* @param langFieldName The name of the field that contains language information.
     * @param readingConverter The converter to use for reading fields.
     * @param contentsReadingConverter The converter to use for reading content fields.
     * @param normalizer The normalizer to use for normalizing field values.
     * @param analyzer The analyzer to use for analyzing field values.

import org.apache.lucene.search.TermQuery;
import org.codelibs.core.CoreLibConstants;
import org.codelibs.fess.suggest.converter.AnalyzerConverter;
import org.codelibs.fess.suggest.converter.KatakanaToAlphabetConverter;
import org.codelibs.fess.suggest.converter.ReadingConverter;
import org.codelibs.fess.suggest.converter.ReadingConverterChain;
import org.codelibs.fess.suggest.entity.SuggestItem;

                indexName, getSearchAlias(index), getUpdateAlias(index));
}
```

**Exception Handling:**
```java
try {
    converter.init();
} catch (Exception e) {
    throw new SuggesterException("Failed to initialize converter: "
                                + converter.getClass().getName(), e);
}
```

**Resource Management:**
```java
try (InputStream is = getClass().getClassLoader()

- **Multi-language Support**: Built-in support for Japanese text processing with Kuromoji analyzer
- **Popular Words Analytics**: Track and analyze frequently searched terms
- **Flexible Text Processing**: Configurable converters and normalizers for text transformation
- **OpenSearch Integration**: Seamless integration with OpenSearch/Elasticsearch clusters
- **Asynchronous Operations**: Non-blocking suggestion requests with callback support

        final NumberConverter converter = new NumberConverter("##0");
        assertThat(converter.getAsObject("100"), is((Object) Long.valueOf("100")));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testGetAsString() throws Exception {
        final NumberConverter converter = new NumberConverter("##0");
        assertThat(converter.getAsString(Integer.valueOf("100")), is("100"));
    }

     */
    @Test
    public void testGetAsObjectAndGetAsString() throws Exception {
        final DateConverter converter = new DateConverter("yyyy/MM/dd");
        final Date result = (Date) converter.getAsObject("2008/01/16");
        System.out.println(result);
        assertThat(converter.getAsString(result), is("2008/01/16"));
    }

    /**
     * @throws Exception
     */
    @Test

     */
    @Test
    public void testGetAsObjectAndGetAsString() throws Exception {
        final TimeConverter converter = new TimeConverter("HH:mm:ss");
        final java.sql.Time result = (java.sql.Time) converter.getAsObject("12:34:56");
        System.out.println(result);
        assertThat(converter.getAsString(result), is("12:34:56"));
    }

    /**
     * @throws Exception
     */

     */
    @Test
    public void testGetAsObjectAndGetAsString() throws Exception {
        final SqlDateConverter converter = new SqlDateConverter("yyyy/MM/dd");
        final java.sql.Date result = (java.sql.Date) converter.getAsObject("2008/01/16");
        System.out.println(result);
        assertThat(converter.getAsString(result), is("2008/01/16"));
    }

    /**
     * @throws Exception
     */
    @Test

 */
package org.codelibs.fess.suggest.converter;

import java.util.List;

import junit.framework.TestCase;

public class KatakanaToAlphabetConverterTest extends TestCase {

    private KatakanaToAlphabetConverter converter;

    @Override
    protected void setUp() throws Exception {
        super.setUp();
        converter = new KatakanaToAlphabetConverter();
        converter.init();
    }

        final ReadingConverter converter;
        if (langs == null || langs.length == 0) {
            converter = new LangAnalyzerConverter(null);
        } else {
            final ReadingConverterChain chain = new ReadingConverterChain();
            for (final String lang : langs) {
                chain.addConverter(new LangAnalyzerConverter(lang));
            }
            converter = chain;
        }