} catch (final Exception e) {
                logger.warn("Failed to update scores: booster={}", b.getClass().getSimpleName(), e);
                resultBuf.append(e.getMessage()).append('\n');
            }
        });
        return resultBuf.toString();
    }

    /**
     * Adds a score booster.
     * @param scoreBooster The score booster.
     */
    protected void addScoreBooster(final ScoreBooster scoreBooster) {

        // Create channels with zero scores (failed state)
        channel1.setState(ChannelState.FAILED);
        channel2.setState(ChannelState.FAILED);

        when(mockChannelManager.getHealthyChannels()).thenReturn(Arrays.asList(channel1, channel2));

        // Should still select a channel even with zero scores
        ChannelInfo selected = loadBalancer.selectChannel(mockMessage);

     */
    ROUND_ROBIN,

    /**
     * Select the least busy channel based on pending operations
     */
    LEAST_LOADED,

    /**
     * Weighted random selection based on channel scores
     */
    WEIGHTED_RANDOM,

    /**
     * Affinity-based selection for related operations
     */
    AFFINITY_BASED,

    /**
     * Adaptive selection based on operation type and performance

                logger.warn("Failed to update scores: {}", response.buildFailureMessage());
            }
            bulkRequestBuilder = null;
        }
    }

    /**
     * Gets the priority of this score booster.
     * @return The priority.
     */
    public int getPriority() {
        return priority;
    }

    /**
     * Sets the priority of this score booster.
     * @param priority The priority.

            final List<Map<String, Object>> results = processor.search("*", new TestSearchRequestParams(0, 10, 0), OptionalThing.empty());
            assertNotNull(results);
            // RRF should merge duplicates and boost their scores
        }
    }

    /**
     * Test that close can be called multiple times safely.
     */
    @Test
    public void test_multipleCloseCallsSafe() throws Exception {

import org.codelibs.fess.query.QueryFieldConfig;
import org.codelibs.fess.query.parser.QueryParser;
import org.codelibs.fess.score.QueryRescorer;
import org.codelibs.fess.util.ComponentUtil;
import org.dbflute.optional.OptionalThing;
import org.lastaflute.core.message.UserMessages;
import org.lastaflute.web.util.LaRequestUtil;
import org.opensearch.action.search.SearchRequestBuilder;

import java.util.List;
import java.util.Map;
import java.util.function.Consumer;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.lang.ThreadUtil;
import org.codelibs.fess.Constants;
import org.codelibs.fess.crawler.Crawler;
import org.codelibs.fess.crawler.entity.AccessResult;
import org.codelibs.fess.crawler.entity.AccessResultData;

## Token JWT con scopes { #jwt-token-with-scopes }

Ahora, modifica la *path operation* del token para devolver los scopes solicitados.

Todavía estamos usando el mismo `OAuth2PasswordRequestForm`. Incluye una propiedad `scopes` con una `list` de `str`, con cada scope que recibió en el request.

Y devolvemos los scopes como parte del token JWT.

/// danger | Peligro

## Arbre de dépendances et scopes { #dependency-tree-and-scopes }

Revoyons encore cet arbre de dépendances et les scopes.

Comme la dépendance `get_current_active_user` a une sous-dépendance `get_current_user`, le scope « me » déclaré dans `get_current_active_user` sera inclus dans la liste des scopes requis dans `security_scopes.scopes` passé à `get_current_user`.

## 驗證 `scopes` { #verify-the-scopes }

我們現在要驗證，此相依性與所有相依者（包含路徑操作）所要求的所有 scopes，是否都包含在收到的 token 內所提供的 scopes 中；否則就丟出 `HTTPException`。

為此，我們使用 `security_scopes.scopes`，其中包含一個 `list`，列出所有這些 `str` 形式的 scopes。

{* ../../docs_src/security/tutorial005_an_py310.py hl[130:136] *}

## 相依性樹與 scopes { #dependency-tree-and-scopes }

我們再回顧一次這個相依性樹與 scopes。