# Persistent Handles Feature - Detailed Design Document

## 1. Overview

Persistent handles (also known as durable handles) allow SMB3 connections to survive network disconnections, server reboots, and client reconnections. This feature is critical for enterprise reliability and seamless failover scenarios.

## 2. Protocol Specification Reference

- **MS-SMB2 Section 2.2.13.2.3**: SMB2_CREATE_DURABLE_HANDLE_REQUEST

project.

  - If you are an individual writing original source code and you're sure you
    own the intellectual property, then you'll need to sign an [individual
    CLA][]. Please include your GitHub username.
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    then you'll need to sign a [corporate CLA][].

You generally only need to submit a CLA once, so if you've already submitted

# Multi-Channel Feature - Detailed Design Document

## 1. Overview

SMB3 Multi-Channel enables the use of multiple network connections between client and server, providing increased throughput, network fault tolerance, and automatic failover capabilities. This feature aggregates bandwidth across multiple NICs and provides seamless failover when network paths fail.

## 2. Protocol Specification Reference

Marcelo Trylesinski <******@****.***> 1760204929 +0100

- **`org.codelibs.curl.io.ContentCache`**: Handles automatic in-memory or on-disk caching of request/response bodies
- **`org.codelibs.curl.io.ContentOutputStream`**: Streaming utilities for efficient content handling

### Key Design Patterns

1. **Fluent Builder Pattern**: `CurlRequest` uses method chaining for configuration
2. **Factory Pattern**: `Curl` class provides static factory methods for each HTTP method

Marcelo Trylesinski <******@****.***> 1760204929 +0100

# RDMA (SMB Direct) Feature - Detailed Design Document

## 1. Overview

SMB Direct enables high-performance data transfer using Remote Direct Memory Access (RDMA) technology. This provides ultra-low latency and high bandwidth data transfer by bypassing the traditional TCP/IP stack and allowing direct memory-to-memory transfers between client and server.

## 2. Protocol Specification Reference

- **MS-SMBD**: SMB2 Remote Direct Memory Access (RDMA) Transport Protocol

Marcelo Trylesinski <******@****.***> 1760204929 +0100

 */
package org.codelibs.fess.app.web.admin.design;

import org.lastaflute.web.ruts.multipart.MultipartFormFile;
import org.lastaflute.web.validation.Required;

import jakarta.validation.constraints.Pattern;

/**
 * Form for uploading design files to customize the appearance of the Fess search interface.
 * This form is used in the admin interface to upload CSS, JSP, and other design-related files

Marcelo Trylesinski <******@****.***> 1760204929 +0100