io.netty.handler.codec.http

Class HttpChunkedInput

java.lang.Object

io.netty.handler.codec.http.HttpChunkedInput

All Implemented Interfaces:

io.netty.handler.stream.ChunkedInput<HttpContent>

public class HttpChunkedInput
extends Object
implements io.netty.handler.stream.ChunkedInput<HttpContent>

A ChunkedInput that fetches data chunk by chunk for use with HTTP chunked transfers.

Each chunk from the input data will be wrapped within a HttpContent. At the end of the input data, LastHttpContent will be written.

Ensure that your HTTP response header contains Transfer-Encoding: chunked.

 public void messageReceived(ChannelHandlerContext ctx, FullHttpRequest request) throws Exception {
     HttpResponse response = new DefaultHttpResponse(HTTP_1_1, OK);
     response.headers().set(TRANSFER_ENCODING, CHUNKED);
     ctx.write(response);

     HttpChunkedInput httpChunkWriter = new HttpChunkedInput(
         new ChunkedFile("/tmp/myfile.txt"));
     ChannelFuture sendFileFuture = ctx.write(httpChunkWriter);
 }
 

Constructor Summary

Constructors

Constructor and Description
HttpChunkedInput(io.netty.handler.stream.ChunkedInput<io.netty.buffer.ByteBuf> input) Creates a new instance using the specified input.
HttpChunkedInput(io.netty.handler.stream.ChunkedInput<io.netty.buffer.ByteBuf> input, LastHttpContent lastHttpContent) Creates a new instance using the specified input.

Method Summary

Modifier and Type	Method and Description
void	close()
boolean	isEndOfInput()
long	length()
long	progress()
HttpContent	readChunk(io.netty.buffer.ByteBufAllocator allocator)
HttpContent	readChunk(io.netty.channel.ChannelHandlerContext ctx) Deprecated.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

HttpChunkedInput

public HttpChunkedInput(io.netty.handler.stream.ChunkedInput<io.netty.buffer.ByteBuf> input)

Creates a new instance using the specified input.

Parameters:

input - ChunkedInput containing data to write

HttpChunkedInput

public HttpChunkedInput(io.netty.handler.stream.ChunkedInput<io.netty.buffer.ByteBuf> input,
                        LastHttpContent lastHttpContent)

Creates a new instance using the specified input. lastHttpContent will be written as the terminating chunk.

Parameters:

input - ChunkedInput containing data to write

lastHttpContent - LastHttpContent that will be written as the terminating chunk. Use this for training headers.

Method Detail

isEndOfInput

public boolean isEndOfInput()
                     throws Exception

Specified by:

isEndOfInput in interface io.netty.handler.stream.ChunkedInput<HttpContent>

Throws:

Exception

close

public void close()
           throws Exception

Specified by:

close in interface io.netty.handler.stream.ChunkedInput<HttpContent>

Throws:

Exception

readChunk

@Deprecated
public HttpContent readChunk(io.netty.channel.ChannelHandlerContext ctx)
                                  throws Exception

Deprecated.

Specified by:

readChunk in interface io.netty.handler.stream.ChunkedInput<HttpContent>

Throws:

Exception

readChunk

public HttpContent readChunk(io.netty.buffer.ByteBufAllocator allocator)
                      throws Exception

Specified by:

readChunk in interface io.netty.handler.stream.ChunkedInput<HttpContent>

Throws:

Exception

length

public long length()

Specified by:

length in interface io.netty.handler.stream.ChunkedInput<HttpContent>

progress

public long progress()

Specified by:

progress in interface io.netty.handler.stream.ChunkedInput<HttpContent>