Examples with AsyncResponseProducer org.apache.hc.core5.http.nio.AsyncResponseProducer used on opensource projects

Example 16 with AsyncResponseProducer

use of org.apache.hc.core5.http.nio.AsyncResponseProducer in project httpcomponents-core by apache.

the class ServerHttp1StreamHandler method consumeHeader.

void consumeHeader(final HttpRequest request, final EntityDetails requestEntityDetails) throws HttpException, IOException {
    if (done.get() || requestState != MessageState.HEADERS) {
        throw new ProtocolException("Unexpected message head");
    }
    receivedRequest = request;
    requestState = requestEntityDetails == null ? MessageState.COMPLETE : MessageState.BODY;
    AsyncServerExchangeHandler handler;
    try {
        handler = exchangeHandlerFactory.create(request, context);
    } catch (final MisdirectedRequestException ex) {
        handler = new ImmediateResponseExchangeHandler(HttpStatus.SC_MISDIRECTED_REQUEST, ex.getMessage());
    } catch (final HttpException ex) {
        handler = new ImmediateResponseExchangeHandler(HttpStatus.SC_INTERNAL_SERVER_ERROR, ex.getMessage());
    }
    if (handler == null) {
        handler = new ImmediateResponseExchangeHandler(HttpStatus.SC_NOT_FOUND, "Cannot handle request");
    }
    exchangeHandler = handler;
    final ProtocolVersion transportVersion = request.getVersion();
    if (transportVersion != null && transportVersion.greaterEquals(HttpVersion.HTTP_2)) {
        throw new UnsupportedHttpVersionException(transportVersion);
    }
    context.setProtocolVersion(transportVersion != null ? transportVersion : HttpVersion.HTTP_1_1);
    context.setAttribute(HttpCoreContext.HTTP_REQUEST, request);
    try {
        httpProcessor.process(request, requestEntityDetails, context);
        exchangeHandler.handleRequest(request, requestEntityDetails, responseChannel, context);
    } catch (final HttpException ex) {
        if (!responseCommitted.get()) {
            final HttpResponse response = new BasicHttpResponse(ServerSupport.toStatusCode(ex));
            response.addHeader(HttpHeaders.CONNECTION, HeaderElements.CLOSE);
            final AsyncResponseProducer responseProducer = new BasicResponseProducer(response, ServerSupport.toErrorMessage(ex));
            exchangeHandler = new ImmediateResponseExchangeHandler(responseProducer);
            exchangeHandler.handleRequest(request, requestEntityDetails, responseChannel, context);
        } else {
            throw ex;
        }
    }
}