Examples of io.undertow.server.HttpServerExchange$WrapperStreamSinkConduitFactory

io.undertow.server.HttpServerExchange
Channel implementation that is actually provided to clients of the exchange. We do not provide the underlying conduit channel, as this will become the next requests conduit channel, so if a thread is still hanging onto this exchange it can result in problems.
It also delays a readResume call until the current call stack has returned, thus ensuring that only 1 thread is active in the exchange at any one time.
It also handles buffered request data.

    public HttpServerExchange sendOutOfBandResponse(HttpServerExchange exchange) {
        if (exchange == null || !HttpContinue.requiresContinueResponse(exchange)) {
            throw UndertowMessages.MESSAGES.outOfBandResponseOnlyAllowedFor100Continue();
        }
        final ConduitState state = resetChannel();
        HttpServerExchange newExchange = new HttpServerExchange(this);
        for (HttpString header : exchange.getRequestHeaders().getHeaderNames()) {
            newExchange.getRequestHeaders().putAll(header, exchange.getRequestHeaders().get(header));
        }
        newExchange.setProtocol(exchange.getProtocol());
        newExchange.setRequestMethod(exchange.getRequestMethod());
        newExchange.setRequestPath(exchange.getRequestPath());
        newExchange.getRequestHeaders().put(Headers.CONNECTION, Headers.KEEP_ALIVE.toString());
        newExchange.getRequestHeaders().put(Headers.CONTENT_LENGTH, 0);


        newExchange.addExchangeCompleteListener(new ExchangeCompletionListener() {
            @Override
            public void exchangeEvent(HttpServerExchange exchange, NextListener nextListener) {
                restoreChannel(state);
            }
        });

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            throw UndertowServletMessages.MESSAGES.asyncRequestAlreadyDispatched();
        }


        HttpServletRequestImpl requestImpl = servletRequestContext.getOriginalRequest();
        HttpServletResponseImpl responseImpl = servletRequestContext.getOriginalResponse();
        final HttpServerExchange exchange = requestImpl.getExchange();


        exchange.getAttachment(ServletRequestContext.ATTACHMENT_KEY).setDispatcherType(DispatcherType.ASYNC);


        requestImpl.setAttribute(ASYNC_REQUEST_URI, requestImpl.getOriginalRequestURI());
        requestImpl.setAttribute(ASYNC_CONTEXT_PATH, requestImpl.getOriginalContextPath());
        requestImpl.setAttribute(ASYNC_SERVLET_PATH, requestImpl.getOriginalServletPath());
        requestImpl.setAttribute(ASYNC_QUERY_STRING, requestImpl.getOriginalQueryString());

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        } catch (IllegalStateException e) {


        }
        final boolean include = req.getDispatcherType() == DispatcherType.INCLUDE;
        if (!req.getMethod().equals(Methods.HEAD_STRING)) {
            HttpServerExchange exchange = SecurityActions.requireCurrentServletRequestContext().getOriginalRequest().getExchange();
            resource.serve(exchange.getResponseSender(), exchange, new IoCallback() {


                @Override
                public void onComplete(final HttpServerExchange exchange, final Sender sender) {
                    if (!include) {
                        sender.close();

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            this.exchange = exchange;
        }


        @Override
        public void completed(final ClientExchange result) {
            HttpServerExchange exchange = result.getAttachment(EXCHANGE);
            final ClientResponse response = result.getResponse();
            final HeaderMap inboundResponseHeaders = response.getResponseHeaders();
            final HeaderMap outboundResponseHeaders = exchange.getResponseHeaders();
            exchange.setResponseCode(response.getResponseCode());
            copyHeaders(outboundResponseHeaders, inboundResponseHeaders);


            if (exchange.isUpgrade()) {
                exchange.upgradeChannel(new HttpUpgradeListener() {
                    @Override
                    public void handleUpgrade(StreamConnection streamConnection, HttpServerExchange exchange) {
                        StreamConnection clientChannel = null;
                        try {
                            clientChannel = result.getConnection().performUpgrade();


                            ChannelListeners.initiateTransfer(Long.MAX_VALUE, clientChannel.getSourceChannel(), streamConnection.getSinkChannel(), ChannelListeners.closingChannelListener(), ChannelListeners.<StreamSinkChannel>writeShutdownChannelListener(ChannelListeners.<StreamSinkChannel>flushingChannelListener(ChannelListeners.closingChannelListener(), ChannelListeners.closingChannelExceptionHandler()), ChannelListeners.closingChannelExceptionHandler()), ChannelListeners.closingChannelExceptionHandler(), ChannelListeners.closingChannelExceptionHandler(), result.getConnection().getBufferPool());
                            ChannelListeners.initiateTransfer(Long.MAX_VALUE, streamConnection.getSourceChannel(), clientChannel.getSinkChannel(), ChannelListeners.closingChannelListener(), ChannelListeners.<StreamSinkChannel>writeShutdownChannelListener(ChannelListeners.<StreamSinkChannel>flushingChannelListener(ChannelListeners.closingChannelListener(), ChannelListeners.closingChannelExceptionHandler()), ChannelListeners.closingChannelExceptionHandler()), ChannelListeners.closingChannelExceptionHandler(), ChannelListeners.closingChannelExceptionHandler(), result.getConnection().getBufferPool());


                        } catch (IOException e) {
                            IoUtils.safeClose(streamConnection, clientChannel);
                        }
                    }
                });
            }
            IoExceptionHandler handler = new IoExceptionHandler(exchange, result.getConnection());
            ChannelListeners.initiateTransfer(Long.MAX_VALUE, result.getResponseChannel(), exchange.getResponseChannel(), ChannelListeners.closingChannelListener(), new HTTPTrailerChannelListener(result, exchange), handler, handler, exchange.getConnection().getBufferPool());


        }

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            throw UndertowServletMessages.MESSAGES.asyncRequestAlreadyDispatched();
        }


        HttpServletRequestImpl requestImpl = servletRequestContext.getOriginalRequest();
        HttpServletResponseImpl responseImpl = servletRequestContext.getOriginalResponse();
        final HttpServerExchange exchange = requestImpl.getExchange();


        exchange.getAttachment(ServletRequestContext.ATTACHMENT_KEY).setDispatcherType(DispatcherType.ASYNC);


        requestImpl.setAttribute(ASYNC_REQUEST_URI, requestImpl.getOriginalRequestURI());
        requestImpl.setAttribute(ASYNC_CONTEXT_PATH, requestImpl.getOriginalContextPath());
        requestImpl.setAttribute(ASYNC_SERVLET_PATH, requestImpl.getOriginalServletPath());
        requestImpl.setAttribute(ASYNC_QUERY_STRING, requestImpl.getOriginalQueryString());

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        } catch (IllegalStateException e) {


        }
        final boolean include = req.getDispatcherType() == DispatcherType.INCLUDE;
        if (!req.getMethod().equals(Methods.HEAD_STRING)) {
            HttpServerExchange exchange = SecurityActions.requireCurrentServletRequestContext().getOriginalRequest().getExchange();
            resource.serve(exchange.getResponseSender(), exchange, new IoCallback() {


                @Override
                public void onComplete(final HttpServerExchange exchange, final Sender sender) {
                    if (!include) {
                        sender.close();

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            } else if (frame instanceof SpdySynStreamStreamSourceChannel) {
                //we have a request
                final SpdySynStreamStreamSourceChannel dataChannel = (SpdySynStreamStreamSourceChannel) frame;
                final SpdyServerConnection connection = new SpdyServerConnection(channel, dataChannel, undertowOptions, bufferSize);


                final HttpServerExchange exchange = new HttpServerExchange(connection, dataChannel.getHeaders(), dataChannel.getResponseChannel().getHeaders(), maxEntitySize);
                exchange.setRequestScheme(exchange.getRequestHeaders().getFirst(SCHEME));
                exchange.setProtocol(new HttpString(exchange.getRequestHeaders().getFirst(VERSION)));
                exchange.setRequestMethod(new HttpString(exchange.getRequestHeaders().getFirst(METHOD)));
                exchange.getRequestHeaders().add(Headers.HOST, exchange.getRequestHeaders().getFirst(HOST));
                final String path = exchange.getRequestHeaders().getFirst(PATH);
                setRequestPath(exchange, path, encoding, allowEncodingSlash, decodeBuffer);


                SSLSession session = channel.getSslSession();
                if(session != null) {
                    connection.setSslSessionInfo(new SpdySslSessionInfo(channel));

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    }


    public void startRequest() {
        connection.resetChannel();
        state = new AjpRequestParseState();
        httpServerExchange = new HttpServerExchange(connection, maxEntitySize);
        read = 0;
    }

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            // we remove ourselves as the read listener from the channel;
            // if the http handler doesn't set any then reads will suspend, which is the right thing to do
            channel.getReadSetter().set(null);
            channel.suspendReads();


            final HttpServerExchange httpServerExchange = this.httpServerExchange;
            final AjpServerResponseConduit responseConduit = new AjpServerResponseConduit(connection.getChannel().getSinkChannel().getConduit(), connection.getBufferPool(), httpServerExchange, new ConduitListener<AjpServerResponseConduit>() {
                @Override
                public void handleEvent(AjpServerResponseConduit channel) {
                    Connectors.terminateResponse(httpServerExchange);
                }
            }, httpServerExchange.getRequestMethod().equals(Methods.HEAD));
            connection.getChannel().getSinkChannel().setConduit(responseConduit);
            connection.getChannel().getSourceChannel().setConduit(createSourceConduit(connection.getChannel().getSourceChannel().getConduit(), responseConduit, httpServerExchange));
            //we need to set the write ready handler. This allows the response conduit to wrap it
            responseConduit.setWriteReadyHandler(writeReadyHandler);


            try {
                connection.setSSLSessionInfo(state.createSslSessionInfo());
                httpServerExchange.setSourceAddress(state.createPeerAddress());
                httpServerExchange.setDestinationAddress(state.createDestinationAddress());
                if(scheme != null) {
                    httpServerExchange.setRequestScheme(scheme);
                }
                state = null;
                this.httpServerExchange = null;
                httpServerExchange.setPersistent(true);


                if(recordRequestStartTime) {
                    Connectors.setRequestStartTime(httpServerExchange);
                }
                connection.setCurrentExchange(httpServerExchange);

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            this.exchange = exchange;
        }


        @Override
        public void completed(final ClientExchange result) {
            HttpServerExchange exchange = result.getAttachment(EXCHANGE);
            final ClientResponse response = result.getResponse();
            final HeaderMap inboundResponseHeaders = response.getResponseHeaders();
            final HeaderMap outboundResponseHeaders = exchange.getResponseHeaders();
            exchange.setResponseCode(response.getResponseCode());
            copyHeaders(outboundResponseHeaders, inboundResponseHeaders);


            if (exchange.isUpgrade()) {
                exchange.upgradeChannel(new HttpUpgradeListener() {
                    @Override
                    public void handleUpgrade(StreamConnection streamConnection, HttpServerExchange exchange) {
                        StreamConnection clientChannel = null;
                        try {
                            clientChannel = result.getConnection().performUpgrade();


                            ChannelListeners.initiateTransfer(Long.MAX_VALUE, clientChannel.getSourceChannel(), streamConnection.getSinkChannel(), ChannelListeners.closingChannelListener(), ChannelListeners.<StreamSinkChannel>writeShutdownChannelListener(ChannelListeners.<StreamSinkChannel>flushingChannelListener(ChannelListeners.closingChannelListener(), ChannelListeners.closingChannelExceptionHandler()), ChannelListeners.closingChannelExceptionHandler()), ChannelListeners.closingChannelExceptionHandler(), ChannelListeners.closingChannelExceptionHandler(), result.getConnection().getBufferPool());
                            ChannelListeners.initiateTransfer(Long.MAX_VALUE, streamConnection.getSourceChannel(), clientChannel.getSinkChannel(), ChannelListeners.closingChannelListener(), ChannelListeners.<StreamSinkChannel>writeShutdownChannelListener(ChannelListeners.<StreamSinkChannel>flushingChannelListener(ChannelListeners.closingChannelListener(), ChannelListeners.closingChannelExceptionHandler()), ChannelListeners.closingChannelExceptionHandler()), ChannelListeners.closingChannelExceptionHandler(), ChannelListeners.closingChannelExceptionHandler(), result.getConnection().getBufferPool());


                        } catch (IOException e) {
                            IoUtils.safeClose(streamConnection, clientChannel);
                        }
                    }
                });
            }
            IoExceptionHandler handler = new IoExceptionHandler(exchange, result.getConnection());
            ChannelListeners.initiateTransfer(Long.MAX_VALUE, result.getResponseChannel(), exchange.getResponseChannel(), ChannelListeners.closingChannelListener(), new HTTPTrailerChannelListener(result, exchange), handler, handler, exchange.getConnection().getBufferPool());


        }

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io.undertow.ajp.AjpReadListener

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io.undertow.io.BlockingSenderImpl

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