import org.codelibs.fess.opensearch.user.exbhv.UserBhv;
import org.codelibs.fess.opensearch.user.exentity.Role;
import org.codelibs.fess.util.ComponentUtil;
import org.dbflute.cbean.result.PagingResultBean;
import org.dbflute.optional.OptionalEntity;

import jakarta.annotation.Resource;

/**
 * Service class for managing roles.
 */
public class RoleService {

    /**

        // null == Enum should be false
        assertFalse(nullStatus == status);

        // Verify no NullPointerException when comparing with ==
        boolean result = (nullStatus == CrawlerStatus.INITIALIZING);
        assertFalse(result);
    }

    /**
     * Test thread safety of enum
     */
    public void test_threadSafety() throws Exception {
        final int threadCount = 100;

///

Whenever a new request arrives, **FastAPI** will take care of:

* Calling your dependency ("dependable") function with the correct parameters.
* Get the result from your function.
* Assign that result to the parameter in your *path operation function*.

```mermaid
graph TB

common_parameters(["common_parameters"])
read_items["/items/"]
read_users["/users/"]

import org.codelibs.fess.opensearch.config.cbean.BoostDocumentRuleCB;
import org.codelibs.fess.opensearch.config.exbhv.BoostDocumentRuleBhv;
import org.codelibs.fess.opensearch.config.exentity.BoostDocumentRule;
import org.dbflute.cbean.result.PagingResultBean;
import org.dbflute.optional.OptionalEntity;

import jakarta.annotation.Resource;

/**
 * Service class for boost document rule management operations.

import org.codelibs.fess.opensearch.config.exbhv.PathMappingBhv;
import org.codelibs.fess.opensearch.config.exentity.PathMapping;
import org.codelibs.fess.util.ComponentUtil;
import org.dbflute.cbean.result.PagingResultBean;
import org.dbflute.optional.OptionalEntity;

import jakarta.annotation.Resource;

/**
 * Service for path mapping operations.
 */
public class PathMappingService extends FessAppService {

import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

import org.apache.maven.api.annotations.Experimental;

/**
 * Indicates that a given field will be injected with the result of
 * a dependency collection or resolution request. Whether a collection
 * or resolution request is performed is controlled by the {@link #pathScope()}
 * field, the injected field type and the {@link #requestType()}.
 * <p>

    }

    @Test
    @DisplayName("readBytesWireFormat should return 0")
    void testReadBytesWireFormat() {
        byte[] buffer = new byte[256];
        int result = request.readBytesWireFormat(buffer, 0);

        assertEquals(0, result);
    }

    @ParameterizedTest
    @ValueSource(ints = { 0, 10, 50, 100 })
    @DisplayName("writeBytesWireFormat should work at different offsets")

	ctx, cancelFunc := context.WithCancel(ctx)
	cancelFunc()

	user := *GetUser("cancel_transaction", Config{})
	DB.Create(&user)

	err := DB.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
		var result User
		tx.First(&result, user.ID)
		return nil
	})

	if err == nil {
		t.Fatalf("Transaction should get error when using cancelled context")
	}
}

func TestTransactionWithBlock(t *testing.T) {

     * @param params the search request parameters including pagination, filters, etc.
     * @param userBean the optional user bean for access control and personalization
     * @return the search result containing matched documents and metadata
     */
    protected abstract SearchResult search(String query, SearchRequestParams params, OptionalThing<FessUserBean> userBean);

    /**
     * Executes the thumbnail purging job.
     * Removes thumbnail files that have exceeded the configured expiration time.
     *
     * @return a string containing the execution result with the number of deleted files or error message
     */
    public String execute() {
        try {
            final long count = ComponentUtil.getThumbnailManager().purge(getExpiry());