* <li>Creating updated source maps (for document updates)</li>
 * <li>Converting SuggestItem to JSON string</li>
 * </ul>
 */
public final class SuggestItemSerializer {

    private SuggestItemSerializer() {
        // Utility class
    }

    /**
     * Converts a SuggestItem to a source map for OpenSearch indexing.
     *
     * @param item The SuggestItem to convert

import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;

import org.codelibs.fess.suggest.constants.FieldNames;
import org.junit.Test;

/**
 * Unit tests for SuggestItemSerializer.
 */
public class SuggestItemSerializerTest {

    @Test
    public void testToSource_basicFields() {
        String[] text = { "test text" };
        String[][] readings = { { "reading1" } };

    public Map<String, Object> getSource() {
        return SuggestItemSerializer.toSource(this);
    }

    /**
     * Parses a source map and returns a SuggestItem instance.
     * @param source The source map.
     * @return A SuggestItem instance.
     */
    public static SuggestItem parseSource(final Map<String, Object> source) {
        return SuggestItemSerializer.fromSource(source);
    }

    /**