utils.getFileAttr(dfsClient, dirFileIdPath, iug);
        if (preOpDirAttr == null) {
            LOG.info("Can't get path for dir fileId: " + dirHandle.getFileId());
            return new MKDIR3Response(Nfs3Status.NFS3ERR_STALE);
        }
        if (!checkAccessPrivilege(remoteAddress, AccessPrivilege.READ_WRITE)) {
            return new MKDIR3Response(Nfs3Status.NFS3ERR_ACCES, null, preOpDirAttr, new WccData(Nfs3Utils.getWccAttr(preOpDirAttr), preOpDirAttr));
        }
        final String fileIdPath = dirFileIdPath + "/" + fileName;
        SetAttr3 setAttr3 = request.getObjAttr();
        FsPermission permission = setAttr3.getUpdateFields().contains(SetAttrField.MODE) ? new FsPermission((short) setAttr3.getMode()) : FsPermission.getDefault().applyUMask(umask);
        if (!dfsClient.mkdirs(fileIdPath, permission, false)) {
            WccData dirWcc = Nfs3Utils.createWccData(Nfs3Utils.getWccAttr(preOpDirAttr), dfsClient, dirFileIdPath, iug);
            return new MKDIR3Response(Nfs3Status.NFS3ERR_IO, null, null, dirWcc);
        }
        // Set group if it's not specified in the request.
        if (!setAttr3.getUpdateFields().contains(SetAttrField.GID)) {
            setAttr3.getUpdateFields().add(SetAttrField.GID);
            setAttr3.setGid(securityHandler.getGid());
        }
        setattrInternal(dfsClient, fileIdPath, setAttr3, false);
        postOpObjAttr = Nfs3Utils.getFileAttr(dfsClient, fileIdPath, iug);
        objFileHandle = new FileHandle(postOpObjAttr.getFileId());
        WccData dirWcc = Nfs3Utils.createWccData(Nfs3Utils.getWccAttr(preOpDirAttr), dfsClient, dirFileIdPath, iug);
        return new MKDIR3Response(Nfs3Status.NFS3_OK, new FileHandle(postOpObjAttr.getFileId()), postOpObjAttr, dirWcc);
    } catch (IOException e) {
        LOG.warn("Exception ", e);
        // Try to return correct WccData
        if (postOpDirAttr == null) {
            try {
                postOpDirAttr = Nfs3Utils.getFileAttr(dfsClient, dirFileIdPath, iug);
            } catch (IOException e1) {
                LOG.info("Can't get postOpDirAttr for " + dirFileIdPath, e);
            }
        }
        WccData dirWcc = new WccData(Nfs3Utils.getWccAttr(preOpDirAttr), postOpDirAttr);
        int status = mapErrorStatus(e);
        return new MKDIR3Response(status, objFileHandle, postOpObjAttr, dirWcc);
    }
}

Example 58 with FileHandle

use of org.apache.hadoop.nfs.nfs3.FileHandle in project hadoop by apache.

the class WriteManager method getFileAttr.

/**
   * If the file is in cache, update the size based on the cached data size
   */
Nfs3FileAttributes getFileAttr(DFSClient client, FileHandle fileHandle, IdMappingServiceProvider iug) throws IOException {
    String fileIdPath = Nfs3Utils.getFileIdPath(fileHandle);
    Nfs3FileAttributes attr = Nfs3Utils.getFileAttr(client, fileIdPath, iug);
    if (attr != null) {
        OpenFileCtx openFileCtx = fileContextCache.get(fileHandle);
        if (openFileCtx != null) {
            attr.setSize(openFileCtx.getNextOffset());
            attr.setUsed(openFileCtx.getNextOffset());
        }
    }
    return attr;
}

Example 59 with FileHandle

use of org.apache.hadoop.nfs.nfs3.FileHandle in project hadoop by apache.

the class TestOutOfOrderWrite method create.

static XDR create() {
    XDR request = new XDR();
    RpcCall.getInstance(0x8000004c, Nfs3Constant.PROGRAM, Nfs3Constant.VERSION, Nfs3Constant.NFSPROC3.CREATE.getValue(), new CredentialsNone(), new VerifierNone()).write(request);
    SetAttr3 objAttr = new SetAttr3();
    CREATE3Request createReq = new CREATE3Request(new FileHandle("/"), "out-of-order-write" + System.currentTimeMillis(), 0, objAttr, 0);
    createReq.serialize(request);
    return request;
}

Example 60 with FileHandle

use of org.apache.hadoop.nfs.nfs3.FileHandle in project hadoop by apache.

the class TestOutOfOrderWrite method write.

static XDR write(FileHandle handle, int xid, long offset, int count, byte[] data) {
    XDR request = new XDR();
    RpcCall.getInstance(xid, Nfs3Constant.PROGRAM, Nfs3Constant.VERSION, Nfs3Constant.NFSPROC3.CREATE.getValue(), new CredentialsNone(), new VerifierNone()).write(request);
    WRITE3Request write1 = new WRITE3Request(handle, offset, count, WriteStableHow.UNSTABLE, ByteBuffer.wrap(data));
    write1.serialize(request);
    return request;
}