import org.codelibs.fess.dict.DictionaryItem;

import jakarta.annotation.PostConstruct;

/**
 * Creator for character mapping dictionary files.
 * Handles the creation and management of character mapping dictionaries used for text normalization.
 */
public class CharMappingCreator extends DictionaryCreator {
    private static final Logger logger = LogManager.getLogger(CharMappingCreator.class);

    /**

 */
public class StemmerOverrideCreator extends DictionaryCreator {
    private static final Logger logger = LogManager.getLogger(StemmerOverrideCreator.class);

    /**
     * Constructs a new creator for stemmer override dictionaries.
     * It sets the file pattern to match files starting with "stemmer_override"
     * and ending with ".txt".
     */
    public StemmerOverrideCreator() {
        super("stemmer_override.*\\.txt");
    }

     * DictionaryFile objects.
     *
     * @return an array of dictionary files available in the system
     * @throws DictionaryException if there's an error accessing the dictionaries
     */
    public DictionaryFile<? extends DictionaryItem>[] getDictionaryFiles() {
        try (CurlResponse response = ComponentUtil.getCurlHelper()
                .get("/_configsync/file")

 */
public class StopwordsCreator extends DictionaryCreator {
    private static final Logger logger = LogManager.getLogger(StopwordsCreator.class);

    /**
     * Constructs a new creator for stopwords dictionaries.
     * It sets the file pattern to match files starting with "stopwords"
     * and ending with ".txt".
     */
    public StopwordsCreator() {
        super("stopwords.*\\.txt");
    }

    /**

 */
public class SynonymCreator extends DictionaryCreator {
    private static final Logger logger = LogManager.getLogger(SynonymCreator.class);

    /**
     * Constructs a new creator for synonym dictionaries.
     * It sets the file pattern to match files starting with "synonym"
     * and ending with ".txt".
     */
    public SynonymCreator() {
        super("synonym.*\\.txt");
    }

    /**

import org.codelibs.fess.dict.DictionaryFile;
import org.codelibs.fess.util.ComponentUtil;
import org.dbflute.optional.OptionalEntity;

/**
 * Character mapping file handler for managing character mapping dictionaries.
 * This class provides functionality to load, parse, and manage character mapping
 * rules that define how input characters should be transformed to output characters
 * during text analysis and search processing.
 *

      "sv_analyzer": {
        "type": "custom",
        "tokenizer": "standard",
        "filter": ["lowercase", "swedish_stop", "swedish_stemmer"]
      }
    }
  }
}
```

### 2. Add Custom Dictionaries (Optional)

Create custom dictionary files in: `${fess.dictionary.path}/[lang]/`

Available dictionary types:
- `stopwords.txt` - Words to exclude from indexing
- `stemmer_override.txt` - Custom stemming rules

/**
 * Represents a single character mapping rule that defines how input characters are mapped to output characters
 * for text analysis and search processing. This class is used in character mapping dictionaries to transform
 * text during indexing and search operations.
 *
 * <p>Each mapping item consists of one or more input character sequences that are mapped to a single output

    }

    /**
     * Starts a reindex operation with the specified parameters.
     *
     * @param replaceAliases whether to replace aliases after reindexing
     * @param resetDictionaries whether to reset dictionaries during reindexing
     * @param numberOfShards the number of shards for the new index
     * @param autoExpandReplicas the auto expand replicas setting for the new index

Fess uses OpenSearch/Elasticsearch internally, so you can:

1. Export index mappings and settings from source
2. Apply custom analyzers in Fess's `fess_config.properties`
3. Create synonym dictionaries in Fess's dictionary directory

---

### Apache Solr

For migrating from Apache Solr:

#### Document Export and Import

**Step 1: Export from Solr**

```bash