private void readDataFrame(
ChannelHandlerContext ctx, ByteBuf payload, Http2FrameObserver observer)
throws Http2Exception {
int dataPadding = flags.readPaddingLength(payload);
// Determine how much data there is to read by removing the trailing
// padding.
int dataLength = payload.readableBytes() - dataPadding;
if (dataLength < 0) {
throw protocolError("Frame payload too small for padding.");
}
ByteBuf data = payload.readSlice(dataLength);
observer.onDataRead(
ctx,
streamId,
data,
dataPadding,
flags.endOfStream(),
flags.endOfSegment(),
flags.compressed());
payload.skipBytes(payload.readableBytes());
}
