Examples with DescribingHandler ratpack.handling.internal.DescribingHandler used on opensource projects

Example 1 with DescribingHandler

use of ratpack.handling.internal.DescribingHandler in project ratpack by ratpack.

the class NettyHandlerAdapter method newRequest.

private void newRequest(ChannelHandlerContext ctx, HttpRequest nettyRequest) throws Exception {
    if (!nettyRequest.decoderResult().isSuccess()) {
        sendError(ctx, HttpResponseStatus.BAD_REQUEST);
        return;
    }
    Headers requestHeaders = new NettyHeadersBackedHeaders(nettyRequest.headers());
    // Find the content length we will use this as an indicator of a body
    Long contentLength = HttpUtil.getContentLength(nettyRequest, -1L);
    String transferEncoding = requestHeaders.get(HttpHeaderNames.TRANSFER_ENCODING);
    // If there is a content length or transfer encoding that indicates there is a body
    boolean hasBody = (contentLength > 0) || (transferEncoding != null);
    RequestBody requestBody = hasBody ? new RequestBody(contentLength, nettyRequest, ctx) : null;
    Channel channel = ctx.channel();
    if (requestBody != null) {
        channel.attr(BODY_ACCUMULATOR_KEY).set(requestBody);
    }
    InetSocketAddress remoteAddress = (InetSocketAddress) channel.remoteAddress();
    InetSocketAddress socketAddress = (InetSocketAddress) channel.localAddress();
    ConnectionIdleTimeout connectionIdleTimeout = ConnectionIdleTimeout.of(channel);
    DefaultRequest request = new DefaultRequest(Instant.now(), requestHeaders, nettyRequest.method(), nettyRequest.protocolVersion(), nettyRequest.uri(), remoteAddress, socketAddress, serverRegistry.get(ServerConfig.class), requestBody, connectionIdleTimeout, channel.attr(CLIENT_CERT_KEY).get());
    HttpHeaders nettyHeaders = new DefaultHttpHeaders(false);
    MutableHeaders responseHeaders = new NettyHeadersBackedMutableHeaders(nettyHeaders);
    AtomicBoolean transmitted = new AtomicBoolean(false);
    DefaultResponseTransmitter responseTransmitter = new DefaultResponseTransmitter(transmitted, channel, nettyRequest, request, nettyHeaders, requestBody);
    ctx.channel().attr(DefaultResponseTransmitter.ATTRIBUTE_KEY).set(responseTransmitter);
    Action<Action<Object>> subscribeHandler = thing -> {
        transmitted.set(true);
        ctx.channel().attr(CHANNEL_SUBSCRIBER_ATTRIBUTE_KEY).set(thing);
    };
    DefaultContext.RequestConstants requestConstants = new DefaultContext.RequestConstants(applicationConstants, request, channel, responseTransmitter, subscribeHandler);
    Response response = new DefaultResponse(responseHeaders, ctx.alloc(), responseTransmitter);
    requestConstants.response = response;
    DefaultContext.start(channel.eventLoop(), requestConstants, serverRegistry, handlers, execution -> {
        if (!transmitted.get()) {
            Handler lastHandler = requestConstants.handler;
            StringBuilder description = new StringBuilder();
            description.append("No response sent for ").append(request.getMethod().getName()).append(" request to ").append(request.getUri());
            if (lastHandler != null) {
                description.append(" (last handler: ");
                if (lastHandler instanceof DescribingHandler) {
                    ((DescribingHandler) lastHandler).describeTo(description);
                } else {
                    DescribingHandlers.describeTo(lastHandler, description);
                }
                description.append(")");
            }
            String message = description.toString();
            LOGGER.warn(message);
            response.getHeaders().clear();
            ByteBuf body;
            if (development) {
                CharBuffer charBuffer = CharBuffer.wrap(message);
                body = ByteBufUtil.encodeString(ctx.alloc(), charBuffer, CharsetUtil.UTF_8);
                response.contentType(HttpHeaderConstants.PLAIN_TEXT_UTF8);
            } else {
                body = Unpooled.EMPTY_BUFFER;
            }
            response.getHeaders().set(HttpHeaderConstants.CONTENT_LENGTH, body.readableBytes());
            responseTransmitter.transmit(HttpResponseStatus.INTERNAL_SERVER_ERROR, body);
        }
    });
}