for endPos > sw.pos && err == nil {
		var nf int // Bytes written in fragment
		dataStart, dataEnd := sw.sp[0].Offset, sw.sp[0].endOffset()
		if sw.pos < dataStart { // In a hole fragment
			bf := b[:min(int64(len(b)), dataStart-sw.pos)]
			nf, err = zeroWriter{}.Write(bf)
		} else { // In a data fragment
			bf := b[:min(int64(len(b)), dataEnd-sw.pos)]
			nf, err = sw.fw.Write(bf)
		}
		b = b[nf:]
		sw.pos += int64(nf)

			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-api</artifactId>
			<version>${slf4j.version}</version>
		</dependency>
		<dependency>
			<groupId>com.fasterxml.jackson.core</groupId>
			<artifactId>jackson-databind</artifactId>
			<version>${jackson.version}</version>
		</dependency>
		<dependency>
			<groupId>org.apache.tika</groupId>
			<artifactId>tika-core</artifactId>
			<version>${tika.version}</version>

import org.lastaflute.di.exception.IORuntimeException;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.dataformat.yaml.YAMLMapper;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;

    val jacksonAnnotations = "com.fasterxml.jackson.core:jackson-annotations"
    val jacksonCore = "com.fasterxml.jackson.core:jackson-core"
    val jacksonDatabind = "com.fasterxml.jackson.core:jackson-databind"
    val jacksonDatatypeJdk8 = "com.fasterxml.jackson.datatype:jackson-datatype-jdk8"
    val jacksonDatatypeJsr310 = "com.fasterxml.jackson.datatype:jackson-datatype-jsr310"

import org.lastaflute.web.response.StreamResponse;
import org.lastaflute.web.ruts.process.ActionRuntime;
import org.xml.sax.InputSource;

import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;

import jakarta.annotation.Resource;

/**
 * @author shinsuke
 */
public class AdminBackupAction extends FessAdminAction {

    public static final String ROLE = "admin-backup";

import org.lastaflute.web.util.LaRequestUtil;
import org.opensearch.action.update.UpdateRequest;
import org.opensearch.script.Script;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.base.CaseFormat;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;