Examples of io.netty.buffer.ByteBuf.nioBufferCount()

io.netty.buffer.ByteBuf.nioBufferCount()
Returns the maximum number of NIO {@link ByteBuffer}s that consist this buffer. Note that {@link #nioBuffers()}or {@link #nioBuffers(int,int)} might return a less number of {@link ByteBuffer}s. @return {@code -1} if this buffer has no underlying {@link ByteBuffer}. the number of the underlying {@link ByteBuffer}s if this buffer has at least one undelying {@link ByteBuffer}. Note that this method does not return {@code 0} to avoid confusion. @see #nioBuffer() @see #nioBuffer(int,int) @see #nioBuffers() @see #nioBuffers(int,int)

    Objects.requireNonNull(buffer, "buffer");
    Objects.requireNonNull(handler, "handler");
    Arguments.require(position >= 0, "position must be >= 0");
    check();
    ByteBuf buf = buffer.getByteBuf();
    if (buf.nioBufferCount() > 1) {
      Iterator<ByteBuffer> buffers = Arrays.asList(buf.nioBuffers()).iterator();
      doWrite(buffers, position, handler);
    } else {
      ByteBuffer bb = buf.nioBuffer();
      doWrite(bb, position, bb.limit(),  handler);

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        handleException(ar.cause());
      }
    };


    ByteBuf buf = buffer.getByteBuf();
    if (buf.nioBufferCount() > 1) {
      Iterator<ByteBuffer> buffers = Arrays.asList(buf.nioBuffers()).iterator();
      doWrite(buffers, writePos, handler);
    } else {
      ByteBuffer bb = buf.nioBuffer();
      doWrite(bb, writePos, bb.limit(), handler);

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                if (readableBytes > 0) {
                    nioBufferSize += readableBytes;
                    int count = entry.count;
                    if (count == -1) {
                        //noinspection ConstantValueVariableUse
                        entry.count = count =  buf.nioBufferCount();
                    }
                    int neededSpace = nioBufferCount + count;
                    if (neededSpace > nioBuffers.length) {
                        nioBuffers = expandNioBufferArray(nioBuffers, neededSpace, nioBufferCount);
                        NIO_BUFFERS.set(threadLocalMap, nioBuffers);

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  @Override
  public ByteBuffer nioBuffer(int index, int length) {
    if (components.size() == 1) {
      ByteBuf buf = components.get(0).buf;
      if (buf.nioBufferCount() == 1) {
        return components.get(0).buf.nioBuffer(index, length);
      }
    }
    ByteBuffer merged = ByteBuffer.allocate(length).order(order());
    ByteBuffer[] buffers = nioBuffers(index, length);

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      Component c = components.get(i);
      ByteBuf s = c.buf;
      int adjustment = c.offset;
      int localLength = Math.min(length, s.readableBytes()
          - (index - adjustment));
      switch (s.nioBufferCount()) {
      case 0:
        throw new UnsupportedOperationException();
      case 1:
        buffers.add(s.nioBuffer(index - adjustment, localLength));
        break;

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                if (readableBytes > 0) {
                    nioBufferSize += readableBytes;
                    int count = entry.count;
                    if (count == -1) {
                        //noinspection ConstantValueVariableUse
                        entry.count = count =  buf.nioBufferCount();
                    }
                    int neededSpace = nioBufferCount + count;
                    if (neededSpace > nioBuffers.length) {
                        nioBuffers = expandNioBufferArray(nioBuffers, neededSpace, nioBufferCount);
                        NIO_BUFFERS.set(threadLocalMap, nioBuffers);

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