import static com.google.common.util.concurrent.AbstractFuture.getDoneValue;
import static com.google.common.util.concurrent.AbstractFuture.notInstanceOfDelegatingToFuture;
import static java.lang.Boolean.parseBoolean;
import static java.security.AccessController.doPrivileged;
import static java.util.Objects.requireNonNull;
import static java.util.concurrent.TimeUnit.NANOSECONDS;

        final Object obj = get(key);

        final boolean value;
        if (obj == null) {
            value = defaultValue;
        } else {
            value = Boolean.parseBoolean(obj.toString());
        }

        return value;
    }

    /**
     * Sets a setting value.
     * @param key The key of the setting.
     * @param value The value to set.
     */

        if (ignore == null) {
            if (fessConfig.isCrawlerIgnoreRobotsTags()) {
                return;
            }
        } else if (Boolean.parseBoolean(ignore)) {
            return;
        }

        // meta tag
        try {
            final Node value = getXPathAPI().selectSingleNode(document, META_NAME_ROBOTS_CONTENT);
            if (value != null) {

    }

    String getQueryReplaceTermWithPrefixQuery();

    default boolean getQueryReplaceTermWithPrefixQueryAsBoolean() {
        return Boolean.parseBoolean(getQueryReplaceTermWithPrefixQuery());
    }

    String getQueryDefaultLanguages();

    String getQueryLanguageMapping();

    default Map<String, String> getQueryLanguageMappingMap() {

                if (Constants.TRUE.equalsIgnoreCase(trackTotalHits) || Constants.FALSE.equalsIgnoreCase(trackTotalHits)) {
                    searchRequestBuilder.setTrackTotalHits(Boolean.parseBoolean(trackTotalHits));
                    return;
                }
                try {
                    searchRequestBuilder.setTrackTotalHitsUpTo(Integer.parseInt(trackTotalHits));
                    return;