import org.opensearch.index.query.QueryBuilders;
import org.opensearch.search.SearchHit;
import org.opensearch.transport.client.Client;

/**
 * Internal operations class for deletion functionality.
 * Handles deletion of suggest items by ID, query, or kind.
 *
 * <p>This class is package-private and intended for internal use by SuggestIndexer.
 */
public class DeletionOperations {

    }

    @Test
    void testDeleteAllWords_ok() {
        // Test deleting all suggest words
        String response = checkDeleteMethod("all").asString();
        assertEquals(Integer.valueOf(0), JsonPath.from(response).get("response.status"));
    }

    @Test
    void testDeleteDocumentWords_ok() {
        // Test deleting document-based suggest words

 *
 * <p>Temporary files created by this stream may live in the local filesystem until either:
 *
 * <ul>
 *   <li>{@link #reset} is called (removing the data in this stream and deleting the file), or...
 *   <li>this stream (or, more precisely, its {@link #asByteSource} view) is garbage collected,
 *       <strong>AND</strong> this stream was constructed with {@linkplain

 - ... Standard Events...
 - ResponseBodyEnd _(0 bytes)_
 - **CacheHit**
 - ConnectionReleased
 - CallEnd

## Cache directory

The cache directory must be exclusively owned by a single instance.

Deleting the cache when it is no longer needed can be done.  However this may delete the purpose of the cache
which is designed to persist between app restarts.

```kotlin
cache.delete()
```

## Pruning the Cache

import org.codelibs.fess.suggest.util.SuggestUtil;
import org.opensearch.index.query.QueryBuilders;

/**
 * Internal operations class for bad word and elevate word management.
 * Handles adding, deleting, and restoring special words.
 *
 * <p>This class is package-private and intended for internal use by SuggestIndexer.
 */
public class WordManagementOperations {

        try (Stream<Path> walk = Files.walk(dir, FileVisitOption.FOLLOW_LINKS)) {
            walk.sorted(Comparator.reverseOrder()).forEach(f -> {
                if (logger.isDebugEnabled()) {
                    logger.debug("Deleting: path={}", f);
                }
                try {
                    Files.delete(f);
                } catch (final IOException e) {
                    logger.warn("Failed to delete: path={}", f, e);

    @Test
    public void test_deleteNonExistentId() throws Exception {
        SuggestDeleteResponse response = suggester.indexer().delete("non-existent-id");

        assertNotNull(response);
        // Deleting non-existent ID should not cause error
        assertFalse(response.hasError());
    }

    @Test
    public void test_deleteByInvalidQueryString() throws Exception {
        try {

// This interface provides methods for creating new statements, retrieving all cache keys,
// getting cached statements, setting cached statements, and deleting cached statements.
type Store interface {
	// New creates a new Stmt object and caches it.
	// Parameters:
	//   ctx: The context for the request, which can carry deadlines, cancellation signals, etc.

        } finally {
            Files.deleteIfExists(noImageFile);
        }
    }

    @Test
    public void test_atomicDeleteIfExists_alreadyDeleted() throws Exception {
        // Test that deleting already deleted file doesn't throw
        Path tempFile = Files.createTempFile("already_deleted", ".tmp");
        Files.delete(tempFile);
        assertFalse(Files.exists(tempFile));

            logger.warn("Failed to check existing operation: operation={}", operationName, e);
        }
        return false;
    }

    /**
     * Releases the operation lock by deleting the operation document.
     * Safe to call multiple times; does nothing if the document is already deleted.
     *
     * @param operationName the operation name whose lock should be released.
     */