* method may throw an {@link Exception} to signal any issues that prevent
 * successful execution of the Mojo.
 *
 * <p>
 * Annotations:
 * </p>
 * <ul>
 * <li>{@link Experimental}: Indicates that this interface or its implementation
 * may still be evolving and could change in future versions.</li>
 * <li>{@link FunctionalInterface}: Denotes that this is a functional interface,

   */
  @Throws(IOException::class)
  fun onData(
    streamId: Int,
    source: BufferedSource,
    byteCount: Int,
    last: Boolean,
  ): Boolean

  /** Indicates the reason why this stream was canceled. */
  fun onReset(
    streamId: Int,
    errorCode: ErrorCode,
  )

  companion object {
    @JvmField val CANCEL: PushObserver = PushObserverCancel()

        ContentCache cache = new ContentCache(data);

        try (InputStream stream = cache.getInputStream()) {
            assertNotNull(stream);
            assertEquals(-1, stream.read()); // Should indicate end of stream
        }
    }

    @Test
    public void testFileBasedCacheWithEmptyFile() throws IOException {
        tempFile = File.createTempFile("empty", ".tmp", Curl.tmpDir);

	mac := hmac.New(sha256.New, key[:])
	mac.Write(bin[:])
	mac.Sum(partKey[:0])
	return partKey
}

// SealETag seals the etag using the object key.
// It does not encrypt empty ETags because such ETags indicate
// that the S3 client hasn't sent an ETag = MD5(object) and
// the backend can pick an ETag value.
func (key ObjectKey) SealETag(etag []byte) []byte {

}

// SetTierFreeVersion sets fi as a free-version. This method is used by
// lower layers to indicate a free-version.
func (fi *FileInfo) SetTierFreeVersion() {
	if fi.Metadata == nil {
		fi.Metadata = make(map[string]string)
	}
	fi.Metadata[ReservedMetadataPrefixLower+tierFVMarker] = ""
}

// SetSkipTierFreeVersion indicates to skip adding a tier free version id.

  /**
   * Pointer to the predecessor of an entry in insertion order. ENDPOINT indicates a node is the
   * first node in insertion order; all values at indices ≥ {@link #size()} are UNSET.
   */
  private transient int @Nullable [] predecessor;

  /**
   * Pointer to the successor of an entry in insertion order. ENDPOINT indicates a node is the last
   * node in insertion order; all values at indices ≥ {@link #size()} are UNSET.

  /**
   * Pointer to the predecessor of an entry in insertion order. ENDPOINT indicates a node is the
   * first node in insertion order; all values at indices ≥ {@link #size()} are UNSET.
   */
  private transient int @Nullable [] predecessor;

  /**
   * Pointer to the successor of an entry in insertion order. ENDPOINT indicates a node is the last
   * node in insertion order; all values at indices ≥ {@link #size()} are UNSET.

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

/**
 * Exception thrown when web API operations encounter errors.
 * This exception includes an HTTP status code to indicate the nature of the error.
 */
public class WebApiException extends FessSystemException {

    private static final long serialVersionUID = 1L;

    /**
     * The HTTP status code associated with this exception.

	// Flag indicating whether callhome is enabled.
	Enable bool `json:"enable"`

	// The interval between callhome cycles
	Frequency time.Duration `json:"frequency"`
}

var configLock sync.RWMutex

// Enabled - indicates if callhome is enabled or not
func (c *Config) Enabled() bool {
	configLock.RLock()
	defer configLock.RUnlock()

	return c.Enable
}

// FrequencyDur - returns the currently configured callhome frequency

     * Returns the primary domain name of the server.
     *
     * @return the primaryDomain
     */
    public final String getPrimaryDomain() {
        return this.primaryDomain;
    }

    /**
     * Indicates whether the session was established as a guest.
     *
     * @return the isLoggedInAsGuest
     */
    public final boolean isLoggedInAsGuest() {
        return this.isLoggedInAsGuest;
    }

    /**