@Override public void process(final HttpRequest request, final HttpContext context) throws HttpException, IOException { Args.notNull(request, "HTTP request"); final String method = request.getRequestLine().getMethod(); if (method.equalsIgnoreCase("CONNECT")) { request.setHeader(PROXY_CONN_DIRECTIVE, HTTP.CONN_KEEP_ALIVE); return; } final HttpClientContext clientContext = HttpClientContext.adapt(context); // Obtain the client connection (required) final RouteInfo route = clientContext.getHttpRoute(); if (route == null) { this.log.debug("Connection route not set in the context"); return; } if (route.getHopCount() == 1 || route.isTunnelled()) { if (!request.containsHeader(HTTP.CONN_DIRECTIVE)) { request.addHeader(HTTP.CONN_DIRECTIVE, HTTP.CONN_KEEP_ALIVE); } } if (route.getHopCount() == 2 && !route.isTunnelled()) { if (!request.containsHeader(PROXY_CONN_DIRECTIVE)) { request.addHeader(PROXY_CONN_DIRECTIVE, HTTP.CONN_KEEP_ALIVE); } } }
@Override public void process(final HttpRequest request, final HttpContext context) throws HttpException, IOException { Args.notNull(request, "HTTP request"); if (!request.containsHeader(HTTP.EXPECT_DIRECTIVE)) { if (request instanceof HttpEntityEnclosingRequest) { final ProtocolVersion ver = request.getRequestLine().getProtocolVersion(); final HttpEntity entity = ((HttpEntityEnclosingRequest) request).getEntity(); // Do not send the expect header if request body is known to be empty if (entity != null && entity.getContentLength() != 0 && !ver.lessEquals(HttpVersion.HTTP_1_0)) { final HttpClientContext clientContext = HttpClientContext.adapt(context); final RequestConfig config = clientContext.getRequestConfig(); if (config.isExpectContinueEnabled()) { request.addHeader(HTTP.EXPECT_DIRECTIVE, HTTP.EXPECT_CONTINUE); } } } } }