FLAGS[prefixFlag or frameFlag or FLAG_PADDED] =
          FLAGS[prefixFlag] + '|'.toString() + FLAGS[frameFlag] + "|PADDED"
      }
    }

    for (i in FLAGS.indices) { // Fill in holes with binary representation.
      if (FLAGS[i] == null) FLAGS[i] = BINARY[i]
    }
  }

  /**
   * Returns a human-readable representation of HTTP/2 frame headers.
   *
   * The format is:
   *

labels.facet=Facet
labels.geo=Geo
labels.groups=Groups
labels.hash=Hash
labels.maxSize=Max Size
labels.order=Order
labels.purgeSuggestSearchLogDay=Delete old suggest info
labels.q=Query
labels.roles=Roles
labels.suggestSearchLog=Suggest Search Log
labels.suggestWord=Suggest Word
labels.targetLabel=Label
labels.term=Term
labels.fields=Fields
labels.ex_q=Extended Query
labels.oldPassword=Current Password

        assertTrue(items.size() > 0);
        SuggestItem item = items.get(0);
        assertTrue("Should have multiple roles", item.getRoles().length >= 2);
    }

    @Test
    public void test_parseQueryLog_rolesFromBothQueryAndFilter() throws Exception {
        QueryLog queryLog = new QueryLog("content:test AND role:role1", "role:role2");

labels.geo=Geo
labels.groups=Grupos
labels.hash=Hash
labels.maxSize=Tamaño máximo
labels.order=Orden
labels.purgeSuggestSearchLogDay=Eliminar información de sugerencias anterior
labels.q=Consulta
labels.roles=Roles
labels.suggestSearchLog=Registro de búsqueda para sugerencias
labels.suggestWord=Palabra sugerida
labels.targetLabel=Etiqueta
labels.term=Término de búsqueda
labels.fields=Campos
labels.ex_q=Consulta extendida

   * that gets messy here, and we already have null tests for Range.
   */

  /*
   * These generators also rely on consecutive integer inputs (not necessarily in order, but no
   * holes).
   */

  // SetCreationTester has some tests that pass in duplicates. Dedup them.
  private static <E extends Comparable<? super E>> SortedSet<E> nullCheckedTreeSet(E[] elements) {
    SortedSet<E> set = newTreeSet();

labels.geo=Géo
labels.groups=Groupes
labels.hash=Hachage
labels.maxSize=Taille maximale
labels.order=Ordre
labels.purgeSuggestSearchLogDay=Supprimer les anciennes informations de suggestion
labels.q=Requête
labels.roles=Rôles
labels.suggestSearchLog=Journal de recherche de suggestions
labels.suggestWord=Suggérer un mot
labels.targetLabel=Étiquette
labels.term=Terme
labels.fields=Champs
labels.ex_q=Requête étendue

     * <ul>
     * <li>IDs must match, or an IllegalArgumentException is thrown</li>
     * <li>Text is taken from item1</li>
     * <li>Readings are merged, maintaining uniqueness</li>
     * <li>Fields, tags, languages, and roles are merged, maintaining uniqueness</li>
     * <li>Kinds are merged, maintaining uniqueness</li>
     * <li>Frequencies (queryFreq, docFreq) are summed</li>
     * <li>Timestamp and userBoost are taken from item2 (newer values)</li>

                case FessConfig.INDEX_ADMIN_REQUIRED_FIELDS:
                    return "url,title,role,boost";
                case FessConfig.INDEX_ADMIN_ARRAY_FIELDS:
                    return "alerts,roles";

                case FessConfig.INDEX_FIELD_CACHE:
                    return "cache";
                case FessConfig.INDEX_FIELD_DIGEST:
                    return "digest";

│   ├── config/                # Config index (crawl configs, schedules)
│   ├── log/                   # Log index (search logs, click logs)
│   └── user/                  # User index (users, groups, roles)
├── helper/                    # Cross-cutting utilities (~40+ helpers)
├── crawler/                   # Crawling engine (processor, transformer, service)

### SuggestItem (Domain Entity)
Location: `src/main/java/org/codelibs/fess/suggest/entity/SuggestItem.java`

Core attributes: `text`, `timestamp`, `queryFreq`, `docFreq`, `userBoost`, `readings`, `tags`, `roles`, `languages`, `kinds`

Kind types: `DOCUMENT`, `QUERY`, `USER`

---

## Development Workflow

### Build Commands

```bash
mvn compile                              # Compile