public void process()

in httpcore5/src/main/java/org/apache/hc/core5/http/protocol/RequestContent.java [96:138]
39 lines of code
12 McCabe index (conditional complexity)

    public void process(final HttpRequest request, final EntityDetails entity, final HttpContext context)
            throws HttpException, IOException {
        Args.notNull(request, "HTTP request");
        final String method = request.getMethod();
        if (Method.TRACE.isSame(method) && entity != null) {
            throw new ProtocolException("TRACE request may not enclose an entity");
        }
        if (this.overwrite) {
            request.removeHeaders(HttpHeaders.TRANSFER_ENCODING);
            request.removeHeaders(HttpHeaders.CONTENT_LENGTH);
        } else {
            if (request.containsHeader(HttpHeaders.TRANSFER_ENCODING)) {
                throw new ProtocolException("Transfer-encoding header already present");
            }
            if (request.containsHeader(HttpHeaders.CONTENT_LENGTH)) {
                throw new ProtocolException("Content-Length header already present");
            }
        }
        if (entity == null && isContentEnclosingMethod(method)) {
            request.addHeader(HttpHeaders.CONTENT_LENGTH, "0");
            return;
        }
        if (entity != null) {

            // Check for OPTIONS request with content but no Content-Type header
            validateOptionsContentType(request);

            final ProtocolVersion ver = context.getProtocolVersion();
            // Must specify a transfer encoding or a content length
            if (entity.isChunked() || entity.getContentLength() < 0) {
                if (ver.lessEquals(HttpVersion.HTTP_1_0)) {
                    throw new ProtocolException(
                            "Chunked transfer encoding not allowed for " + ver);
                }
                request.addHeader(HttpHeaders.TRANSFER_ENCODING, HeaderElements.CHUNKED_ENCODING);
                MessageSupport.addTrailerHeader(request, entity);
            } else {
                request.addHeader(HttpHeaders.CONTENT_LENGTH, Long.toString(entity.getContentLength()));
            }
            MessageSupport.addContentTypeHeader(request, entity);
            MessageSupport.addContentEncodingHeader(request, entity);
        }
    }