return nullify(metadata.getArtifactId());
        }

        @Override
        public String getBaseVersion() {
            return nullify(metadata.getVersion());
        }

        private String nullify(String str) {
            return (str == null || str.isEmpty()) ? null : str;
        }

        @Override
        public Object getKey() {
            return metadata.toString();

	// Check if we are in DCOS environment, return
	// deployment guide for update procedures.
	if IsDCOS() {
		return mesosDeploymentDoc
	}

	// Check if we are in kubernetes environment, return
	// deployment guide for update procedures.
	if IsKubernetes() {
		return kubernetesDeploymentDoc
	}

	// Check if we are docker environment, return docker update command
	if IsDocker() {

     *
     * @return the oplockLevel
     */
    public final byte getOplockLevel() {
        return this.oplockLevel;
    }

    /**
     * Gets the file identifier.
     *
     * @return the fid
     */
    public final int getFid() {
        return this.fid;
    }

    /**
     * Gets the create action taken.
     *
     * @return the createAction
     */

	case LegacyType:
		return j.ObjectV1.Signature()
	}
	return signatureErr
}

// getModTime will return the ModTime of the underlying version.
func (j xlMetaV2Version) getModTime() time.Time {
	switch j.Type {
	case ObjectType:
		return time.Unix(0, j.ObjectV2.ModTime)
	case DeleteType:
		return time.Unix(0, j.DeleteMarker.ModTime)
	case LegacyType:
		return j.ObjectV1.Stat.ModTime
	}

    @Override
    public String asTableDbName() {
        return asEsIndexType();
    }

    @Override
    protected String asEsIndex() {
        return "fess_config.bad_word";
    }

    @Override
    public String asEsIndexType() {
        return "bad_word";
    }

    @Override
    public String asEsSearchType() {
        return "bad_word";
    }

    @Override

    @Override
    public String asTableDbName() {
        return asEsIndexType();
    }

    @Override
    protected String asEsIndex() {
        return "fess_config.boost_document_rule";
    }

    @Override
    public String asEsIndexType() {
        return "boost_document_rule";
    }

    @Override
    public String asEsSearchType() {
        return "boost_document_rule";
    }

    @Override

    @Override
    public String asTableDbName() {
        return asEsIndexType();
    }

    @Override
    protected String asEsIndex() {
        return "fess_config.duplicate_host";
    }

    @Override
    public String asEsIndexType() {
        return "duplicate_host";
    }

    @Override
    public String asEsSearchType() {
        return "duplicate_host";
    }

    @Override

    @Override
    public String asTableDbName() {
        return asEsIndexType();
    }

    @Override
    protected String asEsIndex() {
        return "fess_config.job_log";
    }

    @Override
    public String asEsIndexType() {
        return "job_log";
    }

    @Override
    public String asEsSearchType() {
        return "job_log";
    }

    @Override
    public JobLogDbm asDBMeta() {

            this.id = id;
            myuniqueByProperty("_id");
            return this;
        }

        public String id() {
            return id;
        }

        public DocMeta version(Long version) {
            this.version = version;
            return this;
        }

        public Long version() {
            return version;
        }

        public DocMeta seqNo(Long seqNo) {

            this.id = id;
            myuniqueByProperty("_id");
            return this;
        }

        public String id() {
            return id;
        }

        public DocMeta version(Long version) {
            this.version = version;
            return this;
        }

        public Long version() {
            return version;
        }

        public DocMeta seqNo(Long seqNo) {