String[] supportedFields = new String[] { "content", "title" };
    String[] tagFieldNames = new String[] { "label", "virtual_host" };
    String roleFieldName = "role";

    public void test_parseQueryLog() throws Exception {

        QueryLog queryLog = new QueryLog("content:検索エンジン", null);

                if (context.get(EmbeddedDocumentExtractor.class) == null) {
                    final Parser p = context.get(Parser.class);
                    if (p == null) {
                        context.set(Parser.class, this);
                    }
                    context.set(EmbeddedDocumentExtractor.class, new ParsingEmbeddedDocumentExtractor(context));
                }

import org.codelibs.core.beans.util.BeanUtil;
import org.codelibs.fess.crawler.service.impl.OpenSearchDataService;
import org.lastaflute.di.core.SingletonLaContainer;
import org.opensearch.core.xcontent.ToXContent;
import org.opensearch.core.xcontent.XContentBuilder;

/**
 * OpenSearchAccessResult is an implementation of {@link AccessResult} for OpenSearch.
 *
 * @author shinsuke
 *
 */

 * <li>{@link #ANALYZER_SETTINGS_CONTENTS_ANALYZER} - The contents analyzer settings field.</li>
 * <li>{@link #ANALYZER_SETTINGS_CONTENTS_READING_ANALYZER} - The contents reading analyzer settings field.</li>
 * </ul>
 *
 * This class cannot be instantiated.
 */
public final class FieldNames {
    /** The unique identifier field. */
    public static final String ID = "_id";
    /** The text content field. */

```

## Advanced Usage

### Index from Existing Documents

```java
import org.codelibs.fess.suggest.index.contents.document.ESSourceReader;

// Index suggestions from existing Elasticsearch documents
DocumentReader reader = new ESSourceReader(
    client,
    suggester.settings(),
    "content-index",        // source index
    "document"             // document type
);

suggester.indexer()

     <alias type="application/x-cdr"/>
     <alias type="application/cdr"/>
     <alias type="image/x-cdr"/>
     <alias type="image/cdr"/>
     <_comment>CorelDraw</_comment>
     <_comment>cdr: CorelDraw</_comment>
     <_comment>des: CorelDraw X4 and newer</_comment>
     <magic priority="60">
        <match value="RIFF" type="string" offset="0">
           <match value="CDR" type="string" offset="8" />

        sidSet.add(sid);
        if (type == SID.SID_TYPE_DOM_GRP || type == SID.SID_TYPE_ALIAS) {
            try {
                final CIFSContext context = file.getContext();
                final SID[] children = context.getSIDResolver()
                        .getGroupMemberSids(context, file.getServer(), sid.getDomainSid(), sid.getRid(),
                                org.codelibs.jcifs.smb.impl.SID.SID_FLAG_RESOLVE_SIDS);

        String field = "content";

        List<String> results = converter.convert(text, field, "en", "ja");

        assertNotNull(results);
        // With multiple languages, should use ReadingConverterChain
    }

    @Test
    public void testConvertWithEmptyText() throws IOException {
        // Test convert with empty text
        String text = "";
        String field = "content";

        ElevateWord elevateWord2 =
                new ElevateWord("hoge", 2.0f, Collections.singletonList("hoge"), Collections.singletonList("content"), null, null);
        ElevateWord elevateWord3 =
                new ElevateWord("fuga", 2.0f, Collections.singletonList("fuga"), Collections.singletonList("content"), null, null);

### Key Features

- **Multi-Protocol Support**: HTTP/HTTPS, File System, FTP, SMB/CIFS, Cloud Storage (MinIO, S3)