Source:
private void processPart(InterfaceHttpData part) throws RestServiceException { if (part.getHttpDataType() == InterfaceHttpData.HttpDataType.FileUpload) { FileUpload fileUpload = (FileUpload) part; if (fileUpload.getName().equals(RestUtils.MultipartPost.Blob_Part)) { if (hasBlob) { nettyMetrics.repeatedPartsError.inc(); throw new RestServiceException("Request has more than one " + RestUtils.MultipartPost.Blob_Part, RestServiceErrorCode.BadRequest); } else { hasBlob = true; if (getSize() > 0 && fileUpload.length() != getSize()) { nettyMetrics.multipartRequestSizeMismatchError.inc(); throw new RestServiceException( "Request size [" + fileUpload.length() + "] does not match Content-Length [" + getSize() + "]", RestServiceErrorCode.BadRequest); } else { contentLock.lock(); try { if (isOpen()) { ReferenceCountUtil.retain(fileUpload.content()); requestContents.add(new DefaultHttpContent(fileUpload.content())); } else { nettyMetrics.multipartRequestAlreadyClosedError.inc(); throw new RestServiceException("Request is closed", RestServiceErrorCode.RequestChannelClosed); } } finally { contentLock.unlock(); } } } } else { String name = fileUpload.getName(); if (allArgs.containsKey(name)) { nettyMetrics.repeatedPartsError.inc(); throw new RestServiceException("Request already has a component named " + name, RestServiceErrorCode.BadRequest); } else { ByteBuffer buffer = ByteBuffer.allocate(fileUpload.content().readableBytes()); fileUpload.content().readBytes(buffer); buffer.flip(); ReadableStreamChannel channel = new ByteBufferReadableStreamChannel(buffer); allArgs.put(name, channel); } } } else { nettyMetrics.unsupportedPartError.inc(); throw new RestServiceException("Unexpected HTTP data", RestServiceErrorCode.BadRequest); } }

Target:
private void processPart(InterfaceHttpData part) throws RestServiceException { if (part.getHttpDataType() == InterfaceHttpData.HttpDataType.FileUpload) { FileUpload fileUpload = (FileUpload) part; if (fileUpload.getName().equals(RestUtils.MultipartPost.Blob_Part)) { if (hasBlob) { nettyMetrics.repeatedPartsError.inc(); throw new RestServiceException("Request has more than one " + RestUtils.MultipartPost.Blob_Part, RestServiceErrorCode.BadRequest); } else { hasBlob = true; if (fileUpload.length() != getSize()) { nettyMetrics.multipartRequestSizeMismatchError.inc(); throw new RestServiceException( "Request size [" + fileUpload.length() + "] does not match Content-Length [" + getSize() + "]", RestServiceErrorCode.BadRequest); } else { contentLock.lock(); try { if (isOpen()) { requestContents.add(new DefaultHttpContent(ReferenceCountUtil.retain(fileUpload.content()))); } else { nettyMetrics.multipartRequestAlreadyClosedError.inc(); throw new RestServiceException("Request is closed", RestServiceErrorCode.RequestChannelClosed); } } finally { contentLock.unlock(); } } } } else { String name = fileUpload.getName(); if (allArgs.containsKey(name)) { nettyMetrics.repeatedPartsError.inc(); throw new RestServiceException("Request already has a component named " + name, RestServiceErrorCode.BadRequest); } else { ByteBuffer buffer = ByteBuffer.allocate(fileUpload.content().readableBytes()); fileUpload.content().readBytes(buffer); buffer.flip(); ReadableStreamChannel channel = new ByteBufferReadableStreamChannel(buffer); allArgs.put(name, channel); } } } else { nettyMetrics.unsupportedPartError.inc(); throw new RestServiceException("Unexpected HTTP data", RestServiceErrorCode.BadRequest); } }