io.airlift.slice.Slice.setBytes()方法的使用及代码示例

x33g5p2x  于2022-01-29 转载在 其他  
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本文整理了Java中io.airlift.slice.Slice.setBytes()方法的一些代码示例,展示了Slice.setBytes()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台,是从一些精选项目中提取出来的代码,具有较强的参考意义,能在一定程度帮忙到你。Slice.setBytes()方法的具体详情如下:
包路径:io.airlift.slice.Slice
类名称:Slice
方法名:setBytes

Slice.setBytes介绍

[英]Transfers data from the specified slice into this buffer starting at the specified absolute index.
[中]从指定的绝对索引开始,将数据从指定的片传输到此缓冲区。

代码示例

代码示例来源:origin: prestodb/presto

@Override
public void writeBytes(InputStream in, int length)
    throws IOException
{
  while (length > 0) {
    int batch = tryEnsureBatchSize(length);
    slice.setBytes(bufferPosition, in, batch);
    bufferPosition += batch;
    length -= batch;
  }
}

代码示例来源:origin: prestodb/presto

@Override
public void writeBytes(InputStream in, int length)
    throws IOException
{
  while (length > 0) {
    int batch = ensureBatchSize(length);
    slice.setBytes(bufferPosition, in, batch);
    bufferPosition += batch;
    length -= batch;
  }
}

代码示例来源:origin: prestodb/presto

@Override
public void writeBytes(Slice source, int sourceIndex, int length)
{
  while (length > 0) {
    int batch = tryEnsureBatchSize(length);
    slice.setBytes(bufferPosition, source, sourceIndex, batch);
    bufferPosition += batch;
    sourceIndex += batch;
    length -= batch;
  }
}

代码示例来源:origin: prestodb/presto

@Override
public void writeBytes(Slice source, int sourceIndex, int length)
{
  while (length > 0) {
    int batch = tryEnsureBatchSize(length);
    slice.setBytes(bufferPosition, source, sourceIndex, batch);
    bufferPosition += batch;
    sourceIndex += batch;
    length -= batch;
  }
}

代码示例来源:origin: prestodb/presto

@Override
public void writeBytes(InputStream in, int length)
    throws IOException
{
  while (length > 0) {
    int batch = tryEnsureBatchSize(length);
    slice.setBytes(bufferPosition, in, batch);
    bufferPosition += batch;
    length -= batch;
  }
}

代码示例来源:origin: prestodb/presto

@Override
public void writeBytes(InputStream in, int length)
    throws IOException
{
  while (length > 0) {
    int batch = ensureBatchSize(length);
    slice.setBytes(bufferPosition, in, batch);
    bufferPosition += batch;
    length -= batch;
  }
}

代码示例来源:origin: prestodb/presto

@Override
public void writeBytes(byte[] source, int sourceIndex, int length)
{
  while (length > 0) {
    int batch = tryEnsureBatchSize(length);
    slice.setBytes(bufferPosition, source, sourceIndex, batch);
    bufferPosition += batch;
    sourceIndex += batch;
    length -= batch;
  }
}

代码示例来源:origin: prestodb/presto

@Override
public void writeBytes(byte[] source, int sourceIndex, int length)
{
  while (length > 0) {
    int batch = tryEnsureBatchSize(length);
    slice.setBytes(bufferPosition, source, sourceIndex, batch);
    bufferPosition += batch;
    sourceIndex += batch;
    length -= batch;
  }
}

代码示例来源:origin: prestodb/presto

public static Slice pack(BigInteger unscaledValue, Slice result)
{
  pack(0, 0, false, result);
  byte[] bytes = unscaledValue.abs().toByteArray();
  if (bytes.length > UNSCALED_DECIMAL_128_SLICE_LENGTH
      || (bytes.length == UNSCALED_DECIMAL_128_SLICE_LENGTH && (bytes[0] & SIGN_BYTE_MASK) != 0)) {
    throwOverflowException();
  }
  // convert to little-endian order
  reverse(bytes);
  result.setBytes(0, bytes);
  if (unscaledValue.signum() < 0) {
    setNegative(result, true);
  }
  throwIfOverflows(result);
  return result;
}

代码示例来源:origin: prestodb/presto

@Override
public void writeBytes(Slice source, int sourceIndex, int length)
{
  if (length >= CHUNK_SIZE) {
    if (bufferPosition > 0) {
      // fill up the current buffer
      int flushLength = getFreeBufferLength();
      slice.setBytes(bufferPosition, source, sourceIndex, flushLength);
      bufferPosition = CHUNK_SIZE;
      flushBufferToOutputStream();
      sourceIndex += flushLength;
      length -= flushLength;
    }
    // line up the chunk to chunk size and flush directly to OutputStream
    while (length >= CHUNK_SIZE) {
      writeToOutputStream(source, sourceIndex, CHUNK_SIZE);
      sourceIndex += CHUNK_SIZE;
      length -= CHUNK_SIZE;
      bufferOffset += CHUNK_SIZE;
    }
  }
  if (length > 0) {
    // buffer the remaining data
    ensureWritableBytes(length);
    slice.setBytes(bufferPosition, source, sourceIndex, length);
    bufferPosition += length;
  }
}

代码示例来源:origin: prestodb/presto

@Override
public void writeBytes(byte[] source, int sourceIndex, int length)
{
  if (length >= CHUNK_SIZE) {
    if (bufferPosition > 0) {
      // fill up the current buffer
      int flushLength = getFreeBufferLength();
      slice.setBytes(bufferPosition, source, sourceIndex, flushLength);
      bufferPosition = CHUNK_SIZE;
      flushBufferToOutputStream();
      sourceIndex += flushLength;
      length -= flushLength;
    }
    // line up the chunk to chunk size and flush directly to OutputStream
    while (length >= CHUNK_SIZE) {
      writeToOutputStream(source, sourceIndex, CHUNK_SIZE);
      sourceIndex += CHUNK_SIZE;
      length -= CHUNK_SIZE;
      bufferOffset += CHUNK_SIZE;
    }
  }
  if (length > 0) {
    // buffer the remaining data
    ensureWritableBytes(length);
    slice.setBytes(bufferPosition, source, sourceIndex, length);
    bufferPosition += length;
  }
}

代码示例来源:origin: prestodb/presto

@Override
public void writeBytes(byte[] source, int sourceIndex, int length)
{
  // Write huge chunks direct to OutputStream
  if (length >= DIRECT_FLUSH_SIZE) {
    // todo fill buffer before flushing
    flushBufferToOutputStream();
    writeDirectlyToOutputStream(source, sourceIndex, length);
    bufferOffset += length;
  }
  else {
    ensureWritableBytes(length);
    slice.setBytes(bufferPosition, source, sourceIndex, length);
    bufferPosition += length;
  }
}

代码示例来源:origin: prestodb/presto

@Override
public void decompress(Slice compressed, Slice uncompressed)
    throws RcFileCorruptionException
{
  checkState(!destroyed, "Codec has been destroyed");
  decompressor.reset();
  try (CompressionInputStream decompressorStream = codec.createInputStream(compressed.getInput(), decompressor)) {
    uncompressed.setBytes(0, decompressorStream, uncompressed.length());
  }
  catch (IndexOutOfBoundsException | IOException e) {
    throw new RcFileCorruptionException(e, "Compressed stream is truncated");
  }
}

代码示例来源:origin: prestodb/presto

@Override
public void decompress(Slice compressed, Slice uncompressed)
    throws RcFileCorruptionException
{
  try (CompressionInputStream decompressorStream = codec.createInputStream(compressed.getInput())) {
    uncompressed.setBytes(0, decompressorStream, uncompressed.length());
  }
  catch (IndexOutOfBoundsException | IOException e) {
    throw new RcFileCorruptionException(e, "Compressed stream is truncated");
  }
}

代码示例来源:origin: prestodb/presto

public static byte[] serializeModels(Model... models)
{
  List<byte[]> serializedModels = new ArrayList<>();
  int size = SIZE_OF_INT + SIZE_OF_INT * models.length;
  for (Model model : models) {
    byte[] bytes = serialize(model).getBytes();
    size += bytes.length;
    serializedModels.add(bytes);
  }
  Slice slice = Slices.allocate(size);
  slice.setInt(0, models.length);
  for (int i = 0; i < models.length; i++) {
    slice.setInt(SIZE_OF_INT * (i + 1), serializedModels.get(i).length);
  }
  int offset = SIZE_OF_INT + SIZE_OF_INT * models.length;
  for (byte[] bytes : serializedModels) {
    slice.setBytes(offset, bytes);
    offset += bytes.length;
  }
  return slice.getBytes();
}

代码示例来源:origin: prestodb/presto

buffer.setBytes(startPointOfExistingText, inputSlice);
  buffer.setBytes(byteIndex, padSlice);
  byteIndex += padSlice.length();
buffer.setBytes(byteIndex, padSlice.getBytes(0, paddingOffset + fillLength - byteIndex));

代码示例来源:origin: prestodb/presto

public static Slice padSpaces(Slice slice, int length)
{
  int textLength = countCodePoints(slice);
  // if our string is bigger than requested then truncate
  if (textLength > length) {
    throw new IllegalArgumentException("pad length is smaller than slice length");
  }
  // if our target length is the same as our string then return our string
  if (textLength == length) {
    return slice;
  }
  // preallocate the result
  int bufferSize = slice.length() + length - textLength;
  Slice buffer = Slices.allocate(bufferSize);
  // fill in the existing string
  buffer.setBytes(0, slice);
  // fill padding spaces
  for (int i = slice.length(); i < bufferSize; ++i) {
    buffer.setByte(i, ' ');
  }
  return buffer;
}

代码示例来源:origin: prestodb/presto

@Override
public void writeBytes(Slice source, int sourceIndex, int length)
{
  // Write huge chunks direct to OutputStream
  if (length >= DIRECT_FLUSH_SIZE) {
    flushBufferToOutputStream();
    writeDirectlyToOutputStream((byte[]) source.getBase(), sourceIndex + (int) (source.getAddress() - ARRAY_BYTE_BASE_OFFSET), length);
    bufferOffset += length;
  }
  else {
    ensureWritableBytes(length);
    slice.setBytes(bufferPosition, source, sourceIndex, length);
    bufferPosition += length;
  }
}

代码示例来源:origin: prestodb/presto

@Description("concatenates given character strings")
  @ScalarFunction
  @LiteralParameters({"x", "y", "u"})
  @Constraint(variable = "u", expression = "x + y")
  @SqlType("char(u)")
  public static Slice concat(@LiteralParameter("x") Long x, @SqlType("char(x)") Slice left, @SqlType("char(y)") Slice right)
  {
    int rightLength = right.length();
    if (rightLength == 0) {
      return left;
    }

    Slice paddedLeft = padSpaces(left, x.intValue());
    int leftLength = paddedLeft.length();

    Slice result = Slices.allocate(leftLength + rightLength);
    result.setBytes(0, paddedLeft);
    result.setBytes(leftLength, right);

    return result;
  }
}

代码示例来源:origin: prestodb/presto

private static List<Long> getSyncPositionsBruteForce(RcFileReader recordReader, File file)
{
  Slice slice = Slices.allocate((int) file.length());
  try (InputStream in = new FileInputStream(file)) {
    slice.setBytes(0, in, slice.length());
  }
  catch (IOException e) {
    throw new UncheckedIOException(e);
  }
  List<Long> syncPositionsBruteForce = new ArrayList<>();
  Slice sync = Slices.allocate(SIZE_OF_INT + SIZE_OF_LONG + SIZE_OF_LONG);
  sync.setInt(0, -1);
  sync.setBytes(SIZE_OF_INT, recordReader.getSync());
  long syncPosition = 0;
  while (syncPosition >= 0) {
    syncPosition = slice.indexOf(sync, (int) syncPosition);
    if (syncPosition > 0) {
      syncPositionsBruteForce.add(syncPosition);
      syncPosition++;
    }
  }
  return syncPositionsBruteForce;
}

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