Package org.apache.hadoop.nfs.nfs3.request

Examples of org.apache.hadoop.nfs.nfs3.request.WRITE3Request

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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());
      }
      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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    for (int i = 0; i < len; i++) {
      buffer.put((byte) i);
    }
    buffer.flip();
    int originalCount = buffer.array().length;
    WRITE3Request request = new WRITE3Request(new FileHandle(), 0, data.length,
        WriteStableHow.UNSTABLE, buffer);

    WriteCtx writeCtx1 = new WriteCtx(request.getHandle(), request.getOffset(),
        request.getCount(), WriteCtx.INVALID_ORIGINAL_COUNT,
        request.getStableHow(), request.getData(), null, 1, false,
        WriteCtx.DataState.NO_DUMP);

    Assert.assertTrue(writeCtx1.getData().array().length == originalCount);

    // Now change the write request
    OpenFileCtx.alterWriteRequest(request, 12);

    WriteCtx writeCtx2 = new WriteCtx(request.getHandle(), request.getOffset(),
        request.getCount(), originalCount, request.getStableHow(),
        request.getData(), null, 2, false, WriteCtx.DataState.NO_DUMP);
    ByteBuffer appendedData = writeCtx2.getData();

    int position = appendedData.position();
    int limit = appendedData.limit();
    Assert.assertTrue(position == 12);
    Assert.assertTrue(limit - position == 8);
    Assert.assertTrue(appendedData.get(position) == (byte) 12);
    Assert.assertTrue(appendedData.get(position + 1) == (byte) 13);
    Assert.assertTrue(appendedData.get(position + 2) == (byte) 14);
    Assert.assertTrue(appendedData.get(position + 7) == (byte) 19);

    // Test current file write offset is at boundaries
    buffer.position(0);
    request = new WRITE3Request(new FileHandle(), 0, data.length,
        WriteStableHow.UNSTABLE, buffer);
    OpenFileCtx.alterWriteRequest(request, 1);
    WriteCtx writeCtx3 = new WriteCtx(request.getHandle(), request.getOffset(),
        request.getCount(), originalCount, request.getStableHow(),
        request.getData(), null, 2, false, WriteCtx.DataState.NO_DUMP);
    appendedData = writeCtx3.getData();
    position = appendedData.position();
    limit = appendedData.limit();
    Assert.assertTrue(position == 1);
    Assert.assertTrue(limit - position == 19);
    Assert.assertTrue(appendedData.get(position) == (byte) 1);
    Assert.assertTrue(appendedData.get(position + 18) == (byte) 19);

    // Reset buffer position before test another boundary
    buffer.position(0);
    request = new WRITE3Request(new FileHandle(), 0, data.length,
        WriteStableHow.UNSTABLE, buffer);
    OpenFileCtx.alterWriteRequest(request, 19);
    WriteCtx writeCtx4 = new WriteCtx(request.getHandle(), request.getOffset(),
        request.getCount(), originalCount, request.getStableHow(),
        request.getData(), null, 2, false, WriteCtx.DataState.NO_DUMP);
    appendedData = writeCtx4.getData();
    position = appendedData.position();
    limit = appendedData.limit();
    Assert.assertTrue(position == 19);
    Assert.assertTrue(limit - position == 1);
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    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;
  }
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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());
      }
      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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    request.writeInt(0); // auth null
    request.writeInt(0); // length zero
    // verifier
    request.writeInt(0); // auth null
    request.writeInt(0); // length zero
    WRITE3Request write1 = new WRITE3Request(handle, offset, count,
        WriteStableHow.UNSTABLE, ByteBuffer.wrap(data));
    write1.serialize(request);
    return request;
  }
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    request.writeInt(0); // auth null
    request.writeInt(0); // length zero
    // verifier
    request.writeInt(0); // auth null
    request.writeInt(0); // length zero
    WRITE3Request write1 = new WRITE3Request(handle, offset, count,
        WriteStableHow.UNSTABLE, ByteBuffer.wrap(data));
    write1.serialize(request);
    return request;
  }
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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 (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());
      }
      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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    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;
  }
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    for (int i = 0; i < len; i++) {
      buffer.put((byte) i);
    }
    buffer.flip();
    int originalCount = buffer.array().length;
    WRITE3Request request = new WRITE3Request(new FileHandle(), 0, data.length,
        WriteStableHow.UNSTABLE, buffer);

    WriteCtx writeCtx1 = new WriteCtx(request.getHandle(), request.getOffset(),
        request.getCount(), WriteCtx.INVALID_ORIGINAL_COUNT,
        request.getStableHow(), request.getData(), null, 1, false,
        WriteCtx.DataState.NO_DUMP);

    Assert.assertTrue(writeCtx1.getData().array().length == originalCount);

    // Now change the write request
    OpenFileCtx.alterWriteRequest(request, 12);

    WriteCtx writeCtx2 = new WriteCtx(request.getHandle(), request.getOffset(),
        request.getCount(), originalCount, request.getStableHow(),
        request.getData(), null, 2, false, WriteCtx.DataState.NO_DUMP);
    ByteBuffer appendedData = writeCtx2.getData();

    int position = appendedData.position();
    int limit = appendedData.limit();
    Assert.assertTrue(position == 12);
    Assert.assertTrue(limit - position == 8);
    Assert.assertTrue(appendedData.get(position) == (byte) 12);
    Assert.assertTrue(appendedData.get(position + 1) == (byte) 13);
    Assert.assertTrue(appendedData.get(position + 2) == (byte) 14);
    Assert.assertTrue(appendedData.get(position + 7) == (byte) 19);

    // Test current file write offset is at boundaries
    buffer.position(0);
    request = new WRITE3Request(new FileHandle(), 0, data.length,
        WriteStableHow.UNSTABLE, buffer);
    OpenFileCtx.alterWriteRequest(request, 1);
    WriteCtx writeCtx3 = new WriteCtx(request.getHandle(), request.getOffset(),
        request.getCount(), originalCount, request.getStableHow(),
        request.getData(), null, 2, false, WriteCtx.DataState.NO_DUMP);
    appendedData = writeCtx3.getData();
    position = appendedData.position();
    limit = appendedData.limit();
    Assert.assertTrue(position == 1);
    Assert.assertTrue(limit - position == 19);
    Assert.assertTrue(appendedData.get(position) == (byte) 1);
    Assert.assertTrue(appendedData.get(position + 18) == (byte) 19);

    // Reset buffer position before test another boundary
    buffer.position(0);
    request = new WRITE3Request(new FileHandle(), 0, data.length,
        WriteStableHow.UNSTABLE, buffer);
    OpenFileCtx.alterWriteRequest(request, 19);
    WriteCtx writeCtx4 = new WriteCtx(request.getHandle(), request.getOffset(),
        request.getCount(), originalCount, request.getStableHow(),
        request.getData(), null, 2, false, WriteCtx.DataState.NO_DUMP);
    appendedData = writeCtx4.getData();
    position = appendedData.position();
    limit = appendedData.limit();
    Assert.assertTrue(position == 19);
    Assert.assertTrue(limit - position == 1);
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      // Test DATA_SYNC
      byte[] buffer = new byte[10];
      for (int i = 0; i < 10; i++) {
        buffer[i] = (byte) i;
      }
      WRITE3Request writeReq = new WRITE3Request(handle, 0, 10,
          WriteStableHow.DATA_SYNC, ByteBuffer.wrap(buffer));
      XDR writeXdr = new XDR();
      writeReq.serialize(writeXdr);
      nfsd.write(writeXdr.asReadOnlyWrap(), null, 1, securityHandler,
          InetAddress.getLocalHost());

      waitWrite(nfsd, handle, 60000);

      // Readback
      READ3Request readReq = new READ3Request(handle, 0, 10);
      XDR readXdr = new XDR();
      readReq.serialize(readXdr);
      READ3Response readRsp = nfsd.read(readXdr.asReadOnlyWrap(),
          securityHandler, InetAddress.getLocalHost());

      assertTrue(Arrays.equals(buffer, readRsp.getData().array()));

      // Test FILE_SYNC

      // Create file2
      CREATE3Request createReq2 = new CREATE3Request(rootHandle, "file2",
          Nfs3Constant.CREATE_UNCHECKED, new SetAttr3(), 0);
      XDR createXdr2 = new XDR();
      createReq2.serialize(createXdr2);
      CREATE3Response createRsp2 = nfsd.create(createXdr2.asReadOnlyWrap(),
          securityHandler, InetAddress.getLocalHost());
      FileHandle handle2 = createRsp2.getObjHandle();

      WRITE3Request writeReq2 = new WRITE3Request(handle2, 0, 10,
          WriteStableHow.FILE_SYNC, ByteBuffer.wrap(buffer));
      XDR writeXdr2 = new XDR();
      writeReq2.serialize(writeXdr2);
      nfsd.write(writeXdr2.asReadOnlyWrap(), null, 1, securityHandler,
          InetAddress.getLocalHost());

      waitWrite(nfsd, handle2, 60000);
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Related Classes of org.apache.hadoop.nfs.nfs3.request.WRITE3Request

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