Package io.netty.handler.codec.http2
Class Http2DataChunkedInput
java.lang.Object
io.netty.handler.codec.http2.Http2DataChunkedInput
- All Implemented Interfaces:
ChunkedInput<Http2DataFrame>
A
ChunkedInput
that fetches data chunk by chunk for use with HTTP/2 Data Frames.
Each chunk from the input data will be wrapped within a Http2DataFrame
. At the end of the input data,
Http2DataFrame.isEndStream()
will be set to true and will be written.
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception { if (msg instanceof Http2HeadersFrame) { Http2HeadersFrame http2HeadersFrame = (Http2HeadersFrame) msg; Http2HeadersFrame response = new DefaultHttp2HeadersFrame(new DefaultHttp2Headers().status("200")); response.stream(http2HeadersFrame.stream()); ctx.write(response); ChannelFuture sendFileFuture = ctx.writeAndFlush(new Http2DataChunkedInput( new ChunkedFile(new File(("/home/meow/cats.mp4"))), http2HeadersFrame.stream())); } }
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Field Summary
FieldsModifier and TypeFieldDescriptionprivate boolean
private final ChunkedInput
<ByteBuf> private final Http2FrameStream
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Constructor Summary
ConstructorsConstructorDescriptionHttp2DataChunkedInput
(ChunkedInput<ByteBuf> input, Http2FrameStream stream) Creates a new instance using the specified input. -
Method Summary
Modifier and TypeMethodDescriptionvoid
close()
Releases the resources associated with the input.boolean
Returntrue
if and only if there is no data left in the stream and the stream has reached at its end.long
length()
Returns the length of the input.long
progress()
Returns current transfer progress.readChunk
(ByteBufAllocator allocator) Fetches a chunked data from the stream.Deprecated.
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Field Details
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input
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stream
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endStreamSent
private boolean endStreamSent
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Constructor Details
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Http2DataChunkedInput
Creates a new instance using the specified input.- Parameters:
input
-ChunkedInput
containing data to writestream
-Http2FrameStream
holding stream info
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Method Details
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isEndOfInput
Description copied from interface:ChunkedInput
Returntrue
if and only if there is no data left in the stream and the stream has reached at its end.- Specified by:
isEndOfInput
in interfaceChunkedInput<Http2DataFrame>
- Throws:
Exception
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close
Description copied from interface:ChunkedInput
Releases the resources associated with the input.- Specified by:
close
in interfaceChunkedInput<Http2DataFrame>
- Throws:
Exception
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readChunk
Deprecated.- Specified by:
readChunk
in interfaceChunkedInput<Http2DataFrame>
- Parameters:
ctx
- The context which provides aByteBufAllocator
if buffer allocation is necessary.- Returns:
- the fetched chunk.
null
if there is no data left in the stream. Please note thatnull
does not necessarily mean that the stream has reached at its end. In a slow stream, the next chunk might be unavailable just momentarily. - Throws:
Exception
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readChunk
Description copied from interface:ChunkedInput
Fetches a chunked data from the stream. Once this method returns the last chunk and thus the stream has reached at its end, any subsequentChunkedInput.isEndOfInput()
call must returntrue
.- Specified by:
readChunk
in interfaceChunkedInput<Http2DataFrame>
- Parameters:
allocator
-ByteBufAllocator
if buffer allocation is necessary.- Returns:
- the fetched chunk.
null
if there is no data left in the stream. Please note thatnull
does not necessarily mean that the stream has reached at its end. In a slow stream, the next chunk might be unavailable just momentarily. - Throws:
Exception
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length
public long length()Description copied from interface:ChunkedInput
Returns the length of the input.- Specified by:
length
in interfaceChunkedInput<Http2DataFrame>
- Returns:
- the length of the input if the length of the input is known. a negative value if the length of the input is unknown.
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progress
public long progress()Description copied from interface:ChunkedInput
Returns current transfer progress.- Specified by:
progress
in interfaceChunkedInput<Http2DataFrame>
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