Examples of io.netty.handler.codec.http.HttpContent

io.netty.handler.codec.http.HttpContent
An HTTP chunk which is used for HTTP chunked transfer-encoding. {@link HttpObjectDecoder} generates {@link HttpContent} after{@link HttpMessage} when the content is large or the encoding of the contentis 'chunked. If you prefer not to receive {@link HttpContent} in your handler,place {@link HttpObjectAggregator} after {@link HttpObjectDecoder} in the{@link ChannelPipeline}.

  }


  @Override
  protected Object safeObject(Object msg, ByteBufAllocator allocator) throws Exception {
    if (msg instanceof HttpContent) {
      HttpContent content = (HttpContent) msg;
      ByteBuf buf = content.content();
      if (buf != Unpooled.EMPTY_BUFFER && buf.isDirect()) {
        ByteBuf newBuf = safeBuffer(content, allocator);
        if (msg instanceof LastHttpContent) {
          LastHttpContent last = (LastHttpContent) msg;
          return new AssembledLastHttpContent(newBuf, last.trailingHeaders(), last.getDecoderResult());

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      HttpServerResponseImpl resp = new HttpServerResponseImpl(vertx, this, request);
      HttpServerRequestImpl req = new HttpServerRequestImpl(this, request, resp);
      handleRequest(req, resp);
    }
    if (msg instanceof HttpContent) {
        HttpContent chunk = (HttpContent) msg;
      if (chunk.content().isReadable()) {
        Buffer buff = Buffer.buffer(chunk.content());
        handleChunk(buff);
      }


      //TODO chunk trailers
      if (msg instanceof LastHttpContent) {

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      if (!started) {
        startResponse();
      }


      final HttpContent chunk = new DefaultHttpContent(content);


      // FIXME Why is this closing the connection in netty 4.0.0.Beta3?
      context.write(chunk);


    }

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        ch.writeInbound(request);
        final HttpResponse response =  ch.readOutbound();
        assertThat(response.getStatus(), equalTo(HttpResponseStatus.OK));
        assertThat(response.headers().get(CONTENT_TYPE), equalTo(Transports.CONTENT_TYPE_HTML));


        final HttpContent headerChunk = ch.readOutbound();
        assertThat(headerChunk.content().readableBytes(), is(greaterThan(1024)));
        final String header = headerChunk.content().toString(UTF_8);
        assertThat(header, containsString("var c = parent.callback"));
        final HttpContent openChunk = ch.readOutbound();
        assertThat(openChunk.content().toString(UTF_8), equalTo("<script>\np(\"o\");\n</script>\r\n"));


        final FullHttpResponse validSend = xhrSendRequest(sessionUrl, "[\"x\"]", service);
        assertThat(validSend.getStatus(), is(HttpResponseStatus.NO_CONTENT));


        final DefaultHttpContent messageChunk = ch.readOutbound();

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        final HttpResponse response =  ch.readOutbound();
        assertThat(response.getStatus(), equalTo(HttpResponseStatus.OK));
        assertThat(response.getProtocolVersion(), is(HTTP_1_0));
        assertThat(response.headers().get(TRANSFER_ENCODING), is(nullValue()));
        assertThat(response.headers().get(CONTENT_LENGTH), is(nullValue()));
        final HttpContent httpContent = ch.readOutbound();
        assertThat(httpContent.content().readableBytes(), is(PreludeFrame.CONTENT_SIZE + 1));
        assertThat(getContent(httpContent.content()), equalTo(expectedContent(PreludeFrame.CONTENT_SIZE)));


        final HttpContent open = ch.readOutbound();
        assertThat(open.content().toString(UTF_8), equalTo("o\n"));


        final HttpContent goAway = ch.readOutbound();
        assertThat(goAway.content().toString(UTF_8), equalTo("c[3000,\"Go away!\"]\n"));


        final HttpContent lastChunk = ch.readOutbound();
        assertThat(lastChunk.content().toString(UTF_8), equalTo(""));
    }

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        assertThat(response.getStatus(), equalTo(HttpResponseStatus.OK));
        assertThat(response.getProtocolVersion(), is(HTTP_1_1));
        assertThat(response.headers().get(TRANSFER_ENCODING), equalTo("chunked"));
        assertThat(response.headers().get(CONTENT_LENGTH), is(nullValue()));


        final HttpContent httpContent = ch.readOutbound();
        assertThat(httpContent.content().readableBytes(), is(PreludeFrame.CONTENT_SIZE + 1));
        assertThat(getContent(httpContent.content()), equalTo(expectedContent(PreludeFrame.CONTENT_SIZE)));


        final HttpContent open = ch.readOutbound();
        assertThat(open.content().toString(UTF_8), equalTo("o\n"));


        final HttpContent goAway = ch.readOutbound();
        assertThat(goAway.content().toString(UTF_8), equalTo("c[3000,\"Go away!\"]\n"));
        final HttpContent lastChunk = ch.readOutbound();
        assertThat(lastChunk.content().toString(UTF_8), equalTo(""));
    }

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      if (!started) {
        startResponse();
      }


      final HttpContent chunk = new DefaultHttpContent(content);
      context.write(chunk);


    }

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        // check if the decoder was constructed before
        // if not it handles the form get
        if (decoder != null) {
            if (msg instanceof HttpContent) {
                // New chunk is received
                HttpContent chunk = (HttpContent) msg;
                try {
                    decoder.offer(chunk);
                } catch (ErrorDataDecoderException e1) {
                    e1.printStackTrace();
                    responseContent.append(e1.getMessage());

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                HttpResponse response = future.getPendingResponse();
                future.setPendingResponse(null);
                if (response != null && handleHttpResponse(response, channel, future, handler))
                    return;


                HttpContent chunk = (HttpContent) e;


                boolean interrupt = false;
                boolean last = chunk instanceof LastHttpContent;


                // Netty 4: the last chunk is not empty
                if (last) {
                    LastHttpContent lastChunk = (LastHttpContent) chunk;
                    HttpHeaders trailingHeaders = lastChunk.trailingHeaders();
                    if (!trailingHeaders.isEmpty()) {
                        NettyResponseHeaders responseHeaders = new NettyResponseHeaders(future.getHttpHeaders(), trailingHeaders);
                        interrupt = handler.onHeadersReceived(responseHeaders) != STATE.CONTINUE;
                    }
                }


                ByteBuf buf = chunk.content();
                try {
                    if (!interrupt && (buf.readableBytes() > 0 || last)) {
                        NettyResponseBodyPart part = nettyConfig.getBodyPartFactory().newResponseBodyPart(buf, last);
                        interrupt = updateBodyAndInterrupt(future, handler, part);
                    }

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        HttpResponse response = (HttpResponse) msg;
        conn.handleResponse(response);
        valid = true;
      }
      if (msg instanceof HttpContent) {
        HttpContent chunk = (HttpContent) msg;
        if (chunk.content().isReadable()) {
          Buffer buff = new Buffer(chunk.content().slice());
          conn.handleResponseChunk(buff);
        }
        if (chunk instanceof LastHttpContent) {
          conn.handleResponseEnd((LastHttpContent)chunk);
        }

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