}).orElse(Collections.emptyList());
    }

    public OptionalEntity<StemmerOverrideFile> getStemmerOverrideFile(final String dictId) {
        return dictionaryManager.getDictionaryFile(dictId).filter(StemmerOverrideFile.class::isInstance)
                .map(file -> OptionalEntity.of((StemmerOverrideFile) file)).orElse(OptionalEntity.empty());
    }

        }).orElse(Collections.emptyList());
    }

    public OptionalEntity<CharMappingFile> getCharMappingFile(final String dictId) {
        return dictionaryManager.getDictionaryFile(dictId).filter(CharMappingFile.class::isInstance)
                .map(file -> OptionalEntity.of((CharMappingFile) file)).orElse(OptionalEntity.empty());
    }

    public OptionalEntity<CharMappingItem> getCharMappingItem(final String dictId, final long id) {

        }).orElse(Collections.emptyList());
    }

    public OptionalEntity<SynonymFile> getSynonymFile(final String dictId) {
        return dictionaryManager.getDictionaryFile(dictId).filter(SynonymFile.class::isInstance)
                .map(file -> OptionalEntity.of((SynonymFile) file)).orElse(OptionalEntity.empty());
    }

    public OptionalEntity<SynonymItem> getSynonymItem(final String dictId, final long id) {

    }

    public OptionalEntity<FavoriteLog> selectEntity(CBCall<FavoriteLogCB> cbLambda) {
        return facadeSelectEntity(createCB(cbLambda));
    }

    protected OptionalEntity<FavoriteLog> facadeSelectEntity(FavoriteLogCB cb) {
        return doSelectOptionalEntity(cb, typeOfSelectedEntity());
    }

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.util;

import org.dbflute.optional.OptionalEntity;

public class OptionalUtil {

    public static <T> OptionalEntity<T> ofNullable(final T entity) {
        return OptionalEntity.ofNullable(entity, () -> {});
    }

                final Function<CREDENTIAL, OptionalEntity<FessUser>> oneArgLambda) {
            resolver.resolve(credentialType, credential -> oneArgLambda.apply(credential));
        }
    }

    protected OptionalEntity<FessUser> doFindLoginUser(final String username, final String cipheredPassword) {
        return userBhv.selectEntity(cb -> {

    }

    public OptionalEntity<Role> selectEntity(CBCall<RoleCB> cbLambda) {
        return facadeSelectEntity(createCB(cbLambda));
    }

    protected OptionalEntity<Role> facadeSelectEntity(RoleCB cb) {
        return doSelectOptionalEntity(cb, typeOfSelectedEntity());
    }

    protected <ENTITY extends Role> OptionalEntity<ENTITY> doSelectOptionalEntity(RoleCB cb, Class<? extends ENTITY> tp) {

    }

    public OptionalEntity<CrawlingInfo> selectEntity(CBCall<CrawlingInfoCB> cbLambda) {
        return facadeSelectEntity(createCB(cbLambda));
    }

    protected OptionalEntity<CrawlingInfo> facadeSelectEntity(CrawlingInfoCB cb) {
        return doSelectOptionalEntity(cb, typeOfSelectedEntity());
    }

                return OptionalEntity.of(permissionSet);
            }).orElseThrow(() -> new InvalidAccessTokenException("invalid_token", "Invalid token: " + token));
        }
        return OptionalEntity.empty();
    }

    }

    public OptionalEntity<JobLog> selectEntity(CBCall<JobLogCB> cbLambda) {
        return facadeSelectEntity(createCB(cbLambda));
    }

    protected OptionalEntity<JobLog> facadeSelectEntity(JobLogCB cb) {
        return doSelectOptionalEntity(cb, typeOfSelectedEntity());
    }