if !h.kconfig.Enabled {
		return nil
	}
	if err := h.validate(); err != nil {
		return err
	}
	if h.kconfig.QueueDir != "" {
		if err := h.initQueueStoreOnce.DoWithContext(ctx, h.initQueueStore); err != nil {
			return err
		}
		return h.initKafkaOnce.Do(h.init)
	}
	if err := h.init(); err != nil {
		return err
	}
	go h.startKafkaLogger()
	return nil
}

)

// Validate AMQP arguments
func (a *AMQPArgs) Validate() error {
	if !a.Enable {
		return nil
	}
	if _, err := amqp091.ParseURI(a.URL.String()); err != nil {
		return err
	}
	if a.QueueDir != "" {
		if !filepath.IsAbs(a.QueueDir) {
			return errors.New("queueDir path should be absolute")
		}
	}

	return nil
}

// AMQPTarget - AMQP target
type AMQPTarget struct {
	initOnce once.Init

            return ConfigType.DATA;
        }
        return null;
    }

    protected String getId(final String configId) {
        if (configId == null || configId.length() < 2) {
            return null;
        }
        return configId.substring(1);
    }

    public CrawlingConfig getCrawlingConfig(final String configId) {
        try {
            return crawlingConfigCache.get(configId, () -> {

        return _columnCreatedAt;
    }

    public ColumnInfo columnDocId() {
        return _columnDocId;
    }

    public ColumnInfo columnQueryId() {
        return _columnQueryId;
    }

    public ColumnInfo columnUrl() {
        return _columnUrl;
    }

    public ColumnInfo columnUserInfoId() {
        return _columnUserInfoId;
    }

    }

    public ColumnInfo columnPassword() {
        return _columnPassword;
    }

    public ColumnInfo columnPort() {
        return _columnPort;
    }

    public ColumnInfo columnProtocolScheme() {
        return _columnProtocolScheme;
    }

    public ColumnInfo columnUpdatedBy() {
        return _columnUpdatedBy;
    }

            return !metadata.getVersion().isEmpty();
        }

        public boolean storedInGroupDirectory() {
            return metadata.getArtifactId().isEmpty();
        }

        public String getGroupId() {
            return nullify(metadata.getGroupId());
        }

        public String getArtifactId() {
            return nullify(metadata.getArtifactId());
        }

  E getEntry(@CheckForNull Object key) {
    if (key == null) {
      return null;
    }
    int hash = hash(key);
    return segmentFor(hash).getEntry(key, hash);
  }

  @Override
  public boolean containsKey(@CheckForNull Object key) {
    if (key == null) {
      return false;
    }
    int hash = hash(key);
    return segmentFor(hash).containsKey(key, hash);
  }

  @Override

	if maxKeys < 0 {
		return ErrInvalidMaxKeys
	}

	if encodingType != "" {
		// AWS S3 spec only supports 'url' encoding type
		if !strings.EqualFold(encodingType, "url") {
			return ErrInvalidEncodingMethod
		}
	}

	if !IsValidObjectPrefix(prefix) {
		return ErrInvalidObjectName
	}

	if marker != "" && !HasPrefix(marker, prefix) {
		return ErrNotImplemented
	}

	return ErrNone
}

        return null;
    }

    @Override
    public int xgetNestLevel() {
        return 0;
    }

    @Override
    public int xgetNextNestLevel() {
        return 0;
    }

    @Override
    public boolean isBaseQuery() {
        return false;
    }

    @Override
    public String xgetForeignPropertyName() {
        return null;
    }

    @Override

        checkClosed();
        if (pathProcessor == null) {
            pathProcessor = createPathProcessor();
        }
        return pathProcessor;
    }

    protected PathProcessor createPathProcessor() {
        return new DefaultPathProcessor();
    }

    private ChecksumProcessor checksumProcessor;

    public final ChecksumProcessor getChecksumProcessor() {