- uses: actions/checkout@v4
    - name: Set up JDK 21
      uses: actions/setup-java@v4
      with:
        java-version: '21'
        distribution: 'temurin'
    - uses: actions/cache@v4
      with:
        path: ~/.m2/repository
        key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
        restore-keys: |
          ${{ runner.os }}-maven-
    - name: Checkout fess-parent
      uses: actions/checkout@v4

## Key Patterns

### Actions (Controllers)
- Located in `app.web.*` or `app.web.admin.*`
- Methods with `@Execute` are web endpoints
- DI via `@Resource` annotation
- `HtmlResponse` for JSP, `JsonResponse` for APIs

### Services
- Business logic in `app.service.*`
- Injected into Actions
- Use behavior classes to access OpenSearch

### Helpers

# Fess: Enterprise Search Server
[![Java CI with Maven](https://github.com/codelibs/fess/actions/workflows/maven.yml/badge.svg)](https://github.com/codelibs/fess/actions/workflows/maven.yml)
[![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://github.com/gitbucket/gitbucket/blob/master/LICENSE)
![GitHub Release](https://img.shields.io/github/v/release/codelibs/fess)


## Overview

    private static final Logger logger = LogManager.getLogger(FessActionAdjustmentProvider.class);

    // _/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
    // you can adjust your actions by overriding
    // default methods defined at the interface
    // _/_/_/_/_/_/_/_/_/_/

    protected Map<String, List<Pair<String, String>>> responseHeaderMap = new HashMap<>();

import jakarta.annotation.Resource;
import jakarta.servlet.ServletContext;

/**
 * Base action class for admin pages in Fess.
 * <p>
 * This abstract class provides common functionality for all admin actions,
 * including authentication, authorization, and HTML data setup.
 * </p>
 *
 */
public abstract class FessAdminAction extends FessBaseAction {

    /** Constant suffix for view names. */

import org.lastaflute.web.validation.VaMessenger;

import jakarta.annotation.Resource;

/**
 * The base action class for Fess web application.
 * This abstract class provides common functionality for all Fess web actions,
 * including user authentication, validation, message handling, and access context management.
 * It extends LastaFlute's TypicalAction and implements validation and HTML path interfaces.
 *
 * @since 1.0
 */