/**
     * Private constructor to prevent instantiation of this utility class.
     */
    private DocumentUtil() {
        // Utility class - no instantiation
    }

    /**
     * Gets a typed value from a document map with a default value.
     *
     * @param <T> the type to convert the value to
     * @param doc the document map to extract the value from

            return parent.retainAll(c);
        }

        @Override
        public void clear() {
            parent.clear();
        }

        @Override
        public E get(final int index) {
            return parent.get(index);
        }

        @Override
        public E set(final int index, final E element) {
            return parent.set(index, element);
        }

        @Override

        // Text with comma gets quoted, but parse preserves quotes
        input = "with,comma";
        escaped = KuromojiCSVUtil.quoteEscape(input); // "with,comma"
        parsed = KuromojiCSVUtil.parse(escaped);
        assertEquals(1, parsed.length);
        assertEquals("\"" + input + "\"", parsed[0]); // Quotes are preserved

        // Text with quotes gets escaped quotes, but escaped quotes don't get unquoted

        this.inputs = ImmutableCollections.copy(inputs);
        this.importedFrom = null;
    }

    /**
     * Get the path/URL of the POM or {@code null} if unknown.
     *
     * @return the location
     */
    public String getLocation() {
        return this.location;
    }

    /**
     * Get the identifier of the POM in the format {@code <groupId>:<artifactId>:<version>}.
     *
     * @return the model id
     */

        }
        this.originalMessageSize = originalMessageSize;
        this.flags = flags;
        this.sessionId = sessionId;
    }

    /**
     * Gets the signature or authentication tag for the encrypted message
     *
     * @return the signature/authentication tag
     */
    public byte[] getSignature() {
        return this.signature;
    }

    /**

            registration.incrementHeartbeatFailures();
        }
    }

    /**
     * Gets the witness server address.
     *
     * @return the witness server address
     */
    public InetAddress getWitnessServer() {
        return witnessServer;
    }

    /**
     * Gets the number of active registrations.
     *
     * @return the number of active registrations
     */

        return source;
    }

    @Override
    public InputLocation getLocation(Object key) {
        return locations != null ? locations.get(key) : null;
    }

    public Map<Object, InputLocation> getLocations() {
        return locations;
    }

    /**
     * Gets the parent InputLocation where this InputLocation may have been imported from.
     * Can return {@code null}.
     *
     * @return InputLocation

                crawler.stop();
            }
        }
    }

    /**
     * Gets the total execution time for index updates.
     *
     * @return the total execution time in milliseconds
     */
    public long getExecuteTime() {
        return executeTime;
    }

    /**
     * Gets the list of crawler session IDs being processed.
     *
     * @return the list of session IDs
     */

import org.opensearch.action.fieldcaps.FieldCapabilitiesResponse;
import org.opensearch.action.get.GetRequest;
import org.opensearch.action.get.GetRequestBuilder;
import org.opensearch.action.get.GetResponse;
import org.opensearch.action.get.MultiGetRequest;
import org.opensearch.action.get.MultiGetRequestBuilder;
import org.opensearch.action.get.MultiGetResponse;
import org.opensearch.action.index.IndexRequest;

            final Attributes attrs = srcrslt.getAttributes();

            //get group attr
            final Attribute attr = attrs.get(fessConfig.getLdapMemberofAttribute());
            if (attr == null) {
                continue;
            }

            for (int i = 0; i < attr.size(); i++) {
                final Object attrValue = attr.get(i);
                if (attrValue != null) {