@Override
    public void bodyHandler(IAsyncHandler<IApimanBuffer> bodyHandler) {
        this.bodyHandler = bodyHandler;
    }
@see io.apiman.gateway.engine.io.IReadStream#bodyHandler(io.apiman.gateway.engine.async.IAsyncHandler)
gateway/platforms/servlet/src/main/java/io/apiman/gateway/platforms/servlet/connectors/HttpApiConnection.java