* methods to add, remove, clear, and retrieve data from these structures.
 *
 * <p>The class is thread-safe due to the use of {@code synchronized} keyword on methods that
 * modify the internal data structures. The internal maps are also declared as {@code volatile}
 * to ensure visibility of changes across threads.
 *
 * <p>The class also provides methods to manage URL patterns for inclusion and exclusion, which
 * are stored as {@code Pattern} objects.

 * <li>{@link #createId(String, Object)}: Creates a unique ID for a key-value pair using Base64 encoding.</li>
 * <li>{@link #getFromArrayIndex(String, String, String)}: Retrieves an array of maps from the index based on the key.</li>
 * <li>{@link #addToArrayIndex(String, String, String, Map)}: Adds a map to the array index.</li>

            } finally {
                queryLogReader.close();
            }
        });
        return deferred.promise();
    }

    /**
     * Indexes documents from an array of maps.
     * @param documents The documents to index.
     * @return The SuggestIndexResponse.
     */
    public SuggestIndexResponse indexFromDocument(final Map<String, Object>[] documents) {

				"application/x-xpinstall",
				"application/x-xmind",
				"application/x-xz",
				"application/x-zoo",
				"application/x400-bp",
				"application/xcap-att+xml",
				"application/xcap-caps+xml",
				"application/xcap-el+xml",
				"application/xcap-error+xml",
				"application/xcap-ns+xml",
				"application/xcon-conference-info-diff+xml",
				"application/xcon-conference-info+xml",

    </magic>
    <glob pattern="*.zoo"/>
  </mime-type>

  <mime-type type="application/x400-bp"/>
  <mime-type type="application/xcap-att+xml"/>
  <mime-type type="application/xcap-caps+xml"/>
  <mime-type type="application/xcap-el+xml"/>
  <mime-type type="application/xcap-error+xml"/>
  <mime-type type="application/xcap-ns+xml"/>
  <mime-type type="application/xcon-conference-info-diff+xml"/>