}

type ConnPool interface {
	PrepareContext(ctx context.Context, query string) (*sql.Stmt, error)
}

// New creates a new Stmt object for executing SQL queries.
// It caches the Stmt object for future use and handles preparation and error states.
// Parameters:
//
//	ctx: Context for the request, used to carry deadlines, cancellation signals, etc.
//	key: The key representing the SQL query, used for caching and preparing the statement.

        assertEquals("test_session_123", options.sessionId);
    }

    @Test
    public void test_process_withPropertiesPath() throws Exception {
        // Test that properties path is properly handled
        // Create temporary properties file
        File propFile = File.createTempFile("test", ".properties");
        propFile.deleteOnExit();

import org.opensearch.search.fetch.subphase.highlight.HighlightField;

/**
 * Default implementation of RankFusionSearcher that performs standard OpenSearch queries.
 * This searcher handles query execution, response processing, and document highlighting.
 */
public class DefaultSearcher extends RankFusionSearcher {

    /** Logger for this class. */

    private static final String ID_FIELD = "_id";

    /**
     * Test concurrent registration of searchers from multiple threads.
     * Verifies that CopyOnWriteArrayList handles concurrent modifications safely.
     */
    @Test
    public void test_concurrentSearcherRegistration() throws Exception {
        final int numThreads = 10;
        final int searchersPerThread = 5;

 * loader and prevent it from being garbage collected. This poses a problem for environments where
 * you want to throw away the class loader. For example, dynamically reloading a web application or
 * unloading an OSGi bundle.
 *
 * <p>{@code com.google.common.base.FinalizableReferenceQueue} loads this class in its own class
 * loader. That way, this class doesn't prevent the main class loader from getting garbage

import java.io.File;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;

import org.apache.maven.artifact.handler.ArtifactHandler;
import org.apache.maven.artifact.metadata.ArtifactMetadata;
import org.apache.maven.artifact.repository.ArtifactRepository;
import org.apache.maven.artifact.resolver.filter.ArtifactFilter;

    public String id;

    /** Search/filter parameter for data configuration name. */
    public String name;

    /** Search/filter parameter for data configuration handler name. */
    public String handlerName;

    /** Search/filter parameter for data configuration boost value. */
    public String boost;

    /** Search/filter parameter for data configuration availability status. */

import org.lastaflute.core.message.UserMessages;
import org.opensearch.index.query.QueryBuilder;

import jakarta.annotation.PostConstruct;

/**
 * Query processor component that handles query filters and commands.
 * This class provides a pipeline for processing Lucene queries by applying
 * a chain of filters and executing registered query commands.
 *

            item + " must not be Object#equals to its Object#toString representation",
            !item.equals(item.toString()));
      }
    }
  }

  /**
   * Class used to test whether equals() correctly handles an instance of an incompatible class.
   * Since it is a private inner class, the invoker can never pass in an instance to the tester
   */
  private enum NotAnInstance {
    EQUAL_TO_NOTHING;
  }

這麼做之後，`GzipRequest` 會在把資料交給 *路徑操作* 之前（若有需要）先負責解壓縮。

之後的處理邏輯完全相同。

但由於我們修改了 `GzipRequest.body`，在 **FastAPI** 需要讀取本文時，請求本文會自動解壓縮。

## 在例外處理器中存取請求本文 { #accessing-the-request-body-in-an-exception-handler }

/// tip

要解決相同問題，使用針對 `RequestValidationError` 的自訂處理器來讀取 `body` 通常更簡單（[處理錯誤](../tutorial/handling-errors.md#use-the-requestvalidationerror-body)）。

但本範例仍然有效，並示範了如何與內部元件互動。

///