@Override
  public void messageReceived(ChannelHandlerContext ctx, MessageEvent event) throws Exception {
    if (event.getMessage() instanceof MappingHttpRequest) {
      MappingHttpRequest httpRequest = (MappingHttpRequest) event.getMessage();

      if (httpRequest.getMessage() instanceof ObjectStorageDataRequestType) {
        if (httpRequest.isChunked()) {
          // Chunked request, and beginning, setup map etc.
          initializeNewPut(ctx, (ObjectStorageDataRequestType) httpRequest.getMessage());
        }
      }
    } else if (event.getMessage() instanceof HttpChunk) {
      // Add the chunk to the current streams channel buffer.
      HttpChunk chunk = (HttpChunk) event.getMessage();
      appendChunk(chunk.getContent(), ctx.getChannel());

      if (chunk.isLast()) {
        // Remove from the map
        Logs.extreme()
            .debug(
                "Removing data map due to last chunk processed event for channel: "
                    + ctx.getChannel().getId());
        dataMap.remove(ctx.getChannel());
      }
    }
    // Always pass it on
    ctx.sendUpstream(event);
  }